Mercedes-Benz S-Class 2009 Owner's Manual page 356

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Display messages
Cruise
control
and SPEED‐
TRONIC
Blind
Spot
Assist
Blind
Spot
Assist
Cruise
control
* optional
Possible causes/consequences and X X Solutions
inopera‐ Speedtronic and cruise control are faulty. A warning tone also
tive sounds.
Visit a qualified specialist workshop.
X
inopera‐
Blind Spot Assist* is faulty.
tive
Visit a qualified specialist workshop.
X
currently
Blind Spot Assist* is temporarily inoperative if:
unavaila‐
you have established the electrical connection between a
R
ble See
trailer and your vehicle.
Owner's
the sensors in the bumpers are dirty.
R
Manual
its function is impaired due to heavy rain or snow.
R
the radar sensor system is outside the operating tempera-
R
ture range.
the radar sensor system has switched off automatically, for
R
example in the vicinity of a radio telescope facility.
When towing a trailer, confirm the display message with
X
a.
When driving without a trailer:
Blind Spot Assist* is operational again and the display mes-
sage disappears when:
the dirt (e.g. slush) drops away while you are driving.
R
the system detects that the sensors are fully available
R
again.
the radar sensor system is back within the operating tem-
R
perature range.
If the display message continues to be shown:
Clean the bumpers (
X
Restart the engine.
X
A condition for activating cruise control has not been met.
- - - km/h
Activate ESP
X
If conditions permit, drive faster than 30 km/h and store
X
the speed (
The system has overheated.
Wait until the system has cooled down.
X
Version: 2.11.7.7
Display messages
page 335).
Y
®
( page 56)
Y
page 244).
Y
353
Z