
Windscreen washer system
Fig. 145
Engine compartment: Wind-
screen washer fluid reservoir
First read and observe the introductory information and safety warn-
ings on page 169.
The windscreen washer fluid reservoir contains the cleaning fluid for the wind-
screen or rear window and for the headlight cleaning system. The windscreen
washer fluid reservoir is located in the engine compartment.
The filling level of the container is about 3
litres and about 5.5 litres on vehicles
that have a headlight washing system 1)
.
Clear water is not sufficient to intensively clean the windscreen and headlights.
We therefore recommend using clean water with a screen cleaner (including anti-
freeze in the winter) that is able to remove stubborn dirt.
Antifreeze should always be added to the cleaning water in the winter even if the
vehicle is fitted with heated windscreen washer nozzles.
Under exceptional circumstances, methylated spirits can also be used if no screen
cleaner with antifreeze is available. The concentration of methylated spirits must
not be more than 15 %. The freeze protection at this concentration is sufficient
only to -5 °C. CAUTION
■ Under no circumstances must radiator antifreeze or other additives be added to
the windscreen washer fluid.
■ If the vehicle is fitted with a headlight cleaning system, only cleaning products
which do not attack the polycarbonate coating of the headlights must be added
to the windscreen washer fluid.
ä Note
Do not remove the filter from the windscreen washer fluid reservoir when replen-
ishing it with liquid otherwise the liquid transportation system can be contamina-
ted, which can cause the windscreen washer system to malfunction. Ð Vehicle battery
ä
Introduction
This chapter contains information on the following subjects:
Battery cover 178
Checking the battery electrolyte level 178
Operation in winter 178
Charging a vehicle battery 179
Disconnecting and reconnecting the vehicle battery 179
Replacing the vehicle battery 179
Automatic load deactivation 180
Warning symbols on the vehicle battery Symbol Importance
Always wear eye protection.
Battery acid is severely caustic. Always wear gloves and eye protec-
tion.
Keep fire, sparks, open flames and lit cigarettes well clear of the ve-
hicle battery.
When charging the vehicle battery, a highly explosive gas mixture is
produced.
Keep children away from the vehicle battery.
£1)
In some countries, 5.5 ltr. applies for both variants.
176 General Maintenance

Fuses in the dash panel
Fig. 165
Fuse box cover in the dash panel/schematic diagram of the fuse
box
First read and observe the introductory information and safety warn-
ings on page 201.
The fuses are located on the left side of the dash panel behind a cover.
›
Remove the cover for the fuse box using the key to the ignition
» Fig. 165.
› Replace the cover once the fuse has been changed.
Fuse assignment in the dash panel No. Power consumer
1 Heating of the gearbox ventilation (diesel engine)
Control unit for automatic gearbox DSG
2-3 Towing device
4 Instrument cluster, windshield wiper lever, turn signal light lever,
camera
5 Air blower for heating, radiator fan, air conditioning system, Clima-
tronic
6 Rear window wiper 7 Phone
8 Towing device
9 Vehicle voltage control unit - interior lights
Rear fog light
10 Rain sensor, light switch, diagnostic socket 11 Left side cornering lights ä
No. Power consumer
12 Right side cornering lights
13 Radio, changer for mobile navigation
14 Towing device 15 Light switch
16 Haldex 17 Control unit for headlamp beam adjustment and headlight swivel
18 Diagnostic socket, engine control unit, brake sensor
19 Control unit for ABS, ESP, switch for tyre air pressure control, control
unit for parking aid, switch for
OFF ROAD mode, START STOP button
20 Switch and airbag control unit
21 WIV, tail light, dimming mirrors, pressure sensor, telephone preinstal-
lation, air mass meter
22 Instrument cluster, control unit for electromechanical power steering
23 Central locking system and bonnet lid
24 Rear power window 25 Rear window heater, auxiliary heating and ventilation
26 Power socket in the boot 27 Electric sliding/tilting roof, electric sun screen
28 Fuel pump, injection valves 29 Front power window
30 front and rear lighter 31 Headlight cleaning system
32 Front seat heating, regulator for seat heating
33 Heating, air conditioning, Climatronic, remote control for auxiliary
heating
34 Alarm, spare horn 35 Control unit for automatic gearbox DSG
36 DVD Ð
202 Do-it-yourself

Fuses in the engine compartment
Fig. 166
Fuse box cover in engine compartment/Schematic diagram of the
fuse box
First read and observe the introductory information and safety warn-
ings on page 201.
On some vehicles, the battery cover must be removed before removing the cover
for the fuse box
» page 178.
› The cover for the fuse box is removed by pushing the circlips A
» Fig. 166
up-
wards as far as the stop. The symbol is displayed behind the clip. Now remove
the cover.
› Once the fuse has been removed, place the cover on the fuse box and push the
circlips A
back as far as the stop. The symbol
is displayed behind the clip. The
cover is locked into position.
Fuse assignment in engine compartment No. Power consumer
F1 Not assigned
F2 Control unit for automatic gearbox
F3 Measuring circuit
F4 ABS control unit F5 Control unit for automatic gearbox
F6 Instrument cluster, windscreen wiper lever, and turn signal lever F7 Power supply terminal 15, Starter
F8 Radio F9 Phone ä
No. Power consumer
F10 Engine control unit F11 Auxiliary heating and ventilation control unit
F12 Data bus control unit
F13 Engine control unit
F14 Ignition F15 Lambda probe, fuel pump relay Glow plug system
F16 Vehicle voltage control unit, right headlight, right tail light F17 Horn
F18 Amplifier for digital sound processor F19 Windscreen wipers
F20 Control valve for fuel pressure F21 Lambda probe
F22 Clutch pedal switch, brake pedal switch
F23 Coolant pump Charge pressure control solenoid valve, changeover valve for radiator
Fuel high pressure pump
F24 Active charcoal filter, exhaust gas recirculation valve, radiator fan F25 ABS control unit
F26 Vehicle voltage control unit, left headlight, left tail light F27 Glow Plug System
F28 Windscreen heater F29 Power supply of the interior
F30 Terminal X a) a)
In order not to drain the battery unnecessarily when starting the engine, the electrical components
of this terminal are automatically switched off. Ð
203
Fuses and light bulbs

Lock
Central locking system 29
Locking Emergency locking 32
Remote control 30
Locking and unlocking from the inside 29
M
MAXI DOT 15
Main menu 15
Settings 16
Maximum speed 211
Mirror Additional interior mirror 53
Automatic dimming interior mirror 52
Exterior mirror 53
Manual dimming interior mirror 52
Vanity 48
Mobile phone 114, 116, 119
Connecting to the hands-free system 117, 120
Multifunction display Functions 12
Memory 12
Operation 13
Multimedia 125
AUX-IN 126
MDI 126
N
Net partition 66
O
Off-road driving 151
Style of driving 154
OFF ROAD 98
Oil refer to Engine oil 172Onboard computer
see Multifunction display 12
Opening and closing the panoramic sliding roof 36
Opening and closing the sun screen 36
Operation in winter De-icing windows 163
Diesel fuel 169
Vehicle battery 178
Outside temperature 13
Overhang angle 153
Overview Engine compartment 171
Indicator lights 18
P
Paint see Paint damage 162
Paint damage 162
Panoramic sliding roof 36
Parking Park assist 101
Parking aid 100
Parking ticket holder 79
Passive Safety 128
Pedals 100
Periodic wiping 49
Petrol refer to Fuel 168
Polishing the paintwork refer to Taking care of your vehicle 162
Power steering 93
Power windows Button in the front passenger door 35
Button in the rear doors 35
Operational faults 36
Preservation refer to Taking care of your vehicle 162 R
Radiator fan 175
Radio reception Aerial 163
Functional fault 163
Raise vehicle 193
Rear mirror Automatic dimming interior mirror 52
Exterior mirror 53
Manual dimming interior mirror 52
Rear window - heating 47
Recirculated air mode Climatronic 87
Manual air conditioning system 85
Recommended gear 11
Refuelling 167
Fuel 167
Regulation Headlight beam 44
Remote control 30
Synchronisation process 31
Remote control key Replacing the battery 26
Replacement of parts 189
Replacing Bulbs 204
Fuses 201
Vehicle battery 179
Windscreen wiper blade 51
Replenishing Coolant 174
Engine oil 172
Windscreen washer fluid 176
Roof rack system Roof load 69
Running in Brake pads 146
Engine 146
218 Index