Page 176 of 235
174Vehicle care9Danger
Ensure adequate ventilation when
charging the battery. There is a
risk of explosion if gases
generated during charging are
allowed to accumulate!
Jump starting 3 199.
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 battery.Additional battery
Depending on the vehicle's auxiliary
equipment, certain models may have
an additional battery mounted under
the front passenger bench seat.
Note
The additional battery is
automatically connected to the main vehicle battery only when the engine
is running. It does not need to be
manually disconnected before
Page 177 of 235

Vehicle care175disconnecting the main vehicle
battery or before jump starting the vehicle.
The terminals are designed for
additional electrical consumers up to
a maximum of 50 A.
Jump starting 3 199.
Diesel fuel filter The diesel fuel filter is accessible from the underside of the vehicle.
Drain filter of residual water at every
engine oil change.
Place a container underneath the
filter housing. Loosen the knurled
screw on the lower part of the filter by approx. one turn, to drain off the
water.
The filter is drained as soon as water-
free diesel fuel emerges. Retighten
the screw.
Check diesel fuel filter at shorter
intervals if the vehicle is subjected to
extreme operating conditions.
Diesel fuel system bleeding
If the fuel tank has been run dry, it will be necessary to air vent or bleed the
diesel fuel system.
Refuel then proceed as follows:With ignition key
● Switch on the ignition (key to position 2) for 5 seconds at a
time.
● Switch off ignition (key to position
1 ) for 3 seconds.
● Repeat this process multiple times.
● Start the engine (key to position 3) then switch off (key to position
0 ).
Ignition switch positions 3 133.
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176Vehicle careWith power button
● Insert the electronic key in thecard reader.
● Press START/STOP without
pressing any of the pedals.
● Wait a few minutes before starting engine.
Power button 3 133.
If the engine fails to start, seek the
assistance of a workshop.
Starting the engine 3 135.
Wiper blade replacement
Wiper blades on the windscreen
Before replacing the wiper blades,
move the wiper lever to the
maintenance position (if equipped).
Windscreen wiper and washer 3 86.
Lift the wiper arm, press button to
disengage the wiper blade and
remove.
Attach new wiper blade slightly
angled to the wiper arm and push until
it engages.
Lower wiper arm carefully.
Wiper blade on the rear window
Lift wiper arm, press retaining lugs
together to disengage the wiper blade
and raise to remove.
Lower wiper arm carefully.
When attaching new wiper blade,
ensure it is engaged securely.
Page 179 of 235
Vehicle care177Bulb replacement
Switch off the ignition and turn off the
relevant switch or close the doors.
Only hold a new bulb at the base. Do not touch the bulb glass with bare
hands.
Use only the same bulb type for
replacement.
Bulb check
After a bulb replacement, switch on
the ignition, operate and check the
lights.
Headlights Low beam and high beam
Replace headlight bulbs from within
the engine compartment.
1. Remove protective cover by rotating it anticlockwise.
2. Detach wiring connector.
3. Release retaining clip (see illustration) and remove bulb.
4. Renew bulb and install retaining clip ensuring that bulb is in correct
orientation.
5. Reattach wiring connector and protective cover.
Sidelights / Daytime running lights
1. Remove protective cover byrotating it anticlockwise.
2. Release retaining clips and remove bulb holder from reflector
housing.
3. Renew bulb.
4. Install bulb holder in reflector housing and engage retaining
clips.
5. Install protective cover.
Page 185 of 235
Vehicle care183Instrument panel
illumination
Have bulbs replaced by a workshop.Electrical system
Fuses Data on the replacement fuse must
match the data on the defective fuse.
There are two fuse boxes in the
vehicle:
● on the left-hand side of the instrument panel, behind the trim
panel
● in the engine compartment located next to the battery
Note
The engine compartment fuse box
should only be accessed by a
workshop.
Before replacing a fuse, turn off the
respective switch and the ignition.
There are different types of fuses in the vehicle.
Depending on the type of fuse, a
blown fuse can be recognised by its
melted wire. Do not replace the fuse
until the cause of the fault has been
remedied.
Page 193 of 235

Vehicle care191PunctureA puncture or severely under-inflated
tyre is indicated by illumination of
control indicator w together with C
3 99 and a corresponding message
appears in the Driver Information
Centre. Stop vehicle and switch off
engine.
Tyre pressure 3 216.
Tyre repair kit 3 193.
Spare wheel 3 197.
Wheel changing 3 196.
Relearn functionAfter a puncture has been repaired
and the driver has inflated the tyres to
the correct tyre pressure, the tyre
pressure monitoring system needs to recalculate.
Tyre pressure 3 216.
Tyre repair kit 3 193.
During driving, select the tyre
pressure menu in the Driver
Information Centre by pressing button
on end of wiper lever. Press and hold button for approx. 5 seconds to
initialise recalculation. A
corresponding message appears in
the Driver Information Centre.
Several minutes of driving at a speed above 40 km/h may be required to
complete the relearn process. The system can only provide limited
information during this time.
If problems occur during the relearn
process, control indicator w remains
illuminated and a warning message is displayed in the Driver Information
Centre.
Driver Information Centre 3 103.
Vehicle messages 3 104.General information
The use of tyre chains or
commercially available liquid tyre
repair kits can impair the function of
the system. Factory-approved tyre
repair kits can be used.
Tyre repair kit 3 193.
Tyre chains 3 192.
External high-power radio equipment
could disrupt the tyre pressure
monitoring system.
Each time the tyres are replaced, the
tyre pressure monitoring system
sensors must be dismounted and
serviced by a workshop.
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.
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194Vehicle care
6. Screw the filler hose to the tyrevalve.
7. The switch on the compressor must be set to O.
8. Connect the electrical connection cable to the power outlet or
cigarette lighter socket.
To avoid discharging the vehicle
battery, we recommend running
the engine.9. Set the rocker switch on the compressor to I. The tyre is filled
with sealant.
10. The compressor pressure gauge briefly indicates up to six bar
(600 kPa/87 psi). Then the
pressure starts to drop.
11. All of the sealant is pumped into the tyre. Then the tyre is inflated.12. The prescribed tyre pressure should be obtained within
15 minutes.
Tyre pressure 3 216.
When the correct pressure is
obtained, switch off the
compressor.
If the prescribed tyre pressure is
not obtained within 15 minutes,
remove the tyre repair kit. Move
the vehicle one tyre rotation
(approx. 2 m). Reattach the tyre
repair kit and continue the filling
procedure for 15 minutes. If the
prescribed tyre pressure is still not
obtained, the tyre is too badly
Page 198 of 235

196Vehicle careWheel changingSome vehicles are equipped with a
tyre repair kit instead of a spare wheel
3 193.
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 parking brake and engage first gear or reverse gear.
● Remove the spare wheel 3 197.
● Never change more than one wheel at a time.
● Use the jack only to change wheels in case of puncture, not
for a seasonal winter or summer
tyre change.
● The jack is maintenance-free.
● If the ground on which the vehicle
is standing is soft, a solid board
(max. 1 cm thick) should be
placed under the jack.
● Remove heavy objects out of the
vehicle before jacking up.● 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 the vehicle is raised on the jack.
● Clean wheel bolts / nuts and thread with a clean cloth before
mounting the wheel.9 Warning
Do not grease wheel bolt, wheel
nut and wheel nut cone.
1. Remove the wheel cover (using the hook supplied).
Vehicle tools 3 187.
2. Loosen each of the wheel bolts by
half a turn using the wheel
wrench. Ensure the wrench is
securely located. The wrench
should turn anticlockwise to
loosen the bolts. Invert the wrench if necessary.