Audi TT 2012 Owner's Manual page 99

194
Checking and fiLLing
The bottery ocid LeveL in the bottery con be
checked through the c1eor inspection windaw.
CD
Note
Do not overfill the battery, otherwise bat-
tery acid will overflow through the vent
opening. This can damage the paint and
cause corrosion.
Fig. 148 Luggage compartment: 8attery with magic
eye.
Checking the battery acid LeveL on magic
eye batteries·
On top of the battery, there is a round "win-
dow". This window (magic eye) changes color
as the battery charge and acid level change.
~
Read and heed all WARNINGS
q.&.
in
Warking an the bottery an page 194
~
Read the acid level from the window on the
battery
q
fig. 14B.
Air bubbles in the window can cause an inac-
curate reading. Ca refully tap on the side of
the window.
- If the window is green, the battery acid level
is correct.
- If the window has no color or is bright yel-
low, the battery acid level is too low. Have
the battery tested by your authorized Audi
dealer or a qualified workshop.
- If the window is black, then the battery is
insufficiently charged. Recharge the battery
as soon as possible qpoge 196.
J
!
Note
must be disconnected. Ifyou arejust 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.
Tt could explode! If a battery has
frozen, then it must be replaced. A dis-
charged battery can freeze over at 32 OF
(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.
Danger of explosion! Always replace a
damaged battery.
- 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.
- If your vehicle is going to stand for a
long period oftime without being driven,
protect the battery from "freezing", oth-
erwise it will be damaged and will then
have to be replaced.
.&
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.
A
WARNING
Whenever working on the battery or on
the electrical system, there is the risk of
injury, accident and even fire. Read and
heed the following WARNINGS:
- Always wear eye protection. Do not let
battery acid or any lead particles get on
your skin or clothing. Shield your eyes.
Explosive gases can cause blindness or
other injury.
- Battery acid contains sulfuric acid. Sulfu-
rie acid can cause blindness and severe
burns.
- Always wear gloves and eye protection.
Do not tilt the battery because acid
could leak out of the ventilation open-
ings.
- Ifyou get battery acid in your eyes or
on your ski n, immediately rinse with
cold water for several minutes and get
medical attention.
- Ifyou should ingest any battery acid,
seek medical attention immediately.
- Do not expose the battery to an open
flame, electric sparks or an open light.
- Do not smoke.
- Do not interchange the positive and neg-
ative cables.
- When working on the battery, be sure
not to short-circuit the terminals with
tools or other meta objects. This would
cause the battery to he-qt up very quickly,
which could lead to damage or explosion
and personal injury.
- 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
Be especiolly carefuL when working an or neor
the battery!
Fig. 147 Luggage compartment: AGM battery
Working on the battery
No
• sparks
- flames
• smoking.
When a battery is charged, it produces
~
hydrogen gas which is explosive and
could cause personal injury.
~
ALways keep the battery well out of
~ reach of chiLdren.
The battery is located in the luggage compart-
ment.
~ Swing up the luggage compartment floor.
The positive
(+)
battery terminal is protected
bya plastic coyer. This coyer must be removed
to access the positive
(+)
terminal when con-
necting jumper cables to start the engine.
Always heed the safety warnings, when work-
ing on the vehicle battery or the vehicle elec-
trical system to prevent injury.
The following WARNINGS are very
important when working on the battery:
Always heed the following WARNING SYM-
BOLS and safety precautions when working
on the battery.
®
ALways wear eye protection.
Battery acid contains sulfuric acid. Al-
ways wear gloves and eye protection.