Did you check for errors with vcds?
I did, as said there is a communication issue. Current thinking is to check the pin outs between the older and newer style module to see if the CAN line to the BCM is correct. Faults are as below
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Address 07: Control Head Labels: 8T0-035-7xx-07-H.clb
Part No SW: 8T0 035 729 T HW: 4E0 035 729
Component: Interfacebox H43 5570
Revision: 00000000 Serial number: 329FU077512394
Coding: 0015002
Shop #: WSC 00000 000 00000
VCID: 4A90E3CF25FF6A1A4B-801E
Subsystem 1 - Part No: 8T0 919 609
Component: E0380 BedienteilH07 0100
Subsystem 2 - Serial number: 00000000007791
Subsystem 3 - Serial number: 0104.06.070000000100010033Ăż
Subsystem 4 - Serial number: 010033Ăż
2 Faults Found:
00003 - Control Module
005 - No or Incorrect Basic Setting / Adaptation
Freeze Frame:
Fault Status: 01100101
Fault Priority: 5
Fault Frequency: 1
Reset counter: 54
Mileage: 133367 km
Time Indication: 0
Date: 2018.10.21
Time: 15:13:51
01043 - Control Module; Incorrect Software Version
000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 5
Fault Frequency: 1
Reset counter: 54
Mileage: 133367 km
Time Indication: 0
Date: 2018.10.21
Time: 15:14:00
Freeze Frame:
Bin. Bits: 00000000 00000010
Bin. Bits: 00000000 00000000
Bin. Bits: 00000000 00000000
Bin. Bits: 00000000 00000000
-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255) Labels: Redir Fail!
Part No SW: 8K2 820 043 AQ HW: 8K2 820 043 AQ
Component: KLIMA 3 ZONEN H04 0122
Revision: D1000000 Serial number: 01090320151271
Coding: 4806000000
Shop #: WSC 06325 000 00000
VCID: 78F46907CB93288AED-802C
1 Fault Found:
00457 - Control Module for Network (J519)
004 - No Signal/Communication
Freeze Frame:
Fault Status: 01100100
Fault Priority: 6
Fault Frequency: 1
Reset counter: 54
Mileage: 133367 km
Time Indication: 0
Date: 2018.10.21
Time: 15:09:10