Loud popping from the panoramic sunroof
I recently purchased a 2014 c63 amg coupe. The roof in multiple places is cracking and popping while driving especially on bumpy roads and going in and out of driveways.
how have you guys fixed this and what did it cost? I got quoted $1,400 by my dealer when I just said “there’s loud banging in the roof” he immediately said “it’s the sunroof it’ll cost $1,400”.
I recently purchased a 2014 c63 amg coupe. The roof in multiple places is cracking and popping while driving especially on bumpy roads and going in and out of driveways.
how have you guys fixed this and what did it cost? I got quoted $1,400 by my dealer when I just said “there’s loud banging in the roof” he immediately said “it’s the sunroof it’ll cost $1,400”.
After a track day mine would do exactly the same thing while driving at 5 km/h in my underground garage. The pops are caused by the roof cassette bolts working themselves slightly loose and the chassis flex every time you drive over a bump. The bolts holding the roof cassette simply need to be re-tightened. The third time I took it in (they would re-tighten them only to have it happen again after the next track day) the tech was smart enough to apply some Loctite on them and it has been perfectly quiet ever since. It was a few hundred bucks in labour but nowhere near $1400.


I recently purchased a 2014 c63 amg coupe. The roof in multiple places is cracking and popping while driving especially on bumpy roads and going in and out of driveways.
how have you guys fixed this and what did it cost? I got quoted $1,400 by my dealer when I just said “there’s loud banging in the roof” he immediately said “it’s the sunroof it’ll cost $1,400”.
Regards,
Joe
After a track day mine would do exactly the same thing while driving at 5 km/h in my underground garage. The pops are caused by the roof cassette bolts working themselves slightly loose and the chassis flex every time you drive over a bump. The bolts holding the roof cassette simply need to be re-tightened. The third time I took it in (they would re-tighten them only to have it happen again after the next track day) the tech was smart enough to apply some Loctite on them and it has been perfectly quiet ever since. It was a few hundred bucks in labour but nowhere near $1400.




I recently purchased a 2014 c63 amg coupe. The roof in multiple places is cracking and popping while driving especially on bumpy roads and going in and out of driveways.
how have you guys fixed this and what did it cost? I got quoted $1,400 by my dealer when I just said “there’s loud banging in the roof” he immediately said “it’s the sunroof it’ll cost $1,400”.
Regards,
Joe
https://youtu.be/BlkZ12RaAIg
Yes - dealership. Unfortunately I'm in Toronto, Canada and I see you're in LA - but if you ever make a 4,000 km trip I know exactly who can fix it for you here.
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Yes - dealership. Unfortunately I'm in Toronto, Canada and I see you're in LA - but if you ever make a 4,000 km trip I know exactly who can fix it for you here.

The roof cassette on the coupe is a single unit, which is the part that was working itself loose from the chassis flexing and making the creaking sound. It does not require disassembly. I just dug up the invoices from when I had the work done on mine - two of them were for 0.7 hours each and the last was for 1.0 hours, which also included lubricating everything as the sunroof was opening rather slowly and would sometimes stop in the middle (2 x $118.30 and $169.00 respectively).
and yes, the sound is mostly a single loud bang or repeated loud bangs if on a really bumpy road, going into a driveway, etc.
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and yes, the sound is mostly a single loud bang or repeated loud bangs if on a really bumpy road, going into a driveway, etc.


