DIY 2005 XC90 Sunroof drain maintenance Old topic but once every 10 years, I'd clean this drain tube to prevent overflow of water inside cabin, causing expensive damage. Very very easy thing to do. About 10-15 min per side. TOOLS: - Small screwdriver - 8-mm socket and extension - Zip ties (optional...

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(thanks, btw!)

I would explore your sunroof drains and the tubing. I had a similar problem on my 2004 XC90 and it was the tubing - I used the splice trick - cut current tube and add about 1/2" of length by coupling the two pieces back together with a larger diameter hose which has an ID equal to the OD of the...

My bad, front drains are such a commonly reported concern that I made the assumption that they had already been checked. Check your drains and let folks know what you find- https://www.matthewsvolvosite.com/forums/viewtopic.php?f=10&t=72515 , https://forums.swedespeed.com/showthread.php?102526-H...