What are the causes of the Haval H7 sunroof rattling?
2 Answers
Haval H7 sunroof rattling causes are: 1. Damaged sealing strip; 2. Loose sunroof screws. The functions of a sunroof are: 1. Release toxic gases inside the vehicle; 2. Prevent car exhaust fumes; 3. Reduce interior temperature; 4. Effectively reduce wind noise; 5. Eliminate fogging. Taking the 2021 Haval H7 as an example, its body dimensions are: length 4715mm, width 1925mm, height 1718mm, wheelbase 2850mm, front track 1645mm, rear track 1596mm, fuel tank capacity 311l, and curb weight 1930kg.
I've been driving a Haval H7 for several years and have encountered squeaky sunroof issues multiple times, usually due to dust or leaves stuck in the tracks. Especially after opening the window on rainy days, dust and moisture mix together and stick to the tracks, causing friction noises. Every time I wash the car, I use a soft-bristle brush to clean the sliding rails and then apply some automotive-specific grease—never use regular engine oil, as it can corrode plastic parts and make things worse. Sometimes loose screws can also cause resonance noises; I checked the screws around the sunroof frame and tightening them helped a lot. The sealing rubber strip can harden with age, causing friction noises when opening or closing—replacing it costs just a few dollars. I recommend cleaning more often before the rainy season and avoiding opening the window on dusty roads. While this issue doesn’t affect safety, it’s quite annoying. If you can’t handle it yourself, it’s best to visit a repair shop.
