Mk2 Front Screen Misting- No Blower?

[Sparkyalan]

Hi guys

Finally getting around to my HVAC probs having spent the winter peering through water dripping down the interior of my windscreen. I have noticed several posts about demist probs but none related to this. My Mk2 1.9 TDI ghia windscreen should have a heating element...it doesn't. I should have a car manual about the blower switches and controls?..I haven't. My air con doesn't work (and a quote to replace one pipe at over £200) means it isn't going to be working anytime soon.

Now, the heater works, as after 15 minutes, I get lovely warm air blowing out of the front foot wells or the vents in the dash, but no matter what buttons I press, nothing comes out of the windscreen vents. A tissue paper placed there barely moves whatever setting I put it on. Now I believe that there should be a mechanism / flap/ deflector that sends that nice warm air up to the windscreen ...presumably a motor driven flap distribution circuit. Does anyone have any experience of this? At this stage, I do to want to dismantle the entire dashboard to get at the motors. Is there a fuse anyone knows of? I do need new cabin/ pollen filter, but as the blower works ok, it's the direction of the warm air that I have a problem with. Any advice will be very helpful

[xavier]

does it sound like an asmatic sucking air through a straw? if so could be the filter. probably worth a try anyway, £6 for a fram filter from ebay. I believe the blower mechanism can be reached by removing the glove box.

[acecard]

Are you sure your w/s doesn't have a heating element? They are not always easy to see being so fine and sometimes even when working take quite a while to demist. It happens to me and I would expect more from a heated front w/s that draws serious amps, based on its fuse rating.

Its quite normal to have some dripping water on the inside of the windscreen in winter when ice forms on the inside. makes a mess when it dries - also happens to me a lot.

Edited February 16, 2013 by acecard

[Sparkyalan]

Thanks for the responses guys. Firstly, I believe the screen is a replacement and is not wired up. Secondly, the blower is working fine, pumps out loads of hot air in foot well and dashboard vents, but no matter what button I press, It will not pump up through the vents for the screen. I expect some misting in winter but it is seriously undriveable at times. In older cars, you would use a mechanical lever to send the warm air in the direction you wanted or set for half and half. It would operate a flap that would divert the air down the appropriate pipe to the required vents. I presume this is the same but done electronically. I was kinda hoping someone would say " oh yeah...I had this, it was fuse 23 or a cross wire behind the stereo etc rather than rip everything out but I guess this is what will have to be done. According to Haynes, pretty much all the dash has to come out with 2 pages of instructions! Thanks though guys.

[chrispb123456]

Assuming you have the climatronic you can scan the hvac with vagcom that will give info on flap motors not working etc

[Sparkyalan]

Assuming you have the climatronic you can scan the hvac with vagcom that will give info on flap motors not working etc

 

Hi Chris...yep, it does state problem with motor flap and I assume this to mean the distribution flap for the air. Do you know if this particular motor is fused as these things usually are. I just don't want to spend a day taking the Dash out as according to Haynes, it's the only way to get to the motor.

[viperclive]

Hi, when you say it's a replacement screen and not wired up, is it a pucker heated screen? If so the wires/connections are under the small removable sections of dash left and right on top of dash, not a solution to flap but may get your screen working.

[Sparkyalan]

Thanks viper...I'll have a look at that. I suspect this car has been a Lithuanian rebuild. Wiring all over the place, no bulkhead scuttle tray etc . I suspect that car was in a smash at some stage although no record of a write off. I just doubt they would have gone for a screen with an element when a standard screen is cheaper. Will look tho.

[richj]

I'd be glad to hear if you get to the bottom of how to fix the vent motor as my 1:9 tdi has a similar problem - nothing coming out of dash vents vagcom gives a fault with vent motor. I've searched this site but can't find anything on this problem. Thought about spaying wd40 into vent to hopefully free off motor?

[BigDog]

See attached, hopefully this will be of some use to you guys.

 

 

climatronic servicing in car.pdf

[Sparkyalan]

Ahhh...what a brilliant find. Many thanks BigDog. Now all I need is a bit of weather improvement and ill have a crack at that. Cheers buddy.

[aslo12]

Sparkyalan,

Did you manage to sort out the ventialtion problem. I think the front air distribution motor is not working on my new purchase( 02reg 1.9tdi Auto Gal). I've got no air coming up through the centre console or to the front windscreen, but plenty into the foot well. I plan to have a look over the next few days. Hope its accessible without stripping all the dash down :)