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Practical hints
What to do if …
Problem Possible cause Suggested solution
? The yellow "CHECK ENGINE"
malfunction indicator lamp
comes on while driving.
There is a malfunction in:
ț The fuel injection system
ț The ignition system
ț The exhaust system
ț The fuel system
Such malfunctions may result in excessive
emissions values and may switch the engine
to its limp-home (emergency operation)
mode.
̈ Have the vehicle checked as soon as
possible by an authorized
Mercedes-Benz Center.
An on-board diagnostic connector is
used by the service station to link the
vehicle to the shop diagnostics sys-
tem. It allows the accurate identifica-
tion of system malfunctions through
the readout of diagnostic trouble
codes. It is located in the front left
area of the footwell next to the park-
ing brake.
Your gas tank is empty. ̈ After refuelling, start the engine three
or four times in succession.
The limp-home mode is canceled. You do
not need to have your vehicle checked.
< The red seat belt warning lamp
blinks for a brief period after
starting the engine.
The warning lamp reminds you to fasten seat
belts.
̈ Fasten your seat belt.
W The yellow fuel tank reserve
warning lamp lights up while
driving.
The fuel level has gone below the reserve
mark.
Gas cap not closed tight.
̈ Refuel at the next gas station
(
୴ page 259).
̈ Close gas cap