Engine compartment
223Coolant
G
Risk of injury
The cooling system is pressurised. There-
fore, only unscrew the cap once the engine
has cooled down. The coolant temperature
gauge must display less than 70 °C. You
could otherwise be scalded by escaping hot
coolant.
Coolant consists of water and antifreeze/cor-
rosion inhibitor. Only check the coolant level
when the vehicle is on a level surface and the
engine has cooled down. Checking the coolant level The expansion tank is located in the engine
compartment on the left when viewed in the
direction of travel. 1
Cap
2 Expansion tank
3 Marker bar
X Slowly turn cap 1by half a turn anti-clock-
wise to allow excess pressure to escape.
X Turn cap 1further anti-clockwise and
remove it.
There is sufficient coolant in expansion
tank 2if the coolant is level with the
marker bar 3in the filler neck when cold
or approximately 1.5 cm higher when hot. X
Top up the coolant if necessary.
X Replace cap 1and tighten all the way to
the stop.
You will find further information about coolant
in the "Technical data" section
(Y page 370). Windscreen washer system/head-
lamp cleaning system*
The washer fluid reservoir is located in the
engine compartment on the left-hand side of
the vehicle when viewed in the direction of
travel. The headlamp cleaning system is also
supplied from the washer fluid reservoir. 1
Cap
X Add windscreen washer concentrate to the
washer fluid all year round. Operation
* optional
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Off-road driving
236
R
Check that items of luggage and loads are
stowed safely and are well secured
(Y page 193).
R Always keep the engine running and in gear
when driving on a downhill gradient. Acti-
vate DSR.
R Drive slowly and evenly, if necessary at a
walking pace.
R Ensure that the wheels are in contact with
the ground at all times.
R Drive with extreme care on unknown off-
road routes where visibility is poor. For
safety reasons, get out of the vehicle first
and survey the off-road route.
R Check the depth of water before fording
rivers and streams.
R Look out for obstacles such as rocks, holes,
tree stumps and furrows.
R Always keep the side windows and the slid-
ing /tilting sunroof* closed during the jour-
ney.
R Do not stray from marked routes or paths.
i Information about retrofitting special all-
terrain tyres is available from any
Mercedes-Benz Service Centre. Checklist before driving off-road X
Engine oil level: check the engine oil and
top it up if necessary.
X Vehicle toolkit: check that the jack is
working and make sure you have the wheel-
brace, a robust tow cable and a folding
spade in the vehicle.
X Wheels and tyres: check the tyre tread
depth and tyre pressure.
X Check for damage and remove foreign
objects, e.g. small stones, from the
wheels/tyres.
X Replace any missing valve caps.
X Replace dented or damaged wheels.
Checklist after driving off-road Driving over rough terrain places greater
demands on your vehicle than driving on nor-
mal roads. After driving off-road, check the
vehicle. This allows you to detect damage
promptly and reduce the risk of an accident
to yourself and other road users.
X
Deactivate the LOW RANGE* off-road gear
(Y page 141).
X Deactivate DSR (Y page 139).
X Set the differential lock setting to AUTO on
the selector wheel (Y page 143). X
Lower the vehicle level* again to a level
suitable to the road conditions, e.g. to the
highway/high-speed level.*
X Clean the headlamps and rear lights and
check for damage.
X Clean the front and rear licence plates.
X Clean the wheels/tyres with a water jet and
remove any foreign objects.
X Clean the wheels, wheel arches and the
vehicle underside with a water jet; check
for foreign objects and damage.
X Check whether twigs or other parts of
plants have become trapped. These
increase the risk of fire and can damage
fuel pipes, brake hoses or the rubber bel-
lows of the axle joints and propeller shafts.
X After the trip, examine without fail the
entire undercarriage, wheels, tyres, brakes,
bodywork structure, steering, chassis and
exhaust system for damage.
X After driving for extended periods across
sand, mud, gravel, water or in similarly dirty
conditions, have the brake discs, wheels,
brake pads /linings and axle joints checked
and cleaned.
X If you detect strong vibrations after off-road
travel, check for foreign objects in the
wheels and drive train and remove them if Operation
* optional
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Driving ab
road 240
R
Ensure that a bow wave does not form as
you drive.
R Clean any mud from the tyre tread after
crossing a ford.
R Apply the brakes to dry them after crossing
a ford. Driving on sand
Observe the following rules when driving on
sand:
R Select a higher vehicle level*.
R Select a shift range appropriate to the ter-
rain.
R Drive quickly to overcome the rolling resist-
ance. The vehicle could otherwise dig itself
into the sand.
R Drive in the tracks of other vehicles, if pos-
sible. Make sure that the ruts are not too
deep, that the sand is firm enough and that
your vehicle has sufficient ground clear-
ance. Ruts
Observe the following rules when driving
along ruts in off-road terrain or on roads with
loose gravel:
! Check that the ruts are not too deep and
that your vehicle has sufficient clearance.
Otherwise, your vehicle could be damaged
or bottom out and get stuck.
R Select the off-road drive program
(Y page 140) or the LOW RANGE *off-road
gear (Y page 141).
R Select a higher vehicle level*.
R Avoid high engine speeds.
R Select shift range 1.
R Drive slowly.
R Where ruts are too deep, drive with the
wheels on one side on the middle section
of turf if possible. Driving abroad
Points to remember
An extensive Mercedes-Benz Service network
is also available in other countries. The
Service Hotline's current telephone numbers
for use when you are abroad are to be found
in the "Service24h" chapter of the Service
Booklet.
Only low-octane fuel is available in certain
countries.
You can find further information about fuel
grades on (Y page 216). Symmetrical dipped beam
If your journey takes you to countries where
vehicles are driven on the opposite side of the
road to the country in which the vehicle is
registered, your headlamps must be switched
to symmetrical dipped beam. Oncoming traf-
fic will be dazzled less.
X Have the headlamps switched over at a
qualified specialist workshop, e. g. a
Mercedes-Benz Service Centre. G
Risk of accident
Have your headlamps switched back to
asymmetrical dipped beam if you visit a Operation
* optional
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Care
249your vehicle or - especially - the tyres. You
could otherwise damage the tyres and
cause an accident.
! Observe the instructions issued by the
equipment manufacturer concerning the
distance to be maintained between the
nozzle of the high-pressure cleaner and the
vehicle (at least 30 cm).
Move the high-pressure cleaner nozzle
around when cleaning your vehicle.
Do not aim directly at any of the following:
R tyres
R door joint
R electrical components
R battery
R connectors
R lights
R seals
Damaged seals or electrical components
can lead to failures or leaks. Cleaning the wiper blades and the out-
side of the windscreen G
Risk of injury
Turn the key to position 0in the ignition
lock before cleaning the windscreen or the
wiper blades. There is otherwise a risk of
the windscreen wipers being set in motion
and causing injury.
X Turn the key to position 1(Y page 75)in the
ignition lock.
X Set the windscreen wipers to position u
(Y page 98) on the combination switch.
X Turn the key to position 0(Y page 75)or
remove it when the wiper arms are vertical.
! Only fold the wiper arms away from the
windscreen when they are in a vertical posi-
tion, otherwise you will damage the bonnet.
X Fold the wiper arms away from the wind-
screen until you feel them engage.
X Clean the windscreen and the wiper blades.
X Fold the windscreen wipers back again
before the ignition is switched on. !
Do not clean the wiper blades too often
as this will result in the rubber becoming
porous, leading to wiper noise.
Cleaning the windows !
Do not use dry cloths, abrasive products,
solvents or cleaning agents containing sol-
vents to clean the inside of the windows.
Clean the insides of the windows with a
damp cloth or commercially-available glass
cleaner. Avoid touching the inside of the
rear windscreen and the side windows with
hard objects, e.g. ice scrapers or rings. You
could otherwise cause damage to the win-
dows, rear window heating or aerial on the
rear window.
i Anti-glare film retrofitted to the insides of
the windows could interfere with radio or
mobile phone reception, especially if it is
conductive or metal-coated film. Informa-
tion about anti-glare film can be obtained
from any Mercedes-Benz Service Centre.
Cleaning the headlamps X
Clean the plastic lenses of the headlamps
with a damp sponge. Operation
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Care
250
!
Only use washer fluid which is suitable
for plastic lenses. Unsuitable washer fluid
could damage the plastic lenses of the
headlamps.
Do not use the following:
R dry cloths
R abrasive cleaning agents
R solvents
R cleaning agents containing solvent
You could otherwise scratch or damage the
surface of the lenses.
Cleaning the plastic cover !
Do not use dry, coarse or hard cloths and
do not scrub. Doing so will scratch or dam-
age the surfaces.
! In order to protect the vehicle's high qual-
ity surfaces and to retain the overall
appearance, avoid contact with cosmetics
and suntan lotion. X
Wipe plastic parts with a damp, lint-free
cloth (e.g. a microfibre cloth).
X Light soiling: use a low-foaming soap (e.g.
a light liquid hand soap) diluted in water.
X Heavy soiling: use a cleaning agent that is
solvent-free and non-corrosive. Mercedes-
Benz recommends that you use a
Mercedes-Benz cleaning product for this
purpose.
Cleaning the steering wheel boss and
dashboard X
Moisten a clean lint-free cloth with water.
X Clean the plastic parts and the dashboard.
X If particularly dirty, use a mild detergent. G
Risk of injury
Do not use cleaners and cockpit care
sprays containing solvents to clean the
cockpit and steering wheel boss. Cleaners
containing solvents cause the surface to
become porous and in the event of an air-
bag being triggered, plastic parts that have
become loose could cause considerable
injuries. Cleaning the leather upholstery* !
Cleaning
R Clean genuine leather covers using a
damp cloth, then wipe the covers down
using a dry cloth. When doing this, make
sure that the leather does not become
soaked. For leather care, you should use
leather care foam A 001 986 59 71 10.
You can purchase this from any
Mercedes-Benz Service Centre.
R Clean artificial leather covers with a cloth
moistened with a solution containing 1%
detergent (e. g. washing-up liquid).
R Clean fabric covers with a microfibre
cloth moistened with a solution contain-
ing 1% detergent (e. g. washing-up liquid).
When cleaning, take care not to rub too
vigorously and always wipe entire seat
sections to avoid leaving visible lines.
Leave the seat to dry afterwards. Clean-
ing results depend on the type of dirt and
how long it has been there.
R Clean Alcantara covers with a damp
cloth. Make sure you wipe entire seat
sections to avoid leaving visible lines.
i Note that leather covers are a natural
product and as such are subject to a natural Operation
* optional
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Display
messages 275Display messages Possible cause/consequence Possible solution
D Coolant Stop car,
turn engine off The poly-V-belt may have torn. X
Stop the vehicle. Pay attention to the traffic
conditions as you do so.
X Switch off the engine.
X Check the poly-V-belt.
X If it has torn: do not drive on. Contact the
nearest qualified specialist workshop.
X If it is not damaged: do not start the engine
again until the message disappears. There is
otherwise a risk of engine damage. B Top up coolant See
Owner's Manual The coolant level is too low. X
Top up the coolant, observing the warning
notes before doing so (Y page 223).
X Have the coolant system checked at a qualified
specialist workshop if the coolant needs top-
ping up more often than usual. . Left-hand Corner-
ing light
or
Right-hand Corner-
ing light The left-hand and/or right-hand cornering
lamp* is faulty. X
Replace the bulb (Y page 312). . Left-hand dipped
beam
or
Right-hand dipped
beam The right-hand or left-hand dipped-beam
headlamp is faulty. X
Halogen headlamp: replace the bulb
(Y page 312).
X Bi-xenon headlamp*: visit a qualified special-
ist workshop. Practical advi
ce
* optional
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Display
messages 277Display messages Possible cause/consequence Possible solution
. Turn signal in mir-
ror, left
or
Turn signal in mir-
ror, right The turn signal in the left-hand or right-
hand exterior mirror is faulty. This mes-
sage will only appear if all LEDs have
failed. X
Visit a qualified specialist workshop. . Turn signal, front
left
or
Turn signal, front
right The front left-hand or right-hand turn sig-
nal is faulty. X
Replace the bulb (Y page 312). . Left-hand brake
lamp
or
Right-hand brake
lamp The left-hand or right-hand brake lamp is
faulty.
For vehicles with LED brake lamps*: this
message only appears when all LEDs have
failed. X
Brake lamps with a bulb: change the bulb
(Y page 312).
X Brake lamp with LEDs*: contact a qualified
specialist workshop. . 3rd brake lamp The third brake lamp is faulty. This mes-
sage will only appear if all LEDs have
failed. X
Visit a qualified specialist workshop. . Main beam, left
or
Main beam, right The left-hand or right-hand main-beam
headlamp is faulty. X
Halogen headlamp: replace the bulb
(Y page 312).
X Bi-xenon headlamp*: visit a qualified special-
ist workshop. Practical advi
ce
* optional
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Troubleshooting
301Headlamps and turn signals
Problem Possible cause/consequence Suggested solutions
The headlamps or the turn signals
in the exterior mirrors are misted
up on the inside. Air humidity is very high. X
Drive with the headlamps switched on.
The headlamps are demisted after a short distance. The headlamp housing is not
sealed and moisture has been
able to enter. X
Have the headlamps checked at a qualified specialist workshop. Windscreen wipers
Problem Possible cause/consequence Suggested solutions
The windscreen wipers are jam-
med. Leaves or snow, for example, may
be obstructing the windscreen
wiper movement. The wiper
motor has been deactivated. X
For safety reasons, you should remove the key from the ignition
lock.
X Remove the cause of the obstruction.
X Switch the windscreen wipers back on. The windscreen wipers fail com-
pletely. The windscreen wiper drive is
malfunctioning. X
Select another wiper speed on the combination switch.
X Have the windscreen wipers checked at a qualified specialist work-
shop. Practical advice
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