Stations
Saving ............................................ 176
Saving manually ............................. 176
Setting ...........................................1 76
Steering (display message) .............. 154
Steering wheel
Adjusting (electrically). .................... 72
Buttons (on-board computer) ......... 132
Cleaning ......................................... 220
Gearshift paddle s........................... 104
Important safety notes .................... 71
Steering whee lgearshift paddles .... 104
Stowag eareas ................................... 199
Stowag ecom partment
Door stowag ecompartment .......... 200
Ma pp ockets .................................. 200
Stowag ecom partments
Armrest (underneath) .................... 200
Cu ph olde r..................................... 206
Glove compartment ....................... 199
Important safety information ......... 199
Stowag enet....................................... 200
Stowag espace
Stowag enet ................................... 200
Summe rtyres
In winter ........................................ 237
Sun visor ............................................ 207
Surround lighting (on-board com-
puter) .................................................. 138
System language
Setting ........................................... 173
System settings
Bluetooth ®
settings ....................... 174
Date ............................................... 171
Displa y........................................... 172
Displaying information ................... 173
Languag e....................................... 173
Sel fdiagn osis................................ 173
Time ............................................... 171
Systems settings
Audio source volume s.................... 173
Butto ntones .................................. 172
Standby time ................................. 172 T
Tail lamp Replacing bulb s............................... 80 Tail lamps
Display message ............................ 145
Technical data
Capacities ...................................... 250
Drawbar load (maximum) ............... 256
Information .................................... 248
Trailer load s................................... 256
Vehicl edata. .................................. 254
Telephone
Accepting acall. ............................ 136
Accepting acall( multimedia sys-
tem) ............................................... 179
Call disconnectio n......................... 179
Call lists ......................................... 181
Emergency cal l112 ....................... 179
Important safety notes .................. 178
Menu (on-board computer) ............ 136
Numbe rfrom the phone boo k........ 136
Phone boo k.................................... 180
Redialling ....................................... 136
Rejecting acall( multimedia sys-
tem) ............................................... 179
Rejecting/ending acall. ................ 136
Using the telephone ....................... 179
see Mobil ephone
Temperature
Coolant .......................................... 131
Outsid etemperature ...................... 131
Setting (climate control ).................. 86
Tilt/slidin gsunroof
see Sliding sunroof
Ton esettings
Balance and fader .......................... 171
Top Tether ............................................ 41
Total distanc erecorder .................... 133
Tow-starting
Emergency engine starting ............ 232
Important safety notes .................. 229
Towing
Important safety notes .................. 229
In the event of malfunctions .......... 231
Towin gatrailer
Axle load ,permissibl e.................... 256
Pulling away with atraile r................ 97
Trailer tow hitch ............................. 256
Towin gaway
With both axles on the ground ....... 230 16
Index
Disengaging th
ediffere ntial locks You can disengage the differential lock
sinthe
followin gorder: ;,?, =.
X To simultaneously disengage all differen-
tia
llocks: press switch =.
Yellow activatio nindicator lamps Aand red
function indicator lamps :go out.
After approximately three seconds of normal
driving, ABS, 4ETS, ESP ®
and BA Sare activa-
ted.
The Differential lock sactive ABS
Differential lock sactive ABS
and ESP not available
and ESP not available message disap-
pear sint he multifunction displaya nd the
å!÷warnin glamps in th einstru-
men tcluster go out.
X Shif tthe transfer case to the HIGH RANGE
on-road position (Y page 124).
If red function indicator lamps :do not go out
when disengagin gthe differential locks:
X Observe th etraffic situation.
X Make slight steerin gmovements while the
vehicle is in motion.
Red function indicator lamps :go out when
th ed ifferential lock sare disengaged. Towing
atrailer Importan
tsafety notes G
WARNING
Th eb raking system can overheat if you leave
yourf oot on the brake peda lwhile driving.
This increases the braking distance and could
even caus ethe braking system to fail .There is
ar isk of an accident.
Never use the brake peda lasafootrest. Do
not simultaneously depress both the brake
peda land the accelerator peda lwhile driving. G
WARNING
You coul dlose control of the vehicle/trailer
combination if it begins to swerve .The vehi-
cle/trailer combination coul deven overturn.
There is arisk of an accident.
On no account should you attempt to
straighten out the vehicle/trailer combina-
tion by increasing speed. Decrease your speed and do not countersteer. Brake if nec-
essary.
G
WARNING
If the ballc oupling is not fitted correctly and
the bolts supplied are not tightened to the
specified tightening torque ,the trailer could
come loose. There is arisk of an accident.
Always fit the ballc oupling as described.
Observe the specified tightening torque when fitting the coupling. G
WARNING
If the maximu mpermissible loadf orac arrier
system is exceeded, the carrie rcouldc ome
loos efrom the vehicl eand endange rother
road users. There is arisk of an accident and
injury.
Never exceed the maximu mpermissible load
when using acarrier.
! If you have
atrailer tow hitch retrofitted,
changes to the engine cooling system may be necessary, depending on the vehicl etype.
If you have atrailer tow hitch retrofitted,
observe the anchorage points on the chassis.
Retrofitting atrailer tow hitch is only permissible
if at railer loadiss pecified in yourv ehicledocu-
ments. If this is not the case, then the vehicl eis
not approved for towing atrailer.
For more information, please contact aqualified
specialist workshop.
Exceeding the maximu mpermissible nose-
weight of the trailer drawbar on the ballc oupling
may caus edamage.
Damag emay be caused to the following:
R towing vehicle
R trailer
R ballc oupling
R trailer tow hitch
The vehicle/trailer combination coul dbecome
unstable.
The vehicle/trailer combination coul dalso
become unstable if the noseweight used is lower
than the minimu mpermissible noseweight. Towin
gatrailer
127Driving an dparking Z
To avoid hazardous situations:
R make sure to check the noseweight before
each journey
R the noseweight should be as close as possible
to the maximum noseweight
R do not exceed the maximum permissible
noseweight
R the noseweight must not be lower than the
minimum permissible noseweight
Make sure that the following values are not
exceeded:
R the permissible 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
When reversin gthe towing vehicle, make sure
there is nobody between the trailer and the vehi- cle.
The applicable permissible values, which must
not be exceeded, can be found:
R in your vehicle documents
R on the type plates for the trailer
R on the vehicle identification plate
If the values differ, the lowest value applies.
You will find the values approved by the manu-
facturer on the identification plates and for the
towing vehicle under "Technical data"
(Y page 256).
When reversin gthe towing vehicle, make sure
there is nobody between the trailer and the vehi- cle.
Couple and uncouple the trailer carefully. If youdo not couple the trailer to the towing vehicle
correctly, the trailer could become detached.
When towing atrailer, your vehicle's handling
characteristics will be different from when driv-
ing without atrailer.
The vehicle/trailer combination:
R is heavier
R is restricted in its acceleration and gradient-
climbing capability
R has an increased braking distance
R is affected more by stron gcrosswinds
R demands more sensitiv esteering
R has alarger turnin gcircle This can impair the vehicle's handling charac-
teristics. Adapt your driving style accordingly.
Maintain asafe distance. Drive carefully.
When towing atrailer, alway sadjust your speed
to the current road and weather conditions. Do
not exceed the maximum permissible speed for
your vehicle/trailer combination. Notes on to
wingatrailer
General notes When towing
atrailer, set the tyre pressure on
the rear axle of the towing vehicle for amaxi-
mum load. Further information on the tyre pres-
sure table in the fuel filler flap (Y page 109).
The height of the ball coupling changes with the load of the vehicle. If necessary, use atrailer
with aheight-adjustable drawbar.
You will find permissible trailer loads under
"Technical data" (Y page 256).
Driving tips X
Observe the information on ESP ®
trailer sta-
bilisation (Y page 55).
X On long and steep downhill gradients, select
shift range 1,2or 3(Y page 105) in good time.
X If necessary, shift the transfer case to LOW
RANGE (Ypage 124).
This will use the braking effect of the engine, so less braking will be required to maintain
the vehicle speed. This relieves the load on
the brake system and prevents the brakes
from overheating and wearing too quickly. If
you need additional braking, depress the
brake pedal repeatedly rather than continu-
ously.
The maximum permissible speed for vehicle/
trailer combinations depends on the type of
trailer. Before beginnin gthe journey, check the
trailer's documents to see what the maximum
permitted speed is. Observe the maximum per-
missible speed in the relevant country.
For certain Mercedes-Benz vehicles, the maxi-
mum permissibler ear axle load is increased
when towing atrailer. See the "Technical data"
section to find out whether this applies to your
vehicle (Y page 256). In the event of increased
rear axle load, the car/trailer combination may
not exceed amaximum speed of 100 km/h for
reasons concerning the operating permit. This 128
Towing
atrailerDriving and parking
also applies in countries in whic
hthe maximum
permissible spee dfor car/trailer combinations
is greate rtha n1 00 km/h.
When towing atrailer, your vehicle's handling
characteristics will be differen ttowhen driving
without atrailer and th evehicle will consume
mor efuel.
Driving tips R
Maintain agreater distance to the vehicle in
front than when driving without atrailer.
R Avoid braking abruptly. If possible, brake gen-
tly at first to allow the trailer to run on. Then,
increase the braking force rapidly.
R The values given for gradient-climbing capa-
bilities from astandstill refer to sea level.
When driving in mountainous areas, note that
the power output of the engine, and conse-
quently the vehicle's gradient-climbing capa-
bility from astandstill, decrease with increas-
ing altitude.
If the trailer swings from side to side:
X Do not accelerate under any circumstances.
X Do not countersteer.
X Brake, if necessary. Coupling up
atrailer
! Do no
tconnect th etrailer brak esystem (if
th et railer is fitte dwitho ne)d irectly to the
towing vehicle's hydraulic brak esystem,
since this is equipped wit hananti-lock brak-
ing system. Otherwise, neither th ebrakes on
th et ow ing vehicle no rthe brakes on the
trailer will work.
Observ ethe maximum permissible trailer
dimension s(widt hand length).
X Apply th evehicle's parking brake.
X Mak esure that th eautomatic transmission is
in transmission position P.
X Positio nthe trailer on aleve lsurface behind
th ev ehicle.
X Couple up th etrailer.
X Establish th eelectrical connection between
th ev ehicle and th etrailer.
X Chec kthatthe trailer lighting system is work-
ing.
X Push th ecombinatio nswitch upward sand
downwards and check whether th ecorre- sponding tur
nsignal indicator 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 ®
also depends on this. Uncoupling
atrailer G
WARNING
If you uncouple atrailer with an engaged over-
run brake, you coul dtrap yourh and between
the vehicl eand the trailer drawbar. This poses
ar isk of injury.
Do not uncouple atrailer with an engaged
overru nbrake.
! Do not disconnect
atrailer with an engaged
overru nbrake. Otherwise, yourv ehiclecould
be damaged by the rebounding of the overrun brake.
X Apply the parking brake.
X Make sure that the automatic transmission is
in transmission position P.
X Secure the vehicl eand trailer against rolling
away.
X Close all doors, including the rear door.
X Remove the trailer cable.
X Uncoupl ethe trailer. Traile
rpower supply
! Yo
uc an connect accessories with amaxi-
mu mp ower consumption of 180 Wtothe
permanent powe rsupply.
Yo um ustn ot charge atrailer battery using the
powe rsupply.
The trailer socket of your vehicl eisequippe dat
the factory with apermanent powe rsupply.
The permanent powe rsuppl yiss upplie dvia
trailer socket pi n9.
Yo uc an find mor einformatio nabout installing
the trailer electrics at aquali fied specialis twork-
shop. Towin
gatrailer
129Driving an dparking Z
X
Lift up cover :of positive terminal ;in the direction of the arrow.
X Connect positive terminal ;on yourv ehicle to positive terminal ?of donor battery Busing the
jump lead, Alwaysb eginw ith positive terminal ;on youro wn vehicle first.
X Start the engine of the donor vehicle and run it at idling speed.
X Connect negative terminal Aof donor battery Bto earth point =of yourv ehicle using the jump
lead, connecting the jump leadtod onor batteryBfirst.
X Start the engine.
X Before disconnecting the jump leads, let the engines run for several minutes.
X First, remove the jump leads from earth point =and negative terminal A,then from positive
terminal ;and positive terminal ?.Each time, beginatt he contacts on youro wn vehicle.
X Close cover :of positive terminal ;after removing the jump leads.
X Have the battery checked at aqualifieds pecialist workshop.
Jump-starting is not considered to be anormal operating condition.
i Jump-starting cablesa
nd further information regarding jump-starting can be obtained at any
qualifieds pecialist workshop. Towinga
wayand tow-starting Importan
tsafety notes G
WARNING
Safety-relevant function sare restricted or not
available if:
R the engine is not running.
R the brake system or the power steering is
malfunctioning
R the voltag esupply or the vehicle's electrical
system is malfunctioning.
If yourv ehicleist owed,s ignificantly greater
force may be required to steer the vehicl eor
to brake. There is arisk of an accident.
In such circumstances, use atowing bar.
Make sure that the steering is moving freely
before towing. G
WARNING
If the steering whee llock is engaged, the vehi-
cle can no longer be steered .There is arisk of
an accident.
Always switch on the ignitio nwhen towing
with atow rope or atowing bar. G
WARNING
When towing or tow-starting another vehicle
and its weight is greater than the permissible gross weight of yourv ehicle, the:
R towing eye may be torn off
R car/trailer combination may swerve or
even overturn
There is arisk of an accident.
When towing or tow-starting another vehicle,
its weight should not be greater than the per- missible gross weight of yourv ehicle.
Detail sonthe permissible gross vehicl eweight
of yourv ehiclecan be found on the vehicl eiden-
tification plate (Y page249).
! You may tow the vehicl
efor am aximu mof
50km. Atowing spee dof50km/h must not
be exceeded.
For towing distances over 50 km, the entire
vehicl emust be lifted up and transported.
! Only secure the tow cabl
eortowing bar to
the towing eyes. You coul dotherwise damage
the vehicle.
! Observe the following points when towing
with atow rope:
R Secure the tow rope on the same side on
both vehicles.
R Make sure that the tow rope is not longer
than legally permitted. Mark the tow rope in the middle, e.g. with awhite cloth Towin
gawayand tow-starting
229Breakdown assis tance Z
Carefully depress th
eaccelerato rpedal and
mak esure that th ewheel sdon otspin when
driving on steep terrain.
i If th
eload on th efront axle is reduced when
pullin gaway on asteep uphill slope, th efront
wheel shave atendenc ytos pin .4ETSr ecog-
nises this and brakes th ewheel saccordingly.
The rear wheel torque is increased and it is
easie rtop ull away.
Further informatio nonthemaximum gradient
climbin gabilit y(Ypage 122). Trailer to
whitch Permissible trailer load, braked (at a
minimu mgradient-climbing capabil-
ity of 12% from astandstill) Model
G3
50dPROFES-
SIONAL 3200 kg
Permissible trailer load, unbraked
Model
G3
50dPROFES-
SIONAL 750 kg
Maximum drawbar load
! Use
adrawbar noseweight as close as pos-
sibl etot he maximu mpermissible nose-
weight. Do not use anoseweight of less than
50kg, otherwise the trailer may come loose.
Note that the payloada nd the rear axle load
are reduced by the actua lpayload.
The drawbar loadr educes the permissible over-
all loa dand rear axle load.
The drawbar loada cts from above onto the ball
hea dont he trailer tow hitch.
The drawbar loa disnot included in the trailer
load. Model Permissiblen
ose-
weight G3
50dPROFES-
SIONAL 140 kg You can secure carrier systems, e.g
.bicycle
rack sorl oad-bearing devices, to the ball cou-
pling. The maximum payload of 75 kg applies
when carrier systems are attached to the ball
coupling. Permissible rear axle load during
trailer towing
Model Permissibl
eaxle
load G3
50dPROFES-
SIONAL 1900 kg256
Trailer tow hitchTechnical data