Mercedes-Benz C-Class Coupe 2023 Operator's Manual page 458

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456
456 Display messages and warning/indicator lamps
W W ar arning/indicat
ning/indicator lamp
or lamp
P
Possible causes/conseq
ossible causes/consequences and
#
;
* The yellow Check Engine warning lamp is lit while the engine is running.
A malfunction has occurred in the engine, the exhaust system or the fuel system.
The emission limit values may be exceeded and the engine may be in emergency mode.
Engine diagnosis warning
In some states, legal requirements stipulate that you must immediately consult a quali ed specialist workshop as soon
lamp
as the yellow Check Engine warning lamp lights up.
#
#
* The red electrical malfunction warning lamp is lit.
There is a malfunction in the electrics.
#
Electrical malfunction warn-
ing lamp
8
* The yellow fuel reserve warning lamp lights up while you are driving.
or or
The yellow fuel reserve warning lamp lights up while the engine is running.
Fuel reserve warning lamp
The y
The yello
There has been pressure loss in the fuel system. The fuel ller cap is not closed correctly or the fuel system is leaking.
#
uences and
M M
Solutions
Solutions
Avoiding high loads on the engine, drive to the nearest quali ed specialist workshop. In doing so, ensure that the
coolant temperature display remains below the red area.
Have the vehicle checked as soon as possible at a quali ed specialist workshop.
Note the messages on the instrument display.
ellow fuel r
w fuel reserv
eserve w
e war arning lam
ning lamp lights up while y
p lights up while you ar
Close the fuel ller cap.
ou are dr
e driving:
iving:

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