Make sure that the new unit has the same functions (AC, Seat Heating/Cooling, Clean Air). In my case it was from hardware number 5F0907044AL to 17G907044BE.
- Copy the coding from the old
Control Unit 08(make a full backup)- Long coding example:
00000004200114011105000000101020
- Long coding example:
- Replace the old unit with the new one
- Code the new unit so that the
Long codingis identical to the old one- At first glance, everything works, except
A/CandClean Air.
- At first glance, everything works, except
- Flaps Calibration
Press MENU and A/C at the same time until the lights start flashing.
The same can be done with basic settings:
Control Unit 08 (Air Conditioning)
Basic Settings (4)
Adapt flap end stops
[Go]- Compressor First Run-In
Press Rear Window Heating and A/C at the same time until the lights start flashing. After a successful calibration, the A/C light will remain on.
The same can be done with basic settings:
Control Unit 08 (Air Conditioning)
Adaptation (10)
- Runtime for compressor run-in basic setting: 120s
- Duration of compressor run in: 60s
Basic Settings (4)
- Compressor run in, automatic start
[Go]After restarting the ignition, everything should work including A/C and Clean Air.
Sources: vag-coding.net, forum.obdeleven.com, forum.obdeleven.com.