Last edited:
Discussion about issues encountered whilst converting to M3 Flash and GWS
- Thread starter aus335iguy
- Start date
Just got my DSC module in the mail today, currently reprogramming it to the car now!
I have ISTA-D working but ISTA-P still won't connect.
All my other software is current so I should be ok once I can get going again.
All my other software is current so I should be ok once I can get going again.
Welcome Tom, looking forward to your insights!
Nice, you guys are making me want to install my DSC and KOMBI now.
Did you blank your VIN and Milage yourself?
This is exciting. I've got an eye on a few M3 parts myself, getting that E93 trim in good shape is the trick so far...
So I’m hoping that @Bimaxtremeretro can explain further himself but essentially he did an MDrive retrofit on an automatic 335i and it all went off without a hitch. This has led him to believe that the DSC isn’t causing our issue. He’s going to do something I think is amazing and that is he’s going to take an M3 DCT and take out the relevant modules one by one until he can replicate the bad shifts. Then he’s going to share the results. There’s no money in this for Brintech and a lot of lost time so I think that it’s a pretty cool thing to do. What a champion!
I wasn't able to get it all done last night. Got it flashed to my car with my Vin and that's as far as I have made it . Hopefully finish up the rest of the coding/programming on the module tonight.
Hey Gents,
Happy to help with anything I can as so many other do, it's nice to give back.
@ derick, I was hoping to catch you before you ordered that dsc unit, hence i thought it's easier to call...
Since i spoke with derick on sunday ive been thinking about the issue and wondering what could be the route cause and how i can help track it down. As were a commercial business sometimes we just dont the time to approach every problem the way I would like and it's often much quicker to rule things out and move on. I'm also extra lucky as I have access to the parts to play with so it always makes things a while lot easier, then throw in the sickness we all have ...
Anyhow it does bother me that the one and only complete vehicle I converted ran as intended from day dot, yet you guys are experiencing these issues. I've not read everything that's bone but figure it's best I share what I've done and we put it all together and kick on from there.
The 3 ser was a uk import (euro spec) msd81 after 10/08 or around n54. I don't remember every detail unfortunately but il do my best. In addition to the basic wiring which you guys already know, the m3 dsc wants pads sensors on both front and I ran the center console switch directly inthink p41dsc to 6. Im sure the the stock switch will also work and just unpin from jbe and disable in ncs. Besides that, the m3 szl + wheel sensors + yaw sensor usually under passenger seat which has a slightly different plug but is a straightn forward swap. Almost forgot the m3 cluster.
The trick/only way i MDM mode is to either use the a 1m zb - personally i have a habbit of always going with the earliest I have, in this case I use 7628006 , ur92 . You can also join bins together which is more involved to a degree and what u had to do with acc dsc since the m3 unit is dsc only., however i doubt anyone is to interested in that. Method a is the better. There is an issue with powerclass which needs to be taken into account and unfortunatly that's not my work and these kind of topics are a little sensitive so it's not something I can step by step here. Having said that i doubt it's the biggest secret and in sure someone on here can share >---1km0s of not already. For custom tunes etc the path would be the better.
With the steering sensor and valves i found sometimes both fail repeatedly and occasionally takes 5 or 6 goes at it and eventually it works, odd indeed. Before that encode everything or at least the dsc, usually i have a bad habit of working through each problem individually, I used to document everything but each cat has just become too different I takes longer to read through notes and to try a dozen fixes. With the encoding there is nothing specific I remember but really common sense applies, you guys will be all over it. Defualt encoding with trigger trans faults etc but it all have a 100% work through. Of memory the cluster has "motorsport" wert 02 will fault at 0xe1 for 6hp acc, dct is fine. M drive dtc button around 0x1d9 if anyone is interested. All the encoding is straight forward and a good amount of trial and error. Use pm92 in ncs to access the dsc, just a matter of habit, and ur92 for comparisons sake. I will get you guys a full 1m of all stock modules if anyone wants it. Anyway that's the basics, sorry guys i do feel like I've missed a few things but it's been a really taxing few days and I'm writing this on my phone hence the poor quality.
After out diacussion I had the opportunity yesterday to tinker about with an mid 07, definitely pre 09/07 335 n54 6hp. Basically installed an m3 dsc system from an m3 less mdm and running msd80, to my astonishment it works perfect and fault free with the msd80 and 6hp tcu, this should absolutely not be the case. Even the damn mdm szl will marry to the dsc on that integration level. This leads me to believe the dsc, unless with acc is not the issue here. I hope im wrong.
I intend to try and replicate the exact issue being ecperience on a m3 withiut the next week or so and then I can come back to you guys with whatever I find through elimination. Once I start fitting suspect 135/335 parts we should get to the bottom of it quickly. Worst case we will be burying our heads in the bins for some time, I do have some quick roundabout techniques as well.
Sorry if ive missed anything gents, literally struggling
Cheers
Happy to help with anything I can as so many other do, it's nice to give back.
@ derick, I was hoping to catch you before you ordered that dsc unit, hence i thought it's easier to call...
Since i spoke with derick on sunday ive been thinking about the issue and wondering what could be the route cause and how i can help track it down. As were a commercial business sometimes we just dont the time to approach every problem the way I would like and it's often much quicker to rule things out and move on. I'm also extra lucky as I have access to the parts to play with so it always makes things a while lot easier, then throw in the sickness we all have ...
Anyhow it does bother me that the one and only complete vehicle I converted ran as intended from day dot, yet you guys are experiencing these issues. I've not read everything that's bone but figure it's best I share what I've done and we put it all together and kick on from there.
The 3 ser was a uk import (euro spec) msd81 after 10/08 or around n54. I don't remember every detail unfortunately but il do my best. In addition to the basic wiring which you guys already know, the m3 dsc wants pads sensors on both front and I ran the center console switch directly inthink p41dsc to 6. Im sure the the stock switch will also work and just unpin from jbe and disable in ncs. Besides that, the m3 szl + wheel sensors + yaw sensor usually under passenger seat which has a slightly different plug but is a straightn forward swap. Almost forgot the m3 cluster.
The trick/only way i MDM mode is to either use the a 1m zb - personally i have a habbit of always going with the earliest I have, in this case I use 7628006 , ur92 . You can also join bins together which is more involved to a degree and what u had to do with acc dsc since the m3 unit is dsc only., however i doubt anyone is to interested in that. Method a is the better. There is an issue with powerclass which needs to be taken into account and unfortunatly that's not my work and these kind of topics are a little sensitive so it's not something I can step by step here. Having said that i doubt it's the biggest secret and in sure someone on here can share >---1km0s of not already. For custom tunes etc the path would be the better.
With the steering sensor and valves i found sometimes both fail repeatedly and occasionally takes 5 or 6 goes at it and eventually it works, odd indeed. Before that encode everything or at least the dsc, usually i have a bad habit of working through each problem individually, I used to document everything but each cat has just become too different I takes longer to read through notes and to try a dozen fixes. With the encoding there is nothing specific I remember but really common sense applies, you guys will be all over it. Defualt encoding with trigger trans faults etc but it all have a 100% work through. Of memory the cluster has "motorsport" wert 02 will fault at 0xe1 for 6hp acc, dct is fine. M drive dtc button around 0x1d9 if anyone is interested. All the encoding is straight forward and a good amount of trial and error. Use pm92 in ncs to access the dsc, just a matter of habit, and ur92 for comparisons sake. I will get you guys a full 1m of all stock modules if anyone wants it. Anyway that's the basics, sorry guys i do feel like I've missed a few things but it's been a really taxing few days and I'm writing this on my phone hence the poor quality.
After out diacussion I had the opportunity yesterday to tinker about with an mid 07, definitely pre 09/07 335 n54 6hp. Basically installed an m3 dsc system from an m3 less mdm and running msd80, to my astonishment it works perfect and fault free with the msd80 and 6hp tcu, this should absolutely not be the case. Even the damn mdm szl will marry to the dsc on that integration level. This leads me to believe the dsc, unless with acc is not the issue here. I hope im wrong.
I intend to try and replicate the exact issue being ecperience on a m3 withiut the next week or so and then I can come back to you guys with whatever I find through elimination. Once I start fitting suspect 135/335 parts we should get to the bottom of it quickly. Worst case we will be burying our heads in the bins for some time, I do have some quick roundabout techniques as well.
Sorry if ive missed anything gents, literally struggling
Cheers
And the other thing is, someone really needs to try stock m3 tcu zb, not the gts. Just to rule the gts flash out all together. Ideally both with and without the m3 dsc system. Given it functions perfectly with the 6hp....
I don't have non m3 dct car right now to try on, but il go from the other angle. It would be good to rule it out for rpm and deal with LC which no doubt is an issue regarding shift stalk limits etc.
I don't have non m3 dct car right now to try on, but il go from the other angle. It would be good to rule it out for rpm and deal with LC which no doubt is an issue regarding shift stalk limits etc.
That's a lot to take in at once. I read through it but I think what you're saying is that you did the following hardware:
M3 GWS (Shift assembly)
M3 Center Console DSC Switch wiring to JBB
M3 DSC (ABS Unit)
M3 Pad Sensors
M3 Wheel speed sensors
M3 SZL (clockspring)
M3 YAW Unit (if you are a 335is it is the same unit already)
M3 KOMBI (cluster)
The reason you're hesitant to believe the M3 DSC is our root cause of the shift issues is because you installed an M3 DSC and an M3 SZL on a pre 2009 335i and successfully enabled MDM mode even with the ZH6HP transmission still in the car.
I'm not a coding expert, so I'll need to re-read the coding components slower to wrap my head around them better.
M3 GWS (Shift assembly)
M3 Center Console DSC Switch wiring to JBB
M3 DSC (ABS Unit)
M3 Pad Sensors
M3 Wheel speed sensors
M3 SZL (clockspring)
M3 YAW Unit (if you are a 335is it is the same unit already)
M3 KOMBI (cluster)
The reason you're hesitant to believe the M3 DSC is our root cause of the shift issues is because you installed an M3 DSC and an M3 SZL on a pre 2009 335i and successfully enabled MDM mode even with the ZH6HP transmission still in the car.
I'm not a coding expert, so I'll need to re-read the coding components slower to wrap my head around them better.
Exactly right. And what's worse is that the m3 dsc works error free with and without szl on the 6hp with msd80. For mdm, since the mss65 isn't present, using either the 1m zb or merging the bins into msd81, mdm works exactly as it should.
If you run the m3 dsc, the switch wire goes from the dsc unit (pin 41 to pin 6 m3 cent console harness) to either the m3 center console which is what I did but I'm sure you can use the existing switch also but needs to be wired direct to dsc unit, not to the jbe like everything else. Then in the jbe, using ncs you can switch off dsc function since it wired direct to dsc.
Last edited:
Similar threads
