annoying rattle from sunroof

Frank914 · Dec 16, 2020

My 2012 TDI lux has a super annoying rattle coming from the sunroof whenever the road is not super smooth. As I live in the mountains of beautiful Idaho and 75% of the roads here are dirt roads and the paved ones feel like they are dirt roads, it rattles about 95% of the time. If I open the roof and close it again the rattle is way less for 5 minutes and then it returns. Keep opening the sunroof every 5 minutes is not something I want to do. I have asked the dealer to check the sun roof and grease it but that did not help. My feeling is that the noise comes from the sunroof shaking against the rubbers. I have tried greasing them with glycerin but that didn't really help.

Does anyone have the same problem and more importantly, does anyone know a cure?

volkswagens-for-life · Dec 17, 2020

In my experience my Volkswagen sun-roofs are solid and have never rattled. I dont think this is super common in the Touareg either.

If you put pressure on the sunroof w/ your hand when its rattling, does the rattling stop? Does it matter if the sunroof is open or closed?

Frank914 · Dec 17, 2020

It does not rattle when the roof is open, hence my suspicion of the rubbers getting rubbed by the sunroof making a rattling / squeaking noise. I haven't tried putting pressure on the roof when it rattles, I will try that to see if it helps.

redbarron55 · Dec 17, 2020

My experience is that VW sunroofs are mechanically solid, but tend to leak and be a general PITA.

adidas · Dec 17, 2020

Mine did the same, the rubber and plastic around the glass were bone dry. I lube everything with some silicone and no rattle for 2 years. Hope it helps.

C-ya · Dec 17, 2020

I think I need to lube mine. It is getting much colder now and when it is below 25°F / -4C , the sunroof on my 2010 rattles a bit, even on a smooth road. I did press against it last night while driving and it seemed to help. It is new to me so I am working my way through my normal routine for new to me vehicles and haven't gotten to that yet.

tadpole · Dec 18, 2020

Where did you get the liquid-moly lub ? I will get some. Thanks

Black Grouse · Dec 18, 2020

I have a rattle on mine when the blind is fully open - a rear seat passenger identified it as the alloy cross-bar of the blind -the rattle goes as soon as the blind is closed just a few cm - so my routine now is to fully open the blind and then just close it a tad.

Frank914 · Dec 22, 2020

Today I finally had a chance to lubricate the rubbers with silicone spray and it worked like a charm, the rattle is gone! I can enjoy a quiet car again!

volkswagens-for-life · Dec 22, 2020

Can't beat it!

annoying rattle from sunroof

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