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Presentation of Industrial Trainning

Tabel of Contents Introduction Production Car nomenclature Models Innovation Body Style Body Designation Identification of Chassis Number Engine Designation MaintanceInspection point of engine compartment Inspection point of transmission EGR Automatic TransmissionTurbochargerSterring System

Introduction Karl Benz co-founder First Motor car in 1886 3 wheels and single cylinder 4 stroke.

Gottlieb, Wilhelm & Daimler develop first world four wheel motor car 1886.

Gottlieb Daimler started Daimler motor company in 1890. Agent Emil Jellinek, of Daimler motor co. ordered 36 special designed

cars under the name of his daughter Mercedes.

First Mercedes was designed by Maybach, chief engineer at Daimler motor co.

Three Point star in the logo stands for Land, Sea & Air as the Daimler engineers.

Maybach left Daimler in 1907 & setup a company Maybach motors.

Benz and Daimler mixed in 1926 and made as Daimler Benz AG.

Production• Factories in IndiaIndia, Bangalore(R&D)India(Pune)India, Chennai (Daimler India Commercial Vehicles Pvt.

Ltd.)- Trucks & Engine Manufacturing unit

Car Nomenclature• C stands for Compact class • S stands for luxury class

• E stands for Executive class• M stands for luxuries SUV• G stands for SUV off roads • “4MATIC” indicates the vehicle is equipped with all-

wheel-drive.• “Blue TEC” indicates a desiel engine with selective

catalytic reduction exhaust aftertreatment.• “Blue EFFICIENCY” indicates special fuel economy

feature (direct injection, start-stop system, aerodynamic modification, etc.)

• “CGI” (Charged Gasoline Injection) indicates direct gasoline injection.

• “CDI” (Common-rail Direct Injection) indicates a common-rail diesel engine.

• “Kompressor” indicates a supercharged engine.

Models A-Class-Hatchback B-Class-Multi Purpose vehicle(MPV) C-Class-Saloon, Estate &Coupe CL-Class-Luxury coupe CLA-Class-4 Door coupe CLS-Class-4 Door Coupe and Estate E-Class-Saloon, Estate, Coupe and Carbriolet G-Class-Sports Utility Vehicle (SUV) GL-Class-Sports Utility Vehicle (SUV) GLA-Class-Sports Utility Vehicle (SUV) GLB-Class-Sports Utility Vehicle (SUV) GLK-Class-Sports Utility Vehicle (SUV) M-Class-Sports Utility Vehicle (SUV) R-Class-Multi Purpose Vehicle (MPV) S-Class-Luxury Sedan SL-Class-Roadster SLK-Class-Roadster

Innovations The internal combustion engine automobile was developed independently by

Benz and Daimler & Maybach in 1886 Daimler invented the honeycomb radiator of the type still used on all water –

cooled vehicles today. Daimler invented the float carburetor which was used until replaced by fuel

injection. The first passenger road car to have brakes on all four wheels (1924) In 1936, the Mercedes –Benz 260 D was the first diesel powered passenger

car. Mercedes –Benz were the first to offer direct fuel injection on the Mercedes –

Benz 300SL Gullwing

• In September 2003, Mercedes –Benz introduced the world’s first seven-speed automatic transmission called ‘7G-Tronic’

• Airbags were first introduced in the European market, beginning with model year 1981 s-class

Body Style

Saloon/Sedan Esteem, City, Ikon, SX4, Verna, Camry etc. Station Wagon/Estate Tata Estate Roadster Coupe Maruti Zen Hatchback/notchback Palio, Indica, Zen Cabriolet Sand storm (san motors) Tall Boy Santro Van Omni MUV Tavera, Innova SUV Tata Safari Pick up Vehicle Tata mobile Bus/Trucks Tata, Ashok Leyland, AMW

SR. NO. MODEL

DESIGNATION SALES

DESIGNATION ENGINE CODE

TYPE

1 V221 S300 L M212 V

2 463 G55 AMG M113 V

3 463 G350 Bluetech OM643 V

4 172 SLK350 M276 V

5 230 SL63 AMG M156 V

6 W204 C 63 AMG M156 V

7 218 CLS350 M276 V

8 251 R350 4Matic M272 V

9 164 ML350 CDI OM642 V

10 X164 GL350 CDI OM642 V

Model designation

MODEL

DESIGATION SR. NO. SALES

DESIGNATION ENGINE

CODE TYPE

W204 C Class 1 C200 CGI M271 I

2 C250 M272 V

3 C220 CDI OM651 I

4 C250 CDI OM651 I

W212 E Class 1 E250 M272 V

2 E350 M272 V

3 E200 CGI M271 I

4 E350 CGI M276 V

5 E250 CDI OM651 I

6 E350 CDI OM642 V

V221 S Class 1 S350 L M272 V

2 S350 L CGI M276 V

3 S500 L CGI M278 V

4 S500 L M273 V

5 S350 CDI OM642 V

SL. NO. NOMENCLATURE MODEL CODE

1 A-class 168,169,176

2 B-class 242,245,246

3 C-class 201,202,203,204,205

4 CLA-class 117

5 CLK-class 208,209

6 CLS-class 218,219

7 CL-class 140,215,216

8 E-class 207,210,211,212

9 G-class 460,461,463

10 GL-class 166,164,

11 GLC-class 253

12 GLK-class 204

13 GLA-class 156

14 GLE-class 292

15 M-class 163,164,166

16 S-class 126,140,217,220,221,222

17 SLK-class 170,171,172

18 SL-class 107,129,230,231

19 SLS-class 197

20 R-class 251

Engine Designation & Engine Identification Number

112 910 3 0 000100

112 Engine Designation Number

910 Engine Version Number

3 Code of Manufacturing Plant

If

2 Mannhiem (Truck Engine) 3 Stuttgart (Engine 112/113/166/611/688) 4 Berlin (Smart Engine)

0 Million Overflow unit

000100 Engine Serial Number

Note:- If Engine Designation Number starts with 1 or 2 then it is a Petrol engine and if starts with 6 then it is a diesel engine.

MaintainceBasic ServiceEngine oil (check by deep stick) (according to engine

quantity)Brake fluid(1ltr)Windshield washer levelWater DrainsOil Filter (replace every year)Air Filter (replace as required)Fuel Filter (replace in service B for Diesel vehicles)AC dust filter (replace as required)Antifreez coolant gravity ( change at 1,50,000 kms)Check wiper operation and cleaning

Spark plug (replace in every 4 year)Headlamp rangeClean sliding roof guide railsTire condition/tire tread depthAdjust tyre pressure Check battery condition with Midtronic Power sterring oil levelBrake disc thickness (vernier calliper)Brake pad thickness Brake wear sensor for any damageQuick testReset service indicatorNote:- every service perform after 15,000 kms or 1 year

Inspection points engine compartmentEngine mountingsStarter operation, for any abnormal noiseCheck for any abnormal noise All fuel line routing/damageWiring harness routing /damagesDrive pulley movementCheck poly V belt for damages and wear

Inspection points transmissionTransmission fluid (replace at every 60,000 kms)Transmission mounting Transmission oil leaks

EGRIt is a Nitrogen oxide emission reduction technique .

It recirculates a part of exhaust gas to the intake manifold.

Location of EGR

EGR valve

It is located between inlet and exhaust manifold.

It provides passage for exhaust gases from exhaust to inlet manifold

Cylinder head

Intake manifold

Components of EGR

EGR in 651 engineEGR valve

EGR cooler

Intake manifold

Turbocharger

Exhaust manifold

Per-cooler

Automatic Transmission• It is a medium which Transmits the Engine Power to the

Wheels

The transmission is located between engine and propeller shaft

Automatic Manual

Comparison between Automatic & Manual Transmission

Gears shifts Automatically Gears are shifted Manually

Torque converter is present

Clutch is present

Uninterrupted power flow

Interrupted power flow

A turbocharger is an exhaust driven turbine.

It compresses the air and sent it to engine.

Which boost the engine’s power.

History The technique of sending forced air into

combustion chamber in an I.C engine was invented by Gottlieb Daimler in 1885.

The turbocharger was invented in 1905 by Swiss engineer “Alfred Buchi”.

Revolution with mercedes benz cars

The world's first diesel automobile with turbocharger was Mercedes 300SD introduced in 1978.

Necessity of turbo charger

Uses waste energy of exhaust gases for driving the turbine.

Produces more power with same engine capacity.

Reduces fuel consumption as more amount of air is forced in.

Volumetric efficiency It is the ratio of volume of air intake to

total cylinder volume.

Volumetric efficiency =__________________ Volume of air intakeTotal cylinder volume

x 100%

Volume of air intake=300 ccTotal volume of cylinder=400 cc

Volumetric efficiency= _____ = 75%

400

300

Real Image of 2-Stage turbocharger in om651

INTRODUCTION TO STEERING SYSTEM

The steering system is the collection of component and linkages.

It allows a vehicle to follow certain path desired by the driver through the steering wheel.

COMPONENTS OF STEERING SYSTEM

Steering wheel

Steering shaft

Steering gear box

Tie rod

Tie rod ends

ELECTRICAL POWER STEERING SYSTEM

It is electrically operated.

Electric motor is used for the steering assistance.

Control Unit takes the several values i.e. vehicle speed and command the motor to switched on.

For motor, Current is drawn from the charging system.