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200 Self-help, vehicle careChanging wheels There may be a tyre repair kit instead of a
spare wheel 3204.
Make the following preparations and
observe the following information:
z Park the vehicle on a level, firm and non-
skid surface. The front wheels must be in
the straight-ahead position.
z Switch on hazard warning lights, apply
hand brake, automa tic transmission 3 -
selector lever in P , manual transmission
or manual automatic transmission 3 -
engage 1st or reverse gear.
z Erect warning triangle 3 as specified.
Warning triangle 3196.
z Remove spare wheel from luggage
compartment 3196. z
Never change more than one wheel at
once.
z Use the jack 3 only to change wheels.
z If the ground on which the vehicle is
standing is soft, a solid board (max. 1 cm
thick) should be placed under the jack 3.
z Block the wheel diagonally opposite the
wheel to be changed by placing wedge
blocks or equivalent in front and behind
the wheel. z
No people or animals may be in the
vehicle when it is jacked up.
z Never crawl under a jacked-up vehicle.
z Do not start the vehicle when it is raised
on the jack.
z Before screwing in the wheel bolts, clean
them and lightly coat the taper of each
wheel bolt with comm ercially available
grease.
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203
Self-help, vehicle care
5. Unscrew the wheel bolts. If the wheel bolts have retaining
washers 3, they must not be removed.
6. Change wheel. Notes on spare wheel 3197. Notes on temporary spare wheel
3 197.
Picture no: 17249t.tif
7. Screw in the wheel bolts. Push the wheel
bolt wrench 3 on as far as possible and
tighten the wheel bolts slightly.
8. Lower vehicle.
9. Push the wheel bolt wrench 3 on as far
as possible and tighten crosswise.
Tightening torque is 110 Nm. 10. Before refitting the wheel trim, clean the
wheel around the retaining clips. Valve
symbol 3 on back of wheel trim must
point towards valve on wheel.
Align and refit wheel trim or wheel bolt
caps 3.
Alloy wheels 3: Align and refit wheel
bolt caps 3.
11. Stow removed wheel, tool kit and warning triangle 3 in the luggage
compartment 3196 to 3198.
12. Check the tyre pressure of the newly mounted wheel.
13. Have the wheel bolt tightening torque (110 Nm) checked.
14. Replace the faulty tyre on the wheel that was removed.
15. Initialise deflation detection system 3
3 164.
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Page 210 of 284

204 Self-help, vehicle careTyre repair kit
3
Minor damage to the tyre tread or side wall
can be repaired using the tyre repair kit
(does not apply to run-flat tyres).
Do not remove the foreign body from the
tyre.
T y r e d a m a g e e x c e e d i n g 4 m m o r t ha t i s o n
the rim cannot be repaired with the tyre
repair kit.
Important 3207.
In the event of a flat tyre:
z Switch on hazard warning lights, apply
handbrake, engage 1st or reverse gear,
in the case of automatic transmission 3
move selector lever to position P.
z Erect warning triangle 3 as specified.
Warning triangle 3196.
Picture no: 18317s.tif
The tyre repair kit is located in the
compartment to the right in the luggage
compartment.
To open the compartment, disengage the
cover and open it.
Picture no: 18318s.tif
1. Remove the sealant bottle and holder
with the air tube from the compartment.
9
Warning
Do not drive faster than 80 km/h.
Do not use the temporary spare wheel
for a lengthy period.
Steering and handling may be affected.
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Page 214 of 284
208 Self-help, vehicle careElectrical system Fuses
Data on the replacement fuse must match
the data on the defective fuse.
There are three fuse boxes in the vehicle:
zfront left, in the engine compartment,
z in the interior behind the light switch, or,
in right-hand drive cars, behind the
glove compartment,
z on the left of the luggage compartment,
behind a cover.
Before replacing a fuse, turn off the
respective switch and the ignition.
A blown fuse can be recognised by its
melted wire. Do not replace the fuse until
the cause of the fault has been remedied.
Only fit fuses of the specified current
rating. Each fuse has its current rating
written on it, the ratings are also colour
coded.
Picture no: 17259t.tif
Some functions are protected by several
fuses.
There may be fuses inserted with no
function.
Picture no: 17260t.tif
Different versions of fuses are used.
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Page 215 of 284
209
Self-help, vehicle care
Picture no: 18588s.tif
Fuses and the most important
circuits they protectFuse box in engine compartment
The fuse box is at the front left side of the
engine compartment.
To open, disengage the cover, fold cover
up and remove.
Picture no: 18589s.tif Picture no:
No. Circuit
1 Starter
2 Air conditioning system
3 Diesel fuel filter heater
4 Horn
5 Manual transmission automated,
automatic transmission
6 Engine control unit
7 Fog lamps
8 Engine cooling
9 Engine cooling
No. Circuit
10 Automated manual transmission
11 Glow plugs, ignition system
12 Headlamp range adjustment,
Adaptive Forward Lighting
13 Air conditioning system
14 Automated manual transmission
15 Main beam (right)
16 Main beam (left)
17 Main relay
18 Engine control unit
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Page 216 of 284
210 Self-help, vehicle care
Picture no: 18272s.tif
Fuse box in interior
The fuse box is located behind the light
switch. Pull the top edge of the panel and
fold down.
Picture no: 18403s.tif
In right-hand drive cars, the fuse box is
located behind a cover in the glove
compartment. Open the glove
compartment and remove the cover. To
close, first put on the cover, then lock it into
position.
No. Circuit
19 Airbags
20 Main relay
21 Main relay
22 Central control unit
23 Tyre repair kit
24 Fuel pump
25 Anti-lock brake system
26 Heated rear window
27 Anti-lock brake system
28 Interior fan
29 Cigarette lighter
30 Air conditioning system
31 Electric window (left)
32 Electric window (right)
33 Heated exterior mirrors
34 –
35 –
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211
Self-help, vehicle care
Picture no: 18590s.tifPicture no: 18261s.tif
Fuse box in luggage compartment
The fuse box is located behind the cover in
the left luggage compartment trim.
Remove cover from fuse box.
Picture no: 18319s.tif
No. Circuit
1 –
2 Instruments, information display
3 Radio
4 Ignition switch
5 Windscreen washer system
6 Unlocking the luggage
compartment
7 Central locking system
8 –
9 Courtesy lamp
10 Electric power steering
11 Light switch, brake lamp
12 ABS, brake lamp
13 Heated steering wheel
14 Park pilot, rain sensor, interior
mirror
No. Circuit
1 Adaptive Forward Lighting
2 –
3 Seat heater (left)
4 Seat heater (right)
5 –
6 –
7 –
8 Flex-Fix system, towing equipment
No. Circuit
9 –
10 –
11 –
12 –
13 –
14 –
15 Flex-Fix system, towing equipment
16 –
17 Sun roof
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Page 222 of 284
216 Self-help, vehicle care
Picture no: 18129s.tif
Adaptive Forward Lighting
system
3
Headlamp system has separate systems
for dipped beam 1 (outer bulbs) and main
beam 2 (inner bulbs). The cornering light is
also located behind the cover for the main
beam.
Due to the complexity of the procedure,
bulb changes should be carried out by a
workshop.
Picture no: 18134s.tif
Dipped beam
1. Open bonnet and engage support.
2. Disengage wire clip and remove cover.
Picture no: 18374s.tif
3. Press base upwards and remove from reflector.
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