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2019+ BMW 3 AND 4-SERIES FORUMS (G2x Generation) General G20 Sedan / G22 Coupe / G26 Gran Coupe Discussions Does your sunroof rattle?

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      01-14-2021, 03:21 PM   #67
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Quote:
Originally Posted by Brad8899 View Post
Just an update- I dropped the car off exactly a week ago. Took 3 days for them to tell me that they “couldn’t replicate the issue”. I knew they would say that! I even gave them a video. Anyways, three days later they tell me that so I go to pick it up. I had the shop foreman sit in the car with me on the service drive and showed him within a minute and he said “yeah I can replicate that- I don’t know how you’ve been able to listen to that for two months”. THANK YOU. Just got an update and there is a TSB on this and the first attempt at a fix is a lubricant BMW is sending. If that doesn’t work, they are required to send a follow up video of the noise if still present and then BMW will have to send additional parts.

Does anyone remember what the sunroof tsb was? I bought the lubricant for a few bucks and want to just do it myself.
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      01-15-2021, 09:24 AM   #68
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So I had a rattle with my 2017 540i X drive and BMW of Fairfax was able to address the issue by replacing the rubber seal located at the top of the sunroof. It was cracked and brittle. It may be worth replacing and see if that helps. Just my anecdotal evidence.
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      01-15-2021, 11:38 PM   #69
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Update.... The dealer took the sunroof off and then cleaned and lubricated the seals again. Problem solved. No more creaking.
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      03-02-2021, 07:17 AM   #70
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Quote:
Originally Posted by BMPNRIDE View Post
Update.... The dealer took the sunroof off and then cleaned and lubricated the seals again. Problem solved. No more creaking.
I also have a creak on my 2021 330xi.

Dealer also cleaned and lubricated seal but once I drove off it still creaks 😢

Going to have to try and put some felt pads around
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      03-03-2021, 08:26 PM   #71
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Quote:
Originally Posted by BMPNRIDE View Post
Update.... The dealer took the sunroof off and then cleaned and lubricated the seals again. Problem solved. No more creaking.
Mine is starting to come back.... Not as bad as it was but ill have to see how it progresses
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      03-03-2021, 11:00 PM   #72
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Mine is back too, I’m going to contact BMW again. They need to own the problem, not me/us.
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      03-08-2021, 03:52 AM   #73
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My 2020 U.K. spec. M340i had a rattling / creaking sunroof. The car was booked into my local BMW dealer for a warranty repair on 24th March. Barrett’s in Canterbury acknowledged that there was a BMW bulletin about the issue and thus ordered a special heavy duty grease to repack the sunroof rails which they duly did. The rattle is. MUCH better but I do still occasional get the odd low volume “tick” from the back of the sunroof which dpseems a bit dependent on the temperature inside the car. Overall though, the rattle / creak is much reduced after the rails were repacked with the special BMW grease recommended in the service bulletin.

Last edited by NthKent; 07-05-2021 at 03:41 PM..
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      03-20-2021, 09:26 AM   #74
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Been trying to get this issue fixed for months. New sunroof was installed, lubed all areas in the deck. Nothing really helps. Anyone have success fixing this?
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      03-20-2021, 10:35 AM   #75
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Quote:
Originally Posted by Pacman123 View Post
Been trying to get this issue fixed for months. New sunroof was installed, lubed all areas in the deck. Nothing really helps. Anyone have success fixing this?
I had same problem. Lube worked, so far, but most importantly get BMW on this, they need to own the problem. They have been doing great for me... Coordinating with dealership, checking status, results, etc. They really own the problem from issue to resolution.
——

Follow-up… Sunroof creaking and rattling problem started again. BMW case manager is no longer doing so great and had no suggestions. I've now been handed off to the "customer relations" representative. Her next step is checking with regional manager to see options since sunroof can't be fixed.

Last edited by luv2learn; 05-20-2021 at 10:19 PM..
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      06-21-2021, 10:38 PM   #76
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Yes and it creaks when going up/down driveways as the car twists
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      06-21-2021, 11:27 PM   #77
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Definitely noticeable around town, even with music on. I want to put some seal strip where the glass opens from and see if that helps. The noise goes away if I tilt the sunroof up, so maybe it's just the edge of the glass that creaks.
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      06-25-2021, 04:59 PM   #78
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I also have my sunroof rattling terribly.
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      06-25-2021, 05:01 PM   #79
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Good point, I haven't used my moonroof other than testing out comfort open and close(latter requires comfort access), so I will experiment to see if mine rattles when opened(there is no rattle while closed).
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      07-04-2021, 12:07 AM   #80
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My sunroof was creaking/rattling when closed, on uneven surfaces. I fixed this by sparingly wiping glycerol (glycerine) on the rubber surround, and also cleaning the metal surface that the roof seal meets when closed.

To do this, you need to first fully open the sunroof and wipe the forward edge and sides of the roof, and clean the metal that the rubber seals against. Then close the roof and tilt it to allow you to do the same to the rear edge of the roof.
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      07-14-2021, 05:29 PM   #81
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I dont know this one rattling noise is just ... my country roads are so uneven Im listening to this since I bought the car ... I found a solution using my premium music volume to max.. but that's just ..., going to put a M performance exhaust by the dealer and will ask to take care of the sunroof. But I don't think they can fix this issue... its just a sloppy sunroof, from what I see the clean and lube fix the issue but for some time, I got a friend with g20 330xd they lube the sunroof and fix it for like 3 months.. So there is no permanent solution, I will just ask them to give me this lube and explain me where should I apply and do that every 2-3 months... so disappointed from 100 000 USD ( in my country) car form premium brand.
My father drives an old mercedes E320 MY2001 and the car has sunroof which still works perfectly fine and doesn't do any SOUND at all.
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      07-16-2021, 12:41 PM   #82
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Hi, first post on the forum. Just picked up a 2021 M340iX (dealer demo, 5k miles) two weeks ago. Came from a 2016 550i.

Anyway, my sunroof also has the squeak/creaking - couldn’t figure out where it came from at first, but then noticed it went away when opening or tilting the roof. Going to try some lube, otherwise dealer will have to look at it on next oil change.

Awesome car the M340 - completely different than the 550i (it could boogie in a straight line but was a boat on the backroads in comparison!)
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      07-19-2021, 04:49 AM   #83
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Quote:
Originally Posted by premier3is View Post
No rattle for me but side note, the wind noise when the sunroof is open is loud... louder than any other cars I've had.
Opening the rear windows a few inches makes a massive difference.

Personally I love driving with all the windows and sunroof wide open…..up to about 40mph!
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      07-19-2021, 06:59 AM   #84
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Had the rattle from new and was going to setup a dealer visit. On a road trip (>500 miles) and about 1/2 way through the rattle stopped!
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      07-22-2021, 02:06 PM   #85
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Quote:
Originally Posted by NthKent View Post
My 2020 U.K. spec. M340i had a rattling / creaking sunroof. The car was booked into my local BMW dealer for a warranty repair on 24th March. Barrett’s in Canterbury acknowledged that there was a BMW bulletin about the issue and thus ordered a special heavy duty grease to repack the sunroof rails which they duly did. The rattle is. MUCH better but I do still occasional get the odd low volume “tick” from the back of the sunroof which dpseems a bit dependent on the temperature inside the car. Overall though, the rattle / creak is much reduced after the rails were repacked with the special BMW grease recommended in the service bulletin.

My M340i is going back into Barrett’s again as the sunroof has started ticking again (albeit at a lower volume than before) PLUS the offside door trims are creaking badly when pulling away from a standing start (sounds almost as if the body is flexing which I know it can’t be of course!). It seems particularly bad during the hot 30°C weather we’ve been having recently!
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      07-22-2021, 03:23 PM   #86
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Quote:
Originally Posted by KP-NJ View Post
Hi, first post on the forum. Just picked up a 2021 M340iX (dealer demo, 5k miles) two weeks ago. Came from a 2016 550i.

Anyway, my sunroof also has the squeak/creaking - couldn’t figure out where it came from at first, but then noticed it went away when opening or tilting the roof. Going to try some lube, otherwise dealer will have to look at it on next oil change.

Awesome car the M340 - completely different than the 550i (it could boogie in a straight line but was a boat on the backroads in comparison!)
Quick update:
Ordered some “AGS Sil-Glyde” lubricant from Amazon and applied it to the rear part of the rubber gasket on the glass and a tiny bit to the metal edge of the roof where they meet. Sunroof has been quite for 4 days now
YMMV
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      07-23-2021, 05:49 PM   #87
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Yes sometimes which is very strange. I open and close it a few times to get it to be lesss of a annoyance and sometimes works
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      07-23-2021, 06:08 PM   #88
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Does your sunroof rattle?

Quote:
Originally Posted by bones View Post
Mine does, except when it’s in the tilted-up position. It's tolerable, but I'd prefer it wasn't there.
Mine does when not open. Very loud and annoying. Took it to service Friday sunroof was not working and i mentioned the annoying rattle noise, had the car back Monday, issue no more. Didn't even ask what they did.
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