How to replace a bmw key battery

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Inside this key model, there is a battery that charges inductively through the steering wheel while driving. It takes some work, but the battery can be changed. To do this, the key must be cut open and the old battery de-soldered. After the new battery is soldered in, the key must be reprogrammed. If the key is very worn, this is a good time to install a new housing.

How to replace a bmw key battery

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How to replace a bmw key battery

Is your BMW key fob showing signs of a weakening battery? Fret not! Changing the BMW key fob battery is a simple task that can save you a trip to the dealership and some extra cash.

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Find More Posts by gphung. Leave it in this position for a few seconds and then pull it back out. Here is what the inside of the casing looks like. If not, move the circuit board back into the right position again. Anyone else had to replace their key battery? What you need. Lieutenant Colonel. Want to contribute? I need help I have a BMW X3 I was idling in the driveway and it just died like it ran out of gas well I checked the fuel pump and I wasn't getting any power back to the fuel pump so I jumped the relay now I'm getting power back to the fuel pump but the car still doesn't start I've checked all the fuses replace the relays I'm wondering if it's my key not synced up with a car somehow or if something else is wrong if anybody knows please help me. The locking system should respond by locking and unlocking all doors, with a "click-clack". Appreciate 1 F87source You're Finished!

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Originally Posted by F87source. Originally Posted by jkoral. Normally, the key - as mentioned in step 1 - will have to be reprogrammed. Replace key battery Got an interesting message from my BMW today. Important : The second key must be reprogrammed within 10 seconds, otherwise it will no longer work. If the key is very worn, this is a good time to install a new housing. Did your other BMWs have comfort access? Step 3. Add a comment. All times are GMT Author with 1 other contributor. Find More Posts by F87source.