
263
If and when
Fuse assignment
This list shows the fuses which can be replaced relatively
easily by the owner.
No.ConsumerAmps1Air conditioner102Footwell lamps53Heated washer jets54Radiator fan55Parking aid, automatic gearbox106Air conditioner (air purity sensor), pressure sensor5
7Electronic Stability Control (ESC), brake light switch,
clutch pedal switch, steering angle sensor10
8Telephone59Lambda probe heater1010Adaptive headlights right5
11Airbag and disconnection of the front passenger air-
bag5
12Diagnostic socket1013Steering column unit1014Brake lights1015Instrument panel1016Vacant 17Tyre pressure control, rain/light sensor1018Adaptive headlights left519Start-Stop control unit1020Engine management1521Start/Stop battery power management522Vacant 23Vacant
No.ConsumerAmps24Central electrics unit for convenience equipment2025Heater blower3026Rear window heater3027Power socket for trailer (control unit)3028Fuel pump, auxiliary pump for diesel2029Radio, amplifier (with Start-Stop)2030Sliding/tilting sunroof20
31Diagnosis connection, automatic anti-dazzle interior
mirror, reverse light, automatic gearbox15
32Towing socket1533Lighter2034Rear electric windows3035Luggage compartment power socket*2036Wiper system30
37Pump for windscreen washer and headlight washer
system30
38Luggage compartment illumination, alarm1539Radio, amplifier (without Start-Stop)2040Horn2541230 volt socket3042Electronic Stability Control (ESC)2543Front electric windows3044Seat heating35
Some of the electrical items listed in the table are only fitted on certain
models or are optional extras.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

265
If and when
Changing bulbs. Halogen headlights Types of bulbs
You must only replace a bulb with a bulb of the same type. The name can be
found on the base of the bulb holder.
BulbTypeDipped beam headlights (halogen)12 V/55 W (H7 LL)Main beam headlights12 V/55 W (H1)Turn signal12 V/21 W (PY21W)Side lights12 V/5 W (W5W LL)
WARNING
● Take particular care when working on components in the engine com-
partment if the engine is warm - risk of burns!
● Bulbs are highly sensitive to pressure. The glass can break when you
touch the bulb, causing injury.
● The high voltage element of gas discharge bulbs* (xenon light) must
be handled correctly. Otherwise, there is a risk of death.
● When changing bulbs, please take care not to injure yourself on sharp
parts in the headlight housing.
CAUTION
● Remove the ignition key before working on the electric system. If not, a
short circuit could occur.
● Switch off the lights or parking lights before you change a bulb.
For the sake of the environment
Please ask your specialist retailer how to dispose of used bulbs in the prop-
er manner.
Note
● Depending on weather conditions (cold or wet), the front lights, the fog
lights, the tail lights and the turn signals may be temporarily misted. This
has no influence on the useful life of the lighting system. By switching on
the lights, the area through which the beam of light is projected will quickly
be demisted. However, the edges may continue to be misted.
● Please check at regular intervals that all lighting (especially the exterior
lighting) on your vehicle is functioning properly. This is not only in the inter-
est of your own safety, but also in that of all other road users.
● Before changing a bulb, make sure you have the correct new bulb.
● Do not touch the glass part of the bulb with your bare hands, use a cloth
or paper towel instead. Otherwise, the fingerprints left on the glass will va-
porise as a result of the heat generated by the bulb, be deposited on the
reflector and impair its surface.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

272If and when
● Main headlight lamps: Xenon ⇒
lights.
● Sources of the DRL (daylight) light unit and position.
WARNING
● Take particular care when working on components in the engine com-
partment if the engine is warm - risk of burns!
● Bulbs are highly sensitive to pressure. The glass can break when you
touch the bulb, causing injury.
● The high voltage element of gas discharge bulbs* (xenon light) must
be handled correctly. Otherwise, there is a risk of death.
● When changing bulbs, please take care not to injure yourself on sharp
parts in the headlight housing.
CAUTION
● Remove the ignition key before working on the electric system. If not, a
short circuit could occur.
● Switch off the lights or parking lights before you change a bulb.
For the sake of the environment
Please ask your specialist retailer how to dispose of used bulbs in the prop-
er manner.
Note
● Depending on weather conditions (cold or wet), the front lights, the fog
lights, the tail lights and the turn signals may be temporarily misted. This
has no influence on the useful life of the lighting system. By switching on
the lights, the area through which the beam of light is projected will quickly
be demisted. However, the edges may continue to be misted.
● Please check at regular intervals that all lighting (especially the exterior
lighting) on your vehicle is functioning properly. This is not only in the inter-
est of your own safety, but also in that of all other road users. ●
Before changing a bulb, make sure you have the correct new bulb.
● Do not touch the glass part of the bulb with your bare hands, use a cloth
or paper towel instead. Otherwise, the fingerprints left on the glass will va-
porise as a result of the heat generated by the bulb, be deposited on the
reflector and impair its surface.
Removing the air duct
The air duct has to be removed to gain access to the bulbs
for the right-side headlight.
Fig. 202 Air duct on
right side of vehicle
– Unscrew bolts A
⇒ Fig. 202.
– Detach air duct from guide B
and take it out.

Index
Numbers and Symbols
230 V socket . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
A
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221 Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Adaptive headlights . . . . . . . . . . . . . . . . . . . . . 121 Faulty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Airbag Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 66
Airbag covers . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Curtain airbags . . . . . . . . . . . . . . . . . . . . . . . 41
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . 32
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . . 38
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 30
Air conditioner 2C-Climatronic . . . . . . . . . . . . . . . . . . . . . . 155
Air distribution . . . . . . . . . . . . . . . . . . . . . . 162
Air outlets . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Air purity sensor . . . . . . . . . . . . . . . . . . . . . 160
Air recirculation . . . . . . . . . . . . . . . . . . . . . 159
Air recirculation (automatic) . . . . . . . . . . . 160
Automatic mode . . . . . . . . . . . . . . . . . . . . . 158
Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Defrosting . . . . . . . . . . . . . . . . . . . . . . . . . . 159
ECON Mode (economy) . . . . . . . . . . . . . . . 159 Economical use . . . . . . . . . . . . . . . . . . . . . 163
Key settings . . . . . . . . . . . . . . . . . . . . . . . . 163
Solar-powered blower/sunroof . . . . . . . . . 163
Temperature selection . . . . . . . . . . . . . . . . 158
Air duct Fitting . . . . . . . . . . . . . . . . . . . . . . . . . 266, 273
Removing . . . . . . . . . . . . . . . . . . . . . . 266, 272
Air purity sensor . . . . . . . . . . . . . . . . . . . . . . . . 160
Alcantara . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Alternator Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 70
Ambient lighting . . . . . . . . . . . . . . . . . . . . . . . 124
Anti-lock brake system How it works . . . . . . . . . . . . . . . . . . . . . . . . 189
Anti-theft alarm system . . . . . . . . . . . . . . . . . . 107 Interior monitoring . . . . . . . . . . . . . . . . . . . 108
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Aquaplaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Armrest Storage compartment in front armrest . . . 141
Armrests Adjusting the front armrest . . . . . . . . . . . . 141
Ashtray Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
ASR How the system works . . . . . . . . . . . . . . . . 190
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 69
Athermic windscreen . . . . . . . . . . . . . . . . . . . . 222 Auto-check system . . . . . . . . . . . . . . . . . . . . . . . 76
Automatic car wash tunnel . . . . . . . . . . . . . . . 210
Automatic gearbox
Dynamic gear control programme . . . . . . . 184
Kick-down feature . . . . . . . . . . . . . . . . . . . . 184
multitronic® . . . . . . . . . . . . . . . . . . . . . . . . 180
Paddle levers (tiptronic mode) . . . . . . . . . 186
Safety interlock for ignition key . . . . . . . . . 166
Selector lever lock . . . . . . . . . . . . . . . . . . . 183
Selector lever positions . . . . . . . . . . . . . . . 182
Steering wheel with paddle levers . . . . . . 186
tiptronic . . . . . . . . . . . . . . . . . . . . . . . . . . . 180
tiptronic mode . . . . . . . . . . . . . . . . . . . . . . 185
Automatic headlight control . . . . . . . . . . . . . . 115
Auxiliary heater . . . . . . . . . . . . . . . . . . . . . . . . 164
B
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237 Battery voltage . . . . . . . . . . . . . . . . . . . . . . . 82
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
Disconnection . . . . . . . . . . . . . . . . . . . . . . . 238
Long periods of non-use . . . . . . . . . . 237, 238
Replacing . . . . . . . . . . . . . . . . . . . . . . 237, 238
Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Winter operation . . . . . . . . . . . . . . . . 237, 238
Bicycle rack Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Biodiesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Biodiesel fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 225
305
Index

Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
How to jump start description . . . . . . . . . . . . . 286
I
Identification number . . . . . . . . . . . . . . . . . . . 293
Identification plate . . . . . . . . . . . . . . . . . . . . . . 293
Ignition key Safety interlock . . . . . . . . . . . . . . . . . . . . . . 166
Ignition lock . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
Indicator lamps Glow plug system . . . . . . . . . . . . . . . . . . . . . 70
Main beam headlights . . . . . . . . . . . . . . . . . 70
Indicator lamps - overview . . . . . . . . . . . . . . . . . 65
Instruments Lighting . . . . . . . . . . . . . . . . . . . . . . . . . 62, 119
Interior lights Ambient lighting . . . . . . . . . . . . . . . . . . . . 124
Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Luggage compartment . . . . . . . . . . . . . . . . 125
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Interior mirror With manual anti-dazzle setting . . . . . . . . 130
Interior monitoring . . . . . . . . . . . . . . . . . . . . . . 108
Intermittent wipe . . . . . . . . . . . . . . . . . . . . . . . 128
ISOFIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
J
Jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251, 256
Jump-starting . . . . . . . . . . . . . . . . . . . . . . . . . . 285
Jump leads . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285 K
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 Air conditioner settings . . . . . . . . . . . . . . . 163
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Remote control key . . . . . . . . . . . . . . . . . . . 105
Settings for the driver seat . . . . . . . . . . . . 139
Kick-down feature . . . . . . . . . . . . . . . . . . . . . . . 184
L
Lamps Cruise control . . . . . . . . . . . . . . . . . . . . . . . . 67
Cruise speed . . . . . . . . . . . . . . . . . . . . . . . . . 67
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115 Instruments . . . . . . . . . . . . . . . . . . . . . 62, 119
Lights Adaptive headlights . . . . . . . . . . . . . . . . . . 121
Automatic headlight control . . . . . . . . . . . 115
Coming home function . . . . . . . . . . . . . . . 117
Cornering light . . . . . . . . . . . . . . . . . . . . . . 121
Dipped beam headlights faulty . . . . . . . . . . 83
Dynamic headlight range control . . . . . . . 120
Headlight flasher . . . . . . . . . . . . . . . . . . . . 123
Leaving home function . . . . . . . . . . . . . . . 117
Parking light . . . . . . . . . . . . . . . . . . . . . . . . 123
Reverse lights faulty . . . . . . . . . . . . . . . . . . . 83
Switching on and off . . . . . . . . . . . . . . . . . 115
Xenon lights . . . . . . . . . . . . . . . . . . . . . . . . 120
Load compartment in the luggage compart- ment
see Loading the luggage compartment . . . 16
Loading the luggage compartment . . . . . . . . . . 16 Locking the doors manually if the central lock-
ing fails to work
Locking the doors manually if the centrallocking fails to work . . . . . . . . . . . . . . . . 103
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Long periods of non-use Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Luggage compartment . . . . . . . . . . . . . . . . . . . 142 Extending . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Loading . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142
Ski bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
see also Loading the luggage compartment . .16
Luggage rack see Roof rack . . . . . . . . . . . . . . . . . . . . . . . 145
M
Main beam headlights . . . . . . . . . . . . . . . 115, 122
Maintenance Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Maintenance and cleaning . . . . . . . . . . . . . . . 209
Manual gearbox . . . . . . . . . . . . . . . . . . . . . . . . 179
Mirrors Activating stored settings . . . . . . . . . . . . . 138
Automatic exterior mirror adjustment . . . . 137
Heated exterior mirrors . . . . . . . . . . . . . . . 131
Storing settings . . . . . . . . . . . . . . . . . . . . . 138
Vanity mirrors . . . . . . . . . . . . . . . . . . . . . . . 126
Mobile phones and two-way radios . . . . . . . . 222
multitronic® . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 Driving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
309
Index