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226Vehicle careWasher fluid
Fill with clean water mixed with a
suitable quantity of windscreen
washer fluid which contains
antifreeze.
Caution
Only washer fluid with a sufficient
antifreeze concentration provides
protection at low temperatures or
a sudden drop in temperature.
Brakes
In the event of minimum thickness ofthe brake lining, a squealing noise
sounds during braking.
Continued driving is possible but
have the brake lining replaced as
soon as possible.
Once new brake linings are installed,
do not brake unnecessarily hard for
the first few journeys.
Brake fluid9 Warning
Brake fluid is poisonous and
corrosive. Avoid contact with eyes, skin, fabrics and painted surfaces.
The brake fluid level must be betweenthe MIN and MAX marks.
If fluid level is below MIN seek the
assistance of a workshop.
Brake and clutch fluid 3 282.
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 battery which is not a lead acid
battery.
Page 242 of 329
240Vehicle care
7. Remove and replace the bulb bywithdrawing or pushing the bulb
slightly into the socket and rotating anticlockwise:
Tail light ( 1)
Brake light ( 2)
Turn signal light ( 3)
8. Insert the bulb carrier into the tail light assembly and screw into
place. Connect the wiring plug
and press the cable into the
retainer. Fit light assembly with
the retaining pins into the
recesses of the car body and
tighten the securing nut from the
inside of the load compartment.
Close the cover and engage.
Light assembly in the tailgate
1. Open the tailgate and remove the
cover and both blind cover on the
respective side.
2. Unscrew and remove three screws.
3. Remove the light assembly. Make
sure that the cable duct remains in
position.
4. Press the retaining lug and remove the bulb carrier from the
light assembly.
Page 243 of 329
Vehicle care241
5. Remove and replace the bulb bywithdrawing or pushing the bulb
slightly into the socket and
rotating anticlockwise:
Tail light ( 1)
Rear fog light/Reverse light ( 2),
depending on the side.
6. Insert the bulb carrier into the tail light assembly. Fit light assembly
on the tailgate and tighten the
screws from the inside. Attach all
covers.
4-door saloon1. Remove cover on the responding side.
2.Unscrew two plastic securing nuts
from the inside by hand.
3. Carefully withdraw tail light assembly from recesses and
remove. Make sure that the cable duct remains in position.
4. Detach wiring plug from bulb carrier.
5. Remove the bulb holder by turning and replace the bulb by
withdrawing or pushing the bulb
slightly into the socket and rotating anticlockwise:
Tail light/Brake light ( 1)
Page 245 of 329
Vehicle care243
2. Remove cover on the respectiveside.
3. Unscrew two plastic securing nuts
from the inside by hand.
4. Carefully withdraw tail light assembly from recesses and
remove. Make sure that the cable duct remains in position.
5. Detach wiring plug from bulb carrier.
6. Remove the bulb holder by turning anticlockwise and replace
the bulb by withdrawing or
pushing the bulb slightly into the
socket and rotating anticlockwise:
Tail lights ( 1 + 2)
Turn signal light ( 3)
Brake light ( 4)
7. Connect the wiring plug and press
the cable into the retainer. Fit light assembly with the retaining pins
into the recesses of the car body
and tighten the securing nuts from
the inside of the load
compartment. Attach cover.
When assembling press the blind
on the left-hand side into the
rubber grommets to reach full
retention force.
Page 247 of 329
Vehicle care245
3-door hatchback
1. Release the cover on therespective side and remove it.
2. Unscrew both plastic securingnuts from the inside by hand.
3. Carefully withdraw the light assembly from the recesses and
remove.
4. Detach wiring plug from bulb carrier.
5. Remove the bulb holder by turning and replace the bulb by
withdrawing or pushing the bulb
slightly into the socket and rotating anticlockwise:
Tail light/Brake light ( 1)
Turn signal light ( 2)
version with Light Emitting Diode
(LED)
Page 253 of 329

Vehicle care251
No.Circuit15Engine control module16Starter17Transmission control module18Heated rear window19Front power windows20Rear power windows21Rear electrical centre22Left high beam (Halogen)23Headlamp washer system24Right low beam (Xenon)25Left low beam (Xenon)26Front fog lights27Diesel fuel heating28Start stop system29Electric parking brake30ABS31Adaptive cruise controlNo.Circuit32Airbag33Adaptive forward lighting, auto‐
matic light control34Exhaust gas recirculation35Exterior mirror, rain sensor36Climate control37Canister vent solenoid38Vacuum pump39Central control module40Windscreen washer, rear
window washer system41Right high beam (Halogen)42Radiator fan43Windscreen wiper44Windscreen wiper45Radiator fan46–No.Circuit47Horn48Radiator fan49Fuel pump50Headlamp levelling, adaptive
forward lighting51Air shutter52Auxiliary heater, diesel engine53Transmission control module,
engine control module54Vacuum pump, instrument
panel cluster, heating ventila‐
tion, air conditioning system
After having changed defective fuses,
close the fuse box cover and press
until it engages.
If the fuse box cover is not closed
correctly, malfunction may occur.
Page 263 of 329

Vehicle care261Tread 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 periodically. 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.
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.
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262Vehicle care
Vehicles with steel wheels: When
using locking wheel nuts, the wheel
covers might not be attached to the
steel wheels.
Tyre chains
Use tyre chains only on front wheels.
9 Warning
Damage may lead to tyre blowout.
5-door hatchback, 4-door saloon,
Sports tourer
Always use fine mesh chains that add no more than 10 mm to the tyre tread
and the inboard sides (including chain
lock).
Tyre chains are only permitted on
tyres of size 205/60 R 16 and
215/50 R 17.3-door hatchback
Tyre chains are permitted on tyres of
size 225/55 R 17. Always use fine
mesh chains that add no more than
10 mm to the tyre tread and the
inboard sides (including chain lock).
Tyre chains are also permitted on
tyres of size 245/45 R 18. Always use fine mesh chains that add no more
than 7 mm to the tyre tread and the inboard sides (including chain lock).VXR Version
Tyre chains are permitted on tyres of
size 235/45 R 18. Always use fine
mesh chains that add no more than
10 mm to the tyre tread and the
inboard sides (including chain lock).General
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 sidewall 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.