Audi A3 2016 Owner's Manual page 252

Ch e ck ing and Filling
Always read and heed all WARNING S be low
¢
A
and ¢
A
in Working on the battery on
page 248.
... Swit ch off the ignition and all e lectrical con-
sumers .
... Make sure the area is well venti lated when you
charge the battery.
... Open the engine hood ¢
page 23 7.
... Open the red cover on the positive pole
¢ fig.
200.
... Clamp the cha rge r terminal clamps as instruct-
ed on the batt e ry terminal (+) and only on the
body ground point(·).
... Only now plug the mains lead for the charging
equipment into the wall outlet and turn it on
¢£ .
... Make su re the charging rate is not over
3 0 amps/ 14.8 Volt.
... When the battery is fully charged: Turn the
charg ing equipment off and remove the mains
lead from the wall outlet.
... Now remove the clamps fo r the charging equ ip-
ment .
... Close the red cover on the positive pole.
... Close t he hood ¢
page 238.
A discharged battery can freeze at temperatures
of only 32 F 0 (0 °C). Allow a frozen battery to
thaw comp letely before attempt ing to charge it
¢
.&. .
However, we recommend not us ing a
thawed batte ry again because the battery casing
can be cracked due to ice formation and can leak
battery acid.
Battery charging (Maxi mum charging rate of
30 amp s/ 14.8 Volt )
When charging at
low
voltages (e.g. with a
trick-
le charger), the battery cables do not have to be
d isconnected first. The battery caps should
not
be opened when charging a battery.
It
is not necessary to remove the battery from
the luggage compartment, and it is also not nec-
essary to disconnect the cab les.
250
Fast charging the battery (charg ing rate
abov e 14 .8 Volts )
For technical reasons do not use a battery charg-
er that uses voltage greater than 14.8 Volts to
charge your veh icle's battery.
A
WARNING
Charg ing a battery can be dangerous .
-Always follow the operating instructions
provided by the battery charger manufactur-
er when charging your battery .
- Never charge a frozen battery.
It
may ex-
plode because of gas trapped in the ice. Al-
low a frozen battery to thaw out first.
- Do not reuse batteries which were frozen.
The battery hous ing may have cracked and
weakened when the battery froze.
- Charge the battery in a well ventilated area .
Keep away from open flame or electrical
spark. Do not smoke . Hydrogen gas generat-
ed by the batte ry is explosive .
- To reduce the danger of explosion, never
connect or d isconnect charger cables while
the charger is ope rating .
- Fast charg ing a battery is dangerous and
should only be attempted by a competent
technician w ith the prope r equipment.
- Batte ry acid that may spill during charging
should be washed off w ith a so lution of
warm water and baking soda to neutra lize
the acid.
{[) Note
Never use a fast cha rge r as a booster to start
the eng ine. This will se riously damage sensi-
tive elec t ronic components, such as control
units, re lays, rad io, et c., as well as the ba t tery
charger.
Battery replacement
The new battery must hove the some specifica-
tions and dimensions as the original equipment
battery .
Intelligent energy man agement in your vehicle is
responsib le for d istr ibut ing the e lect rica l energy ..,.