apMechorse
Well-known member
- First Name
- Steve
- Joined
- Mar 10, 2021
- Threads
- 11
- Messages
- 424
- Reaction score
- 568
- Location
- Fargo, North Dakota
- Vehicles
- '21 502A 5.0L FX4 & '15 Audi A5 T2
- Occupation
- Aircraft Maintenance Technician
I just had this issue start after taking my truck in for having the moonroof seal replaced. My service manager told me that unlike previous generations they have to drop the headliner to replace it in the '21s.As I put more miles on my truck (about 525 miles now), the door rattles started to get worse. I think it's less about miles and more about warmer weather in California. While driving I applied pressure to various parts of the door panel assembly and isolated the noise to the front triangular panel. It was hard for me to test the passenger side, but it sounded similar to what I was hearing from the drivers side.
I went ahead and removed both panels (they just pull off, start at the top. The bottom clips can be a little finicky but it just requires a little tweaking of your technique. Once removed I did three things:
After reassembly and a test drive, no more noises were coming from either door panel. YMMV for obvious reasons, but on my truck that's where the rattling was coming from.
- Behind the triangular panel is a 7mm screw which holds the top of the door panel to the door itself. On both sides of my truck, that screw wasn't really snug. I noticed when applying pressure to that area, I could get a rattle/squeaking noise to occur. Don't go crazy, but tighten it a bit if it's loose. After doing that, I couldn't reproduce the noise.
- I used some thin felt tape to isolate the triangular trim piece from the door panel and door frame. This stuff is cheap and available from Amazon. I always keep some on hand for covering wires or sorting out rattles. I applied small pieces around each panel and also into the holes where the lower clips engage.
- Tightened both 10mm mirror nuts. One was barely snug on the driver's side.
Fun fact, if the passenger side trim panel makes this noise, acoustically from the driver's seat it sounds like the noise is coming from above the passenger side sun visor. And considering the headliner had just been dropped, I just assumed they didn't put it back up properly. I tried removing the visor, checking the moonroof mounting, checking between the headliner and the roof, oddly enough nothing in there fixed it. I found this post and pulled the trim panel off and sure enough, the noise went away.
Thank you for this post. As I'm sure you're aware there is NOTHING more irritating than a mystery noise!
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