Battery -A-, REMOVING AND INSTALLING, 0K4: Installing

WARNING: This page is about a different car, the 2023 Audi S3, 2023 Audi RS 3, 2023 Audi A3 Quattro, and 2023 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.

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.

-- Insert the battery -5- and engage the retaining bracket -4- into the slot in the side angle bracket -arrow A-.

Courtesy of AUDI OF AMERICA, LLC

The battery clamping strip must rest all the way to the back.
The battery must not be able to move at all anymore.

-- Tighten the nut -3-.

-- Install the battery bracket -2-.

The tab -arrow- on the battery bracket must fit into the opening on the battery clamping strip.

-- Tighten the bolt -1- for the battery bracket.

-- When the ignition and electrical equipment are switched off, connect the battery in the following sequence:

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

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

Fig 1: Connecting Battery

Courtesy of AUDI OF AMERICA, LLC

-- 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-.

-- Check the battery for secure fit after installation.

-- If the battery is replaced, then it must be adjusted using the Vehicle Diagnostic Tester.

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.

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

When the battery is reconnected, the following steps must be performed:

Activate the one-touch up/down function for the power window regulators. Refer to the 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.