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In order to clean the diesel particulate 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
(automatic gearbox: position S) when the traffic situation permits it. This increa-
ses the exhaust temperature and the soot particles deposited in the diesel parti-
cle filter are burnt.
Whereby the applicable speed limits must always be observed
The warning light
goes out after the successful cleaning of the diesel particle
filter.
If the filter is not properly cleaned, the warning light
warning light
begins to flash. The following is displayed in the information dis-
play: Diesel-particle filter: Owner's manual! Diesel particle filter appears. After-
wards 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
comes on.
Visit a specialist garage immediately.
Further information
» page
213, Vehicle identification data.
WARNING
The diesel particle filter achieves very high temperatures. Therefore do not
■
park in areas where the hot filter can come into direct contact with dry grass
or other combustible materials - risk of fire!
Always adjust your speed to suit weather, road, region and traffic condi-
■
tions. The recommendations indicated by the warning light must not tempt
you to disregard the national regulations for road traffic.
CAUTION
As long as the warning light
lights up, one must take into account an in-
creased fuel consumption and in certain circumstances a power reduction of the
engine.
Note
To assist the combustion process of the soot particles, we recommend that reg-
■
ularly driving over short distances should be avoided.
Using diesel fuel with an increased sulphur content can considerably reduce the
■
life of the diesel particle filter. A specialist garage will be able to tell you which
countries use only diesel fuel with high sulphur content.
24
Using the system
»
.
does not go out and the
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 ig-
nition is switched on.
The following text will be displayed in the information display:
Error: Airbag
The functionality of the airbag system is monitored electronically even if one of
the airbags is switched off.
If a front, side or head airbag or belt tensioner has been switched off using the
vehicle system tester:
›
The warning light
lights up for around 4 seconds after switching on the igni-
tion and then flashes approximately another 12 seconds in 2 second intervals.
The following text will be displayed in the information display:
Airbag/belt tensioner deactivated
The following applies if the airbag has been switched off using the key switch
in the storage compartment:
›
The warning light
comes on for 4 seconds after the ignition has been switch-
ed on.
›
Activation of the airbag is indicated by the illumination of the indicator light in
display
in the middle of the dash panel
WARNING
If there is a fault, have the airbag system checked immediately by a specialist
garage. Otherwise, there is a risk of the airbag not being activated in the
event of an accident.
Exhaust inspection system
The warning light
comes on after the ignition has been switched on.
» page
149.
£
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