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Problem Possible causes/consequences and M Solutions
! (USA only)
; (Canada only)
The yellow engine
diagnostics warning
lamp lights up while the
engine is running.
There may be a malfunction, for example:
R
in the engine management
R
in the fuel injection system
R
in the exhaust system
R
in the ignition system (for vehicles with gasoline engines)
The emission limit values may have been exceeded and the engine
may be breaking in emergency mode.
X
Have the vehicle checked as soon as possible at a qualified
specialist workshop.
i
In some states, you are required to visit a qualified specialist
workshop as soon as the yellow engine diagnostics warning
lamp lights up due to the relevant applicable legislation. If
necessary, check whether this is the case in the state you are
in.
! (USA only)
; (Canada only)
The yellow engine
diagnostics warning
lamp lights up while the
engine is running.
The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
X
Check that the fuel filler cap is correctly closed.
X
If the fuel filler cap is not correctly closed: close the fuel filler
cap.
X
If the fuel filler cap is closed: visit a qualified specialist
workshop.
Vehicles with a diesel engine: the fuel tank has been run
completely dry and the engine will not start. There is air in the fuel
system (Y page 162).
The yellow reserve fuel
warning lamp lights up
while the engine is
running.
The fuel level has fallen below the reserve range.
The fuel tank must be filled at least to the reserve fuel level to
prevent impairment to the running of the engine.
X
Refuel at the nearest gas station.
Warning and indicator lamps in the instrument cluster
259
On-board computer and displays
BA 164.8 USA, CA Edition B 2011; 1; 2, en-US
d2sboike Version: 3.0.3.5
2010-04-21T15:08:44+02:00 - Seite 259
Z