Battery, Removing and Installing

Battery, Removing And Installing

Removing

CAUTION:
- Prior to handling or servicing batteries, read, understand and observe the Warning and Safety Measures for lead-acid batteries
- Always wear suitable protective clothing.
- Before beginning repairs on the electrical system:
- Where applicable, obtain anti-theft radio security code.
- Switch off all electrical consumers.
- Switch the ignition off and remove ignition key.
- Disconnect negative (-) battery terminal.
- On vehicles equipped with Audi Telematics by OnStar(R), switch-off the emergency (back- up) battery for the Telematic/Telephone Control Module prior to disconnecting vehicle battery
- After reconnecting vehicle battery, re-code and check operation of anti-theft radio. Also check operation of clock and power windows according to Owners Manual.
- After reconnecting vehicle battery on vehicles equipped with Audi Telematics by OnStar(R), switch-on the emergency (back-up) battery for the Telematic/Telephone Control Module

Special tools, testers and auxiliary items required







- Torque wrench VAG 133-or (equivalent 5-50 Nm)







- Remove rubber seal from plenum chamber cover in direction of - arrow-.
- Remove plenum chamber cover -1- from the front.
- Disconnect negative (-) terminal -1- from battery







- Then disconnect positive ( - ) terminal - 2- from battery.
- Remove bolt - 4- from battery hold-down bracket - 3 -.

NOTE:
- On vehicles with suspension cross-brace, hex socket bolt -4- must be removed using an Allen key with ball head.
- Loosen bolt enough so that ball head of Alien key contacts suspension cross-brace.
- Leave bolt and securing bracket in place and swivel battery out from under hold-down bracket.







- Disconnect angled connector of central gas venting system - arrow-.
- Carefully lift battery out of plenum chamber.

CAUTION: When disposing batteries it is absolutely necessary that the disposal procedures for batteries and sulphuric acid are observed.

Installing
Install in reverse order of removal, noting the following:

NOTE: Batteries from the Audi parts range feature a base strip adapter for matching to different retainer flanges. The battery operating instructions give details of when and how to use the base strip adapter.







- Insert battery in battery carrier so that lug at rear of battery carrier - arrow - engages in recess in battery base strip -1-.
- It should no longer be possible to move the battery.







- The battery has been properly inserted if the center recess in the battery base strip aligns with the tapped hole in the battery tray - arrows -.







- Install battery hold-down bracket - 3- and fasten with bolt - 4 -.

NOTE: Lug on battery retainer must engage in recess on battery base strip.

Reconnect battery in the following sequence with ignition and electrical equipment switched off:
- First connect positive ( + ) terminal - 2- to battery post and torque nut to specification.
- Then connect negative (-) terminal -1- to battery post and torque nut to specification.
- Connect hose for central gas venting system.
- Check firm attachment of battery following installation.

The following steps are required after reconnecting battery:

NOTE:
- When reconnecting battery, activate vehicle equipment (radio/radio navigation system, clock, electric window lifters) in accordance with Owners Manual.
- On vehicles equipped with Audi Telematics by OnStar(R), switch on emergency (back-up) battery.
- Further measures after reconnecting the voltage supply.
- Check proper function of remote control keys; adapt keys if necessary. Inform customer that all additional keys must also be adapted to ensure that the remote control works properly Owners Manual.
- After re-connecting battery, the ESP indicator lamp will go out only after driving a distance of several meters.

Tightening torques

Component - fastener Nm
Battery terminal to battery post - nut 6
Battery hold-down bracket - nut 12