A6 C6 3.0 TDI BMK need original ECU program
 

Hello,

I have audi a6 3.0TDI with BMK engine. I know from a previous owner that is uploaded to the ECU, "virus"on the 248PS.

I want to go back to the original program 224PS. I am available for VAS and VCDS.

How to upload to the ECU, the original program?

Waiting for reply.