
One possible reason why the sunroof of BMW X1 cannot open is that there is a foreign object stuck in it. Reasons why the car sunroof cannot open: Sunroof circuit failure; The drive motor of the car sunroof is damaged; The sunroof track is severely lacking lubrication, causing the sunroof seal to stick to the body; There are foreign objects stuck in the sunroof slot. Sunroof maintenance methods: Clean the grooves and gaps regularly. Generally, after using the sunroof for two or three months, use gauze soaked in clean water to clean it slightly; After winter snow or car washing, the sunroof glass and sealing rubber frame may be frozen. After snow or car washing, the sunroof should be opened immediately to wipe off the water on the edges, which may help avoid the sunroof from freezing; For electric sunroofs, on bumpy roads, it is best not to open them completely, as it may cause vibration between the sunroof and the motor, leading to deformation of some components, or even more severe damage to the motor.

My old X1 also had issues with the sunroof failing. After struggling for a while, I found out it was due to the aging rubber seals in the sliding rails. BMW’s panoramic sunroofs are particularly prone to dust buildup over time, with leaves and debris getting stuck in the tracks, causing increased resistance that triggers the motor’s automatic protection shutdown. Last time during maintenance, the mechanic used a specialized lubricant to clean the tracks, and it worked smoothly right away. Here’s a cool tip: holding down the sunroof button for 15 seconds resets the system, just like restarting a phone. If it still doesn’t open, it’s likely a blown fuse or a faulty motor, especially after rain when short circuits are common. It’s best to address it quickly to avoid damaging the control module.

Last time I helped my neighbor's daughter check her BMW X1 sunroof malfunction and found the drain was completely clogged with fallen leaves. BMW designed the sunroof with particularly narrow drainage tubes, causing water to backflow into the motor wiring and short-circuit. Here's a self-check method: First listen for a motor humming sound when pressing the switch - if there's sound, it indicates the track is stuck; if no sound, check the fuse (the one labeled SUNROOF in the driver's side fuse box). When replacing fuses yourself, pay attention to the amperage - I've seen three BMWs with mislabeled fuses. If the motor is broken, replace it as soon as possible. Delaying could make the assembly cost equivalent to half a month's salary.

Over the years of running the repair shop, about 80% of BMW sunroof failures I've encountered are concentrated in four areas. The most common issue is poor contact in the buttons - cleaning the contacts with alcohol swabs usually solves it. Next is track deformation, where the aluminum alloy tracks warp after prolonged exposure to sunlight in older vehicles. More troublesome is water ingress in the control module, especially when high-pressure car wash jets are aimed directly at the sunroof gap. Last year, I encountered a bizarre case where the owner accidentally disturbed the CAN bus while installing a dashcam. My recommendation is to first reset the system by holding down the close button until the sunroof completes a full open-close cycle. If the reset fails, then use a diagnostic scanner to read the fault codes.


