--- title: How To Replace The Battery in a BMW Key Fob description: How To Replace The Battery in a BMW Key Fob --- ![company logo](https://info.upfix.com/hs-fs/hubfs/wVECTOR%20-%20UpFix%20Registered%20logo%20-%20transparent.png?height=120&name=wVECTOR%20-%20UpFix%20Registered%20logo%20-%20transparent.png) [UF Auto TS](https://info.upfix.com/internal-uf-ts) - [KB Home](https://info.upfix.com/internal-uf-ts) Automotive - [Automotive](https://info.upfix.com/internal-uf-ts/automotive) - [Instrument Cluster](https://info.upfix.com/internal-uf-ts/automotive#instrument-cluster) - [Programming VIN & Firmware Updates](https://info.upfix.com/internal-uf-ts/automotive#programming-vin-firmware-updates) - [ECU/PCM Cloning](https://info.upfix.com/internal-uf-ts/automotive#ecu-pcm-cloning) - [CPC4](https://info.upfix.com/internal-uf-ts/automotive#cpc4) - [Power Steering Module](https://info.upfix.com/internal-uf-ts/automotive#power-steering-module) - [PTO](https://info.upfix.com/internal-uf-ts/automotive#pto) - [Mileage Correction](https://info.upfix.com/internal-uf-ts/automotive#mileage-correction) - [Tesla Wall Chargers](https://info.upfix.com/internal-uf-ts/automotive#tesla-wall-chargers) - [Tail Lights](https://info.upfix.com/internal-uf-ts/automotive#tail-lights) - [FICM](https://info.upfix.com/internal-uf-ts/automotive#ficm) - [LCM](https://info.upfix.com/internal-uf-ts/automotive#lcm) - [PCM](https://info.upfix.com/internal-uf-ts/automotive#pcm) - [TCM](https://info.upfix.com/internal-uf-ts/automotive#tcm) - [BCM](https://info.upfix.com/internal-uf-ts/automotive#bcm) - [ABS](https://info.upfix.com/internal-uf-ts/abs) - [App/Fit](https://info.upfix.com/internal-uf-ts/app-fit) - [HVAC](https://info.upfix.com/internal-uf-ts/app-fit#hvac) - [Refrigerator](https://info.upfix.com/internal-uf-ts/app-fit#refrigerator) - [Freezer](https://info.upfix.com/internal-uf-ts/app-fit#freezer) - [Dishwasher](https://info.upfix.com/internal-uf-ts/app-fit#dishwasher) - [Stove/Oven/Range](https://info.upfix.com/internal-uf-ts/app-fit#stove-oven-range) - [Treadmill](https://info.upfix.com/internal-uf-ts/app-fit#treadmill) - [Vent Hood](https://info.upfix.com/internal-uf-ts/app-fit#vent-hood) - [Microwave](https://info.upfix.com/internal-uf-ts/app-fit#microwave) [Back to home](https://info.upfix.com/internal-uf-ts) 1. [UF Auto TS](https://info.upfix.com/internal-uf-ts) 2. Automotive - [Automotive](https://info.upfix.com/internal-uf-ts/automotive) - [Instrument Cluster](https://info.upfix.com/internal-uf-ts/automotive#instrument-cluster) - [Programming VIN & Firmware Updates](https://info.upfix.com/internal-uf-ts/automotive#programming-vin-firmware-updates) - [ECU/PCM Cloning](https://info.upfix.com/internal-uf-ts/automotive#ecu-pcm-cloning) - [CPC4](https://info.upfix.com/internal-uf-ts/automotive#cpc4) - [Power Steering Module](https://info.upfix.com/internal-uf-ts/automotive#power-steering-module) - [PTO](https://info.upfix.com/internal-uf-ts/automotive#pto) - [Mileage Correction](https://info.upfix.com/internal-uf-ts/automotive#mileage-correction) - [Tesla Wall Chargers](https://info.upfix.com/internal-uf-ts/automotive#tesla-wall-chargers) - [Tail Lights](https://info.upfix.com/internal-uf-ts/automotive#tail-lights) - [FICM](https://info.upfix.com/internal-uf-ts/automotive#ficm) - [LCM](https://info.upfix.com/internal-uf-ts/automotive#lcm) - [PCM](https://info.upfix.com/internal-uf-ts/automotive#pcm) - [TCM](https://info.upfix.com/internal-uf-ts/automotive#tcm) - [BCM](https://info.upfix.com/internal-uf-ts/automotive#bcm) - [ABS](https://info.upfix.com/internal-uf-ts/abs) - [App/Fit](https://info.upfix.com/internal-uf-ts/app-fit) - [HVAC](https://info.upfix.com/internal-uf-ts/app-fit#hvac) - [Refrigerator](https://info.upfix.com/internal-uf-ts/app-fit#refrigerator) - [Freezer](https://info.upfix.com/internal-uf-ts/app-fit#freezer) - [Dishwasher](https://info.upfix.com/internal-uf-ts/app-fit#dishwasher) - [Stove/Oven/Range](https://info.upfix.com/internal-uf-ts/app-fit#stove-oven-range) - [Treadmill](https://info.upfix.com/internal-uf-ts/app-fit#treadmill) - [Vent Hood](https://info.upfix.com/internal-uf-ts/app-fit#vent-hood) - [Microwave](https://info.upfix.com/internal-uf-ts/app-fit#microwave) # How To Replace The Battery in a BMW Key Fob Replacing the Battery in a BMW Key Fob (2008 528i, E60 Series): 1. Gather the Necessary Tools and Materials - Replacement battery (3V with solder tabs) - Soldering iron and solder - Desoldering pump or solder wick (to remove old solder) - Reverse tweezers (to hold the circuit board in place) 2. Open the Key Fob Module - Carefully open the key fob to access the internal circuit board. - Identify the battery location, power and ground connections, and soldered prongs. 3. Remove the Old Battery - Use reverse tweezers to hold the circuit board securely in place. - Apply the desoldering pump or solder wick to remove the existing solder from the battery’s connection points. - Gently wiggle and remove the old battery from the board once the solder is loosened. 4. Install the New Battery - Align the new battery in the same orientation as the old one. - Insert the battery so that the tabs fully extend through the circuit board. - Use reverse tweezers to keep the battery flat against the board—this ensures a proper fit inside the key fob housing. 5. Solder the New Battery in Place - Carefully solder the battery tabs to the circuit board, ensuring a strong and clean connection. - Remove any excess solder residue or debris to prevent electrical issues. 6. Verify the Installation - Double-check that the battery is securely soldered and flush against the circuit board. - Inspect the key fob’s buttons to ensure they are still functioning and that no components are missing or displaced. 7. Reassemble the Key Fob - Close the key fob casing securely. - Test the key fob to confirm it is working properly with the new battery installed.   HELPFUL VIDEO: [https://www.youtube.com/watch?v=C3CkehoyEJY](https://www.youtube.com/watch?v=C3CkehoyEJY) - [KB Home](https://info.upfix.com/internal-uf-ts)