Mercedes-Benz C-Coupe 2013 Owners Manual - Manual (Page 229)

Display messages Possible causes/consequences and M Solutions
Cruise Control
Inoperative
Cruise control is defective.
A warning tone also sounds.
X
Visit a qualified specialist workshop.
Cruise Control
--- mph A condition for activating cruise control has not been fulfilled.
You have tried to store a speed below 20 mph (30 km/h), for
example.
X
If conditions permit, drive faster than 20 mph (30 km/h) and
store the speed.
X Check the activation conditions for cruise control
(
Y
page 157).
Display messages
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