
Activatin
gActive Lane Keeping Assist
X Activat eActiv eLaneK eepin gAssist using
th eo n-bo ard computer; to do so, select
Standard
Standard orAdaptive
Adaptive (Ypage 288).
If you driv eatspeeds abov e60km/ hand
lane markings are detected, th elines in the
assistance graphic display (Y page 286)
are shown in green .ActiveL aneK eeping
Assist is read yfor use.
If Standard
Standard is selected, no warning vibra-
tion occur sif:
R you have switched on th eturns ignals. In
this case, th ewarning sare suppressed
for acertai nperiod of time.
R ad riving safet ysystem intervenes, such
as ABS, BA SorESP®
.
When Adaptive
Adaptive is selected, no warning
vibration occur sif:
R you have switched on th eturns ignals. In
this case, th ewarning sare suppressed
for acertai nperiod of time.
R ad riving safet ysystem intervenes, such
as ABS, BA SorESP®
.
R you accelerate hard ,e.g.k ickdown.
R you brak ehard.
R you steer actively, e.g. swerve to avoi dan
obstacle or chang elane quickly.
R you cut th ecorner onashar pbend.
In order that you are warned only when nec-
essary and in good time if you cross th elane
marking, th esystem detect scertai ncondi-
tion sand warn syou accordingly.
The warning vibration occur searlier if:
R you approac hthe outer lane markin gona
bend
R ther oad has ver ywide lanes, e.g. amotor-
way
R thes ystem detect ssolid lane markings
The warning vibration occur slater if:
R ther oad has narrow lanes
R you cut th ecorner onabend Towing
atrailer
If you couple up atrailer ,makes ure that you
have correctly established th eelectrical con-
nection .This can be accomplished by check-
ing th etrailer lighting. Towin
gatrailer Important safety notes
G
WARNING
You could lose control of th evehicle/trailer
combination if it begins to swerve. The vehi-
cle/traile rcom bination could eve noverturn.
Ther eisar iskofana ccident.
On no accoun tshould you attemp tto
straighten out th evehicle/traile rcom bina-
tio nbyi ncreasing speed. Decrease your
spee dand do no tcountersteer. Brake if nec-
essary. G
WARNING
If th emaximum th epermissible load for acar-
rier system is exceeded, th ecarrier could
come loos efromt hevehicl eand endanger
other road users. Ther eisariskofana ccident
and injury.
Never excee dthe permissible noseweight
when usin gacarrier.
Exceedin gthe maximum permissible nose-
weigh tofthetrailer drawbar on th eball cou-
plin gm ay caus edamag etothefollowing:
R your vehicle
R thet railer
R theb all coupling
R trailer to whitch
The vehicle/traile rcom bination could
become unstable.
If th enoseweight used is lower than th emin-
imum permissible noseweight ,the vehicle/
trailer combination could also become unsta- ble. 266
Towin
gatrailerDriving and pa rking

To avoid hazardous situations:
R make sure to check the noseweight before
each journey
R use adrawbar noseweight as close as pos-
sible to the maximum noseweight
R do not exceed the maximum permissible
noseweight
R do not use anoseweight lower than the
minimum noseweight
When reversin gthe vehicle towards the
trailer, make sure there is nobody between
the trailer and the vehicle.
Couple and uncouple the trailer carefully. If
you do not couple the trailer to the towing
vehicle correctly, the trailer could become
detached.
Make sure that the following values are not
exceeded:
R the permissible trailer drawbar noseweight
R the permissible trailer load
R the permissible rear axle load of the towing
vehicle
R the maximum permissible gross vehicle
weight of both the towing vehicle and the
trailer
You will find the applicable permissible val-
ues, which must not be exceeded, in the vehi-
cle documents.
You will find the values approved by the man- ufacturer on the vehicle identification plates
and those for the towing vehicle under "Tech-
nical data" (Y page 484).
When towing atrailer, your vehicle's handling
characteristics will be different in comparison to when driving without atrailer.
The vehicle/trailer combination:
R is heavier
R is restricted in its acceleration and gradi-
ent-climbin gcapability
R has an increased braking distance
R is affected more by stron gcrosswinds
R demands more sensitive steering
R has alarger turnin gcircle This can impair the vehicle's handling char-
acteristics. Adapt your driving style accord-
ingly. Maintain
asafe distance. Drive care-
fully.
When towing atrailer, alway sadjust your
speed to the curren troad and weather con-
ditions. Do not exceed the maximum permis- sible speed for your vehicle/trailer combina-
tion. Notes on towing
atrailer
General notes Trailer towing is not permissible on the fol-
lowing models:
R E2 20 BlueTEC BlueEFFICIENCY Edition
R E1 80
R E63A MG
R E63A MG S-MODEL
R E63A MG 4MATIC
R E63A MG S-MODEL4 MATIC
i When towing
atrailer, set the tyre pres-
sure on the rear axle of the towing vehicle
for am aximum load; see the tyre pressure
table in the fuel filler flap (Y page 420).
Please notet hat when towing atrailer,
PARKTRONIC (Y page 235), Active Parking
Assist (Y page 239) and Blind Spot Assist
(Y page 257) are only available with limita-
tions, or not at all.
i On vehicles without level control, the
height of the ball coupling will alter accord-
ing to the load placed on the vehicle. If nec- essary, use atrailer with aheight-adjusta-
ble drawbar.
You will find fitting dimensions and loads
under "Technical data" (Y page 482).
Driving tips i
Observe the notes on ESP ®
trailer stabi-
lisation (Y page 86). Towing
atrailer
267Driving and parking Z

The maximum permissible speed for vehicle/
trailer combinations depends on the type of
trailer. Before beginnin gthe journey, check
the trailer's document stosee what the max-
imum permitted speed is. Observe the legally
prescribed maximum speed in the relevant
country.
For certain Mercedes-Benz vehicles, the max-
imum permissible rear axle load is increased
when towing atrailer. See the "Technical
data" section to find out whether this applies to your vehicle (Y page 484). If you utilise any
of the added maximum rear axle load when
towing atrailer, the vehicle/trailer combina-
tion may not exceed amaximum speed of
100 km/hf or reasons concerning the oper-
ating permit. This also applie sincountrie sin
which the permissible maximu mspee dfor
vehicle/trailer combinations is above
100 km/h.
When towing atrailer, you rvehicle's handling
characteristics wil lbedifferent in comparison
to whe ndriving without atrailer and it will
consume more fuel.
Change into alower gea ringood time on long
and steep downhill gradients.
i This also applie
sifyou have activated
cruis econtrol, SPEEDTRONIC or
DISTRONIC PLUS.
This wil luse the braking effect of the engine,
so less braking wil lberequired to maintain
vehicle speed. This relieves the loa donthe
brake system and prevents the brake sfrom
overheating and wearing too quickly. If you
need additiona lbraking, depress the brake
pedal repeatedl yrather than continuously.
Driving tips If the trailer swings from side to side:
X Do not accelerate.
X Do not countersteer.
X Brake if necessary. R
Maintain agreater distance to the vehicle in
front than whe ndriving without atrailer.
R Avoid braking abruptly .Ifpossible ,brake
gently at first to allow the trailer to run on.
Then, increase the braking force rapidly.
R The values give nfor gradient-climbing
capabilities from astandstil lrefer to sea
level. When driving in mountainous areas,
note that the power outpu tofthe engine,
and consequently the vehicle's gradient-
climbing capability, decrease with increas-
ing altitude. Foldin
gout the ball coupling G
WARNING
If the bal lcoupling is not correctly engaged,
the trailer can detach .There is arisk of an
accident.
Always engag ethe bal lcoupling as described. G
WARNING
If you release the bal lcoupling or it does not
engag ecorrectly whe nfolding in, it wil lswing
out. Withi npivoting range of the bal lcoupling,
there is an increased risk of an accident and
injury.
Only release the bal lcoupling if the pivoting
range is unobstructed. Always make sure that the bal lcoupling engages whe nfolding in. Saloon
Before you can tow
atrailer with you rvehicle,
you must fold out the bal lcoupling. 268
Towing
atrailerDriving and parking

The release wheel is located behind the left-
hand side trim panel in the boot.
Opening the cover (Saloon):
X Slide luggage net ;down.
X Turn handle :around anti-clockwise and
fold cover =down. Estate
Before you can tow
atrailer with your vehicle,
you must fold out the ball coupling.
The release wheel is located behind the left-
hand side trim panel in the boot/luggage
compartment.
Opening the cover (Estate):
X Pull handle :in the direction of the arrow
and fold cover ;down. Saloon
Unlocking and folding out the ball cou-
pling (Saloon):
X Grip release wheel Aso that your thumb
lies on the thumb rest.
X Turn release wheel Aaround anti-clock-
wise until the ball coupling releases and folds out from under the rear bumper. Indi-
cator lamp ?flashes. Estate
Unlocking and folding out the ball cou-
pling (Estate):
X Grip release wheel ?so that your thumb
lies on the thumb rest.
X Turn release wheel ?around anti-clock-
wise until the ball coupling releases and
folds out from under the rear bumper. Indi- cator lamp =flashes. Saloon
Estate Towing
atrailer
269Driving and parking Z

X
Pull the ball coupling in the direction of the
arrow until it engages in avertical position.
Indicator lamp =goes out. The trailer
power socket is integrated in the ball cou-
pling and swivels out with it.
Saloon: indicator lamp ?goes out.
Estate: indicator lamp =goes out.
The multifunction display shows the
Trailer Trailer hitch
hitch Check
Checklock
lockmech.
mech. mes-
sage until the ball coupling is engaged.
X Remove the protective coverin gfrom the
ball coupling and store it in asafe place.
X Make sure that the ball of the ball coupling
is clean and greased.
HYBRID vehicles :make sure that you read
the "HYBRID" Supplement included in the
vehicle literature. Otherwise, you may not
recognise dangers. Coupling up
atrailer
X Make sure that the transmission is in posi-
tion P.
X Apply the parking brake.
X Position the trailer horizontally behind the
vehicle.
X Couple up the trailer.
X Establish the electric connection between
the vehicle and the trailer.
X Check that the trailer lighting system is
working.
Ac onnected trailer is only recognised when
the electrical connection is established
correctly and when the lighting system is
working properly. The function of other sys-
tems, such as ESP ®
,P ARKTRONIC and
Active Parking 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 rebound- ing of the overrun brake.
X Make sure that the transmission is in posi-
tion P.
X Apply the parking brake.
X Secure the trailer against rolling away.
X Remove the trailer cable and decouple the
trailer. Folding in the ball coupling
G
WARNING
If you release the ball coupling or it does not
engage correctly when folding in, it will swing out. Within pivoting range of the ball coupling,
there is an increased risk of an accident and
injury.
Only release the ball coupling if the pivoting
range is unobstructed. Always make sure that the ball coupling engages when folding in.
X Place the protective coverin gonthe ball
coupling. 270
Towing
atrailerDriving and parking

X
Open the socket cover.
X Insert the plug connector with lug :into
groove =on the socket.
X Turn bayonet connection ;clockwise to
the stop.
X Let the cover engage.
X If you are using an adapter cable, secure
the cable to the trailer with cable ties. Towing
atrailer
273Driving and parking Z

Display messages
Possible causes/consequences and
M
MSolutions Blind Spo
tAssist
Blind Spo tAssist
not
not available
available when
when
towing atrailer
towing atrailer
See Owner' sManual
See Owner' sManual Blind Spot Assis
torActiveBlind Spot Assis tisdeactivated while
towin gatrailer.
You hav eestablished th eelectrica lconnectio nbetween th etrailer
and your vehicle.
X Press aon thesteerin gwhee ltoc onfir mthedisplay mes-
sage. Blind Spo
tAssist
Blind Spo tAssist
inopera‐
inopera‐
tive tiveor Active Blind
Active Blind
Spot
Spot Assist
Assist inoper‐
inoper‐
ative
ative Blind Spot Assis
torActiveBlind Spot Assis tisfaulty.
The yellow 9indicato rlamp salso ligh tupint heexterio rmir-
rors.
X Consult aqualified specialist workshop. Park
Park
Assist
Assist cancel‐
cancel‐
led
led The driver's doo
risopen and th edriver's seat belt has no tbeen
fastened.
X Repea tthe parkin gprocess wit hthe seat belt fastene dand the
driver's doo rclosed. You inadvertentl
ytou ched th emultifunction steerin gwhee lwhile
steerin ginterventio nwas active.
X Whil esteerin ginterventio nisactive,makes uren otto touch the
multifunction steerin gwheel. The vehicl
ehas started to skid and ESP ®
has intervened.
X Use Active Parking Assis tagain later (Y page 239). Park
Park
Assist
Assist inoper‐
inoper‐
ative
ative You hav
ejustc arrie doutalarg enumber of turning or parking
manoeuvres.
Active Parking Assis twill become available again after approx-
imately te nminute s(Ypage 239).
X Pull ove rand stop th evehicl esafely as soo naspossible, paying
attention to roa dand traffic conditions.
X Switc hoffand restar tthe engine.
If th emultifunction display still shows th edisplay message:
X Consult aqualified specialist workshop. PARKTRONI
Cisfaulty.
X Consult aqualified specialist workshop. Par
kA ssist
Par kA ssist
switched off switched off The vehicl
eisparked. Awarnin gtonea lso sounds.
The display message disappear sautomatically. DISTRONIC PLU
Soff
DISTRONIC PLU Soff DISTRONIC PLU
Shas been deactivated (Y page 217).
If it was no tdeactivated by th edriver ,awarnin gton ea lso sounds. 318
Display
messagesOn-boardcomputer an ddisplays

Useful information
............................342
Stowage areas ................................... 342
Features ............................................. 360 341Stowing and features