Checking and refilling levels
236•A highly explosive mixture of gases is released when the battery is
under charge. The batteries should be charged in a well-ventilated room
only.•Keep children away from acid and batteries.•Before working on the electrical system, you must switch off the
engine, the ignition and all consumers. The negative cable on the battery
must be disconnected. When a light bulb is changed, you need only switch
off the light.•Deactivate the anti-theft alarm by unlocking the vehicle before you
disconnect the battery! The alarm will otherwise be triggered.•When disconnecting the battery from the vehicle electrical system,
disconnect first the negative cable and then the positive cable.•Switch off all electrical consumers before reconnecting the battery.
Reconnect first the positive cable and then the negative cable. Never
reverse the polarity of the connections. This could cause an electrical fire.•Never charge a frozen battery, or one which has thawed. This could
result in explosions and chemical burns. Always replace a battery which
has frozen. A flat battery can freeze at temperatures around 0°C.•Ensure that the vent hose is always connected to the battery.•Never use a defective battery. This could cause an explosion. Replace a
damaged battery immediately.Caution
•Never disconnect the battery if the ignition is switched on or if the engine
is running. This could damage the electrical system or electronic compo-
nents.•Do not expose the battery to direct sunlight over a long period of time, as
the intense ultraviolet radiation can damage the battery housing.•If the vehicle is left standing in cold conditions for a long period, protect
the battery from frost. If it freezes it will be damaged.
Charging the battery
A fully-charged battery is important for reliable starting.– Note the warnings ⇒ in “Important safety warnings for
handling a vehicle battery” on page 235 and ⇒.
– Switch off the ignition and all electrical equipment.
– Only if fast-charging: both battery cables must be disconnected (first the negative cable, then the positive cable).
– Connect the charger cables to the battery terminals, noting the colour code (red = positive; black or brown = negative).
– Now connect the battery charger to the power socket and switch on.
– After charging the battery: switch off the battery charger and disconnect the power point cable.
– Finally disconnect the charger cables from the battery.
– If necessary, reconnect both battery cables to the battery (first the positive cable, then the negative cable).When charging with a low current (for instance with a small battery charger)
the battery does not normally have to be disconnected. However, both
battery cables must be disconnected before fast-charging the battery with a
high current. However, always follow the instructions given by the manufac-
turer of the battery charger.
The fast-charging procedure for a battery is dangerous ⇒ in “Important
safety warnings for handling a vehicle battery” on page 235, as it requires a
special charger and the corresponding level of knowledge. We therefore
recommend that this work should only be performed by a qualified workshop.
WARNING (continued)
exeo_EN.book Seite 236 Montag, 30. August 2010 4:45 16
Checking and refilling levels237
Safety First
Operating Instructions
Practical Tips
Technical Specifications
A flat battery can
freeze at temperatures of around 0°C. The battery must be
defrosted before charging ⇒. It is advisable to replace the battery if it has
frozen, because the ice can crack the battery casing and allow the battery
acid to escape.
The battery caps should not be opened while the battery is being charged.
WARNING
Never charge a frozen battery. Failure to comply could result in an
explosion.
exeo_EN.book Seite 237 Montag, 30. August 2010 4:45 16
Index307
Index230 V socket . . . . . . . . . . . . . . . . . . . . . . . . . . . 151AAccessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Adaptive headlights . . . . . . . . . . . . . . . . . . . . . 121 Faulty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Air conditioner 2C-Climatronic . . . . . . . . . . . . . . . . . . . . . . . 156
Air distribution . . . . . . . . . . . . . . . . . . . . . . . 163
Air outlets . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Air purity sensor . . . . . . . . . . . . . . . . . . . . . . 161
Air recirculation . . . . . . . . . . . . . . . . . . . . . . 160
Air recirculation (automatic) . . . . . . . . . . . . 161
Automatic mode . . . . . . . . . . . . . . . . . . . . . 159
Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Defrosting . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
ECON Mode (economy) . . . . . . . . . . . . . . . . 160
Economical use . . . . . . . . . . . . . . . . . . . . . . 164
Key settings . . . . . . . . . . . . . . . . . . . . . . . . . 164
Solar-powered blower/sunroof . . . . . . . . . . 165
Temperature selection . . . . . . . . . . . . . . . . . 159
Air duct Fitting . . . . . . . . . . . . . . . . . . . . . . . . . 262, 269
Removing . . . . . . . . . . . . . . . . . . . . . . 261, 268 Air purity sensor . . . . . . . . . . . . . . . . . . . . . . . . . 161
Airbag
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . 66
Airbag covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Curtain airbags . . . . . . . . . . . . . . . . . . . . . . . 41
Front airbags . . . . . . . . . . . . . . . . . . . . . . . . . 32
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . 29
Alternator Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . 69
Ambient lighting . . . . . . . . . . . . . . . . . . . . . . . . 124
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Anti-lock brake system How it works . . . . . . . . . . . . . . . . . . . . . . . . . 186
Anti-theft alarm system . . . . . . . . . . . . . . . . . . . 106 Interior monitoring . . . . . . . . . . . . . . . . . . . 107
Aquaplaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
Armrest Storage compartment in front armrest . . . . 142
Armrests Adjusting the front armrest . . . . . . . . . . . . . 142
Ashtray Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Athermic windscreen . . . . . . . . . . . . . . . . . . . . . 219
Auto-check system . . . . . . . . . . . . . . . . . . . . . . . 75
Automatic car wash tunnel . . . . . . . . . . . . . . . . 210 Automatic gearbox
Dynamic gear control programme . . . . . . . 182
Kick-down feature . . . . . . . . . . . . . . . . . . . . 181
multitronic® . . . . . . . . . . . . . . . . . . . . . . . . 177
Paddle levers (tiptronic mode) . . . . . . . . . . 184
Safety interlock for ignition key . . . . . . . . . 167
Selector lever lock . . . . . . . . . . . . . . . . . . . . 181
Selector lever positions . . . . . . . . . . . . . . . 179
Steering wheel with paddle levers . . . . . . . 184
tiptronic . . . . . . . . . . . . . . . . . . . . . . . 177, 183
Automatic headlight control . . . . . . . . . . . . . . . 115
Auxiliary heater . . . . . . . . . . . . . . . . . . . . . . . . . 165
BBattery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234 Battery voltage . . . . . . . . . . . . . . . . . . . . . . . . 81
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Disconnection . . . . . . . . . . . . . . . . . . . . . . . 234
Long periods of non-use . . . . . . . . . . . . . . . 234
Replacing . . . . . . . . . . . . . . . . . . . . . . 234, 235
Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Winter operation . . . . . . . . . . . . . . . . 234, 235
Bicycle rack Towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Biodiesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Biodiesel fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
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