Operation Manual

122 Driving and operating
Engine exhaust
9 Danger
Engine exhaust gases contain
poisonous carbon monoxide,
which is colourless and odourless
and could be fatal if inhaled.
If exhaust gases enter the interior
of the vehicle, open the windows.
Have the cause of the fault
rectified by a workshop.
Avoid driving with an open load
compartment, otherwise exhaust
gases could enter the vehicle.
Malfunction indicator light 3 81.
Diesel particle filter
The diesel particle filter system filters
harmful soot particles out of the
exhaust gases. The system includes
a self-cleaning function that runs
automatically during driving without
any notification.
The filter is cleaned by periodically
burning off the soot particles at high
temperature. This process takes
place automatically under set driving
conditions and may take up to
15 minutes. Fuel consumption may
be higher during this period. The
emission of smells and smoke during
this process is normal.
Under certain driving conditions, e.g.
short distances, the system cannot
clean itself automatically.
If cleaning of the filter is required and
previous driving conditions did not
enable automatic cleaning, it will be
indicated by control indicator %
3 85.
% illuminates when diesel particle
filter is full. Start cleaning process as
soon as possible.
% flashes when diesel particle filter
has reached the maximum filling
level. Start cleaning process
immediately to avoid damage to the
engine.
Cleaning process
To activate the cleaning process,
continue driving and as soon as the
road and traffic situation permits it,
increase speed to more than
50 km/h. Keep engine speed above
2000 revolutions per minute. Shift
down if necessary. Diesel particle
filter cleaning is then started. Do not
turn the ignition off during cleaning.
If control indicator Z illuminates
additionally in the instrument cluster
when the engine is running, there