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Vehicle care239
3. Carefully withdraw the lightassembly from the recesses and
remove.
4. Turn bulb holder anticlockwise and remove. Replace bulb by
withdrawing:
Reverse light 1
Turn signal light 2
Tail light, brake light and rear fog
light are designed as LEDs. In
case of failure, have LEDs
replaced by a workshop.
5. Insert bulb holder into the tail light
assembly and turn clockwise. Fit
light assembly with the retaining
pins into the recesses of the
tailgate and tighten the plastic
securing nuts from the inside of
the tailgate. Close cover.
Additional tail lights in the tailgate
frame
1. Open tailgate.
2. Release cover in side trim panel and remove.
3. Press out lamp housing from theinside of the side trim panel.
4. Rotate plastic nut anticlockwiseand remove from the bulb holder.
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240Vehicle care
5. Push bulb into socket slightly,rotate anticlockwise, remove and
renew bulb. Insert plastic nut into
bulb holder by rotating clockwise.
Tail light ( 1)
Turn signal light ( 2)
6. Insert bulb holder into the tailgate frame. Close cover in the side trimpanel.
Side turn signal lights
To replace bulb, remove lamp
housing:
1. Slide lamp to its left side and remove with its right end.
2. Turn bulb holder anticlockwiseand remove from housing.
3. Pull bulb from bulb holder and replace it.
4. Insert bulb holder and turnclockwise.
5. Insert left end of the lamp, slide to
the left and insert right end.
Number plate light
1. Insert screwdriver in bulb housing, press to the side and
release spring.
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Vehicle care241
2. Remove lamp downwards, takingcare not to pull on the cable.
3. Remove bulb holder from lamphousing by turning anticlockwise.
4. Pull bulb from bulb holder andreplace it.
5. Insert bulb holder into lamp housing and turn clockwise.
6. Insert lamp into bumper and let engage.
Interior lights Courtesy light, reading lights
Have bulbs replaced by a workshop.
Load compartment light
1. Prise the lamp out with a screwdriver.
2.Press bulb slightly towards spring
clip and remove.
3. Insert new bulb.
4. Install lamp.
Instrument panel
illumination
Have bulbs replaced by a workshop.
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Vehicle care245
No.Circuit46Terminal 87/Main relay47Lambda probe48Fog lights49Right low beam50Left low beam51Horn52Ignition53Ignition/Ventilated front seats54Ignition55Power windows/Mirror folding56Windscreen washer57–58–59Diesel fuel heating/Emission
control system60Mirror heating61Mirror heatingNo.Circuit62–63Rear window sensor64Adaptive forward lighting65Auxiliary pump (only on vehicles
with stop-start system)66Rear window washer system67Fuel system control module68–69Vehicle battery sensor70Rain sensor71Vehicle battery sensor
After changing of defective fuses,
close the fuse box cover and press
until it engages.
If the fuse box cover is not closed
correctly, malfunctions may occur.
Instrument panel fuse box
In left-hand drive vehicles, the fuse
box is behind the storage
compartment in the instrument panel.
Open compartment, compress the
locking tabs, fold compartment down and remove.
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246Vehicle care
In right-hand drive vehicles, the fuse
box is located behind a cover in the
glovebox. Open the glovebox and
remove the cover.
No.Circuit1Infotainment system/Info
display2Body control unit3Body control unit4Infotainment system/Info
display5Infotainment system/Info
display6Cigarette lighter7Power outlet8Body control unit9Body control unit10Body control unit11Interior fan12–13–14Diagnostic connector15AirbagNo.Circuit16Central locking system/Tailgate17Air conditioning system18Transportation fuse19Memory20–21Instrument22Ignition23Body control unit24Body control unit25–26Power outlet load compartment
Power seats, No's. 12 and 13, have
an overload protection. The circuit will
be closed again after cooling down.
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Vehicle care247Load compartment fuse
box
The fuse box is on the left side of the
load compartment behind a cover.
Remove the cover.
No.Circuit1Central locking system/Power
tailgate2Trailer module3–4–5Trailer socket6Steering wheel heating7Selective catalytic reduction
system8Trailer socket9Sunroof10Central locking system/Tailgate11–12Selective catalytic reduction
system13–14–15Power tailgate lock
Page 255 of 331

Vehicle care253
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 periodically. Ensure that
the direction of rotation of the wheels
remains the same.
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.
Wheel covers
Wheel 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.
Vehicles with steel wheels: When
using locking wheel nuts, do not
attach wheel covers.
Wheel caps
Tyres of size 245/35 R20 have a
specific wheel cap. To remove the
cap from the dismantled wheel, first
disengage the arms one by one. Then press the cap in the middle area from behind and remove it.
To assemble, first adjust the wheel
cap in order that the positioning leg fits into the recess.
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254Vehicle careTyre chains
Tyre chains are only permitted on the
front wheels.
Always use fine mesh chains that add no more than 10 mm to the tyre tread
and the inboard sides (including chain lock).
9 Warning
Damage may lead to tyre blowout.
5-door Hatchback, 4-door Saloon,
Sports Tourer
Tyre chains are only permitted on
tyres of size 205/60 R16, 215/60 R16 ,
225/55 R17, 225/45 R18,
225/50 R17 and 235/45 R18.
Country Tourer
Tyre chains are only permitted on
tyres of size 235/45 R18.
Temporary spare wheel
The use of tyre chains is not permitted on the temporary spare wheel.
Tyre repair kit
Minor damage to the tyre tread 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 tyre's side wall cannot be
repaired with the tyre repair kit.9 Warning
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 parking brake and engage
first gear, reverse gear or P.
The tyre repair kit is in a compartment
under the floor cover in the load
compartment.