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Condensation of Interior of 54 Volkswagen Passat

I have trouble with the car intrior misting up all the time & even having the screen blower on continually it does not clear fully. I also have to use the heated rear screen frequently. A couple of friends have mentioned the pollen filter & also the aircon could need re gassing

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  • Cars & Trucks Master
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Correct.
The ac runs in defrost mode to help dry the air blowing on the windshield. The cabin has too much moisture in the air.
You need fresh outside air and it needs to be dried by the ac to work correctly. So if the cabin air filter is dirty you would not get enough fresh air.

Posted on Dec 08, 2012

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I have recently acquired a 53 reg (2004) VW Passat TDI and have the same misting problem. However, my solution was simpler. There is a well known design fault in older VW Passats where the drain holes in the plenum chamber get blocked. This causes rain water to collect and then when the outside temperature rises you end up with condensation/mist on the interior of the windows. In fact, VW did a recall on this not so long ago following a class action law suit in America.
My Passat has 2 drain holes. One under the battery and the other under the brake servo. You need to remove the battery. It is a fiddle to get to the drain hole under the brake servo but it is possible with a bit of fiddling. You just remove the rubber drains and clear the crud. An absolute rubbish design. If you don't do this then water can collect and spill into the electrics causing no end of problems.

I noticed on my car that the recall had been done (e.g., the rubber drain hole was not present under the battery) ... however, the morons had not bothered with the drain under the brake servo - presumably too difficult for them!! So even if the recall has been done the chances are the mechanics at VW have skimped on the job. Since I did this, my windows no longer mist up.


Hope that this helps. Duncan.

Posted on Jan 03, 2013

  • Duncan Webster Jan 03, 2013

    Just to add ... the recall also extended to a leaking seal on the Pollen filter, but mine was fine :-) You can get to the pollen filter relatively easily as you need to remove the same items when removing the battery. There is a procedure on the internet if you search "Passat P9 Recall" (PDF document)

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Posted on Jan 02, 2017

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SOURCE: windows misting up !!!!!

there is some mositer in the vents of the car i think there may be a leak letting water in to a vent on your dash fixleak then find the water in the duct work of the car then drain then let it dry

Posted on Dec 07, 2008

garyq1970
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SOURCE: rear brake pad installation 99 volkswagen Passat

If you can't see diagrams(sometimes happens) let me know and I will get them to you

  1. Raise and support the vehicle. Remove the rear wheels.
  2. If equipped, disconnect the brake pad wear sensor from the harness.
  3. Counterhold the lower sliding pin using a thin open-end wrench and remove the caliper-to-sliding pin hex bolt.
  4. Pivot the caliper upward or if necessary remove the upper caliper-to-sliding pin hex bolt.
  5. Using a brake caliper retraction tool, select the appropriate sized piston press arbor and install the tool onto the brake caliper. Following the tool manufacturer's recommendations, use the tool to rotate the caliper piston clockwise as it is pressed into the brake caliper housing, until it is fully retracted.
0900c152800c30b8.jpgUse a thin open-end wrench to . . . 0900c152800c30b7.jpg. . . support the caliper sliding pin when removing the caliper mounting bolt 0900c152800c30d7.jpgUse a disc brake caliper piston retracting tool that will rotate the caliper piston as it is pressed into the caliper 0900c152800c30d8.jpgThe rear caliper piston is slotted to allow a retracting tool to rotate the piston when replacing the brake padsTo install:
  1. Clean the brake caliper and all sliding surfaces. With the caliper piston pressed fully back into the caliper housing, check for leaking fluid and damaged dust boots.
  2. If equipped, install a new brake pad wear sensor in the pad if the plastic part has been worn through on the old sensor. New sensors are not required unless the wire inside the plastic part has been exposed.
  3. Lubricate the slider bolts with approved brake grease.
  4. Install the brake pads onto the bracket assembly, and then carefully lower the caliper over the caliper mount. Check and make sure that the pad springs are correctly seated.
  5. Replace all removed caliper-to-sliding pin bolts and torque to:
  6. 1990-97 Passat models: 25 ft. lbs. (35 Nm)
  7. 1998-00 Passat models: 22 ft. lbs. (30 Nm)
  8. If equipped, connect the brake wear sensor wire to the harness. Check for a good connection as most problems with the sensor circuit are caused by faulty connections. Check that the wire is held by the loop in the dust cover and the connector is held at the clips.
  9. Install the wheels and hand tighten the lug bolts. Lower the vehicle carefully until the tires begin to contact the surface and torque the lug bolts to specification in a crisscross pattern to:
  10. M12 x 1.5 lug bolts: 81 ft. lbs. (110 Nm)
  11. M14 x 1.5 lug bolts: 89 ft. lbs. (120 Nm)
Feel free to contact if you have any questions

Posted on Nov 15, 2008

  • 1 Answer

SOURCE: Turn Signals not working

The blinker button (hazard lights 4 way blinking) which is also a relay, is broken. with time the tention on the metal contacts gets loose so the contact only happens sometimes. pop it out with a thin screwdriver and replace it, 15$ on ebay...

Posted on Oct 12, 2008

motor1258
  • 6674 Answers

SOURCE: rear brake pad installation 99 volkswagen Passat

I use a "C" clamp & screw it in slowly. If need be, leave cap of reservoir, and/or crack open your bleeder screw. Bleed after install.

Posted on Dec 30, 2008

  • 15 Answers

SOURCE: 2004 VOLKSWAGEN PASSAT V6 NO

I would also have the system power flushed . The termostat on this cars can be a very expensive item to replace..probably 6 hrs of labor at $80.00 hr. The irony of all , the part cost is less than 30.00 dollars.Have it flushed for $100.00 to 150.00 dollars

Posted on Jan 03, 2009

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