How to replace a bmw key battery

Remember Me? Major General. Got an interesting message from my BMW today.

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. Try and see first if the key was simply "forgotten" by the car by reprogramming it:.

How to replace a bmw key battery

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I hung my key in the washroom with the car in the garage and it killed the battery. Find More Posts by omasou. Mark Forums Read.

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Enter your VIN to confirm you're getting the right product for your car. Where to find your VIN? VIN: [[vinNumber]] delete. Don't have an account yet? Create an account. The list of BMW key fob functions keeps growing, from the simple remote unlock of the E46, through the keyless entry fob for vehicles with BMW Comfort Access, to the fully-featured touchscreen Display Key available for the latest models. In that time, a lot has changed. Whether it's keeping your key charged, pairing it with your vehicle or keeping it safe, each generation of the fob has its own quirks.

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. Fortunately, this is a quick and easy process that you can do yourself. These include:. Changing the battery of your BMW key fob is a straightforward process. Follow these steps to ensure a successful battery replacement:.

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Appreciate 3. 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. Andrew Duggar - Apr 16, Reply. Step 8. Got an interesting message from my BMW today. Work slowly and patiently. Special thanks to these translators:. Cancel: I did not complete this guide. Curious if the dealership noticed lol. Here is the video:. View Statistics:. Pray for Mojo It said the key battery was critically low.

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Badges: It said the key battery was critically low. Cancel: I did not complete this guide. Appreciate 3. Then again it's always in my pocket and I only use comfort access :. Find More Posts by Pray for Mojo. Pray for Mojo DanG Work slowly and patiently. Normally, the key - as mentioned in step 1 - will have to be reprogrammed. Luckily I had a battery at home. Want to contribute? Originally Posted by gphung. Author with 1 other contributor.