Here are a couple things to try. I've attached a bulletin for the mirrors, and the manual suggests a reset of the memory for the seat as a first step: Make sure you have the anti-theft codes for the audio system and the navigation system (if equipped). Make sure the ignition switch is OFF. Disconnect the negative battery cable for at least 30 I checked the repair manual, and here is how the seat HVAC system works: "The driver and passenger heated and vented seat switches are located near the HVAC controls on the center stack. The BCM is the heated and vented seat system master. It monitors heated/vented seat switch activations to determine user requested operating mode. There was no response from the buttons whatsoever, completely as if they've gone dead. Trying to reset the seat position from scratch did not work either as I suspect that along with the "1" and "2" buttons the "set" button also does not work. I ended up adjusting the seat without using memory, but then Problem 2: Quick fix for a memory seat button not working on your Porsche. I have a 2013 Cayenne but this should work on other models also. My passenger side button was The package covers the adjustment of the seats and the door mirrors with each setting stored on each the keys. It's not a cheap package at £1430 on the SE model and £1195 on the S-Line. Quite a lot more than the £550 for the electric seats (without memory) on the A3 range. S. Audi will not release repair information to independent repair shops so the part has to be replaced and reprogrammed at the dealer. Dealers are only required to carry support their products for 10 years I believe. After 10 years the dealer will not work on your Audi and some of your electronics will not be able to be repaired if they fail. 3. Plug in the Rear HVAC Control Module and Vent cables (Don't install them into the housing yet, Need to test and visually verify the flap motors are working normally) 4. Clear the Rear HVAC faults using Vag-Com. 5. Go to Basic Settings and perform flap motor end stop calibration. Watch the flaps open and close. Airbag control unit, seat occupancy detection: 10: 15 — — 16: PSM control unit, electric parking brake (EPB), PDCC: 5: 17: Xenon headlights, right: 25: 18 — — 19: Transmission control unit/ transmission prewiring: 5: 20: 2011-2012: Seat memory control unit, seat adjustment switch for right seat 2013-2017: Seat memory control unit, right .

audi seat memory not working