Problem Possible cause/consequence Suggested solutions
± The yellow engine diag-
nostic indicator lamp
lights up while the en-
gine is running.
The fuel tank has run dry.
The engine may be running in
emergency mode.
E Refuel at the nearest filling station (e page 215).
E For vehicles with a diesel engine: bleed the fuel system
(
e page 316).
E Start the engine three to four times in succession after refuel-
ling. Emergency running mode will be cancelled. The vehicle
does not need to be checked.
± The yellow engine diag-
nostic indicator lamp
lights up while the en-
gine is running.
There is a malfunction:
I
in the fuel injection system
I
in the ignition system
11
I
in the exhaust system.
The emission limit values may
be exceeded and the engine
may be running in emergency
mode.
Engine power output may be re-
duced.
E Have the vehicle checked immediately at a qualified specialist
workshop.
; The yellow air filter indi-
cator lamp
12
lights up
while the engine is run-
ning.
The service limit for the air
cleaner has been reached. The
air cleaner is dirty.
E Have the filter cartridge replaced at a qualified specialist work-
shop.
Practical advice
Troubleshooting
279
ee
5
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