Protected by copyright. Copying for private or commercial purposes, in part or in whole, is not
permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
– Loosen nut several turns and disconnect battery clamp
-arrow- of earth cable from battery terminal.
– When connecting battery, attach battery clamp of earth cable
to negative battery terminal “–” by hand and tighten nut.
The following measures must be carried out after re-connecting
battery:
♦ Deactivate service mode for telematics control unit in “Guided
fault-finding”.
♦ Activate automatic open/close function of electric window reg‐
ulators - see ⇒ Owner's Manual .
♦ Turn the ignition key in ignition lock once to the left as far as
the stop.
♦ Synchronise spare keys and additional keys to ensure correct
remote control operation.
♦ Interrogate event memories of all control units and erase “Low
voltage” event if displayed ⇒ Vehicle diagnostic tester.
Note
After reconnecting the voltage supply, it is possible that the ESP
warning lamp will not go out until the vehicle has been driven
several metres.
Tightening torque
Component Nm
Battery clamp to battery terminal 6
2.4 Removing and installing battery
Removing
Caution
♦ On vehicles with telematics system, activate service mode
for telematics control unit in “Guided Functions” before
disconnecting battery ⇒ Vehicle diagnostic tester.
– Switch off ignition and take out ignition key.
– Remove cover for luggage compartment side trim (right-side)
-arrows-.
Audi A8 2003 ➤
Electrical system - Edition 08.2014
2. Battery 3