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How to Replace the Battery in the BMW 3 Series Key Fob

Model: BMW Serie 3 E91, E90, E92 - Years 2005-2013
Part: Battery

The step-by-step instructions in this guide will show you how to disassemble and replace the battery in the key fob for the BMW 3 Series. First, take your key fob and remove the physical key found inside it; then, remove the plastic cover of the fob, as shown in the video. At this point, take out the old battery and replace it with a new one of the correct type and the same specification (in this case, a CR 2032 3V); insert it in the correct orientation and secure the plastic cover, finally reinserting the key.

Updated on 19 September 2026 by ScegliAuto

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How to Reset the Central Locking of the Volkswagen Golf 4?

If the central locking system of the Volkswagen Golf 4 is not working, it is likely necessary to reset the system: to do this, open the driver's door and detach the side panel of the dashboard next to the steering wheel. Under this panel, you will find the fuses, including the one for the central locking, which is indicated in the manual as number 14. To reset the system, remove this fuse from its housing, then reinsert it or replace it with a new one of the same amperage: this will reset the central locking system.

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