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Why Does the Sunroof Malfunction?

3 Answers
ChristianMarie
08/27/25 4:08am
The causes of sunroof malfunctions include sunroof wiring faults, damaged drive motor, severe lack of lubrication in the sliding tracks, and foreign objects in the grooves. Here are the methods to resolve sunroof malfunctions: Regularly Clean Foreign Objects: The sunroof opens by sliding along tracks, which have small gaps. When we open the sunroof, dust and sand from the road can enter these tracks. Over time, sand particles accumulate in the gaps, blocking the tracks and causing the sliding mechanism to jam. Therefore, it is necessary to clean foreign objects from the sunroof regularly. Lubricate the Sliding Tracks: As friction in the sliding tracks increases, so does the resistance. Oil can easily attract sand and other foreign particles. Use a damp cloth with clean water to wipe the tracks, removing all grease and keeping them clean. 4S Store Maintenance: If the fuse or relay is damaged, it needs to be replaced at a 4S store.
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LiamAnn
09/09/25 3:12am
I've driven quite a few cars, and there are many common causes of sunroof malfunctions. Track blockage is the most annoying—dust, leaves, or small stones stuck in the sliding rails can make the sunroof open and close unevenly. Over time, insufficient lubrication can cause motor wear, leading to strange noises or complete failure. Electrical issues are also common, such as aging switches with poor contact or short circuits that blow fuses. Another problem is aging seals, which allow rainwater to seep into the interior, causing mold. To prevent major issues, it's best to avoid opening the sunroof on dirty roads and to clean the tracks and apply lubricant every six months.
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DelBriella
10/23/25 4:01am
When the sunroof malfunctions, I often think it's due to daily neglect. Dust accumulation on the tracks can cause movement to become sluggish, especially in cars with frequent opening and closing; motor overheating may lead to burnout, particularly under high summer temperatures; electrical components such as relay failures can cause the switch to malfunction and fail to open. Additionally, aging sealing rubber leading to leaks is quite common. During self-inspection, use a soft brush to clean the tracks and avoid forceful pulling. Regular maintenance saves hassle, extends the sunroof's lifespan, and reduces repair costs.
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