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Practical hints
What to do if …
Problem Possible cause/consequence Suggested solution
ú (USA only)
± (Canada only)
The yellow engine malfunction
indicator lamp comes on while
driving.
Your fuel tank is empty. ̈ After refuelling start, turn off and re-
start the engine three or four times in
succession.
The limp-home mode is canceled. You do
not need to have your vehicle checked.
Diesel engine: The fuel tank is empty. The en-
gine is running in emergency operation
mode.
̈ Bleed the fuel system (୴ page 449).
The limp-home mode is canceled. You do
not need to have your vehicle checked.
Diesel engine: The diesel engine electronics
are malfunctioning.
Full engine performance is not available.
̈ Have the fuel system checked by an au-
thorized Mercedes-Benz Center.