Discussion about issues encountered whilst converting to M3 Flash and GWS

[dyezak]

Down to one. I think @jyamona might be able to assist here. This is actually a DME fault that is being triggered because it isn't recieving something it expects from the DSC (I've figured that much out). I think TunerPro allows us to disable these types of faults individually, so it might be easy?.?.

To get rid of the DSC No Info error I changed the DSC MSA (auto stop start) to not active.

 

[Bimaxtremeretro]

Down to one. I think @jyamona might be able to assist here. This is actually a DME fault that is being triggered because it isn't recieving something it expects from the DSC (I've figured that much out). I think TunerPro allows us to disable these types of faults individually, so it might be easy?.?.

To get rid of the DSC No Info error I changed the DSC MSA (auto stop start) to not active.

View attachment 9984

Derik, this is more than likely an adaptation problem from coding the system was not expected. If you reset all box and engine adaptations it might fix it.

Otherwise, downgrade you 544 cruise to to 540 and re encode sometimes also does the trick. Otherwise get rid of it all together and do the same thing including steering angle sensor. If it works, put it back to 544 and it will work fine, if active cruise then 541.

If not you will be able to fix the issues in netodat by inspecting and changing the checksum. You should also be able to verify this on tool32. The problem is either in the kombi or dsc.

I'm tool 32 look for something like
cc schreiben reset and something else like device reset sg or similar. Make sure tempomat setz is set to wert 02.

The 335 lci wheel speed sensor are more advance than the m3 ones so you might not need the m3 ones

It's straight forward to suppress dtc codes wothin the dme however, this will simply hide the code , not the fault. Cruise either won't work at all or will work in a manner it's not supposed to.

Cheers

 

[aus335iguy]

Fantastic progress being made here guys. Im struggling to keep up with exactly what the changes were though. I know theres been a few

 

[aus335iguy]

So ive read back and it seems all of the parts are in and coded and we still have the problem.

 

[dyezak]

I've only posted up about the DSC. There's more. I've just finished KOMBI retrofits.

 

[dyezak]

Then there's more variables after KOMBI that I'm going to try.

 

[Bimaxtremeretro]

Guys it's worth noting that coding the cluster to your car is very difficult until the vin in the cluster matches your car or specifically cas module. It can be tricked into being coded but it not worth doing as it's a pain in the arse. If you have the m3 cas, plug it in, code the cluster to suit your 335 and put your normal cas back in. Or remove the chip from the kombi and change the vin using something like the r270 or similar. Once you do a few it's seriously a 10 min job and there is info out there on it I'm sure. Basically change the vin on the chip to yours, set km to all f's and when plugged back in will go back to where it needs to be. This way you want have a tamper dot and can code it whenever you want without pissing about

 

[dyezak]

Something like this

 

[Bimaxtremeretro]

Something like this

View attachment 10044

The board connectors are ok but you will not always be able to edit the chip in circuit and it needs to come off. A little bit of heat with tweasers does the job nicely.

 

[dyezak]

KOMBI, DSC, GWS, and ancillary modules all in with zero issues and errors. I now get new interesting behavior during shifting in 3-4, and 4-5. If I am WOT I get a nice firm shift as would be expected. The shift is firmer the higher you get in the RPM range. I've got some video's of the 3-4 shift and I'm breaking tires loose (DSC light) at 80mph. I *need* to rewire the DSC button though because the 335 button goes through the JBB and won't work on the M3 DSC. So some of the other odd behavior may be from torque reduction requests due to DSC intervention (because I can't turn it off without the button). I'm not going to make any final calls until the button functions.

 

[dyezak]

The board connectors are ok but you will not always be able to edit the chip in circuit and it needs to come off. A little bit of heat with tweasers does the job nicely.

It worked for me, the new firmware is released for the R270+ that allows full on-board reflashing. The VIN is no problem but the ODO can be problematic. They have a function built into the app to force it through. Worked flawlessly for me.

 

[dyezak]

Oh, and I flashed over to a standard M3 flash on the transmission too. Exact same behavior as the GTS flash. So for anyone wondering the flash wasn't the problem.

 

[Bimaxtremeretro]

KOMBI, DSC, GWS, and ancillary modules all in with zero issues and errors. I now get new interesting behavior during shifting in 3-4, and 4-5. If I am WOT I get a nice firm shift as would be expected. The shift is firmer the higher you get in the RPM range. I've got some video's of the 3-4 shift and I'm breaking tires loose (DSC light) at 80mph. I *need* to rewire the DSC button though because the 335 button goes through the JBB and won't work on the M3 DSC. So some of the other odd behavior may be from torque reduction requests due to DSC intervention (because I can't turn it off without the button). I'm not going to make any final calls until the button functions.

View attachment 10045

You don't actually need the button.

As I said in an earlier post you can just run a single wire to your existing button on the center console between the ac vents. I think it's pin 41 on the dsc.
Good stuff mate.
Did you do what i said earlier for the adaptationd and other resets ? And also make sure you test cruise.

 

[Bimaxtremeretro]

It worked for me, the new firmware is released for the R270+ that allows full on-board reflashing. The VIN is no problem but the ODO can be problematic. They have a function built into the app to force it through. Worked flawlessly for me.

With this it simple depends what's chip the manufacturer has used in the board. In circuit programming is just not possible on some of them, other times those clips are not the best. When you have done a few the chip literally comes on and off in 30 seconds. Yes the odometer can be a problem when people try changing it, that's why it's best to set it to zero or all fffffff's and when its coded for the first time it will take the km reading from the cas unit automatically.

 

[dyezak]

You don't actually need the button.

As I said in an earlier post you can just run a single wire to your existing button on the center console between the ac vents. I think it's pin 41 on the dsc.
Good stuff mate.
Did you do what i said earlier for the adaptationd and other resets ? And also make sure you test cruise.

Yes sir, reset adaptations. I haven't tested cruise yet. But I do want to wire in the correct button I think you can appreciate the desire to do it "right"

 

[Bimaxtremeretro]

You don't actually need the button.

As I said in an earlier post you can just run a single wire to your existing button on the center console between the ac vents. I think it's pin 41 on the dsc.
Good stuff mate.
Did you do what i said earlier for the adaptationd and other resets ? And also make sure you test cruise.

Sorry also if you get the m3 center console button, you will end up having to wire more than just the single pin as well, illumination etc.

 

[aus335iguy]

So in summary the KOMBI needs to be in and the shift issue might be sorted but we dont know if its the KOMBI Or the DSC or both that do it.

 

[Bimaxtremeretro]

Yes sir, reset adaptations. I haven't tested cruise yet. But I do want to wire in the correct button I think you can appreciate the desire to do it "right"

I'm with you here man. For testing sake just run a quick wire through the window and test it out.

Ok, let's do it properly, we can even convert the power button to sport for msd81 throttle if you like. and you will need to get the m3 air went putting as it has single push tyre pressure.

 

[dyezak]

So in summary the KOMBI needs to be in and the shift issue might be sorted but we dont know if its the KOMBI Or the DSC or both that do it.

The DSC alone didn't do shit. It was a lot of work, but alone, it was just kind of useless. Otherwise you are correct. And also remember, I'm breaking the tires loose on the 4th gear shift because I have the factory 2.56 open diff in...and the M3 DSC doesn't have e-diff features. So I am one wheeling it.

 

[dyezak]

I'm with you here man. For testing sake just run a quick wire through the window and test it out.

Ok, let's do it properly, we can even convert the power button to sport for msd81 throttle if you like. and you will need to get the m3 air went putting as it has single push tyre pressure.

I'm with you there! I've already pulled the wiring harness apart for the center console buttons and found DME pin 13 for the power button and DSC pin 41 for the traction control button. I've also got the M3 single push tyre pressure reset button in the dash already I'll just have to take the wiring on later as I spent a day in the garage and need to take the family out for family time tomorrow.