l a g u n a - · pdf file3 technical training renault laguna why renault? for the past 100...

L A G U N A --------------------- C O U P E --------------------

Model introduction Training for Auto body repair centres

1 Technical Training Renault Laguna

COMFORT

DISTINCTIVE UNCOMPROMISING QUALITY


Introduction 4

Systems 8

Electronics 18

Technical Specifications 10

Body 11

Trim & Upholstery 20

11

Airbag and Pretentioners 31

14

Impact fault finding 38

22

Steering 38

Towing and Lifting 45


WHY RENAULT? For the past 100 years, Renault has been one of the motor industry’s most notable innovators. But we have never been motivated by a purely abstract notion of progress. Our objective has always been a purely practical one: to serve the needs of the people who use our vehicles. We know that it is not for people to adapt to our cars, but for our cars to adapt to people. This is why we believe, for instance, that a response to the environmental challenges of the 21st century should involve a lot more than taking measures to reduce CO2 emissions. Every motor vehicle has an impact upon the environment, not only during its service life, but before and after it as well. This is why Renault eco2 vehicles are produced in environmentally responsible, ISO 14001- certified factories, it’s why our eco2 cars emit less than 140g of CO2 g/km and why they are not only 85% recyclable but actually use already-recycled plastic materials in their production. Reassuringly, the occupants of today’s Renault cars are protected more completely and more effectively than ever before. The effectiveness of our innovative new safety systems is underwritten by rigorous analysis and testing. And equally importantly, having established that the systems truly do work, we fit them - as standard - to every vehicle we make. As a result, Renault is the only marque in the world able to offer 12 vehicles with the maximum rating of 5 stars in the independent Euro NCAP safety crash tests. In our view, progress is not progress unless it is shared by all. This is why every Renault offers a unique combination of build quality, comfort, road holding, ergonomics, safety and environmental protection - all under the banner of the Renault standard. And if that title sounds a little ambitious, its intention couldn’t be clearer - it is, quite simply, to make your life better. DRIVE THE CHANGE. The philosophy that encapsulates Renault brand values and expresses the ambition of Renault; an innovative, human company, to pioneer sustainable mobility for all. France's number-one car brand, Renault builds on more than 110 years of innovation to bring customers breakthrough top-quality products and services that are ingenious, appealing, affordable and carbon-efficient. Renault’s brand expresses the deep-rooted values of our business culture - enthusiastic, innovative, human – and forges a new path in automotive design and use.

INTUITION ALWAYS TRUST

YOUR FIRST IMPRESSIONS - ESPECIALLY IF THEY’RE RIGHT

SLEEK, CLASSY, DISTINCTIVE. Words that instinctively come to mind when you first see the new Laguna Coupé. With its fluid, elegant design, along with high levels of performance and equipment, the new Laguna Coupé writes a fresh page in the history of exceptional coupés. The advanced technology of its 4 Control chassis and the powerful V6 engine are the finest evidence of Renault innovation.


PERFECTION

The new Laguna Coupé combines a unique collection of premium equipment. Displaying information on communication, audio and 3D navigation on a perfectly integrated in-dash screen, the multimedia system is activated either by voice or by using the central control panel. Keyless starting by remote control and locking/unlocking of the doors and boot. From DVD mapping to signature sound by Bose® and hands-free Bluetooth® telephone, this practical technology is all to be found on board.


INNOVATION MAXIMUM COMFORT AND PERFORMANCE A DISTINCTIVE TOP-OF-THE-RANGE DRIVING ENVIRONMENT. The new Laguna Coupé has a distinctive sporty elegance with its full leather upholstery and leather steering wheel embellished with overstitching. For maximum driving comfort, even the passenger seat is height adjustable, while the de-icing door mirrors are electrically adjustable. Dual-zone climate control gives you personalised temperature control.

A DISTINCTIVE TOP-OF-THE-RANGE DRIVING ENVIRONMENT. With the following features’

1. Dual zone climate control. 2. Door mirrors. 3. Speed limiter /cruise control. 4. Fingertip controls. 5. Automatic light and rain sensors. 6. Tom Tom satellite navigation. 7. Renault keyless card. 8. Bi-xenon headlights. 9. Rear led lights. 10. Parking proximity sensors. 11. Active headrests. 12. Isofix child seat.


DIMENSIONS (mm)

A Wheelbase 2 694 B Overall length 4 643 C Front overhang 1 022 D Rear overhangs 927 E Front track 1 548 F Rear track 1 542 G Overall width without exterior mirrors 1 812 G Overall width with exterior mirrors 2 082 H Overall height 1 398 J Unladen sill height 769 K Ground clearance 120 L Rear legroom 173 M Front elbow room 1 495 M1 Rear elbow room 1 440 N Front shoulder room 1 433 N1 Rear shoulder room 1 366 P Front headroom measured at 847 14° Q Rear headroom measured at 815 14° Y Upper boot aperture width 860 Y1 Lower boot aperture width 975 Y2 Maximum boot aperture width 980 Y3 Inside width between wheel arches 1 000 Z Height up to the parcel shelf 450 Z1 Loading length 1 000 Z2 Loading length (seats down) 1 800

Boot Volume (Dm3 standard ISO) 423


COLOURS Note: Printing limitations do not permit the subtle paint shades to be shown with complete accuracy.

Glacier White

369

Platinum Silver

D69

Oyster Grey

KNG

Pearl Black

676


SYSTEMS DYNAMIC SENSATION WITH MAXIMUM SAFETY. It’s true: a conventionally designed chassis with front-wheel steering can give excellent road holding. But for engineers at Renault, “excellent” just isn’t good enough. They wanted to go even further when it came to control, stability and safety. The outcome of their ground-breaking research is called 4Control - and it delivers a new level of exceptional driving pleasure and efficiency. It is the wheel reinvented. With its 4-wheel steering, the 4Control chassis gives you a unique sense of precision, responsiveness and handling. The 4Control system acts on the steering angle of the rear wheels relative to your speed. Below 60 kph (1) the rear wheels point in the opposite direction to those at the front. So, the turning circle is reduced, meaning easier manoeuvring, and improved handling on winding roads. Above 60 kph (2) the rear wheels point in the same direction as the front wheels. When cornering, this means the rear tyres are perfectly aligned for the direction in which you’re turning, and steering wheel movement is decreased. This makes the new Laguna Coupé highly stable when driving round bends. For maximum safety, the 4Control computer is also linked to the ESP and ABS electronic systems. Because it can recognise emergency situations immediately, it adjusts the steering angle for the rear wheels instantaneously, so you can safely make quick avoidance manoeuvres.

(1) (2)

ESP

The Electronic Stability Programme with CSV under steer control automatically corrects the Vehicle’s trajectory when detecting a skid, under conditions such as under steering, Over steering, emergency avoidance, or even a wheel on a verge. When the actual vehicle Trajectory is found to diverge from the set vehicle trajectory, the controller adjusts the Engine torque and applies selective braking on one or more wheels to restore the set Trajectory.


EBA Emergency Brake Assist reduces stopping distances by automatically applying the cars Full braking power in an emergency situation. When the controller detects an emergency Situation (rapid action on brake pedal), it applies maximum available brake power and holds it until the pedal is fully released. The system also switches to ABS regulation. The result is Vehicle braking as it would have been applied by an expert driver. ABS with EBD ABS keeps the wheels from fully locking up during emergency braking to allow the driver To maintain steering control. EBD (Electronic brake distribution) is a complementary system embedded in ABS. It continually manages break-force distribution between the front and rear wheels. Sensors on each wheel constantly monitor rotation speed. As soon as one of the wheels starts to lock up, a central controller trigger a hydraulic compensation system. EBD uses the hydraulic system and ABS sensors to adjust braking between axles.

Navigating systems

The Two navigation systems – the Cumana blue tooth cd auditorium – and the Cumana DVD grand auditorium systems are taken from the new Laguna.


TECHNICAL SPECIFICATIONS

LAGUNA COUPÉ-4 WHEEL STEERING CONTROL CHASSIS ENGINE 3.5 litre V6

Fuel injection type Multipoint sequential

Number of cylinders / valves 6 in-line /24

Displacement (cc) 3 498

Power (kW @ rpm) 177 at 6 000

Torque (Nm @ rpm) 330 at 4 400

Fuel requirement Unleaded Petrol

TRANSMISSION

Number of forward gears 6-speed automatic

STEERING

Power assisted - Hydraulic Variable

PERFORMANCE

Acceleration: 0 - 100 km/h (sec) 7.4

Maximum speed (km/h) 244

AERODYNAMICS

Drag coefficient/Area (Cd/A) 0.307

SUSPENSION

Front Pseudo Mac-Phearson

Rear Flexible beam

FUEL CONSUMPTION

Litres /100 km (Urban cycle) 15

Litres /100 km (Extra-urban cycle) 7.4

Litres /100 km (Combined cycle) 10

CO2 emissions (g/km) 238

Fuel tank capacity (litres) 66

SEATING

Number of seats 4

WEIGHT & VOLUMES

Maximum load volume (litres) 873

Minimum load volume (litres) 423

Gross train weight (kg) 3 452

Gross vehicle weight (kg) 1 952

Kerb weight excluding driver (kg) 1 522

Maximum payload including driver (kg) 335

Maximum towing weight unbraked - driver only (kg) 650

BRAKES

Bosch 8.0 system Anti-lock Brakes with EBD

(Electronic Brake-Force Distribution) Standard

EBA (Emergency Brake Assist) Standard

ESP (Electronic Stability Programme) Standard

Front 320mm Ventilated discs

Rear 300mm Solid discs

WHEELS & TYRES

Wheels size 7.5 J18

Wheels type Alloy

Tyres 225/45/R18 95W - Interlagos

Spare wheel 18" with inflation kit

WARRANTY / SERVICE / MAINTENANCE

5 Year / 150 000 km mechanical warranty Standard

6 Year anti-corrosion warranty Standard

5 Year / 100 000 km maintenance plan Standard


BODY

Vehicle: location of vehicle identification - Plate (a) - Number (b) - Cold-Marking (c)

Detailed View of the Vehicle Identification Plate (1) Vehicle type mine and type number; this information also appears on marking (B) (2) MGVW (Maximum Gross Vehicle Weight) (3) GTW (Gross train weight, vehicle under load with trailer) (4) Maximum permissible front axle load (5) Maximum permissible rear axle load (6) Vehicle technical specifications (7) Paintwork reference number (8) Equipment level (9) Vehicle type (10) Upholstery code (11) Additional equipment details (12) Fabrication number (13) Interior trim code


BODY

Frame The After-Sales cutting section of the body side is different from the factory cutting section. The body side is made up of two parts: the front section and the rear section.

During manufacturing, the body side pressing process is not standard and unlike other vehicle manufacturing. The body side is assembled with the reinforcements. The rear wing panel and the sill panel are pressed seprately. The three parts are then assembled by electric resistance welding.

In After-Sales, the rear wing panel and sill panel connection is made by gas metal arc welding. The recommendations concerning this special weld joint are described in the Bodywork Structure Repair Manual (MR400). The gas metal arc spot welds in this zone do not need to be levelled.


BODY

Frame

(32) Scuttle side panel reinforcement, (35) B-pillar reinforcement, (33) A-pillar reinforcement, (36) Sill panel reinforcement. (34) Windscreen pillar reinforcement,

(37) Roof, (41) A-pillar lining, (38) Roof rear cross member, (42) Side floor, (39) Roof middle cross member, (43) pillar lining, (40) Roof front cross member, (44) Sill panel lining.


BODY

Frame (32) Body side rear section. (34) Quarter panel lining. (33) Rear end panel. (35) rear light mounting element, upper section.

(36) Rear side parcel shelf. (39) Rear parcel shelf. (37) Rear inner wheel arch. (40) Body side extension. (38) Rear side rain channel.


BODY

The outer surface The roof of the Laguna is jointed to the body sides by transparent lazar welding.

For technical reasons to facilitate assembly the joint between the bottom of the rear wing and the sill panel forms a reduced gourd, this zone is finished by applying a mastic seal.

The bonnet and the entire bonnet lining of the Laguna Coupe are made of aluminium.

The front wings and the frameless doors of the Laguna are made of steel.


BODY

The luggage compartment lid of the Laguna coupe is made of SMC Plastic (Sheet-moulded composite)

The hinges of the luggage compartment lid are the swan neck type. They are located in the damp zone in order to facilitate access to the luggage compartment.

An in-depth, systematic study has been carried out right from the earliest stages of development (choice of technology and materials, e.g. an engine cradle and add on made of aluminium), resulting in architecturally innovative solutions (insulation, structure). For example, the utilisation of steel with an extremely high yield limit (TTTHLE) for the structure of the bodywork reconciles weight distribution, an increased stiffness of the body and an improved level of protection in the event of an impact.


ELECTRONICS

V6 Vehicle Battery The V6 vehicle’s battery is located in the emergency spare wheel compartment.

Pyrotechnic disconnecting switch The positive connection is equipped with the Pyrotechnic disconnecting switch. The switch cuts the electrical supply in the event of a rear impact and must be replaced.

Two large cross-sectional cables carry the electrical supply between the battery, the starter and the battery disconnection unit located in the engine compartment.

Battery disconnection unit located in the engine

compartment

Connecting cable located in the emergency spare

wheel compartment

Starter located in the engine compartment


ELECTRONICS

A fuse box called the battery return unit; is located near the battery. This unit provides primary protection of the electrical circuit thanks to its 3 high capacity fuses.

The Electrical cable crosses the rear floor via a waterproof connection under the left side of the vehicle. It then runs to the front in a protective channel.

The main battery earth terminal is located on the bulk head above the brake fluid reservoir.


ELECTRONICS

Fuse Box Locations The vehicle has several fuse boxes: - Passenger compartment fuse and relay box. - Max fuse box. - Protection and Switching Unit fuses. - Battery protection fuses.

Passenger compartment fuse and relay box Max fuse box

Protection and Switching Unit fuses Battery protection fuses


TRIM & UPHOLSTERY

Removal of the front Seat cover To remove the cover, place your hand in the middle of the cover to unclip the two top clips. (Note: The shape of the top clip is different between the Laguna hatch and estate.) Then, lift the cover to detach the lower fixings.

Rear Seat Access sensor The seat base is moved forward electrically with double speed compared to comfort adjustment. Principle: Seat back tilted forwards:

The seat runners move forwards as soon as the seatback enters zone 3. Seat back tilted back wards:

The seatback enters zone 2 and the runners stop.

If the seatback is tilted back to zone 3, the runners move forward again.

If the seatback is tilted back to zone 1, the runners move back to the initial adjustment position. Redemption


TRIM & UPHOLSTERY

Head Lining During manufacture, the headlining is fitted before the windscreen. The headlining is removed after fully reclining the seatbacks and removing the door. Removing an airbag badge leads to its destruction. It is impossible to release the clips. The clips must be replaced after the repairs.


TRIM & UPHOLSTERY

Door Window Mechanism The window mechanism adjusts the electric window glass. The door module incorporates "the short-drop function". The door seal provides the upper sealing of the sliding window glass. The module of the external and internal door handle signals the order (via the integrated sensor) to the door module to lower the window a few centimetres in order to be able to open the door. If the door is not opened in 20 seconds the window will close automatically- if the window does not close automatically; you can manually close the window by 6 successive activations of the window control switch inside the vehicle.

Adjusting the sliding window The electric window glass is adjusted by following a specific order: X, Z, and then Y.

X

X

Z

Y

Z

Y

12mm


TRIM & UPHOLSTERY

Window mechanism adjustment The electric window glass is secured to the window mechanism by clamping the front section. The rear section is secured by a bolt which passes through the glass and a spacer provides the interface. Observing the correct tightening 8 NM for the front and rear mountings this will prevent the window from breaking. When the operating slides are in the bottom position, it is possible to make "fine" adjustment of the electric window glass at Z. It is also possible to adjust the electric window glass and window mechanism assembly; this adjustment can be made without having to remove the door trim.

Adjusting the Front Side Door Electric window glass Perform all movement of the front side door electric window glass with the vehicle engine running. Close the front side door each time an adjustment is made to check the result. Start by adjusting the window X axis

Open the front side door. Position the front side door electric window glass in the upper position.

Remove the front side door trim. Remove the blanking covers (1).


TRIM & UPHOLSTERY

Manually lock the front side door lock (check that the window raises). Loosen the bolts of the front side door sliding window (2).

Place three pieces of masking tape on the front side door sliding window and draw two lines at the dimensions shown: - (X1) = 6 mm, - (X2) = 10 mm. Position a suction cup on the front side door sliding window. Unlock the front side door lock using the exterior door handle (check that the window lowers). Close the front side door with an operator inside the vehicle and another outside the vehicle.

Place the front side door sliding window at the dimensions shown: (X3) = 5 to 6 mm - if the X axis play is too tight: push the front side door sliding window forwards. - if the X axis play is not tight enough: push the front side door sliding window backwards. Check the alignment of the front side door sliding window in relation to the rear quarter panel window.


TRIM & UPHOLSTERY

Next simultaneously adjust the Z axis of the window Place the front side door sliding window at the dimensions shown, once adjusted it must be located in the adjustment range between 6 and 10 mm in relation to the body side trim seal.

Make an adjustment to the bolts (4) using a no. 5 BTR wrench, after having completely lowered the front side door sliding window. Check that none of these actions causes the front side door sliding window to become misaligned in relation to the rear quarter panel window: - Window too high towards the front: Turn the bolt (5) anticlockwise (1 turn = 1 mm). - Window too low towards the front: Turn the bolt (5) clockwise (1 turn = 1 mm). - Window too high towards the back: Turn the bolt (6) anticlockwise (1 turn = 1 mm). - Window too low towards the back: Turn the bolt (6) clockwise (1 turn = 1 mm).

Adjust the Y axis of the window

Undo the nuts; fit a shim (7) between the front side door and the rear wing panel. Rest the front side door on the shim.


TRIM & UPHOLSTERY

Measure the dimension (X4) and (X5) of the front side door sliding window. The difference between (X4) and (X5) must be 5 mm more at (X5). Example: - If (X5) = 20 mm then (X4) = 15 mm.

Adjust the Y play by moving the rear lower section of the front electric window mechanism. Tighten the lower nut of the rear rail of the front side door electric window mechanism (be careful not to move the rear rail of the front side door electric window mechanism when tightening the nut). Remove the shim. Close the front side door. Open the front side door and lower the front side door sliding window completely (this action allows the front rail of the front side door electric window mechanism to be positioned correctly). Tighten the lower nut of the front rail of the front side door electric window mechanism (be careful not to move the front rail of the front side door electric window mechanism when tightening the nut). Check that the front side door sliding window is working by raising and lowering the window completely in one-touch mode. Raise the front side door sliding window fully. Close the front side door again. Check that the front side door sliding window is in the right position. Refit the blanking covers (3). Remove the masking tape from the front side door sliding window.

It is possible to carry out a finishing adjustment on the Y axis without having to remove the front side door trim. Check the flush-fitting of the front side door sliding window in relation to the rear quarter panel window: - if the front side door sliding window comes out too far in relation to the rear quarter panel window: loosen the nuts and push the rear rail of the front side door electric window mechanism towards the vehicle exterior. - if the front side door electric window glass does not come out enough in relation to the rear

quarter panel window:


TRIM & UPHOLSTERY

Loosen the nuts and push the rear rail of the front side door electric window mechanism towards the inside of the vehicle. Refit the front side door trim, carry out a sealing test.

Front side door lock

Disconnect the battery Removal: - The front side door trim - The front side door sealing film Protect the side impact sensor to prevent any accidental damage (card and adhesive). Remove: - The front side door lock barrel or the dummy lock, - The front side exterior door handle - Drill out the rivet To avoid any risk of corrosion after the localised stripping of the panel, reapply the protective Coating. Unclip the front side door exterior handle module (2) Remove the front side door exterior handle module (3) from the front side door panel.

Remove the bolts (4).


TRIM & UPHOLSTERY

Gently lift the front side door lock to remove it from the retaining hook (5). Remove the « lock - exterior handle module » assembly from the front side door box section. Disconnect the connectors (depending on equipment level). Unclip the front side door lock cable from the front side exterior door handle module.

Always replace the front side door module rivet and refit Clip the front side door lock cable onto the front side door exterior handle module. Fit the « lock - exterior handle module » assembly into the front side door box section. Connect the connectors (depending on equipment level). Position the front side door lock on the front side door box section retaining hook (6). Refit the bolts (4) in order (7), (8) and (9)

Remove of the Front side door lock barrel

Unclip the blanking cover or carefully remove the seal giving access to unlock the front side door lock barrel. Loosen the locking bolt completely without removing it. Remove the front side door lock barrel.


TRIM & UPHOLSTERY

Refit: Position the front side door lock barrel. Torque tighten the lock barrel bolt (2 N.M) whilst holding the front side door lock barrel at (1). Clip in the blanking piece (replace it if necessary).Carry out a function test on the front side door lock barrel. Torques tightening lock barrel bolt 2 NM.

Sealing the door mirror zone

The door mirror zone is a critical area in terms of air tightness. During an After-Sales repair, particular attention must be taken in order to correctly repair this zone. To do this, there is a special kit which will be issued with instructions detailing the positioning of each piece of foam or patch. The part number to block the rear view mirror zone D91 is: 828608358R (768C52093R + 768C59373R + 768C50003R + 768C52358R + fitting instructions being created) The aluminium patch 8200043181 (50x30) Will be sold in units (already exists in Spare Parts)

The aluminium patch 8200090858 (25x25) will not be on sale. The network will cut the patch 8200043181. Check to ensure that the aluminium patch is properly fitted over the door edge. Area 1


TRIM & UPHOLSTERY

Area 2 Position the foam at the join with the rear-view mirror channel. Pay particular attention to position the return edge of the foam up against Z on the door box section. Area 3 Fit the foam in position, taking care to correctly position the tip facing upwards.


AIRBAG AND PRETENSIONERS

Door Sealing When replacing the door seal you must scrupulously observe the repair procedures, the effectiveness of the seal depends on this.

Safety Instructions You will always be asked for the safety instruction sheet: - When requesting technical assistance from the Techline, - To be enclosed when returning monitored parts on request. The log is needed for warranty

reimbursement and enables better analysis of the parts which have been removed. All operations on the airbag system must be carried out by qualified trained personnel. Safety rules must be observed whenever work is carried out on a component to prevent physical damage or human injury:

- Make sure that the battery is properly charged to avoid damaging computers with a low charge, use the appropriate tools, when working on the airbag system, it is essential to use the computer locking command to avoid accidental triggering (all the trigger lines will be inhibited).

1. Driver's front airbag The role of the driver's front airbag is to protect the driver's head in the event of frontal impact.



2. Passenger front airbag The role of the passenger front airbag is to protect the front passenger's head in the event of frontal impact.

3. Airbag computer The role of the airbag computer is to take control of all the vehicle's restraint devices intended to ensure the protection of the occupants (driver and front passenger).

4. Front Side Airbag The role of the passenger side airbag is to protect the front passenger's chest and head in case of side impact.



5. Airbag deactivation key

The passenger airbag deactivation key informs the airbag computer of a request to deactivate the passenger front airbag.

The airbag computer controls all of the vehicle's restraint devices intended to ensure the protection of the occupants (driver and front passenger). The airbag computer is designed to perform the following functions: – Detection and confirmation of front longitudinal impacts; – Corresponding activation of the pyrotechnic restraint devices (e.g.: pretensioner, airbag); – Management and monitoring of the Airbag fault and Airbag off warning lights on the

instrument panel (Wire connections); – Management of the warning lights for the Seat belt reminder, – Activation of the crash output signal in the event of a crash (wire connection); – Management of the fault finding signals (signals provided by the fault manager in response

to fault finding requests, whether this consists of internal faults or input / output fault finding).

Special notes: 1. Front impacts: The detection of front impacts takes into account the signals from the computer's internal accelerometers. A frontal algorithm produces a characterisation of the impact using the sensor signals in order to initiate an adapted protection. It generates a crash output signal according to the type of impact in order to inform the other computers that a crash has been detected. The programming applied by the various computers likely to use this information is not described in this functional description. Additional information, for example the position of the inhibition key, consequently modify the behaviour of the system in order to better respond to the protection requirements resulting from the situation identified and characterised.

2. Inhibition of passenger triggers lines: This function is managed by the airbag computer according to the position of the passenger airbag inhibition switch. The change in status of the inhibition switch is recognised for 10 seconds after the vehicle ignition is switched on (computer supply). Inhibition programming: – Trigger lines inhibited and Airbag Off warning light lit if the switch is OFF (100 Ω); – Trigger lines authorised if the switch is ON (400 Ω); – Trigger lines inhibited, Airbag Fault and Airbag Off warning lights lit if a fault is detected,

if the switch is not configured and detected as present, or if there is a change of position outside of the conditions. By default, when the key is in the inhibition position, the following protections and signals are inhibited in the event of a crash:



– Front passenger front airbag, – SBR warnings*: the inhibition key inhibits the warning light. This can still be configured using the diagnostic function, except in the case of SBR warnings*.

3. Seat belt locking monitoring: This function is managed by the computer (warning light and audible signal): – Driver’s seat belt buckled (contact open), – Driver’s seat belt not buckled (contact closed).

4. Management and Monitoring of the airbag warning lights: The airbag computer controls and checks the status of the Airbag fault and Airbag Off warning lights on the instrument panel. These signals are exchanged via wire. The Airbag fault warning light is lit for 4 seconds when the ignition is switched on (+ after ignition). This is the amount of time required by the system to become operational after the vehicle is started. It then remains off except under the following conditions: – Detection and registering of an airbag system fault (input/output fault, configuration fault), – A crash has been detected and registered, – If the computer is crash locked by a diagnostic tool, – If the computer must be programmed or reprogrammed.

The Airbag Off warning light represents the actual status of passenger airbag inhibition: – "off" = active (switch "ON"), – "lit" = passenger airbag inactive (switch "OFF" or fault detected on the switch line).

The 2 warning lights can be illuminated simultaneously.

5. "Crash output" signal activation. A "crash output" signal is transmitted by a wire, according to the type of impact, in order to inform the other computers that a crash has been detected. The functionality described below is given for information and cannot in any case be considered as contractual.

6. Management of fault finding signals. – Fault finding of internal functions (self-test when switched on, verification of the

configuration), – fault finding for external functions (pyrotechnic ignition modules); – fault finding for supply, – Storage of faults identified when the vehicle is started, while the engine is running, or when

the ignition is switched off, – Permanent storage of the parameters relating to the crash algorithm and signals recorded

during the crash, – Permanent storage of system faults present before a crash, – Control of the warning lights and the crash output signal.

List and location of components

Number Description 1 Airbag computer

2 Driver's lateral acceleration sensor (remote) 3 Front passenger's lateral acceleration sensor (remote) 4 Driver's front airbag 5 Front passenger front airbag 6 Driver's front seat belt buckle pyrotechnic inertia reel



7 Passenger's front seat belt buckle pyrotechnic inertia reel 8 Driver's side airbag 9 Front passenger side airbag 10 Front passenger airbag inhibition switch 11 Driver's seat belt buckle contact 12 Front passenger seat belt buckle contact 13 Occupant presence detection sensor 14 Instrument panel (warning light functions) 15 Radio (''mute'' function) 16 Buzzer (audible warning function)

The airbag computer monitors all of the vehicle's restraint devices intended to ensure occupant protection (driver, front and rear passengers).

The computer is designed to carry out the following functions: – Detection and confirmation of front longitudinal impacts and/or side impacts; – Corresponding activation of the pyrotechnic restraint devices (e.g.: pretensioners, airbag); – Management of the function inhibiting the trigger lines and the lateral acceleration sensors; – Management and monitoring of the Airbag fault and Airbag Off warning lights on the

instrument panel (wire connections);

1

4

1

2 6

8

11

4

1 14

16

3

7

9

12

15

10

5



– Management of the warning lights for the SBR*, – Management of the audible function for the SBR*, – Management of the radio cut-off for the SBR*, – Activation of the crash output signal in the event of a crash (wire connection), – Management of the fault finding signals (signals provided by the fault manager in response

to fault finding requests regarding internal faults or input/output fault finding).

Special notes:

1- Longitudinal impacts: The detection of front or rear longitudinal impacts takes into account the signals from the internal accelerometers of the computer. A frontal algorithm produces a characterisation of the impact using the sensor signals in order to initiate an adapted protection. It generates a crash output signal according to the type of impact in order to inform the other computers that a crash has been detected. The programming applied by the various computers likely to use this information is not described in this functional description. Additional information, for example the position of the inhibition key, consequently modify the behaviour of the system in order to better respond to the protection requirements resulting from the situation identified and characterised. 2- Side impacts: A side algorithm produces a characterisation of the impact using the signals from the side sensors and the computer internal sensor in order to initiate a protection adapted to the side impact. It generates a crash output signal according to the type of impact in order to inform the other computers that a crash has been detected. On vehicle versions that do not have these side sensors, the airbag computer nevertheless can handle the side detection for the crash output. The programming applied by the various computers likely to use this information is not described in this functional description. Additional information, for example the position of the inhibition key, may consequently modify the behaviour of the system (depending on the configuration adopted) in order to better respond to the protection requirements resulting from the situation identified and characterised. SBR*: (Seat Belt Reminder) 3- Inhibition of passenger triggers lines: This function is managed by the airbag computer, according to the position of the passenger airbag inhibition switch and taking into account the vehicle context. The status change of the inhibition switch responds to a transverse programming (manufacturer business rule) that authorises recognition for 10 seconds after the vehicle ignition is switched on (computer supply). Inhibition programming: – Trigger lines inhibited and Airbag Off warning light lit if the switch is OFF (100 Ω), – Trigger lines authorised if the switch is ON (400 Ω), – trigger lines inhibited, Airbag Fault and Airbag Off warning lights lit if a fault is detected, if

the switch is not configured and detected as present, or if there is a change of position outside of the conditions. By default, when the key is in the inhibition position, the following protections and signals are inhibited in the event of a crash:

– Front passenger front airbag; – Front passenger chest-level airbag; – SBR warnings*: the inhibition key inhibits the warning light and buzzer, and deactivates the

occupant warning by radio cut-off. This can still be configured using the diagnostic function, except in the case of SBR warnings*. The passenger front airbag and passenger front chest-level airbag are inhibited when the locking switch is



positioned on OFF or when DF028 PASSENGER AIRBAG STATUS INDICATOR LIGHT CIRCUIT or DF193 PASSENGER AIRBAG LOCKING STATUS CHANGE is present in the computer memory. 4- Seat belt locking monitoring: This function is managed by the computer (warning light and audible signal): – Driver’s seat belt buckled (contact open), – Driver’s seat belt not buckled (contact closed). 5- Management and monitoring of the airbag warning lights: The airbag computer controls and checks the status of the Airbag fault and Airbag Off warning lights on the instrument panel. These signals are exchanged via wire. The Airbag fault warning light is lit for 4 seconds when the ignition is switched on (+ after ignition). This is the amount of time required by the system to become operational after the vehicle is started. It then remains off except under the following conditions: – Detection and recording of an airbag system fault (input/output fault, configuration fault), – A crash has been detected and registered, – If the computer is crash locked by a diagnostic tool, – If the computer must be programmed or reprogrammed. The Airbag Off warning light represents the actual inhibition status of the passenger airbags: – "off" = active (switch "ON"), – "lit" = passenger airbags inactive (switch "OFF" or fault detected on the switch line). The 2 warning lights can be illuminated simultaneously. SBR*: Seat Belt Reminder 6- Activation of "Crash output" signal. A crash output signal is transmitted by a wire, according to the type of impact, in order to inform the other computers that a crash has been detected. The functionality described below is given for information and cannot in any case be considered as contractual. Impact types Customer complaints Front: deactivation of automatic locking when driving, activation of the hazard warning lights, and unlocking of the steering column. Rear: deactivation of automatic locking when driving, activation of the hazard warning lights, and unlocking of the steering column. Side: deactivation of automatic locking when driving, activation of the hazard warning lights, and unlocking of the steering column. 7- Management of fault finding signals. – Fault finding of internal functions (self-test when switched on, verification of the

configuration), – Fault finding of external functions (pyrotechnic ignition modules and sensors), – fault finding for supply, – Storage of faults identified when the vehicle is started, while the engine is running, or when

the ignition is switched off, – Permanent storage of the parameters relating to the crash algorithm and signals recorded

during the crash, – Permanent storage of system faults present before a crash, – Control of the warning lights and the crash output signal.

The airbag system components must be configured in accordance with the vehicle equipment criteria.



All the inputs and outputs of the airbag computer (ignition modules and sensors) are configurable independently of one another. Any incorrect configuration is detected by the recording of the fault and the illumination of the Airbag fault warning light: – "Open circuit" fault if an ignition module (or sensor) is configured, but the component is not

connected, "configuration" faults if an ignition module (or sensor) is configured and the component is connected. If necessary, a command can be issued to return to the default configuration (configuration of the computer as delivered)

IMPACT FUALT FINDING

Chronological order of checks:

- Front impact:

• (Gd) - (Ng) = (Gg) - (Nd) • (Nd) - (Hg) = (Ng) - (Hd) - Rear impact:

• (Gd) - (Bg) = (Gg) - (Bd) • (Bd) - (Jg) = (Bg) - (Jd)

Detailed View of the Inspection Points

Points Ad, Ag Points Bd, Bg Rear axle guide


IMPACT FUALT FINDING

Detailed View of the Inspection Points Points Gd, Gg Front side member Points Hg, Hd Radiator cross member rear guide mounting on front side member

Points Jd, Jg Rear side member rear leader pin

STEERING

Originating with Laguna GT, the 4 control - 4 wheel steering chassis is available on the top engines of the series or as an option. Driving pleasure is exceptional with unparalleled handling and optimized stability.


STEERING

Removing the actuator To avoid all risk of damage to the systems, apply the safety and cleanliness instructions and operation recommendations before carrying out any repair. Position the vehicle on a two-post lift Release the parking brake. Fit the pedal press on the brake pedal to limit the amount of brake fluid running out. Remove: - the rear wheels - the exhaust silencer - the bolts (1) of the rear axle guards, - the clips (2) of the rear axle guards, - the rear axle guards.

Unclip the headlight beam adjustment sensor linkage.


STEERING

Place a component jack under the lower cup of the left-hand spring. Remove the rear suspension springs. Remove the bolts (3) from the support of the control unit of the automatic parking brake.

Remove: - the silencer heat shield clips (4) , - the bolt (5) from the silencer heat shield, - the silencer heat shield (6) .

Remove: - The nuts (7) from the left under body protectors, remove the left under body protectors.

Fit a component jack under the fuel tank. Remove the bolt from the fuel tank filler neck. Loosen the bolts (9) of the fuel tank to access the wiring of the four wheel steering actuator.


STEERING

Mark the tracks of the wiring of the four wheel steering actuator. Disconnect the connectors (10). Remove the nut (11) from the earth strap. The earth strap nut is specific. Do not swap it with other nuts. Unclip the wiring strap (12). Unclip the wiring at (13).

Mark the tracks of the parking brake cables. Unhook the parking brake cables from the callipers at (14). To avoid damaging the parking brake cable protectors and causing premature wear of the system, do not handle the cables with a tool.

If the actuator is dropped or if there is a trace of impact on its body or on one of its components (sensor, ball joint, connectors), the actuator should be replaced.

Mark: - The routing of the four-wheel drive actuator wiring,- the position of the four-wheel drive

actuator linkage, on the compensator side, - the position, head down, of the four-wheel drive actuator bolts. Remove the ball joint protector (11). Mark the location of the bolts (12) on the four-wheel drive actuator.


STEERING

The wiring and the actuator gaiter are areas which should not be touched. Handle the actuator by its casing. Check the condition of the rubber bush between the rear axle and the four wheel drive actuator. If the rubber bush in the forged wrench is damaged, replace the rubber bush. Refit the actuator and the other parts. Always replace: the four wheel drive actuator nut, the track rod nuts and the compensator bolts.

TOWING AND LIFTING See the current towing regulations in each country.

Never use the drive shafts, axle assembly components or suspension components as attachment points.

Always fully tighten and lock the towing ring before use.

Always pull in the direction of the rod's length in order to avoid breaking it.

Vehicles fitted with automatic transmission:

The vehicle should preferably be transported on a platform or towed by lifting the front wheels. As an exception, the vehicle may be towed with the wheels on the ground but at a speed below 12 mph (20km/h) and over a maximum distance of 18 miles (30 km) (with the gear lever in neutral).

Vehicles fitted with Renault Card:

If the vehicle battery is flat, the steering column remains locked. In this case, fit a new battery or connect to an electrical source to lock the airbag computer using the Diagnostic tool (see Airbag and pretensioners: Precautions for the repair) (MR 411, 88C, Airbag and pretensioners), which unlocks the steering column.

If it is not possible to lock the airbag computer, the front of the vehicle must be lifted.

To access the front attachment point, the front bumper trim (1) must be removed. In order to do this, release at area (2) with pull tag and slide out in direction (3).


TOWING AND LIFTING

Fully screw in the towing ring supplied in the on-board vehicle tool kit located in the luggage compartment inside the emergency spare wheel.

LIFTING

To prevent any accidents, the trolley jack must only be used to lift and/or move the vehicle. The vehicle height must be maintained with axle stands which are strong enough to support the weight of the vehicle. To avoid any damage to the original protection, use equipment fitted with rubber pads to prevent the equipment coming into direct contact with the vehicle. To avoid any damage to the axle assemblies, the vehicle must not be raised using the front suspension arms for support or under the rear axle. To place the vehicle on axle stands: Front:

Raise the vehicle under the front side cross member at (4) and place the axle stand under the jacking point at (5).

Rear: Raise the vehicle under the rear axle mechanism bearing at (6) and place the axle stand under the jacking point at (7).

Fitting the safety strap(s): For safety reasons, the safety strap(s) must always be in perfect condition; replace them if they show signs of wear. When fitting the safety strap(s), check that the seats and fragile parts of the vehicle are correctly protected.


LIFTING

a - Tilting towards the front Place the safety strap(s) under the rear right-hand arm of the lift. Pass the safety strap(s) through the vehicle interior. Pass the safety strap(s) under the rear left-hand arm of the lift. Pass the safety strap(s) through the vehicle interior again. Tighten the strap.

b - Tilting towards the rear

Place the safety strap(s) under the front right-hand arm of the lift. Pass the safety strap(s) through the vehicle interior. Pass the safety strap(s) under the front left-hand arm of the lift. Pass the safety strap(s) through the vehicle interior again. Tighten the safety strap(s).


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