G
WARNING
The Lane Keeping Assist warning does not
return the vehicle to the original lane. There is
a risk of an accident.
Always steer, apply the brakes or accelerate
the vehicle yourself, especially if Lane Keep-
ing Assist alerts you.
If you fail to adapt your driving style, Lane Keep-
ing Assist can neither reduce the risk of an acci-
dent nor override the laws of physics. Lane
Keeping Assist cannot take into account road,
weather or traffic conditions. Lane Keeping
Assist is only an aid. You are responsible for the
distance to the vehicle in front, for vehicle
speed, for braking in good time and for staying in
lane.
Lane Keeping Assist does not keep your vehicle
in its lane.
The system may be impaired or may not function
in the following situations:
R
Poor visibility, e.g. due to insufficient illumi-
nation of the road, or due to snow, rain, fog or
spray
R
Glare, e.g. from oncoming traffic, the sun or
reflection from other vehicles (e.g. if the road
surface is wet)
R
The windscreen is dirty, misted up, damaged
or covered, for instance by a sticker, in the
vicinity of the camera
R
No or several, unclear lane markings are pres-
ent for one lane, e.g. in a construction area
R
The lane markings are worn away, dark or
covered up, e.g. by dirt or snow
R
The distance to the vehicle in front is so small
that the lane markings cannot be detected
R
The lane markings change quickly, e.g. lanes
branch off, cross one another or merge
R
The road is narrow and winding
R
There are highly variable shade conditions on
the roadway
Activating Lane Keeping Assist
X
Activate Lane Keeping Assist using the on-
board computer; to do so, select
StandardStandard or
AdaptiveAdaptive (Y page 209).
If you drive at speeds above 60 km/h and lane
markings are detected, the lane markings in
the assistance graphics display (Y page 208)
are shown in green.
If StandardStandard is selected, no warning vibration
occurs if:
R
You have switched on the turn signal. In this
event, the warnings are suppressed for a cer-
tain period of time.
R
A driving safety system such as ABS, BAS or
ESP
®
engages.
When
AdaptiveAdaptive is selected, no warning vibra-
tion occurs if:
R
You have switched on the turn signal. In this
case, the warnings are suppressed for a cer-
tain period of time
R
A driving safety system such as ABS, BAS or
ESP
®
engages
R
You accelerate hard, e.g. kickdown
R
You brake hard
R
You steer actively, e.g. swerve to avoid an
obstacle or change lane quickly
R
You cut the corner on a sharp bend
To ensure that you are warned only when nec-
essary and in good time if you cross the lane
marking, the system detects certain conditions
and warns you accordingly.
The warning vibration occurs earlier in the fol-
lowing situations:
R
You approach the outer lane marking on a
bend
R
The road has very wide lanes, e.g. a motorway
R
The system detects solid lane markings
The warning vibration occurs later in the follow-
ing situations:
R
The road has narrow lanes
R
You cut the corner on a bend
Towing a trailer
Important safety notes
G
WARNING
You could lose control of the vehicle/trailer
combination if it begins to swerve. The vehi-
cle/trailer combination could even overturn.
There is a risk of an accident.
On no account should you attempt to
straighten out the vehicle/trailer combina-
tion by increasing speed. Decrease your
speed and do not countersteer. Brake if nec-
essary.
194
Towing a trailer
Driving and parking
English 
