What are the functions of the BMW X1 key?
3 Answers
Functions of the BMW X1 key: The key has only three buttons, which are unlock, lock, and trunk release. The remote key has a built-in mechanical key for emergency use. Press and hold the unlock button, and all four windows will lower simultaneously; press and hold the lock button, and all four windows will rise together. Replacing the battery in the BMW X1 key: Gently press the small switch on the back of the key to remove the mechanical key. Then, use the mechanical key to open the key cover by inserting it into the notch beside the key and gently prying it open. Once the key cover is opened, the old battery will be fully visible. A small flathead screwdriver can be used to remove the old battery. When installing the new battery, ensure the positive side is facing up. Reattach the key cover and mechanical key. Reasons why the BMW X1 key is unresponsive: If the key is out of battery, first remove the mechanical key, then pry open the plastic shell of the key to replace the coin cell battery, and reassemble it as per the original procedure. It could also be due to the car being parked in a signal interference zone, such as areas with many LED screens, communication operator base stations, or temporary signal control zones, which can affect the remote key's ability to unlock the doors.
I drive a BMW X1 and find the key fob quite versatile for daily convenience. The main buttons are for unlocking and locking: press unlock to open all doors, press lock to secure the vehicle, with an audible confirmation. Nearby is a trunk button—one press pops it open, making loading bulky items effortless. Holding the unlock button rolls down all windows for quick ventilation before summer drives; long-pressing lock closes windows and folds mirrors, protecting against rain and scratches. The key automatically unlocks doors when nearby (Comfort Access), allowing engine start without taking it out—just press the ignition while braking. The battery lasts about two years—replace with CR2032 if it fails; avoid water exposure or high-temperature storage to prevent circuit damage. Regular checks ensure reliability, especially on road trips.
I personally pay great attention to safety, and the BMW X1 key has practical anti-theft designs. The unlock and lock buttons feature anti-copying signals, while holding the lock button can fold the mirrors and close windows to prevent theft when parked. With the Comfort Access function, you can open doors and start the engine as long as the key is on you. Pressing the trunk button opens the cover with one click, ensuring no security risks when loading items. Remote start (if supported) allows engine preheating to reduce cold-start damage, especially warming up the car safely in winter. A warning alerts when the battery is running low, and a spare mechanical key is hidden inside the main key for emergency unlocking. Avoid placing the key near magnetic fields or metal objects to prevent signal interference, and store it in a dry place to extend its lifespan.
