If the BMW G38 skylight support cracks, replace it in time. This is because the function of the skylight support is to support the skylight. Once the skylight support is cracked, its stability and durability will be affected, and problems such as noise and water leakage may be caused when the skylight is opened. If not repaired in time, it may also deteriorate further, affecting the safety and driving experience of the entire vehicle. Therefore, it is recommended to find a professional repair shop to replace it, and choose high-quality sunroof supports to ensure the safety and stability of the vehicle.