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How to Replace the Battery in an Audi A3

Model: Audi A3 MK 4, 8Y - Years: 2020, 2021, 2022, 2023, 2024, 2025, 2026
Part: Battery

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Video tutorial

To replace the battery in an Audi A3, open the bonnet and locate the battery, often protected by a plastic cover. Remove any coverings to access the terminals.

For safety, disconnect the negative terminal first, then the positive terminal. Unscrew the bracket or support that secures the battery in its place and carefully lift out the old battery.

Insert the new battery into the same housing and secure it with the bracket. Reconnect the positive terminal first, then the negative terminal, ensuring the connections are tight.

Refit any covers and close the bonnet. Start the vehicle to check that the electronic systems are functioning correctly.


Posted on 30 October 2026 by ScegliAuto


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by ScegliAuto

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