Question about 2001 Volkswagen Jetta TDI
I was told that my ac-water drainage tube was clogged and this is the reason that when it rains heavily I get water in my front floor board. The heating coils are fine. Is there an easy way to clean out this drainage tube? Where is it located exactly?
The a/c drain tube is ONLY to drain a/c condensate coming of the evaporator in your a/c system. Has nothing to do with rain, but everything to do with high humidity. If you put you a/c in "ecirc" mode when using the a/c, you cut down on condensate draining by about 70%.
WItht he a/c running ona humid day, you should see condensate draining out of the drain tube on the passenger side under the car body.
The rain water is another story. You have an air intake we call a "Rainhat" that is under the leaf screen at the base of the windshield towards the passenger side. If you have rain water dripping or running into the rainhat, it will run into your heater plenum (the big, black plastic thing under the instrument panel).
Remove the leaf screen and look for leaves or other debris clogging the area around the rainhat. look to see if water is running along the metal trim above the rainhat and dripping into the rainaht opening.
I once fabricated a cover over the rainhat using the bottom of a plastic anitfreeze bottle. I made an opening at the rear so it could still draw air in without restriction. It solved the water running along the base of the leaf screen and drooping right inot the rainhat. It rusted the blower motor and ruined it.
Posted on Mar 03, 2009
do you have a sunroof?
if not is your heater working? busted heater matrix otherwise
drainage tube should be located behind the drivers side kick panel
Posted on Sep 18, 2010
drill a hole through the floor as a quick fix ,if it gets in let it out ,then check for the leak ,try under the firewall where the AC drain pipe is ,it could be the same pipe for drain water coming in from air intake vents
Posted on Jan 18, 2010
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Posted on Jan 02, 2017
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