Coded MGU affects EPS coding at official dealer?

[Juanmania]

Hey guys, so I have a 2021 G29 M40i, and I have had the MGU changed and coded to VIN to activate CarPlay and install the digital dash (all OEM parts). Recently, a noise started coming from the front, and they diagnosed that it may be coming from the Steering Rack (EPS). They are going to change it next month at my official dealer.

I believe in these newer cars, the EPS has to be coded. My car has no warranty anyway, so I don't care about voiding it. But could the car having a new MGU and codes affect the EPS installation and coding? Should I at least mention it? Do they just code the EPS locally, separate from the MGU, or do they plug the car into a central system, and stuff is going to pop up, and is there a chance they reset everything?

Thanks!

 

[B21]

Normally dealer level coding is full system wide in one go at F and G level I believe

 

[Juanmania]

Normally dealer level coding is full system wide in one go at F and G level I believe

Thanks for the reply. So, almost sure to lose the custom code? What would happen to the Digital Dashboard since the original MGU and dash was for analog dash? Would it be blank? or would they just reject the job and not do it?

 

[B21]

Thanks for the reply. So, almost sure to lose the custom code? What would happen to the Digital Dashboard since the original MGU and dash was for analog dash? Would it be blank? or would they just reject the job and not do it?

I don’t know..

Either it won’t do anything or it will set all things to the status the day it was built or a later revision

 

[Rockhopper]

Don't brand new parts automatically code themselves to the car? Many manufacturers do that.

 

[B21]

Don't brand new parts automatically code themselves to the car? Many manufacturers do that.

On E89s no..they need to be coded by ISTA-P, Protool etc I assume on G29 it will be E-sys..

 

[Juanmania]

I guess I will just mention the coded MGU and ask them if its possible to not touch it and only code the EPS module. I guess worse thing that can happen is a call to the guy that coded it in the first place. Was just a little worried about not having any dash at all.