Mercedes-Benz C-Class 2014 Owner's Manual page 368

Warning and indicator lamps in the instrument cluster
Vehicle
Warning/
N N Signal type
indicator
Possible causes/consequences and M M Solutions
lamp
Ð N The red power steering warning lamp is lit while the engine is running.
The power steering assistance is faulty.
A warning tone also sounds.
G WARNING
You will need to use more force to steer.
There is a risk of an accident.
Check whether you are able to apply the extra force required.
X
If you are able to steer safely: carefully drive on to a qualified specialist
X
workshop.
If you are unable to steer safely: do not drive on. Contact the nearest
X
qualified specialist workshop.
365
Z