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Vehicle care181
The brake fluid level must be betweenthe MIN and the MAX marks.
If fluid level is below MIN seek the
assistance of a workshop.
Brake and clutch fluid 3 217.
Vehicle 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 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
four 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.
Vehicle battery discharge protection
3 121.
Replacing the vehicle battery Note
Any deviation from the instructions
given in this section may lead to
temporary deactivation or
disturbance of the stop-start system.
When the vehicle battery is being
replaced, please ensure that there
are no open ventilation holes in the
vicinity of the positive terminal. If a
ventilation hole is open in this area, it
must be closed off with a dummy cap,
and the ventilation in the vicinity of the negative terminal must be opened.
Only use vehicle batteries that allow the fuse box to be mounted above the
vehicle battery.
Ensure that the battery is always replaced by the same type of battery.
We recommend that you have the
vehicle battery replaced by a
workshop.
Stop-start system 3 134.
Charging the vehicle battery9 Warning
On vehicles with stop-start
system, ensure that the charging
potential does not exceed 14.6 V
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182Vehicle carewhen using a battery charger.
Otherwise the vehicle battery may be damaged.
Jump starting 3 209.
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 containssulphuric 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 system bleeding If the tank has been run dry, the diesel
fuel system must be bled. Switch on
the ignition three times for
15 seconds at a time. Then crank the
engine for a maximum of 40 seconds. Repeat this process after
no less than 5 seconds. If the engine fails to start, seek the assistance of a
workshop.Wiper blade replacement
Windscreen
Lift the wiper arm, press button to
disengage the wiper blade and
remove.
Attach the wiper blade slightly angled
to the wiper arm and push until it
engages.
Lower wiper arm carefully.
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Vehicle care183Rear window
1. Remove the wiper cover from thewiper assembly.
2. Lift wiper blade.
3. Press slider holder pin.
4. Pull wiper blade out.Bulb 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.
Replace headlight bulbs from within
the engine compartment.
Note
After driving in heavy rain or after
washing, some exterior light lenses
could appear frosty.
This condition is caused by the
temperature difference between the
inside and outside of the light.
This is similar to the condensation
on your windows inside your vehicle
during the rain and doesn't indicate
a problem with your vehicle.
If the water leaks into the light bulb
circuitry, have the vehicle checked
by your authorised workshop.
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Vehicle care187
3. Tail / stop light, if not equippedwith LEDs (1)
Turn light (2)
Back-up light (3)
4. Remove bulb holder. Remove and renew bulb.
5. Insert bulb holder into the tail light
assembly. Install tail light
assembly in body and tighten.
Close covers and engage.
6. Switch on ignition, operate and check all lights.
Number plate light
1. Prise the light out with a screwdriver.
2. Remove bulb housing downwards, taking care not to pull
on the cable.
Rotate bulb holder anticlockwise
to disengage.
3. Remove bulb from holder and renew bulb.
4. Insert bulb holder in bulb housing and rotate clockwise.
5. Insert bulb housing and secure using a screwdriver.
Rear fog light
The bulbs are accessible from the
underside of the vehicle.
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188Vehicle care
1.Turn the bulb holder anticlockwise
and remove it from reflector.
2. Disengage the bulb socket from the plug connector by pressing
the retaining lug.
3. Remove and replace the bulb socket with bulb and attach the
plug connector.
4. Insert the bulb socket into the reflector and turn clockwise to
engage.Electrical system
Fuses
Data on the replacement fuse must
match the data on the defective fuse.
In a box above the positive terminal of
the battery are some main fuses. If
necessary have them changed by a workshop.
Before replacing a fuse, turn off the
respective switch and the ignition.
A blown fuse can be recognised by its melted wire. Do not replace the fuse
until the cause of the fault has been
remedied.
Some functions are protected by
several fuses.
Fuses may also be inserted without existence of a function.
Note
Not all fuse box descriptions in this
manual may apply to your vehicle.
When inspecting the fuse box, refer
to the fuse box label.
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190Vehicle careNo.Circuit15LPG module / Fuel system
control module16Seat heating17Transmission control module R/ C / Water pump / Auxiliary
heater18Engine control module R/C19Fuel pump20–21Cooling fan22–23Ignition coil / Injectors24Washer pump25Headlamp actuator26Engine control sensors27–28Ignition29Ignition 1/2No.Circuit30Exhaust system31Left-hand high beam32Right-hand high beam33Engine control module34Horn35Air conditioning system36Front fog light
J-cases Fuses
No.Circuit1Electrical brake control module2Front wiper3Linear power module4Power terminal of instrument
panel fuse box5–6Fuel heater7StarterNo.Circuit8Cooling fan9Cooling fan10Engine control module / Glow
plug11Starter
Instrument panel fuse box
In left-hand drive vehicles, the interior fuse box is located on the underside
of the driver's side instrument panel.
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Vehicle care191To access the fuses, remove the
storage. To remove the storage, open
and pull it.
In right-hand drive vehicles, the
interior fuse box is located behind a
cover in the glovebox on the
passenger side. To access the fuses, open the glovebox, then open the
cover, fold it down and pull it.
Mini FusesNo.Circuit1Body control module2Body control module3Body control module4Body control module5Body control module6Body control module7Body control module8Body control module9Ignition switch10Safety diagnosis module11Data link connector12Climate control13Tailgate14Central gateway module15Lane departure warning / Inte‐
rior mirror
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198Vehicle careIf the tyre pressure must be reduced
or increased, switch off ignition.
Only mount wheels with pressure
sensors, otherwise the tyre pressure
will not be displayed and w
illuminates continuously.
A spare wheel or temporary spare
wheel is not equipped with pressure
sensors. The tyre pressure
monitoring system is not operational
for these tyres. Control indicator w
illuminates. For the further three
tyres, the system remains
operational.
The use of commercially-available
liquid tyre repair kits can impair the
function of the system. Factory-
approved repair kits can be used.
Operating electronic devices or being close to facilities using similar wave
frequencies could disrupt the tyre
pressure monitoring system.
Each time the tyres are replaced, tyre
pressure monitoring system sensors
must be dismounted and serviced. For the screwed sensor, replace
valve core and sealing ring. For the
clipped sensor, replace complete
valve stem.Vehicle loading status
Adjust tyre pressure to load condition according to tyre information label or
tyre pressure chart 3 230, and select
the appropriate setting in the menu
Tyre Load in the Driver Information
Centre, Vehicle Information Menu
3 97. This setting is the reference for
the tyre pressure warnings.
The Tyre load menu only appears
when the vehicle is at a standstill and the parking brake is applied. On
vehicles with automatic transmission
the selector lever must be in P.
Midlevel display:Select the Tyre load page under the
Vehicle Information Menu ? in the
Driver Information Centre 3 97.
● Light for comfort pressure up to
three people.
● Eco for Eco pressure up to three
people.
● Max for full loading.
Uplevel display:
Select the Tyre load page under the
Options Menu in the Driver
Information Centre 3 97.