The support provided by the system can be
impaired if:
R
there is poor visibility, e.g. due to insuffi-
cient illumination of the road, or due to
snow, rain, fog or spray
R
there is glare, e.g. from oncoming traffic,
the sun or reflections (e.g. when the road
surface is wet)
R
the windshield is dirty, fogged up, damaged
or covered, for instance by a sticker, in the
vicinity of the camera
R
no, or several, unclear lane markings are
present 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 too
small and the lane markings thus 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 strong shadows cast on the road
The system is switched to passive and no lon-
ger assists you by performing steering inter-
ventions if:
R
you actively change lanes
R
you switch on the turn signal
R
take your hands off the steering wheel or do
not steer for a prolonged period of time
i
After you have finished changing lanes,
Steering Assist and Stop&Go Pilot are auto-
matically active again.
DISTRONIC PLUS Steering Assist does not
provide assistance:
R
on very sharp corners
R
when a loss of tire pressure or a defective
tire has been detected and displayed.
Pay attention also to the important safety
notes for DISTRONIC PLUS (
Y
page 181).
The steering interventions are carried out
with a limited steering moment. The system
requires the driver to keep his hands on the
steering wheel and to steer himself.
If you do not steer yourself or if you take your
hands off the steering wheel for a prolonged
period of time, the system will first alert you
with a visual warning. A steering wheel sym-
bol appears in the multifunction display. If you
have still not started to steer and have not
taken hold of the steering wheel after five
seconds at the latest, a warning tone also
sounds to remind you to take control of the
vehicle. Steering Assist and Stop&Go Pilot are
switched to passive. DISTRONIC PLUS
remains active.
Activating Steering Assist and Stop&Go
Pilot
X
Activate the DISTRONIC PLUS with Steer-
ing Assist and Stop&Go Pilot function using
the on-board computer (
Y
page 236).
The
DTR+:
DTR+: Steering
Steering Assistant
Assistant On
On
mes-
sage appears in the multifunction display.
Steering Assist and Stop&Go Pilot are
active.
Information in the multifunction display
If Steering Assist and Stop&Go Pilot are acti-
vated but not ready for a steering interven-
tion, steering wheel symbol
:
appears in
gray. If the system provides you with support
by means of steering interventions, sym-
bol
:
is shown in green.
Deactivating Steering Assist and Stop&Go
Pilot
X
Deactivate the DISTRONIC PLUS with
Steering Assist and Stop&Go Pilot function
using the on-board computer
(
Y
page 236).
The
DTR+: Steering Assistant Off
DTR+: Steering Assistant Off
message appears in the multifunction dis-
190
Driving systems
Driving
and
parking
