
Inspecting and Replenishing
258
The battery
Working on the battery
The battery is located in the engine compartment below a plastic
cover*.
– Press the interlock on the side of the battery cover ⇒fig. 196,
fold the battery cover out and pull it out.
– The installtion of the battery cover takes place in the reverse order.
Removal and installation of the battery is not recommended since it can,
under certain circumstances, lead to major damage. Contact a specialist
garage.
There is a risk of injuries, scalding, accidents and burns when carrying out
any work on the battery and on the electrical system. It is essential to comply with the warning instructions stated below
⇒ and with the
general applicable rules of safety.
WARNING
•The battery acid is strongly corrosive and must, therefore, be
handled with the greatest of care. Always wear protective gloves,
eye and skin protection when handling batteries. Corrosive fumes
in the air irritate the air passages and lead to conjunctivitis and
inflammation of the air passages in the lungs. Battery acid
corrodes dental enamel and creates deep wounds after contact
with the skin which take a long time to heal. Repeated contact with
diluted acids causes skin diseases (inflammations, ulcers, slin
cracks). Acids coming into contact with water are diluted accompa-
nied by significant development of heat.
•Do not tilt the battery otherwise battery electrolyte may flow out
of the battery vent openings. Protect the eyes with safety glasses
or a shield! There is the danger of suffering blindness! If any
battery electrolyte gets into your eye, rinse out your eye immedi-
ately with clear water for several minutes. Contact a doctor without
delay.
•Splashes of acid on your skin or clothes should be neutralised
as soon as possible using soap suds and then rinsed with plenty
of water. Contact a doctor immediately if you swallow battery elec-
trolyte.
•Keep batteries out of the reach of children.
•Hydrogen is released when you charge a battery and a highly
explosive gas mixture is produced. An explosion can be caused
through sparkling over during unclamping or loosening of the
cable plug while the ignition is on.
•Bridging of the poles will create a short circuit (e.g. through
metal objects, cables). Possible consequences of a short circuit:
Melting of lead struts, explosion and burning of the battery, jets of
acid spurting out.
Fig. 196 Engine
compartment: The
battery
s24s.book Page 258 Thursday, November 24, 2005 12:27 PM

Index305
Index
A
Abroad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Warning light . . . . . . . . . . . . . . . . . . . . . . 38
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . 270
Adjusting seats . . . . . . . . . . . . . . . . . . . 83, 179 electrically . . . . . . . . . . . . . . . . . . . . . . . . 84
Adjusting the steering wheel . . . . . . . . . . . . 138
Airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 deactivate . . . . . . . . . . . . . . . . . . . . . . . . 199
Deployment . . . . . . . . . . . . . . . . . . . . . . 191
Front airbags . . . . . . . . . . . . . . . . . . . . . 192
Head airbags . . . . . . . . . . . . . . . . . . . . . 197
Side airbags . . . . . . . . . . . . . . . . . . . . . . 195
Warning light . . . . . . . . . . . . . . . . . . . . . . 35
Airbag system . . . . . . . . . . . . . . . . . . . . . . . 190 Warning light . . . . . . . . . . . . . . . . . . . . . . 35
Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
An overview Cockpit . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Antilock Brake System . . . . . . . . . . . . . . . . 218
Antilock brake system (ABS) Warning light . . . . . . . . . . . . . . . . . . . . . . 38
Anti-theft alarm system . . . . . . . . . . . . . . . . . 54
Ashtrays . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Auto Check Control . . . . . . . . . . . . . . . . . . . . 26 Auto Computer . . . . . . . . . . . . . . . . . . . . . . . . 18
Automatic driving lamp control . . . . . . . . . . . . 64
Automatic gearbox . . . . . . . . . . . . . . . . . . . . 149
Emergency programme . . . . . . . . . 154, 161
Kickdown . . . . . . . . . . . . . . . . . . . . . . . . 152
Selector lever-emergency unlocking . . . 154
Tiptronic . . . . . . . . . . . . . . . . . . . . . . . . . 153
Automatic gearbox DSG . . . . . . . . . . . . . . . 156 Kickdown . . . . . . . . . . . . . . . . . . . . . . . . 159
Selector lever-emergency unlocking . . . 162
Tiptronic . . . . . . . . . . . . . . . . . . . . . . . . . 160
Automatic seat adjustment . . . . . . . . . . . . . . 85
Automatic vehicle wash systems . . . . . . . . . 234
Avoiding damage to your vehicle . . . . . . . . . 228
B
Before setting off . . . . . . . . . . . . . . . . . . . . . 178
Belt tensioners . . . . . . . . . . . . . . . . . . . . . . . 188
Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Biofuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Bluetooth™ . . . . . . . . . . . . . . . . . . . . . . . . . 173
Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Boot lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Brake Handbrake . . . . . . . . . . . . . . . . . . . . . . . 143
Warning light . . . . . . . . . . . . . . . . . . . . . . 40 Brake Assist . . . . . . . . . . . . . . . . . . . . . . . . . 218
Brake booster . . . . . . . . . . . . . . . . . . . . . . . . 217
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 256
Brake pads
Warning light . . . . . . . . . . . . . . . . . . . . . . . 36
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Bulbs Warning light . . . . . . . . . . . . . . . . . . . . . . . 33
Buttons for central locking . . . . . . . . . . . . . . . 48
Buttons on the driver's door Power windows . . . . . . . . . . . . . . . . . . . . . 56
C
Car jack . . . . . . . . . . . . . . . . . . . . . . . . 274, 280
Catalytic converter . . . . . . . . . . . . . . . . . . . . 222
Central locking system . . . . . . . . . . . . . . . . . . 46locking . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
unlocking . . . . . . . . . . . . . . . . . . . . . . . . . 47
Changing a wheel . . . . . . . . . . . . . . . . . . . . 276
Changing bulbs . . . . . . . . . . . . . . . . . . . . . . 294
Changing the engine oil . . . . . . . . . . . . . . . . 253
Changing wheels around . . . . . . . . . . . . . . . 265
Charging the battery . . . . . . . . . . . . . . . . . . 260 Warning light . . . . . . . . . . . . . . . . . . . . . . . 40
Chassis number . . . . . . . . . . . . . . . . . . . . . . 303
Child safety . . . . . . . . . . . . . . . . . . . . . . . . . 202 Side airbags . . . . . . . . . . . . . . . . . . . . . . 205
s24s.book Page 305 Thursday, November 24, 2005 12:27 PM

Index
306
Child safety locks . . . . . . . . . . . . . . . . . . . . . 45
Child safety seats
ISOFIX system . . . . . . . . . . . . . . . . . . . 210
Child seat . . . . . . . . . . . . . . . . . . . . . . . . . . 206 Classification into groups . . . . . . . . . . . 206
on the front passenger seat . . . . . . . . . 204
Safety instructions . . . . . . . . . . . . . . . . . 202
Use of child seats . . . . . . . . . . . . . . . . . 206
Children and safety . . . . . . . . . . . . . . . . . . . 202
Chrome parts . . . . . . . . . . . . . . . . . . . . . . . 236
Cigarette lighter . . . . . . . . . . . . . . . . . . . . . 106
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Climatronic Air outlet vents . . . . . . . . . . . . . . . . . . . 133
Defrosting windows . . . . . . . . . . . . . . . . 131
Recirculated air mode . . . . . . . . . . . . . . 132
Setting temperature . . . . . . . . . . . . . . . . 132
Climatronic (automatic air conditioning) . . . 128
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Clothes hooks . . . . . . . . . . . . . . . . . . . . . . . 117
Cockpit An overview . . . . . . . . . . . . . . . . . . . . . . . 11
Compartments . . . . . . . . . . . . . . . . . . . . . . 108
Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Convenience operation . . . . . . . . . . . . . . . . . 58
Converting/masking over headlights . . . . . . 228
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 253 replenishing . . . . . . . . . . . . . . . . . . . . . . 255
Warning light . . . . . . . . . . . . . . . . . . . . . . 35 Coolant level
Warning light . . . . . . . . . . . . . . . . . . . . . . 35
Coolant quantity Warning light . . . . . . . . . . . . . . . . . . . . . . 35
Coolant temperature gauge . . . . . . . . . . . . . 14
Coolant temperature/coolant level Warning light . . . . . . . . . . . . . . . . . . . . . . 35
Correct seated position . . . . . . . . . . . . . . . . 179
Counter for distance driven . . . . . . . . . . . . . . 15
Cruise control system . . . . . . . . . . . . . . . . . 146
Cup holder at the front . . . . . . . . . . . . . . . . . . . . . . . 103
at the rear . . . . . . . . . . . . . . . . . . . . . . . 104
D
Deactivating an airbag . . . . . . . . . . . . . . . . 199
Defrosting rear window . . . . . . . . . . . . . . . . . 72
De-icing the windows . . . . . . . . . . . . . . . . . 236
Detachable towing device . . . . . . . . . . . . . . 231
Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Diesel enginesStarting engine . . . . . . . . . . . . . . . . . . . 141
Diesel particle filter . . . . . . . . . . . . . . . . . . . . 33
Digital clock . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Dipstick . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Direction indicators . . . . . . . . . . . . . . . . . . . . 68 Warning light . . . . . . . . . . . . . . . . . . . . . . 32
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Distance driven . . . . . . . . . . . . . . . . . . . . . . . 15
Door
Child safety locks . . . . . . . . . . . . . . . . . . . 45
Driver-steering recommendation . . . . . . . . . 216
Driving economically . . . . . . . . . . . . . . . . . . 223
Dynamo Warning light . . . . . . . . . . . . . . . . . . . . . . 40
E
EDL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Electric sliding/tilting roof . . . . . . . . . . . . . . . . 59
Electrically adjustable exterior mirrors . . . . . . 80
Electronic Differential Lock . . . . . . . . . . . . . 214
Electronic immobiliserWarning light . . . . . . . . . . . . . . . . . . . . . . 32
Electronic stability programme . . . . . . . . . . 213
Electronic stability programme (ESP) Warning light . . . . . . . . . . . . . . . . . . . . . . 40
Engine Starting . . . . . . . . . . . . . . . . . . . . . . . . . . 140
switch off . . . . . . . . . . . . . . . . . . . . . . . . 141
Engine compartment Safety instructions . . . . . . . . . . . . . . . . . 248
Engine electronics Warning light . . . . . . . . . . . . . . . . . . . . . . 34
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 Changing . . . . . . . . . . . . . . . . . . . . . . . . 253
changing . . . . . . . . . . . . . . . . . . . . . . . . 253
check . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
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Index
310
The air conditioning system . . . . . . . . . . . . 123
Air outlet vents . . . . . . . . . . . . . . . . . . . 127
Defrosting windows . . . . . . . . . . . . . . . . 125
Recirculated air mode . . . . . . . . . . . . . . 126
The armrest at the rear . . . . . . . . . . . . . . . . . 91
The automatic wiper/washer system . . . . . . 75
The battery . . . . . . . . . . . . . . . . . . . . . . 40, 258 changing . . . . . . . . . . . . . . . . . . . . . . . . 261
Charge . . . . . . . . . . . . . . . . . . . . . . . . . 260
Inspecting the electrolyte level . . . . . . . 260
Operation in winter . . . . . . . . . . . . . . . . 260
The CD changer . . . . . . . . . . . . . . . . . . . . . 176
The electronic immobiliser . . . . . . . . . . . 32, 45
The outside temperature . . . . . . . . . . . . . . . . 20
The radiator fan . . . . . . . . . . . . . . . . . . . . . 256
The roof luggage rack system . . . . . . . . . . 102
Thickness of brake pads Warning light . . . . . . . . . . . . . . . . . . . . . . 36
Tilting roof . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Tiptronic . . . . . . . . . . . . . . . . . . . . . . . . . . . 149 automatic gearbox DSG . . . . . . . . . . . . 160
Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Towing a trailer . . . . . . . . . . . . . . . . . . . . . . 229
Towing a vehicle . . . . . . . . . . . . . . . . . . . . . 283
Towing device . . . . . . . . . . . . . . . . . . . . . . . 231
Towing protection monitoring . . . . . . . . . . . . 55
Tow-starting a vehicle . . . . . . . . . . . . . . . . . 283
Tow-starting and towing vehicle Automatic gearbox . . . . . . . . . . . . 155, 162
Traction Control System . . . . . . . . . . . . . . . 215 Traction control system (TCS)
Warning light . . . . . . . . . . . . . . . . . . . . . . 39
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229 General Maintenance . . . . . . . . . . . . . . 229
Transporting children . . . . . . . . . . . . . . . . . 202
Tread depth . . . . . . . . . . . . . . . . . . . . . . . . . 265
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . 68
Turn signals . . . . . . . . . . . . . . . . . . . . . . . . . 68 Warning light . . . . . . . . . . . . . . . . . . . . . . 32
Two-way radio systems . . . . . . . . . . . . . . . 175
Type plate . . . . . . . . . . . . . . . . . . . . . . . . . . 303
Tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 264 Winter tyres . . . . . . . . . . . . . . . . . . . . . . 268
U
Underbody protection . . . . . . . . . . . . . . . . . 238
Unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . 46Remote control . . . . . . . . . . . . . . . . . . . . 52
Uphill-Start off-Assist . . . . . . . . . . . . . . . . . 219
V
Vanity mirror . . . . . . . . . . . . . . . . . . . . . . . . . 73
Vehicle condition . . . . . . . . . . . . . . . . . . . . . . 26
Vehicle data sticker . . . . . . . . . . . . . . . . . . . 303
Vehicle immobiliser . . . . . . . . . . . . . . . . . . . . 45 Warning light . . . . . . . . . . . . . . . . . . . . . . 32
Vehicle tool kit . . . . . . . . . . . . . . . . . . . . . . . 274
Ventilation Auxiliary ventilation . . . . . . . . . . . . . . . . 134 Visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
W
Warning lights . . . . . . . . . . . . . . . . . . . . . . . . 30
Warning symbols . . . . . . . . . . . . . . . . . . . . . . 30
Warning triangle . . . . . . . . . . . . . . . . . . . . . 273
Washing . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
with high-pressure cleaner . . . . . . . . . . . 235
Washing the vehicle . . . . . . . . . . . . . . . . . . 233
Washing vehicle by hand . . . . . . . . . . . . . . 234
Wax treatment . . . . . . . . . . . . . . . . . . . . . . . 235
Wheel Changing . . . . . . . . . . . . . . . . . . . . . . . . 276
Spare . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Wheel bolts . . . . . . . . . . . . . . . . . . . . . . . . . 267
Wheel rims . . . . . . . . . . . . . . . . . . . . . . . . . 263
Wheel trim . . . . . . . . . . . . . . . . . . . . . . . . . . 278
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 De-icing . . . . . . . . . . . . . . . . . . . . . . . . . 236
Window lifter . . . . . . . . . . . . . . . . . . . . . . . . . 56
Windows De-icing . . . . . . . . . . . . . . . . . . . . . . . . . 236
Windscreen washer nozzles . . . . . . . . . . . . . 75
Windscreen Wiper and Washer System . . . 262 Warning light . . . . . . . . . . . . . . . . . . . . . . 36
Windscreen wipers . . . . . . . . . . . . . . . . . . . . 75
Windshield washer fluid reservoir . . . . . . . . 262 Warning light . . . . . . . . . . . . . . . . . . . . . . 36
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