156Vehicle careCaution
Only use high-performance brake
fluid approved for the vehicle.
Brake fluid 3 195.
Brake fluid level control indicator R
3 84.
Clutch fluid
9 Warning
Clutch fluid is poisonous and
corrosive. Avoid contact with eyes, skin, fabrics and painted surfaces.
If the fluid in the reservoir falls below
the MIN mark, seek the assistance of
a workshop.
Clutch fluid 3 195.
Vehicle battery Vehicles without stop-start system
will be equipped with a lead acid
battery. Vehicles with stop-start
system will be equipped with an
AGM vehicle battery which is not a
lead acid battery.
The vehicle battery is maintenance-
free provided that the driving profile
allows sufficient charging of the
battery. Short-distance-driving and
frequent engine starts can discharge
the vehicle battery. Avoid the use of
unnecessary electrical consumers.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
Laying up the vehicle for more than
6 weeks can lead to battery
discharge. Disconnect the clamp from the negative terminal of the vehicle
battery.
Ensure the ignition is switched off
before connecting or disconnecting
the vehicle battery.
The anti-theft alarm siren must be
deactivated as follows: Switch the ignition on then off, disconnect the
vehicle's battery within 15 seconds.
158Vehicle care
Charging the vehicle battery9Warning
On vehicles with stop-start
system, ensure that the charging potential does not exceed
14.6 volts when using a battery
charger. Otherwise the vehicle
battery might be damaged.
Jump starting 3 187.
Warning label
Meaning of symbols: ■ No sparks, naked flames or smoking.
■ Always shield eyes. Explosive gases can cause blindness or
injury.
■ Keep the vehicle battery out of reach of children.
■ The vehicle battery contains sulfuric acid which could cause
blindness or serious burn injuries.
■ See the Owner's Manual for further
information.
■ Explosive gas may be present in the vicinity of the vehicle battery.Diesel fuel filter
Drain diesel fuel filter of residual
water at every engine oil change.
Place a container underneath the
filter housing. Turn drain plug
anticlockwise using a suitable
screwdriver, to drain off the water.
The filter is drained as soon as diesel fuel emerges from the port. Retighten
the drain plug by turning it clockwise.
With engine switched off, turn ignition
key to ON, wait approx. 5 seconds,
and turn key to LOCK to perform
priming operation. Perform this
176Vehicle care
V=up to 150 mphW=up to 168 mph
Tyre pressureCheck the pressure of cold tyres at
least every 14 days and before any
long journey. Do not forget the spare
wheel. This also applies to vehicles
with tyre pressure monitoring system.
Use the valve cap key to make
unscrewing the valve caps easier.
The valve cap key is located on the
inside of the tank flap.
Tyre pressure 3 207.
The tyre pressure data refers to cold
tyres. It applies to summer and winter tyres.
Always inflate the spare tyre to the
pressure specified for full load.
The ECO tyre pressure serves to
achieve the smallest amount of fuel
consumption possible.
Incorrect tyre pressures will impair
safety, vehicle handling, comfort and
fuel economy and will increase tyre
wear.
The tyre pressure tables show all
possible tyre combinations 3 207.
For the tyres approved for your
vehicle, refer to the EEC Certificate of
Conformity provided with your vehicle
or other national registration
documents.
The driver is responsible for correct
adjustment of tyre pressure.9 Warning
If the pressure is too low, this can
result in considerable tyre warm-
up and internal damage, leading to tread separation and even to tyre
blow-out at high speeds.
If the tyre pressure shall be reduced
or increased on a vehicle with tyre
pressure monitoring system, switch
off ignition.
Tyre pressure monitoring
system The tyre pressure monitoring system
checks the pressure of all four wheels
once per minute when vehicle speed
exceeds a certain limit.Caution
Tyre pressure monitoring system
warns only about low tyre pressure
condition and does not replace
regular tyre maintenance by the
driver.
All wheels must be equipped with pressure sensors and the tyres must
have the prescribed pressure. If
wheels without sensors are mounted,
the tyre pressure monitoring system
is not operational. Retrofitting of
sensors is possible.
Notice
In countries where the tyre pressure monitoring system is legally
required, the use of wheels without
pressure sensors will invalidate the
vehicle type approval.
Vehicle care177
The current tyre pressures can be
shown in the menu item Tyres in the
Board Computer menu. Press the
BC button on the Infotainment system
and select the menu item.
The tyre pressure monitoring system
automatically detects the vehicle
load. A message appears on the
information display if inconsistent tyre
pressures are detected. In some
versions, the message is displayed in
abbreviated form.
For example, the following messages can be displayed:A graphic indicating the left rear tyre
is shown together with the current tyre
pressure; slight pressure deviation.
Reduce speed. Check tyre pressure at next opportunity with an
appropriate gauge and correct if
necessary.
On the Colour-Info-Display, this
message will appear in yellow.A graphic indicating the front left tyre is shown together with the current tyre
pressure; significant pressure
deviation or direct pressure loss.
Steer out of the flow of traffic as
quickly as possible without
endangering other vehicles. Stop and check the tyres. Mount the spare
wheel if necessary 3 182.
On the Colour-Info-Display, this
message will appear in red.
Acknowledgement of warnings 3 91,
3 93.
Vehicle messages 3 99.
178Vehicle care
If the tyre pressure is to be reduced orincreased, switch off the ignition. Tyre
pressures 3 176, 3 207.
External high-power radio equipment
could disrupt the tyre pressure
monitoring system.
The tyre pressure monitoring system
valve cores and sealing rings must be
replaced each time the tyres are
changed.
Temperature compensation
Tyre pressure depends on the
temperature of the tyre. During
driving, tyre temperature and
pressure increase.
The tyre pressure value shown in the
display is the actual tyre pressure.
Therefore it is important to check tyre pressure with cold tyres.
Tread depth
Check tread depth at regular
intervals.
Tyres should be replaced for safety
reasons at a tread depth of 2-3 mm
(4 mm for winter tyres).For safety reasons it is recommended that the tread depth of the tyres on
one axle should not vary by more than
2 mm.
The legally permissible minimum
tread depth (1.6 mm) has been
reached when the tread has worn
down as far as one of the tread wear
indicators (TWI). Their position is
indicated by markings on the
sidewall.
If there is more wear at the front than
the rear, swap round front wheels and
rear wheels. Ensure that the direction
of rotation of the wheels is the same
as before.
Tyres age, even if they are not used.
We recommend tyre replacement
every 6 years.
Changing tyre and wheel
size
If tyres of a different size than those
fitted at the factory are used, it may be necessary to reprogramme the
speedometer as well as the nominal tyre pressure and make other vehicle modifications.
After converting to a different tyre
size, have the label with tyre
pressures replaced.9 Warning
Use of unsuitable tyres or wheels
may lead to accidents and will
invalidate the vehicle type
approval.
If wheel rims of a different type are to
be installed, the wheel nuts may also
need to be changed. We recommend you consult your service partner.
Vehicle care179Wheel coversWheel covers and tyres that are
factory approved for the respective
vehicle and comply with all of the
relevant wheel and tyre combination
requirements must be used.
If the wheel covers and tyres used are
not factory approved, the tyres must
not have a rim protection ridge.
Wheel covers must not impair brake
cooling.9 Warning
Use of unsuitable tyres or wheel
covers could lead to sudden
pressure loss and thereby
accidents.
Tyre chains
Tyre chains are only permitted on the
front wheels.
They must be fitted to the tyres
symmetrically in order to achieve a
concentric fit.
Always use fine mesh chains that add no more than 15 mm to the tyre tread
and the inboard sides (including chain lock).
9 Warning
Damage may lead to tyre blowout.
Tyre chains are permitted only on
16 inch wheels. We recommend you consult your service partner.
If the use of tyre chains is required
after suffering a flat front tyre, fit the
temporary spare wheel on the rear
axle and transfer one of the rear
wheels to the front axle.General
The use of tyre chains is not permitted on the temporary spare wheel.
Tyre repair kit
Minor damage to the tyre tread or
sidewall can be repaired with the tyre
repair kit.
Do not remove foreign bodies from
the tyres.
Tyre damage exceeding 4 mm or that
is at the tyre's sidewall near the rim
cannot be repaired with the tyre repair kit.
In vehicles with a tyre repair kit, there may not be a jack and vehicle tool kit.
Vehicle tools 3 173.
Temporary spare wheel 3 185.
180Vehicle care9Warning
Do not drive faster than 50 mph.
Do not use for a lengthy period.
Steering and handling may be
affected.
If you have a flat tyre:
Apply the electrical parking brake
3 136 and engage first gear, reverse
gear or P.
The tyre repair kit is in a storage
compartment below the floor cover in the load compartment.
To remove the tyre repair kit, open the
tailgate.
Pull the floor cover handle upwards
3 68.
Vehicle tools 3 173.
Caution
Do not allow objects to protrude
above the top of the rear floor
storage compartment, to avoid
damage to the storage area and
the load compartment floor.
1. Release the sealant filler hose 1
and the power plug 2.
2. Unscrew valve cap from defective
tyre.
Screw the sealant filler hose onto
the tyre valve.
3. Connect the power plug to the power outlet. Unplug all items
from other power outlets.
4. Switch on ignition. To avoid discharging the battery, werecommend running the engine.
5. Turn the selector switch anticlockwise to the sealant +
air position.
Vehicle care183
Make the following preparations and
observe the following information:
■ Park the vehicle on a level, firm and
non-slippery surface. The front wheels must be in the straight-ahead position.
■ Apply the electrical parking brake 3 136 and engage first gear,
reverse gear or P.
■ Remove the spare wheel 3 185.
■ Never change more than one wheel
at a time.
■ Block wheel diagonally opposite the wheel to be changed, by placing
wedge blocks or equivalent in front
and behind the wheel.
■ Use the jack only to change wheels
in case of puncture, not for
seasonal winter or summer tyre
changes.
■ Never exceed jack maximum working load (900 kg).
■ If the ground on which the vehicle is standing is soft, a solid board
(max. 1 cm thick) should be placed
under the jack.■ Do not raise the vehicle more than is necessary to change a wheel.
■ No people or animals may be in the
vehicle when it is jacked-up.
■ Never crawl under a jacked-up vehicle.
■ Do not start the engine when it is raised on the jack.
■ Clean wheel nuts and thread before
mounting the wheel.9 Warning
Do not grease wheel bolt, wheel
nut and wheel nut cone.
1. Pull off the wheel cover.
2. Install the wheel wrench ensuring that it locates securely and loosen
each wheel nut by one turn by
turning anticlockwise.
3. The location of front and rear jacking points is indicated by
notches on the bottom edge of the
vehicle, under the doors.