What are the reasons why the sunroof of BMW X3 cannot be opened?

[AdelynMarie]

Here are the specific reasons why the sunroof of BMW X3 cannot be opened: Aging components: Press the sunroof switch button and observe the movement track of the sunroof to see if there is any obvious up and down fluctuation. If there is, it is likely due to aging components, and the only solution is to replace them. Presence of debris particles: After prolonged use, it is inevitable for some debris particles to accumulate on the sliding rails. When the sunroof moves along these rails, friction with the debris occurs. Apply lubricant on both the left and right sliding rails of the sunroof. Loose screws: Loose screws can cause noise from the roof and the sunroof, and even pose a risk of the sunroof falling off. Tightening the sunroof screws can resolve this issue.