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Audi A3 2012 - Page 211

Audi A3 2012
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- When a battery is charged, it produces
hydrogen gas which is explosive and
could cause personal injury.
- Always keep the battery well out of the
reach of children.
- Before work is done on the electrical sys-
tem, disconnect the negative ground ca-
ble.
- Before performing any work on the elec-
trical system, switch off the engine and
ignition as well as any electrical equip-
ment. The negative cable on the battery
must be disconnected. If you are just go-
ing to replace a light bulb, then it is
enough to switch off the lights.
- Before disconnecting the battery, switch
off the anti-theft alarm system! Other-
wise you will set off the alarm.
- When disconnecting the battery, first
disconnect the negative cable and then
the positive cable.
- Before reconnecting the battery, make
sure all electrical consumers are switch-
ed off. Reconnect the positive cable first
and then the negative cable. Never inter-
change the cables - this could start a fire!
- Never charge a frozen or a thawed-out
battery. It could explode! If a battery has
frozen, then it must be replaced. A dis-
charged battery can freeze over at
32 °F
(0 oc).
- Make sure the vent hose is always attach-
ed to the opening on the side of the bat-
tery.
- Never use batteries which are damaged.
There is the danger of an explosion! Al-
ways replace a damaged battery.
_& WARNING
California Proposition 65 Warning:
- Battery posts, terminals and related ac-
cessories contain lead and lead com-
pounds, chemicals known to the State of
California to cause cancer and reproduc-
tive problems. Wash hands after han-
dling.
Checking and filling 209
(D Note
- Do not disconnect the vehicle battery
when the ignition is switched on or when
the engine is running, otherwise, you will
damage electronic components in the
electrical system.
- When working on the engine, protect the
battery housing from ultraviolet (UV)
rays by not parking the vehicle in direct
sunlight .
- If your vehicle is going to stand for a
long period of time without being driven,
protect the battery from "freezing", oth-
erwise it will be damaged and will then
have to be replaced
~ page 209.
Charging of battery
All work on the battery requires technical
knowledge!
Fig. 165 Engine compart ment : connectors for a charg-
er and jump start cables
A charged battery ensures good starting per-
formance . A discharged battery can
freeze at
temperatures of only
O
0
C. A frozen or thawed
battery must be replaced, as the battery
housing may be cracked due to freezing and
could therefore leak acid.
.,. Always read and heed all WARNINGS be-
low~ .&, and ~ .&, in
Working on the bat-
tery on page 208.
... Switch off the ignition and all electrical con-
sumers .
.,. Make sure the area is well ventilated when
you charge the battery.
.,. Connect charger cables.
Charger cables
must always be connected POSITIVE
G to ..,.

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