Question about 2001 Volkswagen Jetta TDI

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Water leaking in to car from clogged drain tube

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?

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  • yadayada
    yadayada May 11, 2010

    what tube are u referring to, drains what?

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  • Volkswagen Master
  • 4,369 Answers

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.

Good luck.

Posted on Mar 03, 2009

5 Suggested Answers

  • 20 Answers

SOURCE: 2004 mitsubishi endeavor where is drainage tube

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

  • 10 Answers

SOURCE: How to clean clogged AC-water drainage tube?

use a wet vac and **** on the line at the firewall were the water normally drips out

Posted on Aug 23, 2009

alicantecoli
  • 21990 Answers

SOURCE: water on floor behind front passenger seat

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

  • 14 Answers

SOURCE: i have a 2004 trailblazer..my

should be on the fire wall on the right hand side near were the ac lines go through.

Posted on May 15, 2011

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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