M4 CS EDC Coding?

[Mr. Hankey]

Originally Posted by Almaretto

VO coding VDC with modified typecode and series.

Almaretto, So to do the M3 CS VO coding for EDC just change Typeschlussel to CS and chassis code to M3CS (F083?) and VO just VDC? Any reason to code ICM at all?

Thanks in advance.

[Almaretto]

Originally Posted by rhk118

Almaretto, So to do the M3 CS VO coding for EDC just change Typeschlussel to CS and chassis code to M3CS (F083?) and VO just VDC? Any reason to code ICM at all?

Thanks in advance.

F083 is M4 Cabrio.

Some do ICM & DSC. I usually just touch GHAS, EPS, and VDC. Make sure to have ISTA+ ready in case you need to re-calibrate afterwards.

[Racer20]

Originally Posted by rhk118

Almaretto, So to do the M3 CS VO coding for EDC just change Typeschlussel to CS and chassis code to M3CS (F083?) and VO just VDC? Any reason to code ICM at all?

Thanks in advance.

My 2015 M3's type code was 3C93. I replaced this with the M3CS type code (8M93) and VO coded the VDC module only and it seemed to work.

I had already coded ICM and DCS to the competition package and EPS and GHAS to GTS settings. I didn't have to recalibrate anything with ISTA this time.

[Mr. Hankey]

Originally Posted by Racer20

My 2015 M3's type code was 3C93. I replaced this with the M3CS type code (8M93) and VO coded the VDC module only and it seemed to work.

I had already coded ICM and DCS to the competition package and EPS and GHAS to GTS settings. I didn't have to recalibrate anything with ISTA this time.

8M93 is US spec M3 ZCP. 3S73 is US spec M3 CS. I believe.

Will try the FDL of the VDC first to maintain everything else at ZCP coding, and if that doesn't work then VO code it and hopefully not have to fire up ISTA to calibrate.

[FSociety]

Originally Posted by jmciver

Now that would be interesting, adding the CS EDC coding. Even though it is technically not engine tuning, the CS EDC coding, along with the GTS DCT coding, seems to go hand-in-hand with performance tunes.

GTS DCT Flash is free and you're able to do it via BM3 too

Originally Posted by rhk118

8M93 is US spec M3 ZCP. 3S73 is US spec M3 CS. I believe.

Will try the FDL of the VDC first to maintain everything else at ZCP coding, and if that doesn't work then VO code it and hopefully not have to fire up ISTA to calibrate.

Let me know how it goes cookiesowns

[Mr. Hankey]

Originally Posted by FSociety

Let me know how it goes cookiesowns

It Worked fine: Used the CAFD comparison tool and found that you can FDL code "Fahrzeugtyp" in the VDC1 module to a value of "F85_comp" - at least thats the equivalent setting in there that equals chassis F80 and Typeschlussel 3S73 (US spec M3 CS)

Drove for about 20 miles on rough roads. With suspension in Sport and Sport+ it feels just a tad stiffer than normal ZCP but less bouncy. Comfort mode actually feels softer to me than ZCP.

Also tested the EPS between F82GTS and F87CS and it seem that the F87CS steering settings feel to be just in-between the ZCP and the GTS. GTS is very soft and easy to turn for each setting, F87CS steering felt a bit more linear and just barely lighter than stock ZCP. "Centerdness" of the steering did not seem to change for me, which I figure was sorted out by the '18 ZCP anyway. I actually prefer stiffer steering (thats what she said) so left it on F87CS. This may actually be the same as the F080 setting and I may be feeling placebo but the F82GTS setting was CLEARLY different, too soft for my taste.

So now I have a frankenstein car - CS steering, CS EDC, GTS diff, GTS DSC. Sounds like the ICM module ties all these things together and lets them talk. I did nothing to ICM...that is still set as a US ZCP M3. Not sure if coding that would help? And do I code it as a GTS, or as a CS?

Appreciate any input. Everything is subtly better (maybe just different)....didn't get on it to test DSC. Couldn't break the rears with quick starts in MDM, which is how the car acts normally....no not dropping the clutch!

[cookiesowns]

Originally Posted by rhk118

It Worked fine: Used the CAFD comparison tool and found that you can FDL code "Fahrzeugtyp" in the VDC1 module to a value of "F85_comp" - at least thats the equivalent setting in there that equals chassis F80 and Typeschlussel 3S73 (US spec M3 CS)

Drove for about 20 miles on rough roads. With suspension in Sport and Sport+ it feels just a tad stiffer than normal ZCP but less bouncy. Comfort mode actually feels softer to me than ZCP.

Also tested the EPS between F82GTS and F87CS and it seem that the F87CS steering settings feel to be just in-between the ZCP and the GTS. GTS is very soft and easy to turn for each setting, F87CS steering felt a bit more linear and just barely lighter than stock ZCP. "Centerdness" of the steering did not seem to change for me, which I figure was sorted out by the '18 ZCP anyway. I actually prefer stiffer steering (thats what she said) so left it on F87CS. This may actually be the same as the F080 setting and I may be feeling placebo but the F82GTS setting was CLEARLY different, too soft for my taste.

So now I have a frankenstein car - CS steering, CS EDC, GTS diff, GTS DSC. Sounds like the ICM module ties all these things together and lets them talk. I did nothing to ICM...that is still set as a US ZCP M3. Not sure if coding that would help? And do I code it as a GTS, or as a CS?

Appreciate any input. Everything is subtly better (maybe just different)....didn't get on it to test DSC. Couldn't break the rears with quick starts in MDM, which is how the car acts normally....no not dropping the clutch!

Leave ICM the same. GTS doesn't have EDC.. coding GTS could cause some interesting behavior on the ICM.

[Mr. Hankey]

Originally Posted by cookiesowns

Leave ICM the same. GTS doesn't have EDC.. coding GTS could cause some interesting behavior on the ICM.

Excellent point. Didn't the M4 GTS come with PSS 2's just like the M3 CS? I guess there probably isn't much difference in the GHAS or DSC settings between the two either...Will keep it coded as is for now.

[cookiesowns]

Originally Posted by rhk118

Excellent point. Didn't the M4 GTS come with PSS 2's just like the M3 CS? I guess there probably isn't much difference in the GHAS or DSC settings between the two either...Will keep it coded as is for now.

I personally haven't coded M3 CS GHAS / DSC.

On my M2 I left GHAS the same as stock, while DSC as M4 GTS. I might give coding M3 CS GHAS a shot but I'll probably bet that my butt dyno won't feel it without doing stupid shit on the street.

[Mr. Hankey]

Originally Posted by cookiesowns

I personally haven't coded M3 CS GHAS / DSC.

On my M2 I left GHAS the same as stock, while DSC as M4 GTS. I might give coding M3 CS GHAS a shot but I'll probably bet that my butt dyno won't feel it without doing stupid shit on the street.

Good point, thanks. I notice this lets me slip more than stock ZCP a bit but doesn't seem outrageously uncontrolled. Nothing compared to the 2015 M3 with euro MDM which would get nearly completely sideways.

Going to have to be a rainy day empty parking lot test with this.

[Bubu88]

It‘s a bit OT but since a lot of guys here are talking about GTS software: Am I right that getting GTS DCT is only possible via flashing? Or is there also an Option with FDL or VO Coding that works? Because I‘m still afraid of flashing but FDL and VO coding is no problem.

[cookiesowns]

Originally Posted by rhk118

Good point, thanks. I notice this lets me slip more than stock ZCP a bit but doesn't seem outrageously uncontrolled. Nothing compared to the 2015 M3 with euro MDM which would get nearly completely sideways.

Going to have to be a rainy day empty parking lot test with this.

Oh. M4 GTS flash with Euro MDM will let me get completely sideways in my car in the right conditions.

[Remonster]

Originally Posted by rhk118

It Worked fine: Used the CAFD comparison tool and found that you can FDL code "Fahrzeugtyp" in the VDC1 module to a value of "F85_comp" - at least thats the equivalent setting in there that equals chassis F80 and Typeschlussel 3S73 (US spec M3 CS)

Drove for about 20 miles on rough roads. With suspension in Sport and Sport+ it feels just a tad stiffer than normal ZCP but less bouncy. Comfort mode actually feels softer to me than ZCP.

Also tested the EPS between F82GTS and F87CS and it seem that the F87CS steering settings feel to be just in-between the ZCP and the GTS. GTS is very soft and easy to turn for each setting, F87CS steering felt a bit more linear and just barely lighter than stock ZCP. "Centerdness" of the steering did not seem to change for me, which I figure was sorted out by the '18 ZCP anyway. I actually prefer stiffer steering (thats what she said) so left it on F87CS. This may actually be the same as the F080 setting and I may be feeling placebo but the F82GTS setting was CLEARLY different, too soft for my taste.

So now I have a frankenstein car - CS steering, CS EDC, GTS diff, GTS DSC. Sounds like the ICM module ties all these things together and lets them talk. I did nothing to ICM...that is still set as a US ZCP M3. Not sure if coding that would help? And do I code it as a GTS, or as a CS?

Appreciate any input. Everything is subtly better (maybe just different)....didn't get on it to test DSC. Couldn't break the rears with quick starts in MDM, which is how the car acts normally....no not dropping the clutch!

Have you had more of a chance to try out the CS EDC programming? Do you still feel Comfort is more comfortable than the normal ZCP programming and Sport & Sport + are more controlled & less bouncy? If so, I'll ask Alex@Alpine to code that in for me so I can try.

[Racer20]

Originally Posted by Remonster

Have you had more of a chance to try out the CS EDC programming? Do you still feel Comfort is more comfortable than the normal ZCP programming and Sport & Sport + are more controlled & less bouncy? If so, I'll ask Alex@Alpine to code that in for me so I can try.

CS EDC is very good.

[Racer20]

Has anyone been able to code the CS EPS? I tried VO coding with the CS typecode and also looked at the CAFD file for the F85Comp FDL, but there was none.

Edit: just saw the above post talking about F87 CS. That's the M2 . . . has anyone been able to confirm what the differences are between the base M3 and M3CS as far as EPS coding?

[FSociety]

Originally Posted by cookiesowns

Oh. M4 GTS flash with Euro MDM will let me get completely sideways in my car in the right conditions.

What new goodies can we code in my car ?

[Remonster]

Originally Posted by Racer20

CS EDC is very good.

Is it really more comfortable than normal ZCP when in Comfort?

[FSociety]

Originally Posted by Remonster

Is it really more comfortable than normal ZCP when in Comfort?

I really think so whatever cookiesowns did on my car its infact way more comfty than what I had. I might just be on latest iStep EDC and not actual CS EDC yet have to confirm later.

[Remonster]

Originally Posted by FSociety

I really think so whatever cookiesowns did on my car its infact way more comfty than what I had. I might just be on latest iStep EDC and not actual CS EDC yet have to confirm later.

Let me know if you can, if I can make Comfort smoother and also make Sport and Sport+ more planted then that sounds like a win-win combo to me so I would definitely be interested.

[Racer20]

Originally Posted by Remonster

Is it really more comfortable than normal ZCP when in Comfort?

The CS has higher quality damping. It may be a bit firmer, but there is less impact shock and noise and the body motion is reduced most of the time. There are some specific road surfaces where the body follows the road a bit more abruptly in comfort, but it's worth the trade off. It feels more like driving a real sports car.

Honestly, coding the EDC is easy enough that you could just put it back to ZCP settings if you don't like it or need a bit more relaxed ride for a long trip or something.

[Almaretto]

Originally Posted by Bubu88

It‘s a bit OT but since a lot of guys here are talking about GTS software: Am I right that getting GTS DCT is only possible via flashing? Or is there also an Option with FDL or VO Coding that works? Because I‘m still afraid of flashing but FDL and VO coding is no problem.

This thread is about VO or FDL coding.

Only ECU that is flash programmed with software is EGS.

[Mr. Hankey]

[QUOTE=Remonster;23719550]

Originally Posted by rhk118

Have you had more of a chance to try out the CS EDC programming? Do you still feel Comfort is more comfortable than the normal ZCP programming and Sport & Sport + are more controlled & less bouncy? If so, I'll ask Alex@Alpine to code that in for me so I can try.

Actually I now think comfort mode is a tad stiffer than stock ZCP but definitely improved in handling bumps in both compression and rebound than ZCP, just better controlled, noticeably so. CS EDC is worth the programming, definite improvement from ZCP in my book. All modes feel more sporty. Hard to explain, definitely stiffer but less jarring in hitting bigger bumps or transitions like over bridge seams. Not as bouncy. ZCP itself though is way better than non ZCP suspension in helping "bouncines" though, this just tweaks it and makes it better.

Also now switched from CS steering to GTS steering. Think I like the GTS steering feel just a bit better than CS. CS seems more sensitive to inputs and definitely more linear as some have described, but GTS steering in sport mode just feels like the right weight to me. Think this will be a very subjective thing to most anyway.

GTS Diff and DSC I am liking. It does this thing where it feels like the rear is sliding when it is in fact tracking right through the turn. At same speeds I feel like US ZCP MDM would have intervened. Again haven't been able to throw it around in a parking lot yet, and it may not be significantly different, but I suspect it is.