Wheels and Tyres
160
Wheels and TyresWheelsGeneral information
New tyres do not offer optimal grip at first and should therefore be run in for about
500 km at a moderate speed and an appropri ately cautious style of driving. You will
also profit from longer tyre life.
The tread depth of new tyres may differ be cause of design features and the config-
uration of the tread (depending on the type of tyre and the manufacturer).
Drive over curbs on the side of the road and other such obstacles slowly and,
where possible, at a right angle in order to avoid damage to tyres and wheel trims.
Inspect your tyres from time to time for damage (punctures, cuts, splits and
bulges). Remove foreign bodies from the tyre profile.
Damage to tyres and wheels is frequently not visible. Unusual vibrations or pulling
of the vehicle to one side coul d be a sign of tyre damage. Please reduce your speed
immediately and stop if you su spect that a wheel is damaged. Inspect the tyres for
signs of damage (bulges, splits, etc.). If no visible damage is present, please drive at an
appropriately slow speed and carefully to the nearest specialist garage in order to have
your vehicle inspected.
Also protect your tyres from contact with oil, grease and fuel.
Immediately replace any dust caps of the valves which have got lost.
Mark wheels before removing them so that their previous direction of running can
be maintained when mounted them again.
Always store wheels or tyres which been removed in a cool, dry and, where
possible, dark place. Tyres which are not fixed to a wheel trim should be stored upright.
WARNING
New tyres during the first 500 km do not offer optimal grip and should
therefore be run appropriately - risk of accident!
Never drive with damaged tyres - risk of accident!
Note
Please observe the various differing legal requirements regarding tyres.Ty re l i feThe life of your tyres very much depends on the following points:
Tyre pressure
The working life of tyres will be shortened considerably if the tyres are insufficiently or
over-inflated and this will have an adverse effect on the handling of your vehicle.
Correctly inflated tyres are of particular importance when travelling at high speeds. It
is therefore good to check the pressure at least once a month and also before setting
off on a long trip. Please do not forget the spare wheel* when checking the tyres.
The tyre inflation pressures for summer tyres are indicated on the inside of the fuel
filler flap fig. 153 . The inflation pressures for winter tyres are 20 kPa (0.2 bar)
higher than those for summer tyres page 163.
The tyre pressure should be at the highest pressure specified for your vehicle at all
times.
Always check the inflation pressure of tyres when cold. Do not reduce the higher pres-
sure of warm tyres. Adapt the inflation pressure of the tyres accordingly if your vehicle
is carrying a significantly higher payload.
Fig. 153 An opened fuel filler
flap with a tyre size and tyre
inflation pressure table
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Wheels and Tyres
164
Winter tyres must be mounted on all four wheels to obtain the best handling charac-
teristics.
You must only fit those types of winter tyre which are approved for your vehicle. The
permissible sizes of winter tyres are stated in your vehicle documents. Approvals
may differ because of national legislation.
Please remember that the tyres should be inflated to 20 kPa (0.2 bar) more than is the
case for summer tyres page 160, fig. 153.
Winter tyres no longer offer the same winter performance once the tyre tread has
worn down to a depth of about 4 mm.
Ageing also causes winter tyres to lose most of their winter performance properties -
even in cases where the remaining tread depth is still clearly more than 4 mm.
Speed restrictions apply to winter tyres as well as to summer tyres page 162,
.
You can fit winter tyres of a lower speed ca tegory to your vehicle provided that you
also do not drive faster than the permissible maximum speed for such tyres, even if the
possible maximum speed of your vehicle is higher. The corresponding tyre category
can damage the tyres when exceeding the permissible maximum speed.
Please pay attention to the notes if you decide to fit winter tyres page 160.
You can also fit so-called “all-year tyres” instead of winter tyres.
Please contact your specialist garage if there are any points which are not clear who
will be able to provide you with inform ation regarding the maximum speed for your
tyres.
WARNING
You must on no account drive your car at more than the permissible maximum
speed for your winter tyres - risk of an accident resulting from tyre damage and
loss of control over your car.
For the sake of the environment
Fit your summer tyres on again in good time since summer tyres offer you better grip
and handling on roads which are free of snow and ice as well as ar temperatures below 7 °C - the braking distance is shorter, there is less tyre noise, tyre wear is reduced and
fuel consumption is reduced.
Note
Please observe the various differing legal requirements regarding tyres.Snow chainsSnow chains must only be mounted on the front wheels.
When driving on wintry roads, snow chains
improve not only traction, but also the
braking performance.
For technical reasons, it is only permissi ble to fit snow chains with the following
wheel/tyre combinations.
Only use fine-link snow chains . They must not project more than 15 mm - including
the chain lock.
Remove the full wheel trims if you wish to fit snow chains to the wheels.
Observe the national legal requirements re lating to the maximum vehicle speed with
snow chains.
WARNING
Please pay attention to the information in the supplied fitting instructions of
the snow chain manufacturer.
Wheel size
Depth (D)
Ty re s i z e
6J x 14
38 mm
175/80
6J x 15
38 mm
195/65
5.5J x 16
36 mm
205/55
s2rc.book Page 164 Thursday, April 22, 2010 10:58 AM
Fuses and light bulbs
180
Electrically adjustable seats are protected by automatic circuit breakers, which
switch on again automatically after a few seconds after the overload has been
eliminated.BulbsChanging bulbsThe relevant lamp must always be switch ed off before a light bulb is replaced.
Defect light bulbs should only be replaced with light bulbs of the same type. The desig-
nation is located on the light socket or the glass bulb.
Changing certain bulbs is not something whic h you can do yourself, but requires to be
done by a specialist. Other parts of the vehi cle must be removed in order to change the
13
Brake lights
10
14
Interior lighting, central locking system, interior lighting
(without central locking system)
10
15
Instrument cluster, steering angle sender, rear mirror
5
16
Air conditioning system
10
17
Heated windscreen washer nozzles
daylight driving lights
5
30
18
Right main beam
10
19
Left main beam
10
20
Right low beam, headlight range adjustment
15
21
Low beam on the left
15
22
Right parking light
5
23
Left parking light
5
24
Front window wiper, motor for wash pump
20
25
Air blower, air conditioning system, Climatronic
25
26
Rear window heater
25
27
Rear window wiper
15
28
Fuel pump
15
29
Control unit: Petrol engine
control unit: Diesel engine
15
10
30
Electric sliding/tilting roof
20
31
Not assigned
32
Petrol engine - injection valves
diesel engine - injection pump, control unit
10
30
33
Headlight cleaning system
20
34
Petrol engine: Control unit
diesel engine: Control unit
10
10
No.
Power consumer
Amperes
35
Trailer socket, power socket in the luggage compartment
30
36
Fog lights
15
37
Petrol engine: Control unit
diesel engine: Control unit
20
5
38
Luggage compartment light, central locking system, inte-
rior lighting
15
39
Hazard warning light system
15
40
Horn
20
41
Cigarette lighter
15
42
Radio, mobile phone
15
43
Petrol engine: Control unit
diesel engine: Control unit
10
10
44
Seat heaters
15
a)For power consumers, e.g. the radio, which can be operated with the ignition switched off as
long as the ignition key is not withdrawn.No.
Power consumer
Amperes
s2rc.book Page 180 Thursday, April 22, 2010 10:58 AM
Technical Data187
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Te c h n i c a l D a t aTechnical DataGeneral informationThe details given in the official vehicle regi stration documents always take precedence
over the details in the Owner's Manual. Please refer to the official vehicle registration
documents or consult a specialist garage concerning the engine with which your
vehicle is equipped.Used abbreviationsPerformancesThe listed performance values were determined without performance-reducing
equipment, e.g. air conditioning system.
WeightThe loading capacity is reduced in line with the range of the special equipment. The
unloaden weight contains a fuel tank topped up to 90%. A driver with a weight of 75
kg is also includ ed in the value.Identification detailsVehicle data sticker
The vehicle data sticker fig. 182 is located on the floor of the luggage compartment
and is also stated in the Service schedule.
The vehicle data sticker co ntains the following data:
Vehicle identification number (VIN)
Vehicle type
Abbreviation
Importance
kW
Kilowatt, measuring unit for the engine output
rpm
Engine revolutions per minute
Nm
Newton meter, measuring unit for the engine torque
CO2 in g/km
discharged quantity of carbon dioxide in grams per driven kilom-
eter
M5
5-speed manual gearbox
PD
Unit injector engine
Fig. 182 Vehicle data sticker
A1A2
s2rc.book Page 187 Thursday, April 22, 2010 10:58 AM
Technical Data
188Gearbox code, paint number, interior eq uipment number, engine output, engine
code
Partial description of the vehicle
Vehicle identification number (VIN)
The vehicle identification number - VIN (veh icle body number) is stamped into the
engine compartment on the right hand sh ock absorber dome. This number is also
located on a sign on the lowe r left hand edge below the windscreen (together with a
VIN bar code).
Engine number
The engine number is stam ped into the engine block.
Type plate (production plate)
The type plate is located in the engine compartment at the front on the left hand shock
absorber dome.
Homologation sign
The homologation sign is located on the lock carrier. Vehicles for certain countries do
not have an homologation sign.
Sticker on inside of fuel filler flap
The sticker is affixed to the inside of the fuel filler flap. They contain the following data:
the prescribed type of fuel;
tyre size;
Tyre pressure.
Fuel consumption according to the ECE standards and EU guidelinesDepending on the range of the special equipment, style of driving, traffic situation,
weather influences and vehicl e condition, the consumption values which in practice
result when using the vehicle can deviate from the indicated values. Urban traffic
The consumption measurement in urban traffic
begins with starting of the cold engine.
Afterwards the normal urban traffic is simulated.
Non-urban traffic
For the consumption measurement in non-ur ban traffic the vehicle, as in daily
motoring, is accelerated and braked severa l times in all gears. The vehicle speed
changes within the range from 0 to 120 km/h.
Combined traffic
The consumption value in the combined traffic consists of 37% from the value for the
urban traffic and of 63% from th e value for the non-urban traffic.A3A4s2rc.book Page 188 Thursday, April 22, 2010 10:58 AM