Hints, Practical hints, What to do if – Mercedes-Benz M-Class 2010 Owners Manual User Manual
Page 305
Vehicle
Problem
Possible causes/consequences and M Solutions
The yellow fuel tank
reserve warning lamp in
the fuel gauge comes
on while driving.
The fuel level has gone below the reserve mark.
X
Refuel at the next gas station.
Engine
Problem
Possible causes/consequences and M Solutions
! (USA only)
; (Canada only)
The yellow engine
malfunction indicator
lamp comes on when
the engine is running.
There may be a malfunction in
R
the fuel management system
R
the ignition system
R
the emission control system
R
systems which affect emissions
Such malfunctions may result in excessive emissions values and
may switch the engine to limp-home (emergency operation) mode.
X
Have the vehicle checked as soon as possible at an authorized
Mercedes-Benz Center.
i
Some states may by law require you to visit a workshop as
soon as the engine malfunction indicator lamp comes on. Check
local requirements.
! (USA only)
; (Canada only)
The yellow engine
malfunction indicator
lamp comes on when
the engine is running.
A loss of pressure has been detected in the fuel system. The fuel
cap may not be closed properly or the fuel system may be leaky.
X
X
If it is not closed properly: Close the fuel cap.
X
If it is closed properly: Have the fuel system checked by an
authorized Mercedes-Benz Center.
Diesel engine: Your fuel tank was driven empty.
X
After refueling, start, turn off and restart the engine three or four
times in succession.
The limp-home mode is canceled. You do not need to have your
vehicle checked.
What to do if …
303
Practical hints
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