Mercedes-Benz 2012 B Class - Manual (Page 220)

Display messages Possible causes/consequences and M Solutions
DISTRONIC PLUS
Inoperative
DISTRONIC PLUS is defective. Adaptive Brake Assist may also
have failed.
A warning tone also sounds.
X Visit a qualified specialist workshop.
DISTRONIC PLUS
Passive
You have depressed the accelerator pedal. DISTRONIC PLUS is no
longer controlling the speed of the vehicle.
X Remove your foot from the accelerator pedal.
DISTRONIC PLUS
--- mph An activation condition for DISTRONIC PLUS is not fulfilled.
X Check the activation conditions for DISTRONIC PLUS
(
Y page 161).
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 158).
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Display messages
On-board computer and displays