A video on how to replace the battery on a BMW diamond shaped key fob. This particular battery is for a 2002 BMW M3, but this key was used for several years on several BMW models including the 5-series and 3-series. You will need a soldering iron and a rechargeable battery.

Parts and tools used:

HQRP Battery Compatible with 3-Series BMW E46 E90 E91 E92 E93 LX8 FZV LX8FZV Key Fob KeyFob 90 Degrees Pins VL2020
https://amzn.to/2Kkwfb6

Soldering Iron Kit Electronics, Yome 14-in-1 60w Adjustable Temperature Soldering Iron with ON/OFF Switch, 5pcs Soldering Iron Tips, Desoldering Pump, Tweezers, Stand, Solder, PU Carry Bag
https://amzn.to/3zIfJfn

X-Acto #1 Precision Knife | Z-Series, Craft Knife, with Safety Cap, #11 Fine Point Blade, Easy-Change Blade System
https://amzn.to/2qaeW5N


Gorilla Super Glue with Brush & Nozzle Applicator, 12 Gram, Clear
https://amzn.to/2Kjc3qd


Compatible with: VL2020 3-series BMW E46 E90 E91 E92 E93 LX8 FZV LX8FZV BMW E46 E90 E91 E92 E93 LX8 FZV LX8FZV E83 X3 E53 X5 E9X 5-Series E60 E61 530i 530xi E39 Z4 E85 E86 Key Fob KeyFob

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Though I try my best to do a lot of research, Any Do It Yourself Tutorials are made with no guarantees as to correctness or safety. I or Youtube are not responsible for any loss or damages. Proceed at your own risk.

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