
228If and when
NumberConsumerAmps42Horn2043Panoramic roof3044Windscreen wipers2045Heated rear window30
46Radio/Bluetooth/USB + AUX-In/DC-DC converter
for Start-Stop20
47Climatronic/autoclima/Diagnosis/Automatic
gearbox (ZSS lock)5
48Locking unit2549Front left window raiser2550Rear electric windows3051Right front window raiser2552Alarm15
53Electro-kinetic pump relay/bi-turbo fuel control
unit15
54Reverse light d)
/ Fog light/ Cornering light1555Transformer on15, 20 b)56Rear window wiper10
57Left daytime running light/ Turn signals/ Right
dipped beam/ Number plate light c)15
58Right daytime running light/ Rear fog light/ Left
dipped beam/ Main bean relay/ X Relay c)15
a)
If it is LPG.
b) Ampere rating according to motorisation.
c) If Start-Stop is installed, lights and/or AFS are automatically switched on.
d) Only with automatic transmission and/or Start-Stop, automatic light-on and/or AFS. Fuses below steering wheel in relay holder
PTC fuses
NumberConsumerAmps1Supplementary electrical heating using air402Supplementary electrical heating using air403Supplementary electrical heating using air40
AUX 1 Fuses
NumberConsumerAmps1Navigator, Bluetooth, MDI, radio control lever202Instrument panel/ESC Relay5
AUX 2 Fuses
NumberConsumerAmps1Headlight washer pump20
AUX 3 Fuses
NumberConsumerAmps1Trailer control unit152Trailer control unit203Trailer control unit20

238If and when
Changing the fog light bulbs
Fog light bulb
Fig. 158 Fog light
Fig. 159 Fog light –
Remove the bolt ⇒ Fig. 158 A
from the fog light grille with a
screwdriver.
– Subsequently, remove the clips located on the edge of the grill
with gentle leverage.
– Remove the bolts (3x) ⇒ Fig. 159 B
to remove the fog light.
– Remove the metal clip situated on the upper part of the fog
light pulling towards the exterior of the vehicle ⇒ Fig. 159 C
.
Remove the bulb holder
Fig. 160 Fog light
– Remove connector ⇒ Fig. 160 A
from the bulb.
– Turn bulb holder ⇒ Fig. 160 B
to the left and pull.
– Remove the bulb by pressing on the bulb holder and turning it
anticlockwise at the same time.

243
If and when
Jump leads
Jump leads must comply with standard DIN 72553 (see cable manufactur-
er's instructions). The wire cross section must be at least 25 mm 2
for petrol
engines and at least 35 mm 2
for diesel engines.
Note
● The vehicles must not touch each other, otherwise electricity could flow
as soon as the positive terminals are connected.
● The discharged battery must be properly connected to the on-board net-
work.
How to jump start: description
Fig. 168 Diagram of con-
nections for vehicles
without Start-Stop sys-
tem
Fig. 169 Diagram of con-
nections for vehicles
with Start-Stop system
Jump lead terminal connections
1. Switch off the ignition of both vehicles ⇒
.
2. For vehicles without Start-Stop system :
– Connect one end of the red jump lead to the positive +
termi-
nal of the vehicle with the flat battery A ⇒ Fig. 168.
– Connect the other end of the red jump lead to the positive ter-
minal +
in the vehicle providing assistance B.
– Connect one end of the black jump lead to the negative terminal
–
of the vehicle providing assistance B ⇒ Fig. 168.
– Connect the other end of the black jump lead X
to a solid met-
al component bolted to the engine block or to the engine block
itself of the vehicle with the flat battery. However, connect it to
a point as far as possible from the battery A
.
3. For vehicles with Start-Stop system :
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

244If and when
–Connect one end of the red jump lead to the positive +
termi-
nal of the vehicle with the flat battery A ⇒ Fig. 169.
– Connect the other end of the red jump lead to the positive ter-
minal +
in the vehicle providing assistance B.
– Connect one end of the black jump lead X
to a suitable ground
terminal, a solid piece of metal in the engine block, or to the en-
gine block ⇒ Fig. 169.
– Connect the other end of the black jump lead X
to a solid met-
al component bolted to the engine block or to the engine block
itself of the vehicle with the flat battery. However, connect it to
a point as far as possible from the battery A
.
4. Position the leads in such a way that they cannot come into contact with any moving parts in the engine compartment.
Starting
5. Start the engine of the vehicle with the boosting battery and let it run at idling speed.
6. Start the engine of the vehicle with the flat battery and wait two or three minutes until the engine is “running”.
Removing the jump leads
7. Before you remove the jump leads, switch off the dipped beam headlights (if they are switched on).
8. Turn on the heater blower and heated rear window in the vehi- cle with the flat battery. This helps minimise voltage peaks
which are generated when the leads are disconnected.
9. When the engine is running, disconnect the leads in reverse or- der to the details given above. Connect the battery clamps so they have good metal-to-metal contact with
the battery terminals.
If the engine fails to start, switch off the starter after about 10 seconds and
try again after about half a minute.
WARNING
● Please note the safety warnings referring to working in the engine
compartment ⇒ page 195, Working in the engine compartment.
● The battery providing assistance must have the same voltage as the
flat battery (12V) and approximately the same capacity (see imprint on
battery). Failure to comply could result in an explosion.
● Never use jump leads when one of the batteries is frozen. Danger of
explosion! Even after the battery has thawed, battery acid could leak and
cause chemical burns. If a battery freezes, it should be replaced.
● Keep sparks, flames and lighted cigarettes away from batteries, dan-
ger of explosion. Failure to comply could result in an explosion.
● Observe the instructions provided by the manufacturer of the jump
leads.
● Do not connect the negative cable from the other vehicle directly to
the negative terminal of the flat battery. The gas emitted from the battery
could be ignited by sparks. Danger of explosion.
● Do not attach the negative cable from the other vehicle to parts of the
fuel system or to the brake line.
● The non-insulated parts of the battery clamps must not be allowed to
touch. The jump lead attached to the positive battery terminal must not
touch metal parts of the vehicle, this can cause a short circuit.
● Position the leads in such a way that they cannot come into contact
with any moving parts in the engine compartment.
● Do not lean on the batteries. This could result in chemical burns.

247
If and when
Do not pull too hard with the towing vehicle and take care to avoid jerking
the tow rope. When towing on an unpaved road, there is always a risk of
overloading and damaging the anchorage points.
The ignition of the vehicle being towed must be switched on to prevent the
steering wheel from locking and also to allow the use of the turn signals,
horn, windscreen wipers and washers.
As the brake servo does not work if the engine is not running, you must ap-
ply considerably more pressure to the brake pedal than you normally would.
As the power assisted steering does not work if the engine is not running,
you will need more strength to steer than you normally would.
Towing vehicles with an automatic gearbox
● Put the selector lever into position “N”.
● Do not drive faster than 50 km/h (30 mph).
● Do not tow further than 50 km (30 miles).
● If a breakdown vehicle is used, the vehicle must be towed with the front
wheels raised.
Note
● Observe legal requirements when towing or tow-starting.
● Switch on the hazard warning lights of both vehicles. However, observe
any regulations to the contrary.
● For technical reasons, vehicles with an automatic gearbox must not be
tow-started.
● If damage to your vehicle means that there is no lubricant in the gear-
box, you must raise the driven wheels while the vehicle is being towed.
● If the vehicle has to be towed more than 50 km (30 miles), the front
wheels should be raised during towing, and towing should be carried out by
a qualified person. ●
The steering wheel is locked when the vehicle has no electrical power.
The vehicle must then be towed with the front wheels raised. Towing should
be carried out by a qualified person.
● The towline anchorage should always be kept in the vehicle.
Towline anchoragesFig. 170 Fitting the tow-
line anchorage to front of
the vehicle
Fitting the towline anchorage
– Take the towline anchorage from the on-board tool set.
– Remove the front cover by pressing down on its left-hand side.
For FR finishes, press down and pull outwards.
– Bolt the anchorage to its limit to the left, in the direction of the
arrow ⇒ Fig. 170.
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

Index
A
ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 69
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Acoustic warning . . . . . . . . . . . . . . . . . . . . . . . 139
Adaptive headlights . . . . . . . . . . . . . . . . . . . . . 101
AFS headlight bulbs . . . . . . . . . . . . . . . . . . . . . 237
Airbag covers . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 30
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . 33
side airbags . . . . . . . . . . . . . . . . . . . . . . . . . 37
Air conditioner Climatronic . . . . . . . . . . . . . . . . . . . . . . . . . 134
General notes . . . . . . . . . . . . . . . . . . . . . . . 136
Air conditioning . . . . . . . . . . . . . . . . . . . . . . . . 131
Air outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Air recirculation Semi-automatic air conditioning . . . . . . . . 133
Air recirculation mode Climatronic . . . . . . . . . . . . . . . . . . . . . . . . . 136
Alarm system Switching off . . . . . . . . . . . . . . . . . . . . . . . . . 88
Alternator Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 74
Anti-lock brake system . . . . . . . . . . . . . . . . . . . 164 control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 69 Anti-theft alarm system . . . . . . . . . . . . . . . . . . . 88
Switching off . . . . . . . . . . . . . . . . . . . . . . . . . 88
Anti-theft wheel bolts . . . . . . . . . . . . . . . . . . . 221
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Aquaplaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Aspects to note before setting off . . . . . . . . . . . . 8
ASR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
ASR (Traction control system) Control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 70
Audible warning . . . . . . . . . . . . . . . . . . . . . . . . . 19
Automatic anti-dazzle interior rear vision mirror Activating the anti-dazzle function . . . . . . 110
Deactivating the anti-dazzle function . . . . 110
Automatic car washing tunnel . . . . . . . . . . . . . 177
Automatic gearbox . . . . . . . . . . . . . . . . . . . . . . 148 Kick-down feature . . . . . . . . . . . . . . . . . . . . 154
Selector lever positions . . . . . . . . . . . . . . . 152
Automatic lighting . . . . . . . . . . . . . . . . . . . . . . . 99
Automatic windscreen wiper/washer . . . . . . . 107
AUX/USB input connection . . . . . . . . . . . . . . . 125
Auxiliary audio input connection (AUX) . . . . . 125
B
Ball coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Battery Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Winter conditions . . . . . . . . . . . . . . . . . . . . 209 Before setting off . . . . . . . . . . . . . . . . . . . . . . . . . 8
Biodiesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Biodiesel fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Brake pads . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
Brake servo . . . . . . . . . . . . . . . . . . . . . . . . 163, 168
Brake system . . . . . . . . . . . . . . . . . . . . . . . . . . 208 warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 71
Braking distance . . . . . . . . . . . . . . . . . . . . . . . 168
Bulb change double headlight . . . . . . . . . . . . . . . . . . . . 233
Single headlight bulb . . . . . . . . . . . . . . . . 231
Bulb changes General notes . . . . . . . . . . . . . . . . . . . . . . . 229
Bulb defect Control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 69
Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105, 139
C
Car care Exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Car phone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Catalytic converter . . . . . . . . . . . . . . . . . . . . . . 169
CCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
269
Index

Central lock buttonLocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Central locking . . . . . . . . . . . . . . . . . . . . . . . . . . 80 Automatic speed-dependent locking . . . . . 82
Emergency unlocking system . . . . . . . . . . . 82
Locking system for involuntary unlocking . 82
Selective unlocking system . . . . . . . . . . . . . 81
Unlocking system . . . . . . . . . . . . . . . . . . . . . 82
Cetane number . . . . . . . . . . . . . . . . . . . . . . . . . 194
Changing bulbs interior light and reading light . . . . . . . . . 241
Changing bulbs on tail lights . . . . . . . . . 239, 240
Changing gear see Manual gearbox . . . . . . . . . . . . . . . . . . 147
Changing gear in tiptronic mode . . . . . . . . . . 151
Changing single headlight bulbs Turn signal bulb . . . . . . . . . . . . . . . . . . . . . 231
Changing the AFS headlight bulbs Xenon lights . . . . . . . . . . . . . . . . . . . . . . . . 237
Changing the bulbs AFS headlight bulbs . . . . . . . . . . . . . . . . . . 237
fog light bulbs . . . . . . . . . . . . . . . . . . . . . . 238
luggage compartment light . . . . . . . . . . . . 242
number plate light . . . . . . . . . . . . . . . . . . . 241
Side turn signal lights . . . . . . . . . . . . . . . . 240
Changing the main headlight bulb turn signal lights . . . . . . . . . . . . . . . . . . . . 235
Changing the main headlight bulbs turn signal lights . . . . . . . . . . . . . . . . . . . . 237 Changing the single headlight bulbs
Dipped/main beam . . . . . . . . . . . . . . . . . . 232
Side light . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Changing windscreen wiper blades . . . . . . . . 205
Chassis number . . . . . . . . . . . . . . . . . . . . . . . . 250
Checking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Checking battery electrolyte level . . . . . . . . . . 210
Checking engine oil level . . . . . . . . . . . . . . . . . 200
Child safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Child seat Categorisation in groups . . . . . . . . . . . . . . . 44
Group 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Group 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Group 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Groups 0 and 0+ . . . . . . . . . . . . . . . . . . . . . . 44
Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . 42
Securing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Child seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 ISOFIX system . . . . . . . . . . . . . . . . . . . . . . . . 48
on the front passenger seat . . . . . . . . . . . . . 30
Top Tether system . . . . . . . . . . . . . . . . . . . . 49
Cigarette lighter . . . . . . . . . . . . . . . . . . . . . . . . 124
Cleaning alloy wheel rims . . . . . . . . . . . . . . . . 181
Cleaning chrome . . . . . . . . . . . . . . . . . . . . . . . 180
Cleaning engine compartment . . . . . . . . . . . . 182
Cleaning steel wheel rims . . . . . . . . . . . . . . . . 181
Cleaning windows . . . . . . . . . . . . . . . . . . . . . . 179
Climatronic automatic mode . . . . . . . . . . . . . . . . . . . . . 135
controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
General notes . . . . . . . . . . . . . . . . . . . . . . . 136
manual mode . . . . . . . . . . . . . . . . . . . . . . . 135 Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Cloth seat covers cleaning . . . . . . . . . . . . . . . . 183
Cockpit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Coming Home function . . . . . . . . . . . . . . . . . . 102
Compartment for on-board documentation . . 120
Control
Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . 111
control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Control lamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Control lighting . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Controls Electric windows . . . . . . . . . . . . . . . . . . . . . . 93
Convenience closing Sliding/tilting sunroof . . . . . . . . . . . . . . . . . 97
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Convenience opening Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . 202, 203
Coolant level . . . . . . . . . . . . . . . . . . . . . . . . . . . 203 control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 73
Coolant loss . . . . . . . . . . . . . . . . . . . . . . . . . . . 203
Coolant temperature control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 73
Safety instructions . . . . . . . . . . . . . . . . . . . . 74
Correct adjustment of front head restraints . . . 13
Correct sitting position front passenger . . . . . . . . . . . . . . . . . . . . . . 11
Incorrect sitting position . . . . . . . . . . . . . . . 14
passenger . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Cruise control Control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 71
Cruise control system . . . . . . . . . . . . . . . . . . . . 159
270 Index

Cruise speed . . . . . . . . . . . . . . . . . . . . . . . . . . . 159Control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 71
D Danger of fitting a child seat on the front pas- senger seat . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Dash panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Dash panel cleaning . . . . . . . . . . . . . . . . . . . . 182
Daytime driving lights . . . . . . . . . . . . . . . . . . . 100
Deactivating front passenger airbag Safety notes . . . . . . . . . . . . . . . . . . . . . . . . . 40
Deactivating the airbag Front passenger front airbag . . . . . . . . . . . . 40
Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194
Diesel engine Winter driving . . . . . . . . . . . . . . . . . . . . . . . 195
Diesel engine particulate filter . . . . . . . . . . . . 170
Differential lock . . . . . . . . . . . . . . . . . . . . . . . . 166
Differential lock fault (EDL) control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 70
Digital clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Dipped beam headlights . . . . . . . . . . . . . . . . . . 98
Disposal Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Seat belt tensioners . . . . . . . . . . . . . . . . . . . 27
Door lock cylinders . . . . . . . . . . . . . . . . . . . . . . 180
Door release lever . . . . . . . . . . . . . . . . . . . . . . . 53
Doors Childproof locks . . . . . . . . . . . . . . . . . . . . . . 84
control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 72
Double headlight . . . . . . . . . . . . . . . . . . . . . . . 233 Double headlight bulb change
dipped beam headlights . . . . . . . . . . . . . . 235
main beam headlights . . . . . . . . . . . . . . . . 234
side light . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Driver see Correct sitting position . . . . . . . 10, 11, 12
Driveshaft differential XDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Driving Driving abroad . . . . . . . . . . . . . . . . . . . . . . 173
Economically / Environmentally friendly . 171
With a trailer . . . . . . . . . . . . . . . . . . . . 173, 175
Driving abroad . . . . . . . . . . . . . . . . . . . . . . . . . 173 Headlights . . . . . . . . . . . . . . . . . . . . . . . . . 173
Driving safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Duplicate keys . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Dust filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Dynamic headlight range control . . . . . . . . . . 100
E
Economical driving . . . . . . . . . . . . . . . . . . . . . . 171
EDL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166 control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 69
Electro-hydraulic steering control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 73
Electronic differential lock . . . . . . . . . . . . . . . . 166 control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 69
Electronic immobiliser . . . . . . . . . . . . . . . . . . . 140
Electronic stability control description . . . . . . . . . . . . . . . . . . . . . . . . . 139
Electronic Stability Control . . . . . . . . . . . . 70, 165 Electronic Stability Control (ESC)
control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 70
Emission control system control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 73
Engine Running in . . . . . . . . . . . . . . . . . . . . . . . . . 168
Engine compartment Working in the engine compartment . . . . 195
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . 202 G 12 plus-plus . . . . . . . . . . . . . . . . . . . . . . 202
G 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
Specifications . . . . . . . . . . . . . . . . . . . . . . . 202
Engine fault control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 68
Engine management control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 67
Engine oil Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Checking engine oil level . . . . . . . . . . . . . . 200
Oil properties . . . . . . . . . . . . . . . . . . . . . . . 199
Specifications . . . . . . . . . . . . . . . . . . . . . . . 198
Topping up . . . . . . . . . . . . . . . . . . . . . . . . . 201
Engine oil dipstick . . . . . . . . . . . . . . . . . . . . . . 200
Engine oil pressure control lamp . . . . . . . . . . . . . . . . . . . . . . . . . 68
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 Environmental friendliness . . . . . . . . . . . . 172
Environmentally friendly driving . . . . . . . . . . . 171
Environmental tip Avoiding pollution . . . . . . . . . . . . . . . . . . . 190
ESC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70, 165 see also Electronic Stability Control . . . . . 139
271
Index