MK5 HVAC/Climate Control expert needed!!

[rich83]

So, I have a problem with my blowers.

At first they work fine, air comes out of all the correct places. After an hour or so of driving, it seems like it goes into "lock down mode" and regardless of the climate settings... Only the equivalent of a weasels fart comes out.

I have replaced the climate panel..... to no avail.

I have performed a basic settings reset on the climate flap..... To no avail.

I'm struggling to think what the issue could be here. Anyone got an idea??

Thanks
Rich

[Eddie-NL]

Does it sound like the air flow is going elsewhere?

I had this a couple of times
Turned the vent on to clear the windscreen, maxed the airflow but no air coming out. But I could here the airflow under the dash. No faults showed up when scanned

It sorted itself out the next time I went out in the car. So I think it is some flap that got stuck

[rich83]

Well the fan can be heard Eddie from under the passenger side dash.... but its like there is a main flap that after a while just thinks "f*ck it... im not going to open"  

If i went out to my car right now.. the fans and flaps would operate correctly.

[Eddie-NL]

Hopefully but no guarantee

it did sort itself out on my car, sounds like the same problem

[rich83]

This has been happening for a while now though. 2/3 months. :-(

[Eddie-NL]

This has been happening for a while now though. 2/3 months. :-(

happend a first a few years ago, oddly enough when I took the car for a service

Told the dealer, they checked it and said it was fine.

[jason_rmh]

I had a similar issue.
The recirculation flap motor was broken and for some reason was cutting off air to the cabin and only a little was coming out of the vents.
It's directly being the glove box.
Jas

[RedED30]

Are the flap motors controlled via a stepper motor/solenoid? Could be on it's way out or poor/partial connection?

Does the HVAC show faults for things like that?

[rich83]

I had a similar issue.
The recirculation flap motor was broken and for some reason was cutting off air to the cabin and only a little was coming out of the vents.
It's directly being the glove box.
Jas

Is it easy to get to, and swap?

Just to note... there are no VCDS fault codes present. Ill check this again tomorrow!

[rich83]

I had a similar issue.
The recirculation flap motor was broken and for some reason was cutting off air to the cabin and only a little was coming out of the vents.
It's directly being the glove box.
Jas

Any more info please? 

[Squeeguk]

I would have thought if it was the flap motor, it would bring up errors on VCDS. I know when I put my Mk6 panel in, I had issues and ended up having to replace the whole flap assembly. It was giving me errors on the flaps in VCDS.

If that is your problem, hopefully you don't need to replace the whole flap assembly as that is a dash out job and a lot of expletives will be uttered.

[rich83]

Well no errors in vcds mate.. 

[Squeeguk]

Yeah, does sound like a possible flap issue though. If there are no errors, then I am not sure what it could be. You've done the compressor start stop process right? Another thing to try is try it without the flap motors connected and see if it does the same thing. You will need to take the glovebox out though.

[rich83]

Thats an idea... any pics of where/what i need to do please?

[Squeeguk]

Popping out now for a little while. Will start googling when I get back. You need info on the glovebox removal or?