Particulate lter clogged with
soot
The indicator lamp lights up yellow.
T
he particulate filter is saturated with soot
and requires regeneration.
Prerequisite for regeneration trip: the en-
gine is at operating temperature.
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
Any sudden driving manoeuvres that can-
not be anticipa
ted by other road users
may lead to accidents.
·
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.
292 Fuel and emission control