Mercedes-Benz S-Class Owner's Manual page 606

604 Display messages and warning/indicator lamps
Driving systems
Warning/indicator lamp
Possible causes/consequences and
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The yellow AIRMATIC/Active Body Control warning lamp is on.
There is a fault in the AIRMATIC/Active Body Control system.
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Suspension warning lamp
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The red distance warning lamp lights up while the vehicle is in motion.
The distance to the vehicle in front is too small for the speed selected.
If there is an additional warning tone, you are approaching an obstacle at too high a speed.
Warning lamp for distance
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warning function
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Active Brake Assist .
Engine
Warning/indicator lamp Possible causes/consequences and
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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.
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Observe the messages on the multifunction display.
Be prepared to brake immediately.
Increase the distance.
Have the vehicle checked as soon as possible at a qualified specialist workshop.
M M Solutions
M M Solutions