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How to Replace the SOS Battery in a BMW 3 Series?

Model: BMW Serie 3 F31, F30 - Years: 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
Part: Battery

See other generations:
Video tutorial

To replace the SOS battery in a BMW 3 Series, use a tool to pry off the cover on the rear of the vehicle's headliner. Once the cover is removed, you can locate the underlying SOS battery.

Remove the appropriate screws to free the battery, allowing you to disconnect the connectors. At this point, install the new replacement part, ensuring it is secured and connected.

After installation, cover everything with the panel, verifying that it operates correctly.


Updated on 1 November 2026 by ScegliAuto


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    Frequently Asked Questions

    • Serie 3 2005-2013 - Where is the battery of the BMW 3 Series located? Read answer

How to Remove the Toll Tag Holder from the Car Windscreen

The toll tag holder is usually attached to the car windscreen to ensure that the toll tag functions immediately when passing through barriers. However, if you decide to remove the holder, you should follow this procedure: - Insert the toll tag into the holder; - Pull the holder inwards to detach it from the windscreen; you can use a glass scraper or a stiff plastic card to assist you; After removing the holder, it is essential to remove the adhesive from the windscreen. To remove the adhesive, we recommend using a solvent-based spray that will remove the glue without clouding the area.

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by ScegliAuto

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