Hello,
i have some unit on my warehouse with a software letter to change for solve a lot of problems.
example: for a car i need a unit 8W0 035 036 A and i have buyed a unit with "8W0 035 036 A" label... but.... if i make a diagnosis the letter are "8W0 035 036 C"
are possible to change this letter?
with MMI 3G i remember i can modificate the eeprom with VAG-Pro.
there is a similar method for make this modification?

Thanks in advance