How to Replace the Battery in a BMW 3 Series Remote Key?

1 Answers
LeAbigail
07/30/25 6:48am
To replace the battery in a BMW 3 Series remote key, follow these steps: 1. Gently insert a small blade into the notch near the key's ear to create a small gap. Then, use a flat-head screwdriver to pry open the entire outer casing along the ear. 2. Once the casing is separated, remove the old battery and replace it with a new one, ensuring the positive and negative terminals are correctly aligned. 3. Snap the back cover of the casing back into place to complete the battery replacement. The BMW 3 Series has a body length, width, and height of 4734mm, 1811mm, and 1455mm respectively, with a wheelbase of 2920mm. It features a 12.3-inch programmable full LCD instrument cluster, a 10.25-inch touch-sensitive central control display, and a full-color head-up display system that allows for three-screen interaction.
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