309
Wheels and tyres
Changing a wheel* Introduction
The tyres mounted on the vehicle are anti-puncture. The wheels should only
be changed when switching from summer to winter tyres or vice-versa. See
⇒ page 302
You should only change the wheels yourself if the vehicle is parked in a safe
place, you are familiar with the procedure and you have all the necessary
tools! Otherwise, you should seek professional assistance.
Additional information and warnings:
● Vehicle key set ⇒ page 71
● Wheels and tyres ⇒ page 296
● Wheel trims ⇒ page 307
● Vehicle tools ⇒ page 323
WARNING
Changing a wheel can be dangerous, especially on the hard shoulder.
Please observe the following rules to minimise the risk of injury:
● Stop the vehicle safely as soon as possible. Park your vehicle as safe
distance from surrounding traffic to change a wheel.
● When changing a wheel, keep all passengers and particularly chil-
dren a safe distance away from the work area.
● Turn on the hazard warning lights to warn other road users.
● Ensure the ground on which you park is flat and solid. If necessary,
support the jack on a wide solid base.
● If you are changing a wheel yourself, you should be familiar with the
required procedure. Otherwise, you should seek professional assistance.
WARNING (Continued)
● Only use suitable tools that are not damaged when changing a wheel.
● Always stop the engine, turn on the electronic parking brake and
place the gear selector lever in position P, for an automatic gearbox, or
engage a gear for a manual gearbox to reduce the risk of the vehicle mov-
ing accidentally.
● Have the tightening torque of the wheel bolts checked as soon as
possible with a reliable torque wrench.
Preparations for changing a wheel
Check list
Before changing a wheel, complete the following operations in the order
given ⇒
:
Park the vehicle on an even and solid surface.
Connect the electronic parking brake ⇒ page 184.
Automatic gearbox: move the selector lever to position P ⇒ page 175.
Stop the engine and remove the key from the ignition ⇒ page 171.
Manual gearbox: Select a gear ⇒ page 175.
Have all vehicle occupants get out of the vehicle and wait in a safe
place (for example, behind the safety barrier).
Block the opposite wheel with wedges or a similar object.
When towing a trailer: unhook the trailer from the towing vehicle and
park it correctly.
If the luggage compartment is full: take the baggage out of the vehicle. Take the vehicle tool kit out of the luggage compartment.
Remove the wheel trims ⇒ page 307.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
Safety FirstOperating instructionsPractical tipsTechnical Specifications
316If and when
Move the selector lever to its intermediate position or to P ⇒ page 175.
Stop the engine and remove the key from the ignition ⇒ page 171.
Have all occupants leave the vehicle and move to safety, for example
behind a guard rail.
When leaving the vehicle, take all keys with you.
Place an emergency warning triangle to indicate the position of your ve-
hicle to other road users.
Allow the engine to cool and check if a specialist is required.
Examples of when to use the hazard warning lights:
● If the vehicles ahead suddenly slow down or reach the end of a traffic
jam, to warn the vehicles behind.
● In case of an emergency.
● If the vehicle breaks down.
● When being towed.
Always comply with the applicable laws regarding the use of hazard warn-
ing lights.
If the hazard warning lights are not working, you must use an alternative
method of drawing attention to your vehicle. This method must comply with
traffic legislation.
WARNING
Failure to follow the checklist prepared for your own safety could lead to
accidents and severe injuries.
● Always complete the operations given in the checklist and observe
the general rules of safety.
4.
5.
6.
7.
8.
9.WARNING
The components of the exhaust system reach very high temperatures.
This could cause a fire and considerable damage.
● Always park your vehicle so that no part of the exhaust system can
come in contact with flammable materials (such as dried grass or fuel).
Note
● The vehicle battery will discharge and run down if the hazard warning
lights remain on for too much time (even with the ignition turned off).
● For some vehicles, the brake lights will blink when braking suddenly at
speeds of approximately 80 km/h (50 mph) to warn vehicles behind. If brak-
ing continues, then the hazard warning lights will automatically be turned
on at the speed of less than approximately 10 km an hour (6 mph). The
brake lights remain lit. Upon accelerating, the hazard warning lights will be
automatically turned off.
325
If and when
Fuses
Introduction
Due to the constant update of vehicles, fuse assignments depending on
equipment and the use of the same fuse for various electrical components,
at the time of printing this manual it is not possible to provide an up-to-date
summary of the electrical components fuse positions. For detailed informa-
tion about the fuse positions, please consult a Technical Service.
In general, a fuse can be assigned to various electrical components. Like-
wise, an electrical component can be protected by several fuses.
Only replace fuses when the cause of the problem has been solved. If a
newly inserted fuse blows after a short time, you must have the electrical
system checked by a specialised workshop as soon as possible.
Additional information and warnings:
● Working in the engine compartment ⇒ page 278
WARNING
The high voltages in the electrical system can give serious electrical
shocks, causing burns and even death!
● Never touch the electrical wiring of the ignition system.
● Take care not to cause short circuits in the electrical system.
WARNING
Using unsuitable fuses, repairing fuses or bridging a current circuit with-
out fuses can cause a fire and serious injury.
● Never use a fuse with a higher value. Only replace fuses with a fuse of
the same amperage (same colour and markings) and size.
● Never repair a fuse.
● Never replace a fuse by a metal strip, staple or similar.
CAUTION
● To avoid damage to the vehicles electric system, before replacing a fuse
turn off the ignition, the lights and all electrical elements and remove the
keys from the ignition.
● If you replace a fuse with higher-rating fuse, you could cause damage to
another part of the electrical system.
● Protect the fuse boxes when open to avoid the entry of dust or humidity.
Dirt and humidity inside fuse boxes can cause damage to the electrical sys-
tem.
Note
● One single consumer could have more than one fuse.
● Several consumers could run over one single fuse.
Safety FirstOperating instructionsPractical tipsTechnical Specifications
330If and when
Several warning and control lamps should light up for a few seconds when
the ignition is switched on, signalling that the function is being verified.
They will switch off after a few seconds.
Checking the bulbs of a trailer
For vehicles with the factory fitted towing bracket, certain trailer lights are
also controlled if the power socket is correctly connected.
A fault on a trailer turn signal is indicated on the instrument panel by the
turn signal blinking twice as fast ( or ) ⇒ page 95.
● General fault of all turn signals on one side.
● Fault in one tail light (on some models, also the registration light).
● Fault in two brake lights.
WARNING
If the warning lamps and messages are ignored, the vehicle may stall in
traffic, or may cause accidents and severe injuries.
● Never ignore the warning lamps or text messages.
● Stop the vehicle safely as soon as possible.
CAUTION
Failure to heed the control lamps and text messages when they appear may
result in faults in the vehicle.
Note
A fault in the LED on the tail lights will not be indicated. However, if the fault
affects all the LEDs then this will be indicated by the control lamp . Information for replacing bulbs
Checklist
To replace a bulb, carry out the following operations always in the order giv-
en ⇒
:
Park the vehicle a safe distance from traffic and on suitable ground.
Connect the electronic parking brake ⇒ page 184.
Turn the light switch to position 0 ⇒ page 95.
Move the gear lever into the neutral position ⇒ page 95.
Automatic gearbox: move the selector lever to position P ⇒ page 175.
Stop the engine and remove the key from the ignition ⇒ page 171.
Manual gearbox: Select a gear ⇒ page 175.
Wait until all of the vehicle interior lights are turned off ⇒ page 95.
Allow the corresponding bulb to cool. Visually inspect fuses to see if any are blown ⇒ page 325.
Replace the bulb according to the instructions ⇒
. Bulbs should only
be replaced by new identical models. Bulb information is displayed on
the bulb socket or on the bulb itself.
In general, never touch the bulb glass directly. The heat of the bulb
would cause the fingerprint to evaporate and condense on the reflector.
This will impair the brightness of the headlight.
Check if the new bulb is working. If the bulb is not working, it may not
have been correctly fitted, it could be damaged or the connector may
not be correctly connected.
Every time a bulb for the headlights is replaced, visit a specialised
workshop to check the headlights.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
331
If and when
WARNING
Failure to follow the checklist prepared for your own safety could lead to
accidents and severe injuries.
● Always complete the operations given in the checklist and observe
the general rules of safety.CAUTION
Always remove and fit headlights carefully to avoid damage to the paint-
work and other vehicle parts.
To replace halogen headlight bulbs
Fig. 205 In the engine
compartment: Left-hand
side headlight lining. A
dipped beam headlights,
B daytime driving lights
and C main beam head-
lights and side lightsFig. 206 Left headlight
There is no need to remove the headlight to replace bulbs.
Complete operations only in the sequence given:
Fig. 205, Fig. 206 ABCTurn signals (small lamp holder)Dipped beam head-lightsDaytime driving lightMain beam headlightsSide lights
1.Always take the checklist into account and take the necessary actions ⇒ page 330.2.Open the bonnet ⇒ page 278.
Safety FirstOperating instructionsPractical tipsTechnical Specifications
333
If and when
To replace the xenon headlights bulb
Fig. 207 In the engine
compartment: Turn signal
cover
Fig. 208 Turn signal
lamp holder 1 and turn-
ing light 2
There is no need to remove the headlight to replace bulbs.
Complete operations only in the sequence given:
Turn signals 1Turning lights 2
1.Always take the checklist into account and take the necessary ac-
tions ⇒ page 330.
2.Open the bonnet ⇒ page 278.
3.Rotate the cover ⇒ Fig. 207 in the direction of the arrow and remove
it.
4.
Rotate the lamp holder 1⇒ Fig. 208 to the left all the way
and pull it out backwards with
the bulb.Press the wire clip downwards
and pull the lamp holder 2
⇒ Fig. 208 out with the bulb.
5.Depending on the model, the bulb is removed directly from the
lamp holder or it may need to be rotated and then removed.
6.Replace the faulty bulb by a new identical bulb.
7.Place the bulb holder in the
headlight and rotate to the right
all the way.Place the lamp holder in the
headlight and pull the wire clip
upwards until it clicks into place.
8.Rotate the cover ⇒ Fig. 207 in the opposite direction to the arrow as
far as it will go.
Always seek the help of a specialist when changing the Xenon dipped beam
and main beam headlamps ⇒ in Introduction on page 329.
Note
The illustrations show the left hand headlight. The structure of the right
hand side headlight is symmetric.
Safety FirstOperating instructionsPractical tipsTechnical Specifications
Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184Brake servo . . . . . . . . . . . . . . . . . . . . . . . . . 188
Electronic parking brake . . . . . . . . . . . . . . 186
Emergency braking function . . . . . . . . . . . 187
Parking brake . . . . . . . . . . . . . . . . . . . . . . . 186
Brake assist systems . . . . . . . . . . . . . . . . . . . . 190
Brake assist system (BAS) . . . . . . . . . . . . . . . . 190
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 192 Specification . . . . . . . . . . . . . . . . . . . . . . . . 193
Brakes Brake assist systems . . . . . . . . . . . . . . . . . 190
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . 192
Brake fluid level . . . . . . . . . . . . . . . . . . . . . 193
Brake pads . . . . . . . . . . . . . . . . . . . . . . . . . 188
Changing the brake fluid . . . . . . . . . . . . . . 193
Control lamp . . . . . . . . . . . . . . . . . . . . . . . . 185
Emergency brake indicator in case of sud-den braking . . . . . . . . . . . . . . . . . . . . . . . 316
Running-in brake pads . . . . . . . . . . . . . . . . 188
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . 185
Brake servo . . . . . . . . . . . . . . . . . . . . . . . . 188, 190
Brake system Malfunction . . . . . . . . . . . . . . . . . . . . . . . . 188
Brake systems . . . . . . . . . . . . . . . . . . . . . . . . . 190
Braking assist . . . . . . . . . . . . . . . . . . . . . . . . . . 190 Brake assist system (BAS) . . . . . . . . . . . . . 190
Breakdown Securing the vehicle . . . . . . . . . . . . . . . . . 315
Bulb fault See changing bulbs . . . . . . . . . . . . . . . . . . 329 C
Card compartments . . . . . . . . . . . . . . . . . . . . . 145
Care See "Care of your vehicle" . . . . . . . . . . . . . 245
Vehicle interior . . . . . . . . . . . . . . . . . . . . . . 252
Care of your vehicle Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Caring for paintwork . . . . . . . . . . . . . . . . . . . . . 250
Carrier system . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Catalytic converter . . . . . . . . . . . . . . . . . . . . . . 232 Control lamp . . . . . . . . . . . . . . . . . . . . . . . . 231
Malfunction . . . . . . . . . . . . . . . . . . . . . . . . 232
CD changer . . . . . . . . . . . . . . . . . . . . . . . . 141, 149
Central locking . . . . . . . . . . . . . . . . . . . . . . . 74, 77 Anti-theft alarm . . . . . . . . . . . . . . . . . . . . . . 78
Locking/unlocking the vehicle . . . . . . . . . . 76
Central locking system After airbag deployment . . . . . . . . . . . . . . . 75
Description . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Opening doors individually . . . . . . . . . . . . . 75
Centre armrest . . . . . . . . . . . . . . . . . . . . . . . . . 126
Changing Windscreen wiper blades . . . . . . . . . . . . . 249
Changing a wheel . . . . . . . . . . . . . . . . . . . . . . 309 Changing a wheel . . . . . . . . . . . . . . . . . . . 314
Preparations . . . . . . . . . . . . . . . . . . . . . . . . 309
Raising the vehicle . . . . . . . . . . . . . . . . . . . 312
Wheel bolts . . . . . . . . . . . . . . . . . . . . . . . . . 310
Changing bulbs . . . . . . . . . . . . . . . . . . . . . . . . 329 Bodywork . . . . . . . . . . . . . . . . . . . . . . . . . . 336
Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
Control lamp . . . . . . . . . . . . . . . . . . . . . . . . 329 Front bumper . . . . . . . . . . . . . . . . . . . . . . . 334
Halogen headlights . . . . . . . . . . . . . . . . . . 331
Initial operations . . . . . . . . . . . . . . . . . . . . 330
Number plate light . . . . . . . . . . . . . . . . . . . 338
Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 335
Sea changing bulbs . . . . . . . . . . . . . . . . . . 329
Tail lights . . . . . . . . . . . . . . . . . . . . . . 335, 336
Xenon headlights . . . . . . . . . . . . . . . . . . . . 333
Changing gear . . . . . . . . . . . . . . . . . . . . . . . . . 175 Automatic gearbox . . . . . . . . . . . . . . . . . . . 179
Engaging gears (manual gearbox) . . . . . . 178
Manual gearbox . . . . . . . . . . . . . . . . . . . . . 178
Manually unlocking the gear selector lever . .322
Selecting gears (automatic gearbox) . . . . 179
Warning and control lamps . . . . . . . . . . . . 176
Changing gears Gear recommendation . . . . . . . . . . . . . . . . 183
Tiptronic . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
Changing the battery of the vehicle key . . . . . . . . . . . . . . . . . . . . . 73
Changing the wheel After changing the wheel . . . . . . . . . . . . . . 314
Checking Tyre pressures . . . . . . . . . . . . . . . . . . . . . . . 301
Checking the oil level . . . . . . . . . . . . . . . . . . . . 284
Check list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Checklist Before working in the engine compart-ment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280
Changing bulbs . . . . . . . . . . . . . . . . . . . . . 330
In case of an emergency . . . . . . . . . . . . . . 315
369
Index
Check listPreparations for changing a wheel . . . . . . 309
Raising the vehicle with the jack . . . . . . . . 313
Checklist Refilling precautions . . . . . . . . . . . . . . . . . 270
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Seat upholstery . . . . . . . . . . . . . . . . . . . . . 253
Transporting children in the vehicle . . . . . . 41
Child safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Child safety seat Securing with seat belt . . . . . . . . . . . . . . . . 45
Child seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Integrated child seat . . . . . . . . . . . . . . . . . . 46
ISOFIX child seat on rear seats . . . . . . . . . . 44
Mounting child seats . . . . . . . . . . . . . . . . . . 42
Mounting systems . . . . . . . . . . . . . . . . . . . . 43
On rear seats . . . . . . . . . . . . . . . . . . . . . . . . 44
On the front passenger seat . . . . . . . . . . . . 43
Regulations . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Securing using a Top Tether retaining strap 46
Securing using ISOFIX . . . . . . . . . . . . . . . . . 45
Securing using LATCH . . . . . . . . . . . . . . . . . 45
Transporting children in the vehicle . . . . . . 41
Weight categories . . . . . . . . . . . . . . . . . . . . 42
Child seats Disabling the front passenger front airbag 36
Cigarette lighter . . . . . . . . . . . . . . . . . . . . 151, 152
Cleaning dash panel . . . . . . . . . . . . . . . . . . . . . . . . . 256
Engine compartment . . . . . . . . . . . . . . . . . 252
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . 257
See "Care of your vehicle" . . . . . . . . . . . . . 245 wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Windscreen wiper blades . . . . . . . . . . . . . 249
Cleaning chrome parts . . . . . . . . . . . . . . . . . . . 250
Cleaning the vehicle Folding exterior mirrors . . . . . . . . . . . . . . . 113
Climatronic see "Air conditioner" . . . . . . . . . . . . . . . . . 156
Closing Doors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Electric sliding door . . . . . . . . . . . . . . . . . . . 81
Electric windows . . . . . . . . . . . . . . . . . . . . . . 89
Panoramic sliding sunroof . . . . . . . . . . . . . . 92
Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
See "Locking" . . . . . . . . . . . . . . . . . . . . . . . . 76
Sliding doors . . . . . . . . . . . . . . . . . . . . . . . . 80
Sun blind . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Coat hooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Cockpit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Code number . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Collection of end-of-life vehicles . . . . . . . . . . . 259
Combined weight rating . . . . . . . . . . . . . . . . . 243
Coming Home . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Compartment Glove compartment . . . . . . . . . . . . . . . . . . 145
Compartments Card compartments . . . . . . . . . . . . . . . . . . 145
Centre console . . . . . . . . . . . . . . . . . . . . . . 144
Drawers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Folding table . . . . . . . . . . . . . . . . . . . . . . . . 147
Front central armrest . . . . . . . . . . . . . . . . . 144
Instrument panel . . . . . . . . . . . . . . . . . . . . 143
Other storage compartments . . . . . . . . . . 148 Portable waste bin . . . . . . . . . . . . . . . . . . . 148
Rear footwell . . . . . . . . . . . . . . . . . . . . . . . . 146
Roof console . . . . . . . . . . . . . . . . . . . . . . . . 143
Spectacle case . . . . . . . . . . . . . . . . . . . . . . 142
Compass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Components . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Connectors Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Consumer disconnection . . . . . . . . . . . . . . . . . 294
Consumption How it is determined . . . . . . . . . . . . . . . . . 273
Information . . . . . . . . . . . . . . . . . . . . . . . . . 273
Control lamp AdBlue . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . 31
Brake pad wear indication . . . . . . . . . . . . . 185
Brake system . . . . . . . . . . . . . . . . . . . . . . . 185
Catalytic converter . . . . . . . . . . . . . . . . . . . 231
Changing bulbs . . . . . . . . . . . . . . . . . . . . . 329
Changing gear . . . . . . . . . . . . . . . . . . . . . . 176
Checking the engine oil level . . . . . . . . . . 282
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 287
Cruise control . . . . . . . . . . . . . . . . . . . . . . . 213
Diesel particulate filter . . . . . . . . . . . . . . . 231
Engine management . . . . . . . . . . . . . . . . . 231
Engine oil sensor . . . . . . . . . . . . . . . . . . . . 282
ESC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Exhaust gas purification system . . . . . . . . 231
Filling the tank . . . . . . . . . . . . . . . . . . . . . . 268
Fuel level . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Lane assist system . . . . . . . . . . . . . . . . . . . 217
Pressing the brake . . . . . . . . . . . . . . . . . . . 185
Steering column lock . . . . . . . . . . . . . . . . . 168
370 Index