Page 225 of 389

up
: for ahigher set speed or down ;for
al ower set speed.
The set spee dappear sinm ultifunction dis-
play ?and is shown in status indicator
=.
i If you press the cruise con trol lever
beyon dthe pressur epoint, th eset speed
also changes in 1km/ hincrements. Off-road program (ve
hicles without
th eO N&O FFROAD package)
The off-road program assists you in driving
off-road. The engine’s performance charac-
teristics and th egearshifting chara cteristics
of th eautomatic transmission are adapted for
this purpose. ABS, ESP ®
and 4ETS programs
especially adapted to off-road driving are acti-
vated. Agentle accelera torp edal curve is also
selected, i.e. the accelera torp edal must be
depressed muc hfurther in order to acceler-
ate.
Do not use the off-road program on roads that
are snow-covered or icy or if you have fitted
your vehicle with snow chains.
For information about driving off-road, see
(Y page 166). X
To engage: press button :.
Indicator lamp ;lights up. The Çoff-
road indicator appears in the multifunction
display. X
To deactivate: press button:.
Indicator lamp ;and the Çoff-road
indicator go out in the multifunction dis-
play. Off-road program (vehicles with the
ON&OFFROAD package)
General notes The off-road programs assis
tyou in driving
off -road. The engine’s performanc echarac-
teristics and the gearshifting characteristics
of the automatic transmission ar eadapted for
this purpose. ABS, ESP ®
and 4ETS programs
especially adapted to off -road drivin gare acti-
vated. An accelerator peda lcurve suitable for
the terrain is selected, i.e. the accelerator
pedal must be depressed further to acceler-
ate.
Do not use the off-road programs on roads
that are snow-covered or icy or if you have
fitted your vehicle with snow chains.
For information about driving off-road, see
(Y page 166).
The following program messages remain in
the multifunction display until the corre-
spondin gvehicle level has been set. Up to off-
road level 2, you can hide the program mes-
sages using the %ora button on the
multifunction steering wheel.
Off-road progra m1 Select off-road program
1for gentle off -road
ter rain, e.g. for gravel or sand surfaces or
tracks. The engine's torque is restricted to a
limited degree and the drive wheels can spin,
i.e. the spinning of the wheels results in a
cutting action ,for better traction.
You can only activate off -road program 1
when driving at speeds below 100 km/ h.The
Driv eprogram OFFROAD 1Max. speed 100 km/h message appears in th
emultifunc-
tion display. 222
Off-road driving systemsDrivin
gand parking
Page 226 of 389

X
Selector wheel : engaged:
brieflypress
selecto rwheel :.
Selector wheel :extends.
X To select: turnselector wheel :until indi-
cator lamp ;comes on.
Off-road indicator =appears in the multi-
function display.
Off-road level 1isset to +3 0mmabove the
highwa ylevel.
Off-road program 1switches to the AUTO
program if you drive faster than 110 km/h.
Off-road program 2 Select off-road program
2for rough terrain,
e.g. for steep and/or uneven terrain or for
drivin gonr ocky terrain.
i Your vehicle has an automatically activa-
ted differential lock for the transfer case. It
con trols the balance between the front and
rear axles.
The differential lock improves the vehicle’s
trac tion. 4ETS (Y page 64)controls the bal-
anc ebetween the two wheels on one axle.
You can only activate off-road program 2
when driving at speeds below 40 km/h. X
Selector wheel : engaged:
briefly press
selector wheel :.
Selector wheel :extends.
X To select: turnselector wheel :until indi-
cator lamp ;lights up.
Off-road indicator =appears in the multi-
function display.
R Off-road level 2isset; the vehicle is
raised by +6 0mmcompared to the high-
way level.
R DSR is switched on.
R The differential lock is closed.
Off-road program 2automatically switches to
off-road program 1ifyou dri vefaster than
45 km/h. LO
WR ANGE off-road gear (vehicles
with th eON&O FFROAD package)
General notes The LOW RANGE off-road gear assists you
when driving off-road and when fording. When
LOW RANGE is engaged, th
eengin e’sp er-
formance characterist icsa nd the gearshifting
characteristics of the automatic transmiss ion
are adapted for thi spurpose. Off-roa
ddriving systems
223Drivingandparki ng Z
Page 227 of 389

For information abou
tdriving off-road, see
(Y page 166). Yo uwillf ind information about
driving safety systems in conjunction with
LOW RANGE in the "Saf ety" section
(Y pag e60).
Shift ranges HIGH RANGE
Roa
dposition for all nor-
ma ldriving situations LO
WR ANGE Off-road position for driv-
ing off-road and fording
The transmission ratio
between the engine and
wheels is only approx-
imatel yone third of that in
the HIGH RANGE road
pos ition. The drive torque
is correspondingly higher
as aresult.
Do not use LOW RANGE:
R on slippery road surfa-
ces, e.g. in the case of
slush
R on snow or ice-covered
roads
R if you have snow chains
on your vehicle G
WARNING
Always wait for the gear change process from
HIGH RANGE to LOW RANGE –and from LOW
RANGE to HIGH RANGE –tocomple te.Don ot
tur no ff the engine while changi nggear and
do not switc hthe automatic transmission to
anot hergear.
If you do not wait for the gear change process
to complete, it may not be cor rectly imple-
mented. Th etransfer cas emay then be in
neutral and the connection between the
engine and the drive axles may be disen-
gaged .The vehicle coul dthen mov efreely,
eve nifa gear is engaged, and coul dinadver-
tently start moving, particularly if it is on a
slope. Observe the following description in "Mes-
sages in the multifunction display". From HIGH RANG
EtoLOW RAN GE
! Only carr yout the gear change process if:
R the engine is running
R the transmission is in position N
R you are not driving above 40 km/h
X Press LOW RANGE button :.
Indicator lamp ;flashes.
If the gear change process has taken place,
indicator lamp ;lights up. The LOW
RANGE display appears in multifunction
display ?and in status indicator =.
While indicator lamp ;is flashing, you can
cancel the gear change by pressing LOW
RANGE button :again.
i You cannot switch LOW RANGE on if the
SPORT on-road program is activated; the
LO WR ANGE Not in drive program SPORT message then appears in th
emulti-
function display. 224
Off-road driving systemsDrivin
gand parking
Page 228 of 389

From LOW RANGE to HIG
HRANGE
! Only carry out the gear change process if:
R the engin eisrunning
R the transmission is in position N
R you are not driving above 70 km/h
X Press LOW RANG Ebutton :.
Indicato rlamp ;flashes.
When the gear change is complete, indica-
tor lamp ;goes out. In th emultifunction
display, the LOWR ANGE Off message
appears and status indica tor=goes out.
While indica torlamp ;is flashing, you can
cancel the gear change by pressin gLOW
RANGE button :agai n.
Me ssages in th emultif un ction display
If ag ear chang eprocess ha snot been suc-
cessful, th efollowin gmessages may be dis-
played in the multifunction display:
LOW RANGE Max. speed 40 km/h :Y
ou have
been drivin gabove 40 km/h. Indicator
lamp ;also flashes.
X Drive mor eslowly to carr yout the gear
change process.
LO WR ANGE Shift to position N briefly :T
he transmission is in position D
and you ar enow drivin gatbelow 40 km/h.
X Shif tthe transmission to Nto complete the
gear change process.
LOW RANGE Shifting cancelled Please
reactivate :T
he shifting process has not
been completed.
X Maintai nall gear change condition sand
carry out the gea rchange process again.
LO WR ANGE Stop Apply parking brake :
Aw arning ton eisalso heard. The gear change
proces shas not been completed. LOW
RANGE is in the neut ralp osition .There is no
con nectio nbetween the engine and the drive
wheels.
! Do not driv eany further, otherwis eyou
coul ddamage the vehicle's drive train. X
Stop the vehicle. Take into account the
road and traffic conditions when doing this.
X Apply the electric parking brake
(Y page 161).
X Carry out the gear change process again.
If the gear change process has been carried
out, the LOWR ANGE Stop Apply park‐ ing brake message disapp
ears. ON&OFFROAD men
uint he COMAND
display (vehicles wit hthe ON&OFF-
ROA Dpackage)
Yo uc an displ ay some driving systems ,driving
programs and additional information in the
COMAND display. X
Make sure that th ekey is in position 2in
the ignition lock.
X Make sure that COMAN DOnline is activa-
ted, see the separate COMAND operating
instructions.
X Pres sthe : func tion button.
The corresponding displays appear in the
CO MAN Ddisplay:
R level control
R steering angle
R vehicle' sangle of inclination
R uphill or downhil lgradient in percentage
R on- road/off-road program selected
R condition of the differential lock for the
transfer case
R the LOW RANGE off-road gear is selected Off-road driving systems
225Drivingand parking Z
Page 229 of 389

R
cond ition of the LOW RAN GEoff-r oad
gear
R the on-roa dtraile rprogram is selected Tow
inga trailer Note
sont owingatrailer
Important safety notes G
WARNING
When reversing the vehicl etowards the
trailer, make sure there is nobod ybetween
the trailer and the vehicle.
Couple and uncoupl ethe trailer carefully .If
you do not couple the trailer to the towing
vehicle correctly, the trailer coul dbecome
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 maximu mpermissible gross vehicle
weight of both the towing vehicle and the
trailer
You will fin dthe applicable permissible val-
ues, whic hmust not be exceeded ,inthe vehi-
cle documen ts.
You will find the values approved by the man-
ufacturer on the vehicle identification plates
and those for the towing vehicle in the "Tech-
nical data" section. G
WARNING
If the Checktrailer hitch locking mechanism message appears in th
emulti-
function display while the vehicle is in motion,
pull over immediately and check whethe rthe
ball coupling is correctly engaged. G
WARNING
When towin gatrailer, you rvehicle' shandling
characteristics will be different in comparison
to when driving without atrailer.
Th ev ehicle/ 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 demand smore sensitive steering
R has alarger turnin gcircle
As aresult, the handlin gcharacteristic smay
be impaired and you may lose control of the
vehicle. This could lead to an accident with
serious or even fatal injuries.
When towing atrailer, alway sadjust your
speed to the current road and weather con-
ditions. Do not exceed the maximum permis-
sible speed for your vehicle/trailer combina-
tion. G
WARNING
Never depress the brak epedal continuously
while the vehicle is in motion ,e.g. never cause
the brakes to rub by applying cons tant slight
pedal pressure. Thi scauses the brake system
to overheat, increases the braking distance
and can lead to the brakes failing completely. G
WARNING
On no account shoul dyou attempt to dra wthe
vehicle/ trailer combination out by increasing
speed. G
WARNING
If you exceed the maximum noseweight when
using acarrier system on the ball coupling:
R the carrier system may be thrown around.
R the ball coupling and the carrier system
may become detached from the vehicle.
As aresult, you may injure others or cause an
accident. 226
Towing
atrailerDriving and parking
Page 230 of 389

Do not exceed the maximum noseweight.
When driving with aloaded carriersystem,
always adjust your drivin gstyle to th eprevail-
ing road, traffic and weather conditions and
drive par ticularly carefully.
You can use carrier sys tems, e.g. bi cycle
racks or load-bea ringimplements on th eball
coupling. The maximum noseweight of 75 kg
applies when usin gcarrier system sontheball
coupling.
General information i
Chec kthe tyr epressure when towin ga
trailer. You will find the values in the tyre
pressure table in the fuel filler flap of the
vehicle (Y page 359).
You will find installation dimensions and loads
in the "Technical data" section
(Y page 378).
The maximum noseweight of the trailer draw-
bar on the ball coupling is 18
.H owever, the
actual noseweight must not exceed the value
given on the trailer tow hitc hortrailer identi-
ficatio nplates. The lowest weight applies.
! Use anoseweight as close as possible to
the maximum permissible noseweight .Do
not use anoseweight of less than 50 kg,
otherwise the trailer ma ycome loose.
Bear in min dthat the payload and the rear
axl eload ar ereduced by the actual nose-
weight.
Please note that when towing atrailer, PARK-
TRONIC (Y page 191) and Blind Spo tAssist
(Y page 208) ar eonly available with limita-
tions ,orn ot at all.
i On vehicles withou tlevel control, the
height of the ball couplin gwill alter accord-
ing to the load placed on the vehicle. If nec-
essary, use atrailer wit haheight-adjusta-
ble drawbar. Driving tips i
Observ ethe information on ESP ®
trailer
stabilisation (Y page 65)and on pull ing
away with atrailer. (Y page 141).
Vehicles wit hthe ON&OFFROAD package:
selec tthe trailer program (Y page 219) with
the off-road program selector wheel in the
cen treconsole.
Th em aximum permissible spee dfor vehicle/
trailer combination sdepends on the type of
trailer .Befor ebeginning the journey, check
the trailer's documents to see what the max-
imu mpermitted speed is. Observ ethe legally
prescribed maximum speed in the relevant
country.
For certai nMercedes-Ben zvehicles, the max-
imu mp ermissible rear axle load is inc reased
when towing atrailer. Refer to th e"Techni cal
data" section to fin dout whether this applies
to your vehicle. If you utilise any of the added
maximum rear axle load when towing atrailer,
th ev ehicle/trailer combination may not
exceed amaximum spee dof100 km/ hfor
reasons concer ning the operating permit.
Thi salso applies in countries in which the
permissible maximum speed for vehicle/
trailer combinations is above 100 km/h.
When towing atrailer, your vehicle's handling
characteristics will be differe ntin comparison
to when drivin gwithout atrailer and it will
consume more fuel.
On long and stee pdownhil lgradients ,you
must select shift range 1,2or 3in good time.
i This also applies if you have activated
cruise con trol, SPEEDTRONIC or DI S-
TRONIC PLUS.
This will use the brakin geffect of th eengine,
so les sbraking wil lberequired to maintain
the speed. This relieves the load on the brake
system and prevent sthe brakes from over-
heating and wearing too quickly .Ifyou need
additional braking, depress the brake pedal
repeatedly rather than con tinuously.
18 Data unavailable at time of going to print. Towing
atrailer
227Driving andparki ng Z
Page 231 of 389

Driving tips
R
Maintain agreater distanc efrom th evehi-
cle in front than when driv ingw ithou ta
trailer.
R Avoid braking abruptly .Ifpossible, brake
gentl yatfirst to allow the trailer to run on.
Then, increase the brakin gforc erapidly.
R The values given for gradient-climbing
capabilities from astandstill refer to sea
level. Whe ndriving in mountainou sareas,
note that th epower outpu tofthe engine,
and consequen tlyt he vehicle' sgradient-
climbing capability ,decrease with increas-
ing altitude.
If the trailer swings from side to side:
X Do not accelerate.
X Do not coun ter-steer.
X Brake if necessary. Folding ou
tthe bal lcoupling G
WARNING
Make sure that no persons or animals are in
the pivoting range of the ball coupling. Other-
wise, they could be injured.
Before you can tow atrailer wit hyour vehicle,
you must fold out the ball coupling.
X Make sure that the vehicle is stationary.
X Open the tailgate. G
WARNING
Make sur ethat the ball coupling is engaged,
either in its folded-ou torfolded-i nposition.
The indicator lam ponthe release knob is off.
Do not pull the ball coupling release switch
when atrailer is coupled or abicycle rack is
fitted.
X Pull the release knob :until the ball cou-
pling unlocks.
The ball coupling folds out from under the
rear bumper.
The indicator lamp on the release knob
flashes. The trailer socket folds away auto-
matically. X
Press the ball coupling in the direction of
the arrow until it engages in avertical posi-
tion.
The indicator lam ponthe release knob
goes off.
The multifunc tion display shows the
Chec ktrailer hitch lock message
until th eball coupling is engaged.
X Remove the protective cap from the ball
coupling and store it in asafe place. Coupling up
atrai ler
Impor tant safety notes G
WARNI
NG
Neve rlock, unlock, open or close avehicle
door or tailgat ewhen coupling up or decou- 228
Towing
atrailerDriving and parking
Page 232 of 389

pling
atrailer. Th evehicle level could change
and you could endanger yourself or others.
Never press the ADS button or operate the
leve lcontrol while you are coupling up or
decoupling atrailer.
Steel-spring vehicles X
Make sure that th etransmission is in posi-
tion P.
X Engag ethe electric parkin gbrake.
X Positio nthe trailer level behind the vehicle.
X Coupl eupthe trailer.
X Establish the electrical con nection
betwee nthe vehicle and the trailer.
X Chec kthat the trailer lighting system is
working.
Vehicles wit hthe AIRMATIC package X
Make sure that th etransmission is in posi-
tion P.
X Engag ethe electric parkin gbrake.
X Start th eengine.
X Set the vehicl etohighway level
(Y page 189).
X Set the Adaptive Dampin gSystem (ADS )to
AUTO orCOMF(Y page 188).
X Switch off the engine.
X Close the doors and tailgate.
X Position the trailer level behind the vehicle.
X Couple up the trailer.
X Establish the electrical connection
betwee nthe vehicle and the trailer.
X Chec kthat the trailer lighting system is
working.
i If you hav ecoupled atrailer, th evehicle
will remain at highway level.
The vehicle automatically lowers to high-
way level if you driv efaster than 30 km/h
with atrailer. Th evehicle is not lowered to
high-speed level even if you are travelling
at higher speeds. This also applies when using accessories
that are plugged into the socket of the
trailer tow hitch (e.g. abicycle rack). Decoupling
atrailer
Important safety notes G
WARNING
Do not disconnect atrailer with an engaged
overru nbrake .Otherwise, you rhand could
becom etrapped between th ebumpe rand
drawbar. G
WARNING
As soo nasyou raise the trailer drawbar, the
unladen vehicle rises slightly .The vehicle then
lower stod riving level.
Make sure that nobod yisinthe vicinit yofthe
wheel arch or the underbody. You coul doth-
erwise trap yoursel forothers. G
WARNING
Th ev ehicle is lowered as soo nasyou discon-
nec tthe trailer cable. Make sur ethat nobody
is in the vicinit yofthe wheel arch or the
underbody. You coul dotherwis etrap yourse lf
or othe rs.
As soon as you decoupl ethe trailer ,the unla-
den vehicle rise sslightly. Make sure that you
or others are not injured in the process.
! Do not disconnect atrailer wit han
engaged overrun brake. Otherwise, your
vehicle could be damage dbythe rebound-
ing of the overru nbrake.
Steel-spring vehic les X
Ma ke sure that the transmission is in posi-
tion P.
X Engag ethe electric parkin gbrake.
X Secure th etrailer agains trollin gaway.
X Remove the trailer cable and decouple the
trailer. Towing
atrailer
229Driving andparki ng Z