New Switches
Two new switches control the Active or Manual Regeneration:
Ref: MAN DPF Regeneration Guide
Issue Date: May 2014
Subject to modifications in the course of progress.
New switches
3
2
Manual (Active) Regeneration
3
Manual Deactivation
2
To start active regeneration (see phase 4) press and hold
switch for 3 seconds or more.
To stop or disable any regeneration process
(from phase 2 onwards).
Note: when illuminated the system is switched off!
Long-haul Applications
Experience has shown that the active regeneration process
is unlikely to be required, as the passive regeneration
automatically keeps the DPF clean.
Distribution Applications
For 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.
Full details of how to regenerate can be found in the operator’s manual.
MAN Truck & Bus UK Ltd.,
Frankland Road, Blagrove,
Swindon. Wiltshire SN5 8YU
www.mantruckandbus.co.uk
DPF Regeneration Guide
Introduction
6 Phases of Diesel Particulate Filter Regeneration
MAN 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.
Phase
Process
Driver Information
Comments
Driver Action
1
Passive regeneration
while driving
None
Automatic
None
2
Active regeneration through
increase in exhaust gas
temperature while driving
Check lamp illuminated during
regeneration process indicating an
increase in exhaust gas temperature
Automatic – continue driving
and lamp will go out
3
Warning level 1
Driver informed
about necessity of
active regeneration
while driving
Driver to confirm message by
pressing ‘OK’ on Trip computer
to move to next stage.
4
Warning level 2
Driver 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.
5
Warning level 3
DPF replacement
required by service workshop
Driver to confirm message by
pressing ‘OK’ on Trip computer
to move to next stage.
6
If regeneration warnings have
been ignored, activation of
engine protection function
maximum speed 20kph
performance reduction to
avoid damage
Additional warning lamps
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 1 is on or flashing - A malfunction
has been detected, please go to workshop.
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.
1
Check lamp
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.
Manual
start via switch
2
Go to workshop
Check lamp
Go to workshop
This check lamp my be illuminated during
other regeneration processes phase 3 - 5
Full details of how to regenerate can be found in the operator’s manual.