How to Replace the Battery in a BMW X3 Key Fob?
2 Answers
First, remove the mechanical key. After removal, you will see two holes. Take out the old battery, install the new one, cover the panel, and reinsert the mechanical key. Below is some relevant information about the BMW X3: 1. Introduction: The BMW X3 stands out with its unique personality, introducing the new SUV Sports Activity Vehicle concept and equipped with BMW's patented xDrive intelligent all-wheel-drive system. 2. Exterior Features: The X3's dimensions are 4565/1853/1674 mm, with a wheelbase of 2825 mm, all exceeding those of the 3 Series. The interior offers ample space, with even the rear seats providing sufficient legroom. The luggage compartment volume is 480 liters and can be expanded to 1500 liters by asymmetrically folding down the rear seats. Compared to the 3 Series Touring (435 to 1345 liters), it is larger in size.
I've owned this BMW X3 for several years and have replaced the key battery twice myself - it's quite simple. When the remote control distance shortens or response becomes sluggish, it indicates the battery is running low. Look at the side of the key - press the small button there and the mechanical key will pop out. Use it to gently pry open the plastic casing to reveal the CR2032 coin battery (remember this model number). Remove the old battery and replace it with a new one, making sure the positive side faces up. Close the casing and test by pressing the buttons a few times. Normally the battery lasts about 1.5-2 years. You can buy spares on Taobao for just a few yuan. When changing batteries, avoid using excessive force to prevent circuit damage - the key internals are delicate, so gentle handling is safest.
