I have noticed that the heating has to be set quite high and also my feet are always cold.

Today I worked out how to properly scan for error codes and have the following. Any help to diagnose/ fix gratefully received!

08. Heater and climate08. Heater and climate

DTCs: 2

----------------------------

328965 [0x050505]

B109154: Front air distribution door motor, No basic setting

Luftverteilungsklappe vorne - Kalibierungsfehler, Lernroutine nicht erfolgreich abgeschlossen

Status bits: 1

Priority: 2

Frequency: 1

Unlearning index: 19

Odometer: 198818 km

Date, time: 2025.11.27 21:34:04

Paramteric values:  02 86 91 26 13 00 E7 26 09 25 26 2E 00 FC A4 26 2F 01 36

Status: Test failed, Confirmed

----------------------------

329476 [0x050704]

B108B71: Fresh air, recirculation, air flow flap motor, Actuator jammed

Frischluft/Umluft-Staudruckklappe - schwergängig, blockiert

Status bits: 1

Priority: 2

Frequency: 1

Unlearning index: 61

Odometer: 200776 km

Date, time: 2025.12.28 11:12:52

Paramteric values:  02 86 90 26 13 00 5D 26 09 10 26 1F 02 82 26 1E 02 F1 A8

Status: Test failed, Confirmed

First point is always

if that doesn’t work, take out the pollen filter and make sure that’s all good and look inside to make sure there’s not a random bit of crap somewhere

48 minutes ago, Danoid said:

First point is always

if that doesn’t work, take out the pollen filter and make sure that’s all good and look inside to make sure there’s not a random bit of crap somewhere

Done this and now have the following faults.

============================

08. Heater and climate08. Heater and climate

DTCs: 2

----------------------------

328965 [0x050505]

B109154: Front air distribution door motor, No basic setting

Luftverteilungsklappe vorne - Kalibierungsfehler, Lernroutine nicht erfolgreich abgeschlossen

Status bits: 1

Priority: 2

Frequency: 1

Unlearning index: 132

Odometer: 204469 km

Date, time: 2026.02.22 09:52:23

Paramteric values:  02 86 79 26 13 00 97 26 09 1C 26 2E 00 FC A4 26 2F 00 FC

Status: Test failed, Confirmed

----------------------------

329477 [0x050705]

B108B54: Fresh air, recirculation, air flow flap motor, No basic setting

Frischluft/Umluft-Staudruckklappe - Kalibierungsfehler, Lernroutine nicht erfolgreich abgeschlossen

Status bits: 1

Priority: 2

Frequency: 1

Unlearning index: 132

Odometer: 204469 km

Date, time: 2026.02.22 09:52:23

Paramteric values:  02 86 79 26 13 00 97 26 09 1C 26 1F 02 80 26 1E 02 D7 A0

Status: Test failed, Confirmed

Hmm so the jam has gone, is it behaving better now or still same issue?

Wonder if you need to set the temps low then gradually high a few times to make sure all is good

If not then your motor could be failing

This is on a gold but going to be similar ish https://youtu.be/N9efnNxtntA

At the end of the video he’s turning it hot and cold, check yours is behaving the same too

Check the comments on that video from someone called tommot22, he fixed his issue another way but don’t understand it 🤪

Edited 22 February22 Feb by Danoid

Right I went for a drive this afternoon so increased them temp a couple of degrees every couple of minutes. Cycled through ice cold up to toasting hot nicely.

The horrible creaking sound on startup has gone so I’m guessing that’s the flap not stuck anymore.

The basis settings trouble codes are still there. I ran an adaptation from carscanner and it cycled through all the settings. Trouble codes still there.

Recirc button definitely changes airflow sound and volume so I’m confident that works as it should.

There’s no noticeable sound or airflow difference changing from face to feet. And closing all the top vents doesn’t seem to increase the airflow to feet either. But it’s about 70:30 face to feet and I’m comfortable with that.

So I’m going to leave it as is for now and maybe look at changing the actuator at some point for the main diverter. Will have a look at the manual and see how involved the task is.

Thanks for the help @Danoid

While i was lookin at some wiring to sort out the DAB issue, I took a look in the pollen filter area. recirc flap moves perfectly as far as I can see.

Something I did notice however is that the pollen filter is upside down. Obsiously with dirt on one side I didn't flip it over. Could this interrupt the airflow enough to cause issues with the flaps?!

Its a standard filter so have ordered a Bosch Charcoal one from ECP and will fit it this afternoon and give it another go.

Edited 23 February23 Feb by Binx1310

When you say your pollen filter had been mounted 'upside down' which way was the directional arrow pointing?

Arrow pointing up. Dirt on the top side so assume airflow is downwards towards motor

Just changed filter for new one. Re-calibrated and rescanned for codes. Still the same issue. Definitely improved on where it was when I started looking at it and good enough for now!

Edited 23 February23 Feb by Binx1310

Arrow down usually, indicating direction of flow.

1 minute ago, defsix said:

Arrow down usually, indicating direction of flow.

mine is now!

Resolved!

Fitted a new AC flap actuator this evening.

£16.99 from Amazon. https://amzn.eu/d/0cuh4qx9

20 Minute job once I realised one of the holes is filled with a pin and not an impossibly placed screw. Most awkward bit was getting the flap in the right position to a lot onto the actuator.

Also having the glove box out made me realise how the extra cabling for the Ali express reversing camera is probably what jammed the recirc flap too. So carefully positioned that when boxing everything back up. All DTC cleared.

I’ll have nice cool feet for the summer. Looking forward to winter and having warm feet too!

Any photos you could upload to help others with a similar issue?

2 minutes ago, Gabbo said:

Any photos you could upload to help others with a similar issue?

No sorry I forgot to take photos. it’s relatively straight forward for RHD. A bit more complex for LHD.

Remove end panel from dash passenger side.

Remove glovebox. 4 t20 screws across the top and one each corner. Lower it down and rest on a small bucket or box. If not you have to disconnect the wires so it’s not hanging on them.

Remove ac hose from glovebox for access. Just behind the ac hose on the side of the heater box (left hand side of the central dash vents) you can see a blue plug plugged into the actuator. Remove 2 t10 screws on opposite corners. Once these are removed the actuator slides off a locating peg.

You can then manually operate the white wheel that controls the flaps. Try to position it with the flat edge of the shaft in about the right position to match the actuator.

With ignition off, plug in the actuator.

You have a few degrees of twist available to slot it onto the shaft and then make sure it’s located on the mounting peg.

Refit screws. Ignition on and run calibration on the ac.

You can watch the actuator moving the flaps and arms. Check it all works then refit the bits you have removed.

It’s only a 5 min job to remove glove box so if I get a chance in daylight over the next few days I’ll take some pics.