speed limiter removal attempt

[///M-Furby]

hey all. tomorrow i head out to do ED. since i will have the car within ten hours, i will take my very naive skills and attempt to remove the limiter.

i will test it out, and if it works (or not) i will post here to get your recommendations.

i will attempt to modify vmax

[M.a.r.k.u.s]

Originally Posted by ///M-Furby

hey all. tomorrow i head out to do ED. since i will have the car within ten hours, i will take my very naive skills and attempt to remove the limiter.

i will test it out, and if it works (or not) i will post here to get your recommendations.

i will attempt to modify vmax

Someone has attempted it by modifying vmax before and it didn't work. What hasn't been tried on the other hand (at least that I could find) is modifying vmax to 327 and the car class from TL (Top Leistungsklasse) to SL (Super Top Leistungsklasse). You can change the vehicle class in the same sub-menu as the vmax. I'd give that a shot.

Looking forward to the results!

[///M-Furby]

if you can help spell it out for me, what should i search for? i know to lookup vmax. i will try the top allowable setting and see what happens. then i will try with this new code. whats it supposed to allow?

[M3ZING]

Some tuning company in dubai based in germany tuned the M4 to 585HP and tested the car without a limiter and got 337 KM.

[M.a.r.k.u.s]

Originally Posted by ///M-Furby

if you can help spell it out for me, what should i search for? i know to lookup vmax. i will try the top allowable setting and see what happens. then i will try with this new code. whats it supposed to allow?

Leistungsklasse stands for Performance Class and the M3/M4 has it set to the second highest (Top Leistungsklasse) rather than the highest.

A friend of mine was gracious enough to let me play around with the coding on his F80 (I wanted to make sure I know what I'm doing before picking up my car and going at it blind) and I was able to find the section where I could change the Performance Class. I do remember that it was in the same sub-menu as VMAX but I don't remember what it was called specifically. I'm from Germany so I can read it all, which made it easy.

If someone has a screenshot of the menu the VMAX code is in, I could find it.

[///M-Furby]

i grabbed this on the forum. does it help?

[M.a.r.k.u.s]

Originally Posted by ///M-Furby

i grabbed this on the forum. does it help?

It does. It should be in "Varianten-Konfig" if I remember right.

[jwzimm]

Originally Posted by M.a.r.k.u.s

Leistungsklasse stands for Performance Class and the M3/M4 has it set to the second highest (Top Leistungsklasse) rather than the highest.

A friend of mine was gracious enough to let me play around with the coding on his F80 (I wanted to make sure I know what I'm doing before picking up my car and going at it blind) and I was able to find the section where I could change the Performance Class. I do remember that it was in the same sub-menu as VMAX but I don't remember what it was called specifically. I'm from Germany so I can read it all, which made it easy.

If someone has a screenshot of the menu the VMAX code is in, I could find it.

You are most welcome. Don't forget to dig around and see if you can figure out about the exhaust valve coding options as well as if we can change the default M-drive settings.

Have fun ripping down the autobahn!!

[M.a.r.k.u.s]

Originally Posted by jwzimm

You are most welcome. Don't forget to dig around and see if you can figure out about the exhaust valve coding options as well as if we can change the default M-drive settings.

Have fun ripping down the autobahn!!

I most definitely will!

[///M-Furby]

Hey guys

so I'm in germany, and tried to do the coding. Followed the steps to:
Change VMAX to FF
Change TL (Top Leistungsklasse) to SL (Super Top Leistungsklasse)

I get the codes, turn the car off, set the configuration, and apply. I get the following errors (attached).

I just did the long haul from Munich to Nurburgring, and will be doing an all day training tomorrow. So any suggestions would help. I'll make the changes, turn the car off, and then re-read when it's on. Hopefully it will work.

FYI, to be honest, hitting 155 is scary as all heck, so other than to confirm if this works (meaning passing the speedometer 160, which is what i hit) I ain't going to see what max is

[M.a.r.k.u.s]

Originally Posted by ///M-Furby

Hey guys

so I'm in germany, and tried to do the coding. Followed the steps to:
Change VMAX to FF
Change TL (Top Leistungsklasse) to SL (Super Top Leistungsklasse)

I get the codes, turn the car off, set the configuration, and apply. I get the following errors (attached).

I just did the long haul from Munich to Nurburgring, and will be doing an all day training tomorrow. So any suggestions would help. I'll make the changes, turn the car off, and then re-read when it's on. Hopefully it will work.

FYI, to be honest, hitting 155 is scary as all heck, so other than to confirm if this works (meaning passing the speedometer 160, which is what i hit) I ain't going to see what max is

If I'm understanding you correctly, you set the codes and then turn the car off before actually writing to it? I'm assuming that's the issue. Either have your car off (and in the on position) while you code, which will be fine for that short of a time, or leave the car running as long as you are not coding the DME.

As far as the speed, you'd have to get to 170 or so to test it. Governed f8x's are still hitting 163 mph.

[///M-Furby]

i will try after dinner. i thought it was in the ON position, but maybe not.

i will leave it on... finish. all the steps (3 mins). turn car off, put it to on position, and then hit code fdl

[M.a.r.k.u.s]

Originally Posted by ///M-Furby

i will try after dinner. i thought it was in the ON position, but maybe not.

i will leave it on... finish. all the steps (3 mins). turn car off, put it to on position, and then hit code fdl

I'm not sure if turning it off while being connected to the car interrupts the connection and is giving you the error. Since it's such a short procedure, just code with with the car in the on position but not running from start to finish. At least that's what I would do.

[///M-Furby]

Originally Posted by M.a.r.k.u.s

I'm not sure if turning it off while being connected to the car interrupts the connection and is giving you the error. Since it's such a short procedure, just code with with the car in the on position but not running from start to finish. At least that's what I would do.

sorry, thats what i meant. turn on, get dme codes, code it, turn engine off. then hitt start button so car is in on position and hit code fsl

[M.a.r.k.u.s]

Originally Posted by ///M-Furby

sorry, thats what i meant. turn on, get dme codes, code it, turn engine off. then hitt start button so car is in on position and hit code fsl

it still sounds like that might interrupt your connection right before you hit code fsl

[///M-Furby]

Originally Posted by M.a.r.k.u.s

it still sounds like that might interrupt your connection right before you hit code fsl

so just hit start button, so car turns off (1 push), but power is on?

[///M-Furby]

same error. car is in on mode (not engine)

[M.a.r.k.u.s]

Originally Posted by ///M-Furby

so just hit start button, so car turns off (1 push), but power is on?

no, when you hit the start button to turn the car off, it puts it into accessory mode, which could interrupt the connection. Either you have to leave the car running the entire time or you have to leave the car off but ignition on the whole time.

Keep in mind that this is just a guess of what the issue is. It's possible that you don't you don't have the psz files in the right location or they're not updated as well. Hard to say from a few thousand miles away.

[///M-Furby]

i thought you couldnt so DME coding with engine on. i will try off the entire time.

the files were gotten a couple weeks ago. the 55 version i believe

[///M-Furby]

i tried with the engine ff (start to finish) same error.

my files are in
c:\data\psdzdata

program is c:\ec-apps\esg\e-sys

[jwzimm]

I wonder if these codes are protected with an FSC. Not sure how the two interplay but it would make sense if these are the codes that get changed when you get the M Drivers Package coded.

When you say you tried it with the engine off, you mean with the ignition on but the engine not running, correct?

[///M-Furby]

Originally Posted by jwzimm

I wonder if these codes are protected with an FSC. Not sure how the two interplay but it would make sense if these are the codes that get changed when you get the M Drivers Package coded.

When you say you tried it with the engine off, you mean with the ignition on but the engine not running, correct?

I tried it with:
Engine on. Retrieved code, changed code, turned off engine (with ignition on). Attempted to program code
Ignition on, engine off. Retrieved code, changed code, and attempted to program code

I tried changing the VMAX by the drop down menu, and then just changing to FF. Then I tried changing both. I tried changing the other setting to SL (by itself and with VMAX)