2011 q5 Water leak right rear fuse compartment
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AudiWorld Junior Member
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2011 q5 Water leak right rear fuse compartment
I replaced the rear parking controle module and saw water on the floor of the compartmrnt. Any suggestion where to look for source of the leak? Sunroof drain flushes 2 months ago, appear fine.
Thanks for any assistance.
Thanks for any assistance.
AudiWorld Super User
Joined: Dec 2001
Posts: 13,974
Likes: 3,367
From: Georgia
Going to be sunroof drain, tail lamp seal, or window seal. Maybe rear lid seal. Suggest you remove all the rear interior trim and the headliner and then park in a heavy rain storm and watch and see where it seems to show up from.
AudiWorld Super User
Joined: Nov 2013
Posts: 3,930
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From: 2014 Q5
Use a smoke or fog machine.
That's the way pros find leaks. Any good dealer or body shop WILL have a smoke machine. You fill the car with smoke and watch to see where it comes out--because water can move laterally unseen.
Some folks would use a cheap fog machine instead, but that may leave some residue.
The other good trick (commonly used in boatyards) is to take a leafblower, or the exhaust frkm a shopvac, and duct tape it through a corrugated cardboard. Duct tape that into a window and let it run.
You are pressurizing the car. Air will leak out through the cabin vents--but also from the source of the leak. So...you keep tossing soapy water by the roof drains, the tail light weatherstrip...whatever is leaking will actually blow soap bubbles. Yes, that really works!
There is also a drain tube in the gas filler panel, hidden just below the gas cap. I used weed-wacker "string" to route mine out. It floods from rain, it clogs easily, and if someone tried a stiff wire to unclog it? That could tear it and pour water into that "fuse" bay.
Some folks would use a cheap fog machine instead, but that may leave some residue.
The other good trick (commonly used in boatyards) is to take a leafblower, or the exhaust frkm a shopvac, and duct tape it through a corrugated cardboard. Duct tape that into a window and let it run.
You are pressurizing the car. Air will leak out through the cabin vents--but also from the source of the leak. So...you keep tossing soapy water by the roof drains, the tail light weatherstrip...whatever is leaking will actually blow soap bubbles. Yes, that really works!
There is also a drain tube in the gas filler panel, hidden just below the gas cap. I used weed-wacker "string" to route mine out. It floods from rain, it clogs easily, and if someone tried a stiff wire to unclog it? That could tear it and pour water into that "fuse" bay.
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