Battery -A-, REMOVING AND INSTALLING: Installing

Install in the reverse order of removal while noting the following:

TIP:

Batteries from the Audi Parts Program have a base strip adapter for conforming to different clamping strips. See the battery operating instructions for information on when and how to use the base strip adapter.

At vehicles using a central venting system hose, this hose needs to be inserted in the respective vent opening at the battery again. The vent opening on the opposing side must be cosed with a blind plug.

-- Push the Battery -A- all the way against the retaining bracket -1- so that the battery clamping strip engages in the retaining bracket.

Courtesy of AUDI

• The Battery -A- must not be able to move anymore.

-- Engage the retaining bracket -2- in the mount slit -3- on the retaining bracket -arrow-.

-- Attach the central venting system hose.

-- Turn off the ignition and all electrical consumers, and connect the Battery -A- in the following sequence:

-- First connect the battery positive cable terminal clamp -2- to the battery positive terminal "+" by hand and tighten the nut -3-.

Fig 1: Battery Ground Cable Connector With Bolt

Courtesy of AUDI

-- Close the cover -1- over the battery positive terminal.

-- Disconnect the connector -2- from the Battery Monitoring Control Module -J367- -item 3-.

Fig 2: Connecting Battery

Courtesy of AUDI

-- Connect the battery ground cable clamp to the battery negative terminal "-" by hand and tighten the nut -1-.

-- Reconnect the connector to the Battery Monitoring Control Module -J367-.

-- Make sure the Battery -A- is secure after installing it.

-- If the Battery -A- was replaced, then the new Battery -A- must be adapted.

Procedure

-- Connect the Vehicle Diagnostic Tester.

-- Select the Diagnostic  mode and start the diagnosis.

-- Select the Test plan  tab.

-- Select the Select individual test  button and select the following tree structure consecutively:

• 12V vehicle electrical system 
• A - Battery 
• A - Adapting battery (12V) 

-- Start the selected program and follow the instructions on the Vehicle Diagnostic Tester display.

Vehicles with 48V System (PR Number VH2/VH3)

-- Re-energize the 48V system. Refer to 48V SYSTEM, RE-ENERGIZING .

When the Battery -A- is reconnected, the following steps must be performed:

• Activate the one-touch up/down function for the power window regulators. Refer to the appropriate Service Information.
• Check all the control module DTC memories and erase the displayed "undervoltage" entry using the Vehicle Diagnostic Tester.

TIP:

After reconnecting the power supply, the ESP warning lamp can only go out after the vehicle has been driven a few meters.