Mr Spanner

Hello, I am a new subscriber. I would really appreciate some help with an Audi A6 C6 2006 3.0 TDI Allroad. The passenger rear carpet was wet and the MMI was not working. I lifted the carpet and found the connector was totally corroded on the Bluetooth Module. I fixed the water issue, bought a loop back fibre connector to confirm the MMI would work with this by-passed, which it did so I bought a second hand Bluetooth module and all appeared OK. The MMI however has many functions not present including the adaptive suspension, parking sensors and steering wheel controls etc.

I bought a VCDS cable to enable the hidden menus on the MMI. I have followed the procedure for enabling the hidden menus but I get two faults that will not cancel. These are as follows:

Address 07: Control Head Labels: 4F0-910-7xx-07-H.clb
Control Module Part Number: 4F0 910 732 S HW: 4E0 035 729
Component and/or Version: Interfacebox H43 5150
Software Coding: 0000000
Work Shop Code: WSC 00000 000 00000
Additional Info: 4F0910609E Bedienteil MMIC6H01 0050
Additional Info: Geraet 00000
VCID: 33642750523569DE47-8066
Fault Codes have been Erased

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: 74
Mileage: 332696 km
Time Indication: 0
Date: 2005.11.10
Time: 14:56:34

01042 - Control Module; Not Coded
000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 7
Fault Frequency: 1
Reset counter: 255
Time Indication: 15

The MMI reboot procedure also does not seem to work. Setup, centre button and top right button will not cause it to reboot.

Can anyone advise how these issues can be resolved? I am unable to access the hidden menus. The MMI basic functions work, radio, maps etc. As an aside to this I have a problem with the rear suspension dropping but this is not consistent. Sometimes it will stay up overnight and sometimes (mostly) it won't. Both sides drop the same amount and come up when the compressor is started. I am wondering whether the suspension dropping has something to do with the ECU not controlling the valves as it doesn't know it has adaptive suspension?

The software version is:

SW: C6-HU 51.5.0 0739
FC SW: 05035AFC6AB320050

Any help from the experts would be much appreciated.