Question about 1999 Volkswagen Passat

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I've a vw passat 1999 1.8 tdi - interior fan does not blow air?

Recently i tried to switch on the interior fan of the car and nothing happens.
it's as though the motor has died for the fan unit or the fuse has gone.
unfortunately, i don't know which fuse to change as the fuse box diagram doesn't clearly label the fan unit.
does anyone have a fuse diagram layout for this model?
or know which fuse number to change?
have checked the owners manual and it says to refer to the diagram which is useless if you ask me.
or would it be the fuse?
I've noticed lately water in the rear passenger footwell all the time.
obviously this happens more when it's wet outside.
could this be causing the problem with the fan?

Posted by on

  • aidan murphy Jun 16, 2009

    i read a load of other posts here and they were saying to check the relay in the engine compartment.

    wherabouts is that? would there be a fuse box in the engine as well for the fan?

  • aidan murphy Jun 16, 2009

    thx sealdogfish.

    i've changed some fuses like a headless chicken that were 10amp but i found a post that says the blower motor is usually a 30amp fuse.

    will change these and hope

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The water is an issue with a clog in your A/C drain pipe. If you can get up under your car, try to find the pipe and attempt to unclog it with a coathanger. You will get more water in the floor board the more humidity is being pulled out of the air. Not using the A/C (when weather allows) will help slow the appearance of water till you can get it unclogged.

The blower fuse is on the fuse panel inside the car. I want to say it like #25 on mine. it was on the far lefthand row and its a 30A green fuse

Posted on Jun 26, 2012

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I have a 99 passat that had a similar issue... the three knob control panel in the dash is a common issue.... there is a metal plate that slides to connect 2 other metal plates in the control unit to activate the blower motor. Mine and a couple others ive talked to all had the same issue. In this unit that metal arm is held by a plastic clip..... it breaks in turn dropping the metal plate and losing it connection. If ur handy pull it out pop the plate back in place and hot glue it. If not buy a new one its usually called a heater control unit and my local VW dealer says it $98 for the panel and $100 for labor. Hope this helps....

Posted on Jul 11, 2009

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It will be either the fan, the relay or the fan switch. You probably dont have a fuse for the fan. best course of action is to check the fan while it should be running for 12V using a volt or multi meter. if 12v is present then replace the motor, if not, check/replace the relay or fan switch

Posted on Jun 16, 2009

  • Caleb Judd Jun 16, 2009

    The relay box will be in the engine bay. a black box maybe 8 to 10 inches long with clips around it. take the top off and you should see the fuses. the fuse for your blower motor however may be located inside the car inside a kickpanel under just infront of one of the front doors. Im not familiar with this model of car so cant tell you excactly where it is.

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