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Ch
e ck
ing and Filling
Not running th
e ve
hicl
e
for long
pe
riod
s
of
t im
e
If you do not drive your vehicle for several days or
weeks, electrical components are gradually re-
duced or sw itched off. This reduces energy con-
sumpt io
n
and maintains the vehicle's ability to
start over a long period of time
c:::,
page 164
.
Some convenience functions, such as interior
lighting or power seats* may not work
.
These
convenience functions will be available again
once yo
u
sw itch the ignition on and start the en-
gine.
Winter operation
During the winter months, it is common for the
battery capacity to decrease as the temperatures
become lowe
r.
This is because mo re power is
needed to sta rt the veh icle and components
such
as the headlights and the rear window defogger
are used more frequently
.
Avoid using power unnecessar ily, especially in
city driving or on sho rt trips. Have yo
ur
author-
ized Audi dealer or authorized Audi Service Facili-
ty check the battery capacity before the start of
winter
c:::,
page 249.
A well-charged battery will
not on ly reduce starting problems in cold weath-
er, but it will also last longer
.
A
WARNING
-
Work on the battery requires expert knowl-
edge. Contact an authorized Audi dealer or
autho rized Aud
i
Service Facility for informa-
t ion regarding the vehicle battery. There is a
risk for chemical burns or explosions.
-
Never open the vehicle battery. Do not t ry to
change
t
he batte ry electro lyte level. Othe r-
wise explosive gas wi ll escape from the bat-
te ry and increase the risk of an explos ion
.
(D
Tips
If your vehicle is not driven for several weeks
in very cold temperatu res, remove the batte ry
and sto re it in a pla ce where it wi ll not freeze.
This prevents the battery from being dam-
aged and needing to be replaced.
248
· Working on the battery
Be especially careful when working on or near
the battery.
Plug- in hybrid drive*: For important informat ion
about the high-voltage battery, refer to
c:::,
page 98
.
The battery is located in the engine compart-
ment
.
Before you check anything in the engine
compartment,
re
ad and heed all
WARNINGS
¢ ,&..
Always heed the
safe
ty wa
rnings
, when working
on the vehicle battery or the veh icle electrical
system to prevent injury
.
The follo
w
ing WARNINGS are very important
w
hen wor king on the batter
y:
Always
heed the following WARNING SYM-
BOLS and safet
y
precaut ions when wo rking on
the batte ry.
®
Always
wear eye protection
.
&
Batt
ery ad
d
co ntains
sulfu
ric
acid
.
Al-
way
s
wear
g
love
s
and
eye
prot ection
.
@
No
-
spark
s
- flame
s
- s
moking
.
~
When
a
battery is charged
,
it produce
s
hydrog en gas which is explo sive and
could cause personal injury.
®
Always kee
p the
batt ery we
ll out of
reach of children.
A
WARNING
Whenever working on the battery or on the
e lectr ical system, there is the risk of injury,
accident and even fire. Read and heed the fol-
low ing WARNINGS:
-
Always wear eye protection. Do not let bat-
tery acid or any lead particles get on your
skin or clothing
.
Shield your eyes. Explosive
gases can cause blindness or other
inj
ury.
- Battery acid contains sulfuric acid
.
Sulfuric
acid can cause blindness and severe burns
.
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