Multitronic Forum

Hello,
I want to ask you something.
Model : Audi A4 2.0 TDI Multitronic (8 Speed) 143 hp (2011 Model)
Part number : 8K5 927 155
Gearbox serial code : MMV

Two track number: 0AW 927 156 K - S209

My old hw code: HW: H04

New hw code: HW: H08

In the old code: 00406532A3

Newly written code: 00406532A9

These are the differences between them. Would it matter if I encode the new track and install it?

Hello and welcome to this forum,

please be informed that the GCU forms part of the immobilizer system and has component protection. The only chance you have is a 1:1 copy of the firmware from the existing GCU to the new GCU. Former firmware should fit to newly designed hardware.

If you are only looking for an update of the GCU you should contact Audi.

Kind regards,

Horch