Help- Audi A6 2005, Electronic brake issue

[mike18uk2001]

Hello, I not long had my Audi A6 and had an issue with the rear caliper not working, I have had the caliper renewed, some wiring and a servo (i think it is, in the boot under the scissor jack and tools) Now the work is done the brake works fine but still gett the message up saying malfunction. Lad who did the workwas told the servo?? is a plug and play no need for anything else.
I am no good with these sort of things and would appreciate any help, Thanks Mike

 

[Ste_Nova]

vcds scan, clear the fault code and retry

 

[mike18uk2001]

Have tried resetting the codes but still no good. Been told it requires programming and local Audi garage want £800 to do it. Need something a lot cheaper if anyone knows anywhere near Middlesbrough