Fitting a Facelift Heater Controls to Pre Facelift

[ChuckMountain]

Please refer to MFGF's post

I don't think this C6 climate unit:

4F1820043M 4F0910043 AUDI A6 C6 HEATER CLIMATE CONTROL UNIT 5HB008834-34 | eBay

Can be compared to the C7 version:

AUDI A6 Avant A/C Climate Heater Control Unit C7 4G0820043AC A2C81395200 2013 | eBay

Honestly I think, the digital version has an advantege only if you have cooled seats or a four zone version, because I never use the temperature control on this system.

Both ugly

The C6 digital one 2 zone

AUDI A6 C6 HEATER CLIMATE CONTROL UNIT 4F2820043P 05-08 | eBay

[AT.]

Both ugly

The C6 digital one 2 zone

AUDI A6 C6 HEATER CLIMATE CONTROL UNIT 4F2820043P 05-08 | eBay

I know it, I had it in my former C6, but I still prefer the new C7's non-digital version in my current car.

I think, this is absolutely off topic here, de gustibus non est disputandum.

[morski]

If you fit the 4 zone panel onto a 2 zone system you will get the temp dial on the mmi screen after cp removal and coding but you will also get non fully functioning zones and multiple errors logged.

[dougie175]

If you fit the 4 zone panel onto a 2 zone system you will get the temp dial on the mmi screen after cp removal and coding but you will also get non fully functioning zones and multiple errors logged.

That’s VERY interesting so replacing the controls alone will get the information displayed on the MMI? I am guessing the link between the controls and MMI however the information is sent is already there then?

Are the faults warning light faults (I cant imagine they are) or just DTC’s when a scan is completed? It may be worth me getting a second hand digital 4 zone, doing the coding and component protection then if this will get the display and controls working, then I can look at ways around either removing the 4 zone and creating a digital 2 zone system via some clever friends, or replacing the parts required to create a 4 zone system.

If you are confirming once component protection is completed and the coding is done the MMI will work and the controls will work with the existing system I will take a punt and buy a digital control

Thanks