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Instruments and Indicator/Warning Lights
Diesel particle filter*
If the warning light
comes on, this means that soot has accumulated in the
diesel particle filter because of the frequent short distances.
In order to clean the diesel particle filter, the vehicle should be driven at an even
speed of at least 60 km/h at engine speeds of 1 800 - 2 500 rpm for at least 15
minutes or until the warning light goes out with the 4th or 5th gear engaged (auto-
matic gearbox: position S) when the traffic situation permits it. This increases the
exhaust temperature and the soot deposited in the diesel particle filter is burnt.
Always pay attention to the valid speed limits ⇒
The warning light
goes out after the successful cleaning of the diesel particle
filter.
If the filter is not properly cleaned, the warning light
begins to flash. In the information display* appears Diesel-
warning light
particle Owner's manual. Afterwards the engine control unit shifts the engine into
the emergency mode, which only has a reduced power output. After switching the
ignition off and on again the warning light
Have the vehicle inspected without delay by your specialist garage.
WARNING
If you do not pay attention to the warning light coming on and the corre-
sponding descriptions and warning notes, this may result in injuries or
major vehicle damage.
Always adjust your speed to suit weather, road, region and traffic condi-
tions. The route indicated by the warning light must not tempt you to disre-
gard the national regulations for road traffic.
Caution
As long as the warning light
lights up, one must take into account an increased
fuel consumption and in certain circumstances a power reduction of the engine.
(diesel engine)
.
does not go out and the
comes on.
Note
Further information about diesel particle filter ⇒ page 200.
Airbag system
Monitoring the airbag system
The warning light
comes on for a few seconds when the ignition is switched on.
There is a fault in the system if the warning light does not go out or flashes while
driving ⇒
. This also applies if the warning light does not come on when the igni-
tion is switched on.
The following text will be displayed in the information display*:
Airbag fault!
The functionality of the airbag system is also monitored electronically, when one
airbag has been switched off
Front, side and head airbags or belt tensioner which have been switched off
using the vehicle system tester:
The warning light
lights up for 4 seconds after switching on the ignition and
then flashes again for 12 seconds in intervals of 2 seconds.
The following text will be displayed in the information display*:
Airbag/belt tensioner deactivated!
Front passenger airbags switched off using the switch for front passenger
airbags* in storage compartment on the front passenger side:
the warning light
comes on for 4 seconds after the ignition has been
switched on,
switching off the airbag is indicated in the middle of the dash panel by the
lighting up of the indicator light
(airbag switched off) ⇒ page 182.
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