In the original manual for towbar wiring kit us written to perform ,,functional test of the tow bar".

-Activate administration of program versions SVM.

-select function 3

-enter code and confirm

My question is what is it?Is it just a software update and does it have to be performed?

Also do I have to code CAN, BCM, engine, ABS, Park assist, Front assist after or before?

 

So I just found out its from ODIS software,so it does not apply to me as I will be using VCDS. Iam going to perform towbar coding from the ,,vcds tried and tested" section.

Anybody have anymore info about should I be aware of ......