But are you saying that V113's connector stays in place but you just add 3 new pins to it?
Exactly
This is what I'm still not understanding - Where do I get these flaps? Do we have part numbers for them? Do they have to be cannibalized from a climatronic intake box ($$$)?
Here's my current parts list that I have on order:
V107 Defrost Door Motor - 5Q0907511K - $24ish on eBay. I went with an older one from a 2015 A3 that was marked Swiss-made. Seems like these Valeo units are typically made in Poland or Mexico, depending on the year. I imagine these are all pretty reliable actuators regardless of where they are manufactured.
Defrost Flap Lever Kit - 5Q0898001A - About $21 at my local dealer for pickup.
V107 Screws - N10424102 (3 total) About $3 at my local dealer for pickup.
V425 Recirc Door Motor (with position sensor) - 5Q0907511L - About $28 on eBay for a newer Swiss-made unit from a 2018 Audi Q8
V107 and V425 Connectors - 6Q0972706 - $11ish for a five-pack of six-wire pigtails on aliexpress
Five spools of different color 20awg wire, 5 m length each - $11 on aliexpress.
Help me fill in the rest:
Recirc flaps - ???????
Anything else?
Common part list (for both, Denso and Valeo are the same):
Climatronic control unit J255
G107 sun radiation sensor: Theoretically, there are 2 versions, depending on the windshield. Sensor for PR.4GF windshield is 5G0907451 superdesed by 5G0907451C. For RP.4FW windshield is 5G0907451B superseded by 5G0907451D
G150 left vent temp sensor: 5Q0907543
G151 right vent temp sensor: 5Q0907543
G192 leg vent temp sensor: 5Q0907543A
(AFAIR, you had aliexpress retrofit kit, so you have 2 from 3 sensors, I think if you have them mounted on the left vent and foot well, should be enough)
G238 air quality sensor (black cover): 5Q0907643D superseded by 5Q0907643E
G238 air quality sensor integrated with G657 exterior air humidity sensor (brown cover): 4H0907658 superseded by 4H0907658D
(G238 in black cover is only air quality sensor, G238/G657 in brown cover is air quality and humidity sensor, you need only one of them)
G260 Interior air humidity sensor (is integrated with light and rain sensor, so it requires windshield with bracket to hold it): 5Q0 907 658 + gel foil 8U0 955 609
Connector for G260: 1C0973119B
Denso part list:
V107 demist flap motor with G135 position sensor: 5Q0907511K superseded by 2Q0907511G + repair kit 5Q0898001 with gears to install with V107
V107 connector: 6Q0972706
V107 Screws: N10424102x3
V425 recirculation and back-pressure flaps with G644 position sensor: 5Q0898304
Valeo part list:
V107 demist flap motor with G135 position sensor: 5Q0907511D superseded by 5WA907511B + repair kit 5Q0898001A with gears to install with V107
V107 connector: 6Q0972706
V107 Screws: N10424102x3
V425 recirculation and back-pressure flaps with G644 position sensor: 5Q1898304 superseded by 5WB898304
As an aside: why are some of the Valeo actuators labeled 13v and others labeled 12v? It seems like the 13v ones tend to be sourced from European models. Is this something we have to take into consideration? It's moot since the actuators I ordered are all from North American models that are marked 12v, but I was just curious why there are different voltage ratings for the same part number or whether it's just a simple round up/round down thing.
I think it doesn't matter. Probably some version or other internal labeling. Certainly it isn't voltage, as most probably, all of them work on 5V