must have been issued by means of intermittent
vibration through the steering wheel. In addi-
tion, alane with lane markings on both sides
must be detected.
In the case of abroken lane marking being
detected, alane-correcting brake application
can only be made if avehicl ehas been detected
in the adjacent lane. Oncoming vehicles, over-
taking vehicles and vehicles in adjacent lanes
can be detected.
i Af
urther lane-correcting brake application
can only occur after yourv ehiclehas returned
to the original lane.
No lane-correcting brake application occurs if:
R you clearl yand activel ysteer, brake or accel-
erate
R you cut the corner on asharp bend
R you have switched on the turn signal
R ad riving safety system intervenes, such as
ESP ®
,P RE-SAFE ®
Brake or Active Blind Spot
Assist
R you have adopted asporty driving style with
high cornering speed sorhigh rates of accel-
eration
R ESP ®
is deactivated
R the transmission is not in position D
R on vehicles with atrailert ow hitch, the elec-
trical connection to the traile rhas been cor-
rectly established
R aloss of tyre pressure or adefective tyre has
been detected and displayed
R an obstacl einthe lane in which you are driving
has been detected
Active Lane Keeping Assist may not detect other
road users or traffic situations. An inappropriate
brake application may be interrupted at any time
if:
R you steer slightly in the opposite direction
R you switch on the turn signal
R you clearl ybrake or accelerate
Al ane-correcting brake application is interrup-
ted automatically if:
R ad riving safety system intervenes, such as
ESP ®
,P RE-SAFE ®
Brake or Active Blind Spot
Assist
R lane markings are no longer detected Activating/deactivatin
gActive Lane
Keeping Assist X
To activate: press button ;.
Indicator lamp :lights up. The Lane Keep‐ Lane Keep‐
ing
ing Assist
Assist on
onmessage appears in the mul-
tifunction display.Ifa ll conditions have been
satisfied, awarning or steering intervention
may be made.
If you drive at speed sabove 60 km/h and lane
markings are detected, the lines in the assis- tance graphic display (Y page 243) are
shown in green. Active Lane Keeping Assist is
read yfor use.
X To deactivate: press button;.
Indicator lamp :goes out. Active Lane Keep-
ing Assist is deactivated. The Lane
Lane Keeping Keeping
Assist off
Assist off message appears in the multi-
function display.
Selecting Standard or Adaptive setting X In the Assistance
Assistance menu on the on-board
computer, select the Active Lane Keep‐
Active Lane Keep‐
ing Assist
ing Assist function (Ypage 246).
X Select Standard
Standard orAdaptive
Adaptive.
When Standard
Standard is selected, no warning vibra-
tion occurs if:
R you have switched on the turn signals. In
this event, the warnings are suppressed for
ac ertain perio doftime.
R ad riving safety system intervenes, such as
ABS, BAS or ESP ®
.
When Adaptive
Adaptive is selected, no warning vibra-
tion occurs if:
R you have switched on the turn signals. In
this event, the warnings are suppressed for
ac ertain perio doftime.
R ad riving safety system intervenes, such as
ABS, BAS or ESP ®
.
R you accelerate hard, e.g. kickdown. Driving systems
225Driving and parking Z
X
Position the trailer horizontally behind the
vehicle.
X Couple up the trailer.
X Establish the electrical connection between
the vehicle and the trailer.
X Check that the trailer lighting system is work-
ing.
X Push the combination switch upwards/down-
wards
X Check whether the corresponding turn signal
on the trailer is flashing.
Ac onnected trailer is only detected when the
electrical connection is established correctly
and when the lighting system is working prop- erly. The function of other systems, such as
ESP ®
,P ARKTRONIC, Active Parking Assist,
Active Blind Spot Assist or Lane Keeping
Assist also depends on this. Uncoupling
atrailer G
WARNING
If you uncouple atrailer with an engaged over-
run brake, you could trap your hand between
the vehicle and the trailer drawbar. This poses ar isk of injury.
Do not uncouple atrailer with an engaged
overrun brake. G
WARNING
Vehicles with level control:
If you disconnect the trailer cable, the vehicle is lowered. This can cause you or others to
become trapped between the vehicle body
and tyres, or underneat hthe vehicle. This
poses arisk of injury.
Make sure that no-one is in the immediate
vicinit yofthe wheel arch or underneat hthe
vehicle when disconnectin gthe trailer cable.
! Do not disconnect
atrailer with an engaged
overrun brake. Otherwise, your vehicle could
be damaged by the rebounding of the overrun
brake.
! Remove the installed adapter cable before
folding in the ball coupling. Otherwise, dam-
age may occur to the rear bumper and the
adapter cable. X
Make sure that the transmission is in position
P.
X Apply the electric parking brake.
X Secure the trailer against rolling away.
X Remove the trailer cable and decouple the
trailer. Trailer power supply
! You can connect accessories to the perma-
nent power supply up to amaximum of 240 W.
You cannot charge atrailer battery using the
power supply.
When it leaves the factory, your vehicle's trailer
socket is equipped with apermanen tpower
supply and apower supply that is switched on
via the ignition lock.
The permanen tpower supply is supplied via
trailer socket pin 9.
The power supply that is switched on via the
ignition lock is supplied via trailer socket pin 10.
The trailer's permanen tpower supply is
switched off in the event of low vehicle supply
voltage and after six hours at the latest.
You can find more information about fitting the
trailer electric sataqualified specialist work-
shop.
X To switch the connected power supply on
or off: turn the key to position 2or 0respec-
tively (Y page 145). Failure check for LEDs
If LED lamps are fitted in the trailer, amalfunc-
tion message may appear in the multifunction
display even if there is no fault. The reason for
the error message may be that the curren thas
fallen below the minimum of 50 mA.
To ensure reliable operation of the failure indi-
cator, each LED chain in the trailer lighting must
be guaranteed aminimum curren tof50mA. Trailer with 7-pin connector
General notes Trailer with 7-pin connector:
you can connect
to the 13-pin socket on the ball coupling using
an adapter or, if necessary, an adapter cable. Towing
atrailer
229Driving and parking Z
Alway
sswitch off the windscree nwiper sand
the ignition before cleaning the windscree nor
wipe rblade s.
! Do not pull on the wipe
rblade .Otherwise,
the wipe rblade could be damaged.
! Do not clean wipe
rblade stoo ofte nand do
not ru bthem too hard. Otherwise, the graph-
ite coating could be damaged .Thisc ould
cause wipe rnoise.
! Hol
dthe wipe rarm securel ywhenf olding
back. The windscree ncould be damaged if
the wipe rarm hits against it suddenly.
X Fol dthe wipe rarm sa wayfrom the wind-
screen (Y page 126).
X Clea nthe wipe rblade scarefull yusing adamp
cloth.
X Fol dthe windscree nwiper sbacka gain before
switching on the ignition.
Cleanin gthe exterior lighting !
Onl
yusecleaning agents or cleaning cloths
tha tare suitabl efor plastic lenses .Unsuitable
cleaning agents or cleaning cloths could
scratch or damage the plastic lenses of the
exterio rlighting.
X Clea nthe plastic lenses of the exterio rlight-
ing using awetsponge and amildc leaning
agent, e.g .Mercedes-Benz car shampo oor
cleaning cloths.
Cleanin gthe mirro rturn signal !
Onl
yusecleaning agents or cleaning cloths
tha tare suitabl efor plastic lenses .Unsuitable
cleaning agents or cleaning cloths could
scratch or damage the plastic lenses of the
mirror turn signals.
X Clea nthe plastic lenses of the mirror turn sig-
nal sint he exterio rmirror housing using awet
sponge and mil dcleaning agent, e.g.
Mercedes-Benz car shampo oorcleaning
cloths.
Cleanin gthe sensors !
If yo
uclean the sensors with ahigh-pressure
cleaner, make sure tha tyou kee pad istance
of at leas t30cmb etween the vehicl eand the
high-pressure cleane rnozzle. Information abou
tthe correct distance is availabl efrom
the equipment manufacturer. X
Clea nsensors :of the driving system swith
water, car shampo oand asoftc loth.
Cleanin gthe reversin gcamera and
360° camera !
Do not clean the camera lens and the area
around the reversing camera or 360°camera
with ahigh-pressure cleaner. X
Make sure tha tthe vehicl eisstationar yand
tha tthe key is in position 2in the ignition lock.
X Ope nthe camera cove rfor cleaning via the
multimedia system (se eseparate operating
instructions).
X To clean the camera: usec lean water and a
sof tcloth to clean camera lens :.
360° camera: if youdrive at speed sabove
30 km/h or with the key in position 0or 1in the
ignition lock, the cove rofthe 360° camera
closes automatically. 330
CareMaintenance and care
Removin
gthe towin geye X
Loosen the towing ey eand unscrew it.
X Attach cover :to the bumpe rand press until
it engages.
X Pu tthe towing ey ebacki nto the vehicl etool
kit. Towin
gthe vehicle awa ywitht he rear
axl eraised
Whe ntowing your vehicl ewitht he rea raxle
raised ,itisimportant that yo uobserve the
safety instructions (Y page 347).
! Vehicles with automatic transmissio
nmust
not be towe dwitht he rea raxler aised .The
car/traile rcombination may otherwise
swerve or eve noverturn.
! The ignition mus
tbes witched off if yo uare
towing the vehicl ewitht he rea raxler aised.
Intervention by ESP ®
could otherwise dam-
ag et he brake system.
X Switch on the hazard warning lamps
(Y page 120).
X Move the front wheel stothe straight-ahead
position.
X If necessary, turn the key in the ignition lock
to position 0and remove the key from the
ignition lock.
X Whe nleaving the vehicle, take the key with
you. Towin
gthe vehicle with both axles on
the ground
Vehicles with automati ctransmission: the
automatic transmissio nautomaticall yshifts to
position Pwhen yo uopent he driver' sorfront-
passenger doo rorwheny ou remove the key
from the ignition lock. In order to ensure that the automatic transmissio nstay sinp osition N
when towing away the vehicle, yo umustd othe
following:
X Make sure that the vehicl eisstationary.
X Turn the key to position 2in the ignition lock. X
Depress the brake pedal and keep it
depressed.
X Shif tthe automatic transmissio ntoposition
N.
Vehicles with manual transmission: X Turn the key to position 2in the ignition lock.
X Depress the brake pedal and keep it
depressed.
X Depress the clutch pedal fully and shift to
neutral.
Vehicles with manual or automati ctrans-
mission:
X Leave the key in position 2in the ignition lock.
X Releas ethe brake pedal.
X Releas ethe electri cparking brake.
X Switch on the hazard warning lamps
(Y page 120).
In order to signal achange of direction when
towing the vehicl ewitht he hazard warning
lamps switched on, us ethe combination switch
as usual. In this case, only the turn signal sfor
the desire ddirection flash. Whe nyou reset the
combination switch, the hazard warning lamps
star tflashing again. Transporting the vehicle
Vehicles with automati ctransmission !
Whe
nthe vehicl eisloaded for transport, the
front and rea raxles mus tbes tationary and on
the same transportation vehicle. Positioning
ove rthe connection point of the transport
vehicl eisnot permitted. The drive trai nmay
otherwise be damaged. Towin
gawayand tow-starting
349Breakdown assistance Z