Mercedes-Benz 2015 M-Class Operator's Manual page 248

Driving systems
246
If a lane-correcting brake application occurs,
display : appears in the multifunction dis-
play.
If you leave your lane, under certain circum-
stances the vehicle will brake briefly on one
side. This is meant to assist you in bringing
the vehicle back to the original lane.
This function is available in the range between
40 mph and 120 mph (60 km/h and
200 km/h).
A lane-correcting brake application can only
be made after driving over a solid, recogniz-
able lane marking. Before this, a warning
must be given by means of intermittent vibra-
tion in the steering wheel. In addition, a lane
with lane markings on both sides must be
recognized. The brake application also
slightly reduces vehicle speed.
i A further lane-correcting brake applica-
tion can only occur after your vehicle has
returned to the original lane.
No lane-correcting brake application occurs
if:
you clearly and actively steer, brake or
R
accelerate.
you cut the corner on a sharp bend.
R
you have switched on the turn signal.
R
a driving safety system intervenes, e.g.
R
®
ESP , PRE-SAFE
Spot Assist.
you have adopted a sporty driving style with
R
high cornering speeds or high rates of
acceleration.
®
ESP is switched off.
R
®
Brake or Active Blind
the transmission is not in position D.
R
on vehicles with a trailer tow hitch, the
R
electrical connection to the trailer has been
correctly established.
the off-road program is activated (vehicles
R
without the ON&OFFROAD package).
off-road program 1 or 2 is activated (vehi-
R
cles with the ON&OFFROAD package).
the LOW RANGE off-road gear is activated
R
(vehicles with the ON&OFFROAD package).
a loss of tire pressure or a defective tire has
R
been detected and displayed.
Active Lane Keeping Assist does not detect
traffic situations or road users. An inappro-
priate brake application may be interrupted at
any time if you:
steer slightly in the opposite direction
R
switch on the turn signal
R
clearly brake or accelerate
R
A lane-correcting brake application is inter-
rupted automatically if:
a driving safety system intervenes, e.g.
R
® ®
ESP , PRE-SAFE Brake or Active Blind
Spot Assist.
lane markings can no longer be recognized.
R
Switching on Active Lane Keeping Assist
Switch on Active Lane Keeping Assist using
X
the on-board computer; to do so, select
Standard Standard or Adaptive Adaptive
If you drive at speeds above 40 mph
(60 km/h) and lane markings are detected,
the lines in the assistance graphics display
( page 275) are shown in green. Lane
Y
Keeping Assist is ready for use.
When Standard Standard is selected, no warning
vibration occurs if:
you switch on the turn signals. In this
R
event, the warnings are suppressed for a
certain period of time.
a driving safety system intervenes, such
R
as ABS, BAS or ESP
When Adaptive Adaptive is selected, no warning
vibration occurs if:
( page 276).
Y
®
.