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Vehicle care183
Place the fuse extractor on the
various types of fuse from the top or
side, and withdraw fuse.
Engine compartment fuse
box
The fuse box is in the front left of the
engine compartment.
Disengage the cover, lift it upwards
and remove.
After having changed defective fuses
close the fuse box cover and press
until it engages.
If the fuse box cover is not closed
correctly, malfunctions may occur.
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184Vehicle care
No.Circuit1Starter2–3Fuel filter, cooling4Horn5Terminal 306Engine control module, trans‐
mission control unit7Fog light8Engine cooling9Engine cooling10Vacuum pump11Ignition, preheating12Headlamp levelling13Air conditioning system,
terminal 1514Transmission control unit15High beam rightNo.Circuit16High beam left17Engine control module18Engine control module,
terminal 1519Airbag20Engine control module21Engine control module,
terminal 87
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Vehicle care185
No.Circuit22Electrical parking brake23Tyre repair kit24Fuel pump25ABS26Heated rear window27ABS28Interior fan29Cigarette lighter30Air conditioning system31Front power window, left32Front power window, right33Mirror heating34ABS35AirbagInstrument 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.
Page 188 of 237
186Vehicle care
In right-hand drive vehicles, the fuse
box is located behind a cover in the
glovebox. Open the glovebox, pull
cover upwards and remove.
No.Circuit1Radio2Display, instrument, telephone3Radio4Ignition switch, immobiliser5Windscreen washer, rear
screen washer6Central locking system, tailgate7Central locking system8Display, instrument, telephone9Heated steering wheel10Rear left door unlocking11Rear right door unlocking12Courtesy light13Rain sensor, interior mirror,
outside mirrors14–Load compartment fuse
box
The fuse box is on the left side of the
load compartment behind a cover.
Remove the cover.
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Vehicle care187
Disengage the four retaining lugs andremove the cover.
No.Circuit1Adaptive forward lighting2–3–4–5–6Rear power window, right7Adaptive forward lighting8Trailer module, Trailer socket9Seat, lumbar support, left10Rear power window, left11Park assist12Electrical sunblind13–14Heated front seats15Trailer module16Seat, lumbar support, right17–
Page 190 of 237
188Vehicle careVehicle toolsTools
Vehicles with spare wheel
The jack and the vehicle tools are in
the spare wheel well in the load
compartment.
Vehicles with tyre repair kit
To open the compartment, disengage the cover and open it.
The vehicle tools are in the right-hand
compartment in the load
compartment, together with the tyre
repair kit.
Page 191 of 237

Vehicle care189Wheels and tyresTyre condition, wheel condition
Drive over edges slowly and at right
angles if possible. Driving over sharp
edges can cause tyre and wheel
damage. Do not trap tyres on the kerb
when parking.
Regularly check the wheels for
damage. Seek the assistance of a
workshop in the event of damage or
unusual wear.
Winter tyres Winter tyres improve driving safety attemperatures below 7 °C and should
therefore be fitted on all wheels.
In accordance with country-specific
regulations, affix the speed sticker in
the driver's field of view.Tyre designations
E.g. 195/65 R 15 91 H195=Tyre width, mm65=Cross-section ratio (tyre
height to tyre width), %R=Belt type: RadialRF=Type: RunFlat15=Wheel diameter, inches91=Load index e.g. 91 is
equivalent to 615 kgH=Speed code letter
Speed code letter:
Q=up to 100 mphS=up to 112 mphT=up to 118 mphH=up to 130 mphV=up to 150 mphW=up to 168 mph
Tyre pressure
Check the pressure of cold tyres at
least every 14 days and before any
long journey. Do not forget the spare
wheel. This also applies to vehicles
with tyre deflation detection system or
tyre pressure monitoring system.
Unscrew the valve cap.
Tyre pressure 3 224 and on the label
at the front passenger door.
The tyre pressure data refers to cold
tyres. It applies to summer and winter tyres.
Always inflate the spare tyre to the
pressure specified for full load.
The ECO tyre pressure serves to
achieve the smallest amount of fuel
consumption possible.
Incorrect tyre pressures will impair
safety, vehicle handling, comfort and
fuel economy and will increase tyre
wear.
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190Vehicle care
Tyre pressures differ depending onvarious options. For the correct tyre
pressure value, follow the procedure
below:
1. Identify the engine identifier code.
Engine data 3 215.
2. Identify the respective tyre.
The tyre pressure tables show all possible tyre combinations 3 224.
For the tyres approved for your
vehicle, refer to the EEC Certificate of
Conformity provided with your vehicle or other national registration
documents.
The driver is responsible for correct
adjustment of tyre pressure.9 Warning
If the pressure is too low, this can
result in considerable tyre warm-
up and internal damage, leading to tread separation and even to tyre
blow-out at high speeds.
If the tyre pressure must be reduced
or increased on a vehicle with tyre
pressure monitoring system, switch
off ignition.
Tyre deflation detection system The tyre deflation detection system
continually checks the rotation speed
of all four tyres.
If a tyre loses pressure the control
indicator w illuminates yellow and a
warning message is displayed in the
Driver Information Centre with
Uplevel-Display. Stop immediately
and check tyre pressure.
Control indicator w 3 97.
System initialisation After tyre pressure correction or
wheel change, the system must be
initiated:
1. Apply electrical parking brake.
2. Press the MENU button to select
the Vehicle Information Menu .3. Turn the adjuster wheel to select
Tire Pressure System .
4. Press the SET/CLR button to
select the reset of the system.
On vehicles with Midlevel- Display, make a longer press on
the SET/CLR button to start the
initialisation of the system.
5. On vehicles with Uplevel-Display, the selection is confirmed by a
pop-up indication. Confirm to start
the initialisation of the system.
Selection and indication can be
different between Midlevel-Display
and Uplevel-Display.