HVAC has never worked properly Seat Ibiza 1.2 TSI V68, V70, V71, V107

[MEDiAHORAN]

Hi!

I've got a Seat Ibiza 1.2 TSI 2012 (steering wheel on left side), since I bought the car in March 2015 the fans haven't worked properly, quite often there is no airflow at all although I hear the blower motor spinning. Pulsating noises etc.

Mine looks exactly like this:

I have run VCDS:

------------------------------------------------------------------------------- Address 08: Auto HVAC (J255) Labels: 6R0-907-044.clb Part No SW: 6J0 820 043 D HW: 6J0 820 043 D Component: Climatronic H08 0707 Revision: S0000000 VCID: 254144932CE10FB399-8070 6 Faults Found: 00457 - Central Electronics Control Module / BCM (J519) 013 - Check DTC Memory - Intermittent Freeze Frame: Fault Status: 00101101 Fault Priority: 6 Fault Frequency: 1 Reset counter: 160 Mileage: 115860 km Time Indication: 0 Date: 2019.10.17. Time: 20:25:33 00229 - Refrigerant Pressure 002 - Lower Limit Exceeded Freeze Frame: Fault Status: 01100010 Fault Priority: 3 Fault Frequency: 1 Reset counter: 118 Mileage: 116037 km Time Indication: 0 Date: 2019.10.17. Time: 13:10:60 01271 - Positioning Motor for Temperature Flap (V68) 000 - - - Intermittent Freeze Frame: Fault Status: 00100000 Fault Priority: 3 Fault Frequency: 1 Reset counter: 149 Mileage: 116038 km Time Indication: 0 Date: 2019.10.17. Time: 13:11:52 01272 - Positioning Motor for Central Flap (V70) 000 - - - Intermittent Freeze Frame: Fault Status: 00100000 Fault Priority: 3 Fault Frequency: 1 Reset counter: 159 Mileage: 117437 km Time Indication: 0 Date: 2019.10.17. Time: 23:44:15 00710 - Defroster Flap Positioning Motor (V107) 000 - - - Intermittent Freeze Frame: Fault Status: 00100000 Fault Priority: 3 Fault Frequency: 1 Reset counter: 149 Mileage: 117555 km Time Indication: 0 Date: 2019.10.17. Time: 10:46:27 01274 - Air Flow Flap Positioning Motor (V71) 000 - - - Intermittent Freeze Frame: Fault Status: 00100000 Fault Priority: 3 Fault Frequency: 1 Reset counter: 149 Mileage: 117555 km Time Indication: 0 Date: 2019.10.17. Time: 10:46:27

Would changing the blower motor help? It does not show any error codes regarding this, where are all "flap motors" placed? I think V71 it to the right of the blower motor behind the glove box? Is there anyone who has replaced those in a Seat Ibiza 6J who has instructions from the workshop for the "most efficient" way possible to swap the motors?
I have seen videos of people removing those from other models or brands and then cleaning the potentiometer with WD-40 and putting it back together

 

[RUM4MO]

I don't think that you should replace the blower motor yet.
As you have discovered, the flap motors do seem to end up becoming faulty because the positional feedback system - ie the track and/or the wiper that contacts it, gets "dirty" and so no useful positional feedback is being passed back to the HVAC controller.
I've only ever once took a flap motor apart, it was the temperature flap motor on a 2000 VW Passat 4Motion, but I only did that after fitting a new flap motor, I'm not too sure that I'd ever bother to try cleaning up a flap motor as getting access to them on at least RHD cars can be tricky, and if you broke the flap motor or if for any other reason, it did not continue working for a long period, then I'd be more than annoyed if I had to get back in there and repeat that task.

Have you tried to get them to operate, ie travel their full range of movement but using VCDS - and seeing what each one's response is?

Sometimes, just sometimes, if you demand that each flap motor moves to each end of its travel, wait a minute, then demand it moves to the lower end, wait a minute, and repeat that maybe 10 times, you might end up cleaning the track and its wiper enough for it to start working correctly.

I'd expect that these flap motors are in different positions in LHD cars than in RHD cars, the temperature one was roughly at the centre of the car. When one of the air distribution flap motors stops working, you can end up with not much air being sent out in any direction - which sounds like what you have found.