How to Replace the Battery in a BMW 5 Series Remote?

[VonVincent]

Method for replacing the battery in a BMW 5 Series remote: 1. Gently pry open the back cover of the key with a flat-head screwdriver and remove it; 2. Take out the old battery and insert the new battery into the slot. When installing the battery, ensure the positive side is facing downward; 3. Reattach the key's back cover. After installation, check if all buttons on the key function properly. The BMW 5 Series has a body length, width, and height of 5106mm, 1868mm, and 1500mm respectively, with a wheelbase of 3105mm. The vehicle is equipped with a 2.0T turbocharged engine paired with an 8-speed automatic transmission. This engine delivers a maximum power of 135kW and a maximum torque of 390Nm.

[OAndres]

I've replaced the remote battery several times on my previous BMW 5 Series. Opening the key is simple - just gently pry open the back cover using a fingernail or plastic pry tool, as the clips are along the edges (don't use excessive force). Inside you'll find a CR2032 coin battery. Before removing the old battery, note the positive/negative orientation (usually positive side faces up to avoid reverse installation). After inserting the new battery, press it firmly and close the cover until you hear a click to ensure it's secure. Test the car lock and trunk buttons immediately to confirm responsiveness. Keeping a spare battery in your car saves both money and time - no need for expensive dealership visits. The whole DIY process takes just five minutes and prevents potential issues when you're out next time.

[JulianaMarie]

I've been driving a BMW 5 Series for years, and changing the remote battery is quite simple. First, lay the key flat and gently pry open the cover from the small groove on the side using a flathead screwdriver, being careful not to damage the plastic casing. The small round battery inside is a CR2032 model, which is cheap and available at supermarkets or online. When removing the old battery, remember its orientation to avoid mistakes. Press the new battery firmly into place, ensuring the positive and negative terminals are secure and not loose. After putting the cover back on, test the buttons to see if they respond. If there's no response, check if the battery was installed incorrectly. Doing it yourself saves over a hundred bucks in repair fees, and you get to learn a bit about your car key's structure, making you more confident in handling minor issues in the future.

[VonAmara]

I often help friends with car repairs, and replacing the battery in a BMW 5 Series remote is a common task. There's a gap on the back cover of the key, and a plastic pry tool can easily open it to remove the CR2032 battery. Make sure the positive side faces up when installing the new battery to avoid reverse placement. After installation, press the cover firmly into place and test the lock button for responsiveness—job done. The whole process takes just a minute and costs nothing.