Audi TT 2016 Owner's Manual page 250

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Ch e ck ing and Filling
~
Wh en a batt ery is charged, it produces
hyd rogen gas whi ch is explo sive and
could cause personal inju ry.
®
Alw ays keep th e batte ry well out of
reach of childr en.
A
WARNING
Whenever work ing on t he battery or on the
electrical system, there is the risk of injury,
accident and even fire . Read and heed the fol-
lowing WARNINGS:
- Always wear eye protection. Do not let bat-
tery acid or any lead particles get on your
sk in or cloth ing . Shield your eyes. Explosive
gases ca n cause blindness or other injury.
- Battery acid contains su lfuric acid. Sulfur ic
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 ventilat ion open ings.
- If you get battery acid in your eyes or on
your skin, immediately rinse with cold wa-
ter for several minutes and get medical at-
tention .
- If you 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 nega-
tive cables.
- When working on the battery, be sure not to
short-circuit the terminals with tools or oth-
er metal objects. This would cause the bat-
tery to heat up very quickly, which could
lead to damage or explosion and personal
injury.
- When a battery is charged, it produces hy-
drogen 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 cable .
- Before performing any work on the electri-
cal system, switch off the eng ine and igni-
t ion as well as any electrical equipment. The
248
-
negat ive cab le on the battery must be dis-
connected. If you are just going to replace a
light bulb, then it is enough to switch off
the lights .
- Before d isconnecting the battery, switch off
the anti-theft alarm system! Otherwise you
will set off the alarm .
- When disconnecting the battery, first dis-
connect the negative cable and then the
positive cable .
- Before reconnect ing the battery, make sure
all electr ical consumers are switched off .
Reconnect the positive cable first and then
the negative cable . Never interchange the
cables - this could sta rt a fire!
- Never charge a frozen or a thawed-out bat-
tery. It cou ld explode! If a batte ry has fro -
zen, then it must be replaced. A discharged
battery can freeze over at 32 °F (0 °C).
- Make sure the vent hose is always attached
to the opening on the s ide of the batte ry.
- Never use batteries which a re damaged .
There is t he danger of an exp losion! Always
replace a damaged battery.
A
WARNING
Califo rnia Proposition 65 Warning :
- Batte ry posts, te rm inals and related acces-
sories contain lead a nd lead compounds,
chemicals known t o the State of California
to cause cancer and reproductive problems .
Wash hands after handling .
(D
Note
- Do not disconnect t he vehicle battery when
the ignition is on or when the engine is run-
ning, otherwise , you w ill damage e lectronic
components in the e lectrical system.
- If your veh icle is go ing to stand for a long
period of time without being driven, protect
the battery from "freezing" , otherwise it
will be damaged and will then have to be re-
placed .

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