[Monkonfou]

Hello, is there anyone who has already corrected the speedometer for an E82 with NCS Dummy and NCS expert, because I would need some guidance. I have on other forum that I have in the KMBI_PL2_C0X but I don't know it's what it is because I have from 05 to 09.
After I have to change the value of these two things K_ZHAL_TACHO and K_ZHAL_TACHO_KOMPAL. because to summarize for problem I have an error of 20km / h between the reader made with the needle and the digital one. the digital is my good real speed