For petrol engines
1. Drive at a speed of at least 80 km/h
(50 mph).
2.
To allow the vehicle to coast while
a gear is engaged, take your foot o the
accelerator completely for a few sec-
onds.
3. Repeat this process of acceleration and
coasting until the indicator lamp goes
out.
4. If the indicator lamp does not go out af-
ter some time, go immediately to a suit-
ably qualified workshop.
For diesel engines
1. Drive at a speed of at least 60 km/h (37
mph) with an engine speed of a
t least
2,000 rpm.
The achieved temperature increase can
burn the soot o the filter.
2. End the regeneration drive only when
the indicator lamp goes out.
3. Go to a suitably qualified workshop if
the indicator lamp continues to light up
aer driving for approximately 40 mi-
nutes.
Particulate l
ter clogged
The indicator lamps light up yellow togeth-
er.
Self-regeneration of the particulate filter is
no longer possible.
1. Contact a suitably qualified workshop
immediately to have a service regenera-
tion carried out.
The particulate filter will become damaged
and will have to be replaced by a suitably
qualified workshop if the indicator lamps
are ignored.
Emissions-relevant fault
The indicator lamp lights up yellow.
F
ault in an emissions-relevant component
that can damage the vehicle.
1. Go to a suitably qualified workshop and
have the engine and exhaust system
checked.
Misring
The indicator lamp fla
shes yellow.
Misfiring is occurring that can damage the
vehicle.
1. Go to a suitably qualified workshop and
have the engine and exhaust system
checked.
WARNING
Sudden braking or driving manoeuvres,
e.g. when an indic
ator lamp lights up or
due to irregular engine running, can lead
to accidents. This can result in severe or
fatal injuries.
·
Ensure that your speed and driving style
are always appropriate for the current
visibility, weather and road/trac con-
ditions.
·
Always observe the applicable country-
specific trac regulations.
NOTICE
There may be engine faults and fuel con-
sumption ma
y be higher if the indicator
lamps are lit up or flashing.
Emission control 305
2KF012720AE