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I had the same issue on my 2017 c43 sedan. Wind noise/whistle was bothering me for a couple of months, then I found a post on CLA forum, same problem, and an easy solution that worked for me:
- Open you sunroof (fully roll it back)
- standing outside of the car, look under the sunroof from the front.
- you will see two small bolts over the rail (6 point star head) holding the roof on each side (4 in total)
- mine became loose on one side
- i simply pushed the glass roof from the top to make it travel 1-2 mm down, and tightened the bolts
Took me 5 min and the wind was gone. My better half was really impressed with my mechanic skills , we all hated that whistling noise (it was extremely annoying).
Hope that will work for anybody with a similar issue.
Regards,
Sergey
Late update but thanks this solved the issue and now I have a brand new panel as well haha.
If it's not broken, then I would say that you need to make sure you use some kind of silicone solution and also do not put any heavy grease but light grease it okay.
Looking at all the threads & forums, I've designed and produced a drop in fix for similar issues that people are describing. Dropping this for help!
Let me know how it works and how I could improve it!
Works great so far in my test-vehicle; my personal w205 C63!
Cheers everyone! https://ttartcollection.com/collecti...cls-class-c257
- Axel / Axel W Photo / Ttart Collection
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, we all hated that whistling noise (it was extremely annoying).
Made a drop-in fix for the issue!
