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Battery, Engine Compartment






Battery, Engine Compartment

Removing

CAUTION!
• Prior to handling or servicing batteries, read, understand and observe the Warning and Safety Measures for lead-acid batteries => [ Warnings and Safety Precautions ] Service Precautions

• Always wear suitable protective clothing => [ Eye protection and protective clothing: ] Service Precautions.

CAUTION!
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 Repair Information and/or Owner's 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 1331 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 -.

• 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 Allen 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 sulfuric acid are observed.

Installing

Install in reverse order of removal, noting the following:

• Only maintenance-free batteries conforming to standards "TL82506 " (as of December 1997) and "VW75073" (as of August 2001) may be installed.

• 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 -.





• 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; see notes => [ Batteries Central Gas Venting, Checking ] Batteries Central Gas Venting, Checking.

- Check firm attachment of battery following installation => [ Battery Installation, Checking ] Battery Installation, Checking.

The following steps are required after reconnecting battery:

• When reconnecting battery, activate vehicle equipment (radio/radio navigation system, clock, electric window lifters) in accordance with Owner's Manual.

• On vehicles equipped with Audi Telematics by OnStar(R) , switch on emergency (back-up) battery.

• 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 => Owner's Manual.

• After re-connecting battery, the ESP indicator lamp will go out only after driving a distance of several meters.

Tightening Specifications




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