Audi A4 B8 Fault code : P1 74200

[Rycka]

Hello i got Audi A4 S-Line Estate 2010  2.0TDI  Automatic gearbox (code LLA)

i got problem with gearbox when i put in Drive it drives but when i put in reverse it drives but it feels like  clutch is slipping so i scanned gearbox ecu and found 9 faults so i deleted 8 of them but 1 still stays on and it says  ''P1 74200 Active/Static clutch torque adaptation, adaptation limit reached''
and gearbox makes some noise so maybe somebody had this issue and knows how to fix it? 

i think maybe i need to change clutch discs?  maybe its an easy fix?

and when i bought this car on the service book it says that they have put new flywheel in the gearbox