Operation Manual

Display messages
Possible causes/consequences and M Solutions
DTR+: Steering
Assist. Currently
Unavailable See
Operator's Manual
Steering Assist and Stop&Go Pilot are temporarily inoperative.
Possible causes are:
R
the windshield in the camera's field of vision is dirty.
R
visibility is impaired due to heavy rain, snow or fog.
R
there have been no lane markings for an extended period.
R
the lane markings are worn, dark or covered, e.g. by dirt or snow.
When the causes stated above no longer apply, the display message
disappears.
Steering Assist and Stop&Go Pilot are operative again.
If the display message does not disappear:
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X
Secure the vehicle against rolling away (Y page 146).
X
Clean the windshield.
DTR+: Steering
Assist. Inoperative
Steering Assist and Stop&Go Pilot are faulty.
However, the DISTRONIC PLUS functions are still available.
A warning tone also sounds.
X
Visit a qualified specialist workshop.
Cruise Control Inop‐
erative
Cruise control is malfunctioning.
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 153).
Cruise Control Off
Cruise control has been deactivated.
If a warning tone also sounds, cruise control has deactivated auto-
matically (
Y page 153).
Display messages
229
On-board computer and displays
Z