Page 174 of 237
172Vehicle careBulb replacement
Switch off the ignition and switch 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.
Halogen headlightsHeadlights have separate systems for low beam 1 (outer bulbs) and high
beam 2 (inner bulbs).
Low beam
1. Rotate the cap 1 anticlockwise
and remove it.
2. Push the bulb holder upwards and
withdraw the bulb holder from the
reflector.
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178Vehicle care
5.Unlatch the four retaining lugs and
remove the bulb carrier.
6. Remove and replace the bulb.
Tail light and brake light ( 1)
Tail light ( 2)
Turn signal light ( 3)
Version with Light Emitting Diode (LED):
Only brake light ( 1) and turn signal
light ( 2) can be changed.
7. Insert the bulb carrier into the tail light assembly. Connect the
wiring plug. Fit light assembly
onto retaining pins and tighten the securing nuts. Close the cover
and engage.
8. Switch on the ignition, operate and check all lights.
Tail lights in the tailgate frame
1. Open the tailgate and remove the
cover with a screwdriver.
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Vehicle care179
2. Press the retaining lug andremove the bulb carrier
downwards.
3. To replace the reverse light bulb (1 ), remove and replace the bulb.
To replace the tail light/rear fog
light bulb ( 2), push the bulb
slightly into the socket, rotate
anticlockwise, remove and
replace the bulb.
4. Insert the bulb carrier into the retainer.
5. Attach the cover.
6. Switch on the ignition, operate and check all lights.
For replacing the tail light bulb and
reverse light bulb on the right side of
the tailgate frame, proceed in the
same way.
Version with Light Emitting Diode
(LED):
Only the reverse light bulb can be
changed.
1. Open the tailgate and remove the
cover with a screwdriver.
2. Rotate the bulb holder anticlockwise to disengage.
Withdraw the bulb holder.
3. To replace the reverse light bulb, push the bulb slightly into the
socket, rotate anticlockwise,
remove and replace the bulb.
4. Insert bulb holder and turn clockwise.
5. Attach the cover.
Page 184 of 237

182Vehicle care
3. Rotate the bulb holder clockwiseand remove.
4. Pull the bulb out of the bulb holder
and replace it.
5. Insert the bulb holder into the housing and turn it anticlockwise.
6. Plug in the connector.
7. Attach the housing.
Instrument 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 three fuse boxes in the
vehicle:
■ in the front left of the engine compartment,
■ In left-hand drive vehicles, in the interior behind the storage
compartment, or, in right-hand
drive vehicles, behind the
glovebox,
■ behind a cover on the left side of the
load compartment.
Before replacing a fuse, turn off the
respective switch and the ignition.
A blown fuse can be recognized 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.
Fuse extractor
A fuse extractor may be located in the fuse box in the engine compartment.
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184Vehicle care
No.Circuit1Starter2–3Fuel filter, cooling4Horn5Terminal 306Engine control module, trans‐
mission control unit7Fog light8Engine cooling9Engine cooling10Vacuum pump11Ignition, preheating12Headlamp levelling13Air conditioning system,
terminal 1514Transmission control unit15High beam rightNo.Circuit16High beam left17Engine control module18Engine control module,
terminal 1519Airbag20Engine control module21Engine control module,
terminal 87
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186Vehicle care
In right-hand drive vehicles, the fuse
box is located behind a cover in the
glovebox. Open the glovebox, pull
cover upwards and remove.
No.Circuit1Radio2Display, instrument, telephone3Radio4Ignition switch, immobiliser5Windscreen washer, rear
screen washer6Central locking system, tailgate7Central locking system8Display, instrument, telephone9Heated steering wheel10Rear left door unlocking11Rear right door unlocking12Courtesy light13Rain sensor, interior mirror,
outside mirrors14–Load compartment fuse
box
The fuse box is on the left side of the
load compartment behind a cover.
Remove the cover.
Page 192 of 237

190Vehicle care
Tyre pressures differ depending onvarious options. For the correct tyre
pressure value, follow the procedure
below:
1. Identify the engine identifier code.
Engine data 3 215.
2. Identify the respective tyre.
The tyre pressure tables show all possible tyre combinations 3 224.
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 must be reduced
or increased on a vehicle with tyre
pressure monitoring system, switch
off ignition.
Tyre deflation detection system The tyre deflation detection system
continually checks the rotation speed
of all four tyres.
If a tyre loses pressure the control
indicator w illuminates yellow and a
warning message is displayed in the
Driver Information Centre with
Uplevel-Display. Stop immediately
and check tyre pressure.
Control indicator w 3 97.
System initialisation After tyre pressure correction or
wheel change, the system must be
initiated:
1. Apply electrical parking brake.
2. Press the MENU button to select
the Vehicle Information Menu .3. Turn the adjuster wheel to select
Tire Pressure System .
4. Press the SET/CLR button to
select the reset of the system.
On vehicles with Midlevel- Display, make a longer press on
the SET/CLR button to start the
initialisation of the system.
5. On vehicles with Uplevel-Display, the selection is confirmed by a
pop-up indication. Confirm to start
the initialisation of the system.
Selection and indication can be
different between Midlevel-Display
and Uplevel-Display.
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Vehicle care193
1. Take the sealant bottle andbracket with air hose from the
insert.
2. Detach air hose from bracket and screw onto sealant bottle
connection.
3. Position the sealant bottle on the bracket. Make sure that the bottle
does not fall.
4. Unscrew valve cap from defective
tyre.
5. Screw tyre inflation hose to valve.
6. Screw air hose onto compressor connection.
7. Switch on ignition. To avoid discharging the vehicle
battery, we recommend running
the engine.