M track mode w/ZHP rack

[Cubieman]

A long time ago I coded M track mode and with a ZHP rack ready to install I want MTM to work correctly.

I remember having to make changes for the brakes and steering rack as the vehicle doesn't have those ZCP components.

Two questions:

- Is the ZHP rack similar enough to the ZCP as to not cause issues? I forgot what the ratio difference is of any.

- What selection do I need to make for a ZHP rack?
I believe it was "wert_05" or something similar I selected for my green tag rack.

[Slideways]

ZHP is 13.7:1 and ZCP is 14.5:1. ZHP is closer to ZCP than it is to standard 15.4:1.

Settings are in the M-track mode PDF - https://nam3forum.com/forums/forum/m...3-m-track-mode

Edit: ZHP rack fitment on M3 below vvv

[Obioban]

ZHP is 13.7:1 and ZCP is 14.5:1. ZHP is closer to ZCP than it is to standard 15.4:1.

Settings are in the M-track mode PDF - https://nam3forum.com/forums/forum/m...3-m-track-mode

IIRC the ZHP is also 14.5:1 when installed in the M3-- 13.7:1 when installed in the non M e46.

Edit: confirmed:

https://nam3forum.com/forums/forum/main-forum/e46-2001-2006/189-comprehensive-steering-information-thread?p=193#post193

[Cubieman]

I see the PDF has instructions on coding a non-ZCP rack but now that I have (effectively) a ZCP what is the setting that I now need?
Not sure if I noted that before changing it unfortunately.

Could I go through the steps again for MTM and would it select the ZCP rack setting by default like the first time around?

[Slideways]

Cubieman

Summary of CSL/CS codes taken from that thread (standard M3 in brackets):

PRE_MSR = aktiv (nicht_aktiv)

BAUART_MK60 = csl (coupe_m)

TRAKTIONDIFFERENZREGELUNG = aktiv (nicht_aktiv)

DTC_LAMPE = aktiv (nicht_aktiv)

DRUCKMODELL_HINTERACHSE = typ_3 (typ_2)

UEBERSTEUERN_MUE_1_2 = wert_11 (wert_09)

UNTERSTEUERSCHWELLE_2 = wert_04 (wert_05)

UNTERSTEUERN_MUE_1_2 = wert_03 (wert_02)

LENKWINKELKENNLINIE_2 = wert_04 (wert_05)


M-track codes explained:

TRAKTIONDIFFERENZREGELUNG
DTC_LAMPE and possibly PRE_MSR (Not really sure what this one does)

DRUCKMODELL_HINTERACHSE is for the larger piston in the ZCP/CSL calipers

LENKWINKELKENNLINIE_2 is for the quicker steering rack in the ZCP/CSL

BAUART_MK60 seems to control when ABS intervenes (some people buy ZCP modules because apparently ABS doesn't kick in as early, I think this is the line that controls that)

The rest of the values seem to adjust when the DSC intervenes when everything is on. On my car, I left everything coded at the ZCP values except for the steering angle value since I still have the standard M3 steering rack.

Also you must recode the cluster for the M-track symbol to light up. The line you want to set is "ANZEIGE_HOCHLADEN" (set it to aktiv)

[Cubieman]

Cubieman

Thank you.