Page 185 of 248

179
Self-help, vehicle care
Picture no: 15319t.tif
4. Screw the compressor air hose to the connection on the sealant bottle.
5. Fit the sealant bottle in the retainer on the compressor.
Set the compressor near the tyre in such
a way that the sealant bottle is upright.
6. Remove the valve cap from the defective tyre.
Picture no: 15795t.tif
7. Screw the filler hose to the tyre valve.
8. The switch on the compressor must be set to §.
9. Plug the compressor connector into the accessory socket or the cigarette lighter
socket. For accessory sockets 378.
Picture no: 15796t.tif
10. Switch on ignition.
11. Set the rocker switch on the compressor
to I. The tyre is filled with sealant.
12. While the sealant bottle drains (approx. 30 seconds) the pressure
indicator on the compressor briefly
points to 6 bar. Pressure then sinks
again.
13. All of the sealant is pumped into the tyre. Afterwards, the tyre is filled with
air.
14. The prescribed tyre pressure should be reached within 10 minutes. Tyre
pressure 3228. Switch off the
compressor when the correct pressure is
obtained.
Page 186 of 248

180 Self-help, vehicle care
Picture no: 15797t.tif
If the prescribed tyre pressure is not
obtained within 10 minutes, remove the
tyre repair kit. Move the vehicle one tyre
rotation. Reattach the tyre repair kit
and continue the filling procedure
for 10 minutes. If the prescribed tyre
pressure is still not obtained, the tyre is
too badly damaged. Seek the
assistance of a workshop.
Drain excess tyre pressure with the
button over the pressure indicator.
Do not operate the compressor for
more than 10 minutes, see "Important"
3181. 15. Detach the tyre repair kit. Screw the
filler hose to the free connection on the
sealant bottle. This prevents sealant
leakage. Stow the tyre repair kit in the
luggage compartment.
16. Wipe away any sealant spill with a cloth.
17. Fold away warning triangle, store in luggage compartment 3171.
18. Stick the label indicating maximum permitted speed somewhere in the
driver’s field of view.
19. Continue driving immediately to allow the sealant to distribute evenly
throughout the tyre. Stop after
approx. 10 km (no more than 10
minutes) and check tyre pressure. Screw
the compressor air hose directly onto
the tyre valve (see Fig. 15798 T).
Picture no: 15798t.tif
If tyre pressure is more than 1.3 bar,
adjust to the prescribed value. Repeat
the procedure until there is no more
pressure loss.
If the tyre pressure has dropped
below 1.3 bar, the vehicle must not be
used. Contact a workshop for
assistance.
20. Stow tyre repair kit in luggage compartment 3178.
Page 187 of 248

181
Self-help, vehicle care
Important
The driving comfort of the repaired tyre is
severely affected, therefore have this tyre
replaced.
If the compressor makes abnormal noises
or heats up greatly, switch it off for at
least 30 minutes.
The integrated safety valve opens at a
pressure of 7 bar.
Protect the compressor from moisture and
rain.The sealant can only be stored for approx.
4 years. After this time, the sealing
properties can no longer be guaranteed.
Heed the expiration date on the sealant
bottle.
Replace the used sealant bottle. Dispose of
the bottle as prescribed by applicable
laws.
The compressor and sealant can be used
from approx. -30 C.
The adapter on the bottom of the
compressor can be used to pump up other
items such as balls,
air beds, inflatable
dinghies and so on. Unscrew the air hose
and pull the adapter out.
Electrical system Fuses
Data on the replacement fuse must match
the data on the defective fuse.
In the vehicle there are two fuse boxes: in
the vehicle interior to the left of the
instrument panel, and in the engine bay to
the left in front of the windscreen.
Page 188 of 248

182 Self-help, vehicle care
Picture no: 14725s.tif
Keep spare fuses in the fuse box lid (shown
in yellow in the Fig.). Open lid 3182.
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.
To help in replacing fuses, there is a special
fuse-gripping tool in the fuse box 3.
Picture no: 12892j.tif
Slot fuse-gripping tool onto fuse and
withdraw it.
Some functions are protected by several
fuses.
There may be fuses inserted with no
function.
Always use fuses with the correct current
value. This is shown on each fuse, and is
also indicated by the fuse colour and the
plug-in location in the fuse box.
Different versions of fuses are used.
Picture no: 14211s.tif
Fuses and the most important
circuits they protect Fuse box in passenger compartment
Disengage fuse box cover at bottom and
remove. No. Circuit
1 Central control unit
2 Immobiliser, hazard warning
lamps, exterior lighting
3 Headlamp washer system
Page 189 of 248

183
Self-help, vehicle care
No. Circuit4 Infotainment system, diesel engine
5 –
6 –
7 Starter, diesel engine: engine
controller
8 Horn
9 Fuel injection system, fuel pump,
stationary heater
10 Turn signal lamps
11 Infotainment system, Information
display, Infotainment system
12 Heated rear window, exterior
mirrors
13 Central locking, anti-theft alarm
system
14 Engine control
Petrol engine:
Diesel engine:
15 Engine control unit,
Z 17 DTH engine
16 Accessory socket, cigarette lighter No. Circuit
17 –
18 Adaptive Forward Lighting
19 Central locking system
20 Interior lighting, reading lamp
21 Windscreen washer system
22 Rear electric window
23 Tilt/slide sun roof, skylight roof
24 Anti-theft alarm system
25 Rear window wiper
26 Ignition system, engine electronics
27 Engine control, airbag, ESP®
Plus
28 Air conditioning system
29 Front left electric window
30 –
31 Engine control,
Z 17 DTH engine
32 Front right electric window No. Circuit
33 Central control module,
immobiliser, control indicators
34 Windscreen wipers
35 Interior lighting, interior mirror,
information display
36 Brake light, ABS, ESP®
Plus
37Cigarette lighter, auxiliary heater
38 Seat heater (left)
39 Seat heater (right)
40 Adaptive Forward Lighting,
automatic headlamp range
adjustment
41 Reversing lamps
Page 190 of 248
184 Self-help, vehicle care
Picture no: 14436s.tif Picture no:
No. Circuit
42 Engine cooling, lighting
43 Left parking lamp
44 Right parking lamp
45 Fog tail lamp
46 Fog lamps
47 Towing equipment, accessory
socket
48 Diesel filter heater
49 –
50 Diesel filter heater
No. Circuit
51 Left dipped beam:
Xenon headlamp
Halogen headlamp
52 Right dipped beam:
Xenon headlamp
Halogen headlamp
53 Sun roof, electric windows, radio
54 Main beam (left)
55 Main beam (right)
56 –
Picture no: 14213s.tif
Fuse box in engine compartment
The fuse box is at the front left of the
engine compartment.
Disengage cover of fuse box from lug and
lift off.
Some circuits may be protected by several
fuses.
9 Warning
Turn off engine before opening fuse
box, risk of injury.
Page 191 of 248
185
Self-help, vehicle care
Picture no: 14214s.tif
The following fuses are Maxi fuses.
Bulb replacement Switch off the ignition and switch off the
relevant switch or close the doors.
Only hold a new bulb at the base! Do not
touch the bulb glass with your bare hands.
Replace the bulb, checking that the data
on the base matches that of the defective
bulb.
To replace a bulb, pull off the relay box on
the left side. On the right side, pull off the
air hose to the air filter.
Picture no: 16085s.tif
Halogen headlamp systemHeadlamp system has separate bulbs for
dipped beam 1 (bottom bulbs) and main
beam 2 (top bulbs).
No. Circuit
1 Interior fan
2 Power steering
3 ABS
4 Easytronic diesel preheating
system
5 Heated rear window
6 Engine cooling
7 Starter
8 Engine cooling
Page 192 of 248
186 Self-help, vehicle care
Picture no: 16086s.tif
Dipped beam
1. Open bonnet and engage support.
2. Rotate the cap anticlockwise and remove.
Picture no: 16087s.tif
3. Press the bulb do wn in the holder.
4. Remove bulb with connector from reflector housing.
Picture no: 16088s.tif
5. Detach plug connector from bulb base.
6. Attach connector to new bulb.
7. Insert the bulb with connector so that the lug engages in the recess in the
reflector.
8. Place headlamp protective cover in position and close.