If and when257
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Changing a wheelPreparation work
What you must do before changing a wheel.– If you have a flat tyre or puncture, park the vehicle as far away
from the flow of traffic as possible. Choose a location that is as
level as possible.
–All passengers should leave the vehicle. They should wait in a
safe place (e.g. behind the roadside crash barrier).
–Apply the handbrake firmly.
– Engage 1st gear .
– When towing a trailer: Unhitch the trailer from your vehicle.
– Take the tools and the spare wheel ⇒ page 254 out of the
luggage compartment.
WARNING
If you have a puncture in heavy traffic, switch on the hazard warning lights
and place the warning triangle in a visible location. This is for your own
safety and also warns other road users.
Caution
If you have to change the tyre on a gradient, block the wheel opposite the
wheel being changed by placing a stone or similar object under it to prevent
the vehicle from rolling away.
Note
Please observe legal requirements when doing so.Changing a wheel
Change the wheel as described below.– Remove the wheel cover.
–Loosen the wheel bolts ⇒page 258.
– Raise the vehicle with the jack ⇒page 259.
– Ta k e o f f the wheel with the flat tyre and then put on the spare
wheel ⇒page 260.
– Lower the vehicle.
– Tighten the wheel bolts firmly in diagonal sequence with the box
spanner ⇒page 258.
– Replace the cover.After changing a wheel
After changing the wheel, there are still tasks to complete.– Place the wheel with the defective tyre in the spare wheel well
and secure it.
– Put the tools and jack back in the luggage compartment.
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If and when
258
–The inflation pressure of the newly fitted spare tyre must be
checked as soon as possible.
–Have the tightening torque of the wheel bolts checked as soon
as possible with a torque wrench. It must be 120 Nm (always
when cold)
–Have the flat tyre replaced as quickly as possible.
Note•If you notice that the wheel bolts are rusty and difficult to turn when
changing a wheel, they must be replaced before having the tightening torque
checked.•For your safety, drive at moderate speeds until the wheel bolt tightening
torque has been checked.
Loosening and tightening the wheel bolts
The wheel bolts must be loosened before raising the vehicle.Loosening
–Fit the box spanner as far as it will go over the wheel bolt
4).
– Grip the box spanner as close to the end as po ssible an d turn t he
wheel bolts about one turn anti-clockwise ⇒ fig. 193 -arrow- .
Tightening
– Fit the box spanner as far as it will go over the wheel bolt4).
– Grip the box spanner as close to the end as possible and tighten
the bolt firmly by turning clockwise.
4)An adapter is required to unscrew or tighten the anti-theft wheel bolts* ⇒page 261.
Fig. 193 Changing the
wheel: Loosen the wheel
bolts
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If and when
260An unstable surface under the jack may cause the vehicle to slip off the jack.
Therefore, the jack must be fitted on solid ground offering good support. Use
a large, stable base if necessary. On a hard, slippery surface (such as tiles)
use a rubber mat or similar to prevent the jack from slipping.
WARNING
•Take all precautions so that the base of the jack does not slip. Failure to
do so could result in an accident.•The vehicle can be damaged if the jack is not applied at the correct
jacking points. There is also a risk of injury since the jack can slip off
suddenly if it is not properly engaged.
Removing and fitting the wheel
For removal and fitting the wheel, the following tasks must be
completed.
After loosening the wheel bolts and raising the vehicle with the jack,
change the wheel as described below:
Removing a wheel
– Unscrew the bolts using the hexagonal tool in the handle of the
screwdriver (vehicle tool) and place them on a clean surface
⇒ fig. 196 .
Fitting a wheel
– Screw in the wheel bolts and tighten them lightly using the hexagonal socket in the screwdriver handle.The wheel bolts should be clean and easily screwed. Before fitting the spare
wheel, inspect the wheel condition and hub mounting surfaces. These
surfaces must be clean before fitting the wheel.
The hexagonal socket in the screwdriver handle makes it easier to turn the
wheel bolts. The reversible screwdriver blade should be removed when the
tool is used for this purpose.
If tyres with a specific direction of rotation are fitted, note the direction of
rotation.
Note
Do not use the hexagonal socket in the screwdriver handle to loosen or
tighten the wheel bolts.
Fig. 196 Changing the
wheel: Hexagonal socket
in screwdriver handle to
turn the wheel bolts
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If and when261
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Anti-theft wheel bolts*
A special adapter is required to turn the anti-theft wheel
bolts.– Insert the adapter onto the wheel bolt and push it on as far as it
will go ⇒ fig. 197.
– Fit the box spanner as far as it will go over the adapter.
– Loosen or tighten the wheel bolt as appropriate.Code
The code number of the anti-theft wheel bolt is stamped onto the front part of
the adaptor.
The code number should be noted and kept in a safe place, as it is only by
using the code number that a duplicate adaptor can be obtained from an
Authorised Service Centre.
Tyres with directional tread pattern
Tyres with directional tread pattern must be fitted so that they
rotate in the correct direction.A directional tread pattern can be identified by arrows on the sidewall that
point in the direction of rotation. Always note the direction of rotation indi-
cated when fitting the wheel. This is important so that these tyres can give
maximum grip and avoid excessive noise, tread wear and aquaplaning.
If, in an emergency, you have to fit the spare wheel so it rotates in the wrong
direction, you must drive extremely carefully. The tyre will not give optimum
performance. This is particularly important when driving on wet roads.
To benefit from the advantages of tyres with this type of tread pattern, the
defective tyre should be replaced as soon as possible so that all tyres again
rotate in the correct direction.
Fig. 197 Anti-theft wheel
bolt
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Description of specifications
298Vehicle identification data
The most important information is given on the identification
plate and the vehicle data sticker.Vehicles for certain export countries do not have an identification plate.
Identification plate
The identification plate is located on the left rib inside the engine compart-
ment.
Vehicle identification number
The vehicle identification number (chassis number) can be read from outside
the vehicle through a viewer in the windscreen. This is located on the left-
hand side of the vehicle in the lower area of the windscreen. It is also located
on the right hand side of the engine compartment. Vehicle data
The data sticker is placed on the inside of the spare wheel recess in the
luggage compartment.
The following information is provided on the vehicle data sticker:
⇒fig. 247 .
These data are also provided in the Maintenance Programme. Production control number
Vehicle identification number (chassis number)
Model code number
Model designation / engine power output
Engine and gearbox code letters
Paintwork number / interior trim code
Optional equipment codes
Consumption values
CO
2 emissions values
Data from 2 to 9 are also provided in the Maintenance Programme.
Consumption figures and CO
2
Consumption (litres/100 km) / CO
2 emissions (g/km) urban
Consumption (litres/100 km) / CO2 emissions (g/km) motorway
Consumption (litres/100 km) / CO2 emissions (g/km) mixed
Fig. 247 Vehicle data
sticker (luggage compart-
ment)
A1A2A3A4A5A6A7A8A9AAABAC
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Index
320Sliding/tilting sunroof . . . . . . . . . . . . . . . . . . . 112
Automatic close function . . . . . . . . . . . . . . 113
Closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Emergency activation . . . . . . . . . . . . . . . . . 114
Manual operation . . . . . . . . . . . . . . . . . . . . 114
Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Snow chains . . . . . . . . . . . . . . . . . . . . . . . 253, 300
Solar sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Solar-powered blower/sunroof . . . . . . . . . . . . 171
Spare keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Spare wheel Steel rim . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Speed warning . . . . . . . . . . . . . . . . . . . . . . . 81, 82
Speed warning function . . . . . . . . . . . . . . . . . . . 82
Speedometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Steam jets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Steering Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Manual steering wheel adjustment . . . . . . 172
Steering wheel controls . . . . . . . . . . . . . . . . . . . 91
Stopping the engine . . . . . . . . . . . . . . . . . . . . . 175
Sun visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Switches in the driver door Electric windows . . . . . . . . . . . . . . . . . . . . . 110
Symbols Red symbols in central display . . . . . . . . . . 77
Yellow symbols in central display . . . . . . . . 79
TTailgateCentral locking system . . . . . . . . . . . . . . . . 103
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
TCS How the system works . . . . . . . . . . . . . . . . 194
Technical modifications . . . . . . . . . . . . . . . . . . 223
The danger of not using the seat belt . . . . . . . . 20
The environment Heated rear window . . . . . . . . . . . . . . . . . . 127
Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Warming up the engine . . . . . . . . . . . . . . . 174
Tightening torque of wheel bolts . . . . . . . . . . . 300
tiptronic . . . . . . . . . . . . . . . . . . . . . . . . . . . 183, 189
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 254
Tow starting General notes . . . . . . . . . . . . . . . . . . . . . . . 294
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 203, 294 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . 205
Notes on towing . . . . . . . . . . . . . . . . . 203, 204
Removable towing bracket . . . . . . . . . . . . . 206
Technical requirements . . . . . . . . . . . . . . . 203
Towing a trailer . . . . . . . . . . . . . . . . . . . . . . . . . 299
Towing bracket, fitting . . . . . . . . . . . . . . . . . . . 212
Towing eye . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
Towing eyes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 295
Tow-starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
Traction control system How the system works . . . . . . . . . . . . . . . . 194
Trailer weights . . . . . . . . . . . . . . . . . . . . . . . . . . 299 Trip recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Turn signal lamps
Hazard warning lights . . . . . . . . . . . . . . . . . . 68
Trailer turn signals . . . . . . . . . . . . . . . . . . . . 67
Turn signals . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Turn signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Tyre Mobility System . . . . . . . . . . . . . . . . . . . . . 262
Tyre mobility system . . . . . . . . . . . . . . . . . . . . . 255
Tyre pressure . . . . . . . . . . . . . . . . . . . . . 66, 90, 245 Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Tyre pressure monitoring . . . . . . . . . . . . . . . . . 246
Tyre pressure monitoring system . . . . . . . . . . . . 89
Tyre pressures . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Tyre repair kit Tyre Mobility System . . . . . . . . . . . . . . . . . . 262
Tyres and wheels Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 251
Tyres service life . . . . . . . . . . . . . . . . . . . . . . . . 248
Tyres tread depth . . . . . . . . . . . . . . . . . . . . . . . 249
Tyres with directional tread pattern . . . . . . . . . 245
UUnderbody protection . . . . . . . . . . . . . . . . . . . . 219VVehicle data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298
Vehicle identification data . . . . . . . . . . . . . . . . 298
Vehicle identification number . . . . . . . . . . . . . 298
Vehicle keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
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