torque AUDI A4 1999 B5 / 1.G Battery Workshop Manual

27-3

Battery handling instructions


Notes:

Battery terminals should no longer be coated
with grease.
To avoid damage to the battery case, place the
cable clamps on the terminals by hand without
using force.
The battery terminal clamp tightening torque is
6 Nm (53 in. lb).
Once the battery is reconnected, check and
activate the vehicle's electrical equipment
(radio, clock, comfort and convenience
features, etc.) as described in the Repair
Manual or the Owner's Manual.
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27-4

Battery, removing and installing


CAUTION!

Disconnect the battery Ground (GND) strap
before working on the electrical system.

Notes:

Before disconnecting the battery, determine the
correct coding for the anti-theft radio.
Once the battery is reconnected, check and
activate the vehicle's electrical equipment
(radio, clock, comfort and convenience
features, etc.) as described in the Repair
Manual or the Owner's Manual.

Removing

- Disconnect battery Ground (GND) strap from negative terminal by
loosening nut -1-.
Tightening torque: 6 Nm (53 in. lb)
- Disconnect battery positive cable from positive terminal by loosening
nut -2-.
Tightening torque: 6 Nm (53 in. lb)
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27-5


Installing
Notes: - Remove bolt -3- and remove hold-down clamp -2-.
Tightening torque: 15 Nm (11 ft lb)
- Lift battery -1- out of battery tray.
The newest generation of batteries is equipped with a central gas vent
and flame trap by means of a "baffle." Function: the gas produced during charging escapes at one place
through an opening in the top of the cover. The flame trap (which
prevents the flammable gas located in the battery from igniting) is also
integrated in this unit. For proper venting of the battery via the diffuser and the hose, it is
important that the hose attached to the central gas vent does not
become pinched off during installation. The diffuser consists of a small round glass fiber mat having a
diameter of approximately 15 mm and a thickness of 2 mm. It
functions similar to a valve, i.e., it allows the gas formed in the battery
to flow out.
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