DPF Regeneration Guide

Ref: MAN DPF Regeneration GuideIssue Date: May 2014Subject to modifications in the course of progress.

MAN Truck & Bus UK Ltd.,Frankland Road, Blagrove, Swindon. Wiltshire SN5 8YUwww.mantruckandbus.co.uk

New SwitchesTwo new switches control the Active or Manual Regeneration:

Manual (Active) RegenerationTo start active regeneration (see phase 4) press and hold switch for 3 seconds or more.

Manual DeactivationTo stop or disable any regeneration process (from phase 2 onwards).Note: when illuminated the system is switched off!

Long-haul ApplicationsExperience has shown that the active regeneration process is unlikely to be required, as the passive regeneration automatically keeps the DPF clean.

Distribution ApplicationsFor stop - start distribution applications there is more of a requirement for the active regeneration process (manual operation)due to lack of temperature in the exhaust.

New switches

3 2

2

3

Full details of how to regenerate can be found in the operator’s manual.

IntroductionMAN Euro 6 Trucks are equipped with a Diesel Particulate Filter in the exhaust system, which may require some self-cleaning or regeneration during the normal operation of the vehicle.

Regeneration will occur automatically (passive) or by manual (active) intervention.

If any regeneration is necessary the vehicle’s On Board Diagnostic (OBD) system will inform the driver via a number of new warning lamps on the dashboard.

6 Phases of Diesel Particulate Filter RegenerationPhase Process Driver Information Comments Driver Action

1 Passive regeneration while driving None Automatic None

2Active regeneration through

increase in exhaust gas temperature while driving

Check lampCheck lamp illuminated during

regeneration process indicating an increase in exhaust gas temperature

Automatic – continue driving and lamp will go out

3

Warning level 1Driver informed

about necessity of active regeneration

while driving

Driver to confirm message by pressing ‘OK’ on Trip computer

to move to next stage.

By means of adapted operation. If on a Stop-Start cycle the vehicle must be driven at a

continuous speed of more than 50 km/h (30 mph) for up to 60 mins.

Alternatively a static regeneration can be completed as per phase 4.

4

Warning level 2Driver informed about necessity of stationary

regeneration with increased engine idling speed

Driver to confirm message by pressing ‘OK’ on Trip computer

to move to next stage.

Manual start via switch

5Warning level 3DPF replacement

required by service workshop

Driver to confirm message by pressing ‘OK’ on Trip computer

to move to next stage.Go to workshop

6

If regeneration warnings have been ignored, activation of engine protection function

maximum speed 20kph performance reduction to

avoid damage

Check lamp

Go to workshop

2

Additional warning lamps

1

The OBD system has a built in self check to ensure that the Euro 6 emission control is functioning.

Once the engine is started and running:If OBD Check lamp is on or flashing - A malfunction has been detected, please go to workshop.

This check lamp my be illuminated during other regeneration processes phase 3 - 5

1

This Check lamp may be illuminated whilst driving. It is part of the automatic regeneration process and it is safe to continue driving.The lamp will go out after a short time. Full details of how to regenerate can be found in the operator’s manual.