Leaking Moonroof 780

[Cartrivision1]

Hi, I brought my 91' Coupe through a car wash a few weeks back. I was horrorfied to find afterward that water had got into the car through the moonroof and had collected around the overhead light(s) and a bit had dripped onto the carpet. I have not noticed any leaking during rains, so I assume it was due to the high pressure wash.

I want to fix this before it gets much worse, and also I am pretty anal about my car and keep it up to the best of my ability. Is this a common occurence with Volvos, and if so where does it commonly leak and is this something a novice could fix or should I best leave it to a glass shop? I want to still be able to use the moonroof so I dont want to caulk it so the moonroof is permanently closed.

thanks,
CTV

 

[Perry Murlless]

Very often, what happens is that the drain(s) that channel water away when the moonroof is open get clogged up. I use a straighten-out coat hanger or a nice long piece of 18 gauge copper wire to push down the drain tubes to clear them. Be careful though, sometimes the metal tubes connect to plastic or rubber drain hoses that you could puncture or push off if you get too agressive with your plunger wire. After that's done, get a turkey baster, fill it with chlorine bleach and squirt some down the drain(s) to clear out the fungus/moss. Then flush your baster with clean water 'cause chlorine is not good for the rubber bulb!!

 

[James Sweet]

Hi, I brought my 91' Coupe through a car wash a few weeks back. I was horrorfied to find afterward that water had got into the car through the moonroof and had collected around the overhead light(s) and a bit had dripped onto the carpet. I have not noticed any leaking during rains, so I assume it was due to the high pressure wash.

I want to fix this before it gets much worse, and also I am pretty anal about my car and keep it up to the best of my ability. Is this a common occurence with Volvos, and if so where does it commonly leak and is this something a novice could fix or should I best leave it to a glass shop? I want to still be able to use the moonroof so I dont want to caulk it so the moonroof is permanently closed.

thanks,
CTV

The usual cause on sun/moon roofs are clogged drain hoses, it's possible to get water to leak even if the drains are fine if you blast too much in there with a hose.