E-LSD delete and other NCS options

[C8H18]

Evening all.

Having fitted a proper LSD to my car, it made sense (to me at least) to code out the e-LSD with NCS (SPERRDIFFERENZREGELUNG to nicht_aktiv). While I was playing with the DSC module coding I also deactivated the brake fade compensation (FBS to nicht_aktiv) and brake standby (BB_RAB to nicht_aktiv). One thing that I couldn’t work out was “GMB” which was set to aktiv. NCS Dummy didn’t give a translation.

Does anyone know what this is? Thanks.

 

[Haro]

Not sure about GMB but GMR relates to yaw control.

 

[Toed64]

Interesting. What type of LSD are you going for?

My 135i had M3 ARBs and poly bushes, so the inner rear wheel would cock on sharp, lower speed corners and often when pulling out of T-junctions. I thought about getting a Quaiffe. Quaiffes, whilst good, stop locking (or biasing) if one wheel loses all grip, as they do when one wheel is cocked. I wondered if the e-lsd might actually be useful under those circumstances.

Is it straightforward to code out the other nannies?

 

[Anonymous]

Mine's an E89 with a Quaife. I ran it with e-diff still on which I think Birds (who fit most BMW versions) recommends as in theory that addresses your issue of an unloaded wheel..I've since coded it off.

The LSD does such a good job that for road use IMHO having the e-diff interrupt things seems an abstracted level of control that is not required!

You still have all the DSC functions there (unless you code those out)

 

[C8H18]

Interesting. What type of LSD are you going for?

My 135i had M3 ARBs and poly bushes, so the inner rear wheel would cock on sharp, lower speed corners and often when pulling out of T-junctions. I thought about getting a Quaiffe. Quaiffes, whilst good, stop locking (or biasing) if one wheel loses all grip, as they do when one wheel is cocked. I wondered if the e-lsd might actually be useful under those circumstances.

Is it straightforward to code out the other nannies?

It an MFactory helical ATB diff. Already fitted. I know there are issues with these diffs when one wheel experiences zero traction. But I’m not sure my Z4 cocks a wheel like a Citroen Saxo... And, yes, the other nannies are easy to code out. I’m just trying to find out what the GMB parameter is.

 

[LittleZ4]

GMB - for what it's worth all I know is that the GM part means general module. The B is the bit I'm unsure of, maybe body?? Or something in German? (Probably not been that helpful really lol)

Edited: For what it's worth GMB module in Google brings up fuel pumps, fuel in German (now I'm not a German speaker) seems to be "Brennstoff". So at a guess Id say it's potentially related to the fuel pump? Happy to be corrected.