Mercedes-Benz S-Class Maybach Owner's Manual page 486

W W ar arning/indicat ning/indicator lamp or lamp
;
Engine diagnosis warning
lamp
p
Engine operating tempera-
ture warning lamp
#
Electrical fault warning lamp
8
Fuel reserve warning lamp
lights up
Possible causes/conseq P ossible causes/consequences and uences and
* The yellow engine diagnostics warning lamp is lit while the engine is running.
A malfunction has occurred in the engine, the exhaust system or the fuel system.
The emissions limit value may have been exceeded and the engine may be running in emergency operation mode.
Have the vehicle checked as soon as possible at a quali ed specialist workshop.
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*V V ehicles wit ehicles with a pe h a petr trol engine: ol engine: a er a cold start, the blue engine operating temperature warning lamp is on.
Engine output and engine torque are reduced.
Take this into consideration in your driving style.
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* The red electrical fault warning lamp is lit.
There is a fault in the electrics.
Note the messages on the driver's display.
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* The yellow fuel reserve warning lamp lights up while the engine is running.
The fuel supply has dropped into the reserve range.
Refuel.
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M M Solutions Solutions
Display messages and warning/indicator lamps 483
483