Discussion about issues encountered whilst converting to M3 Flash and GWS
- Thread starter aus335iguy
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I just caught up on the SZL thread to better understand the difference between units.
https://bmw.spoolstreet.com/threads/m-drive-retrofit-on-e9x-335i-s.2956/page-2
For a moment there I was pretty sure the cartridge contained the SAS. It'd been a while since I tore apart the steering column.
https://bmw.spoolstreet.com/threads/m-drive-retrofit-on-e9x-335i-s.2956/page-2
For a moment there I was pretty sure the cartridge contained the SAS. It'd been a while since I tore apart the steering column.
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I think this is how we should write the full guide once we get to that point. We should reference http://www.newtis.info as that has all the official BMW pictures, guides, terminology, etc. I am having a dilemma if this should be in a PDF so that SpoolStreet, @Bimaxtremeretro, @aus335iguy, etc get credit and prevent the information from being stolen by other less supportive (less scrupulous) boards; or do we just put it out there in a forum post (a gigantic post) that way it's fully interactive and has embedded links, videos, etc......
There are nightmare posts out there about people replacing their clocksprings only to turn the steering wheel and rip the internal ribbon cable rendering it useless. Here are the proper steps:
1. Remove Airbag: https://www.newtis.info/tisv2/a/en/...electrical-system/61-31-switch-sensor/I0RrW2j
2. Remove Steering Wheel: https://www.newtis.info/tisv2/a/en/...electrical-system/61-31-switch-sensor/I65lyI1
3. Remove SZL: https://www.newtis.info/tisv2/a/en/...lectrical-system/61-31-switch-sensor/8IsnMzwa
4. Install SZL: (reverse step 3)
5. Install Steering Wheel: (reverse step 2)
6. Install Airbag: (reverse step 1)
7. Default Code the DSC Unit: We need instructions written in a step by step manner on how to default code the DSC Unit via the VO Modification trick. This should be sub-step(s) 7. a. through 7. z. This isn't covered in NEWTIS.
8. Steering Sensor Calibration: We need instructions written on this simple procedure for ISTA+, oddly this isn't covered in NEWTIS either.
There are nightmare posts out there about people replacing their clocksprings only to turn the steering wheel and rip the internal ribbon cable rendering it useless. Here are the proper steps:
1. Remove Airbag: https://www.newtis.info/tisv2/a/en/...electrical-system/61-31-switch-sensor/I0RrW2j
2. Remove Steering Wheel: https://www.newtis.info/tisv2/a/en/...electrical-system/61-31-switch-sensor/I65lyI1
3. Remove SZL: https://www.newtis.info/tisv2/a/en/...lectrical-system/61-31-switch-sensor/8IsnMzwa
4. Install SZL: (reverse step 3)
5. Install Steering Wheel: (reverse step 2)
6. Install Airbag: (reverse step 1)
7. Default Code the DSC Unit: We need instructions written in a step by step manner on how to default code the DSC Unit via the VO Modification trick. This should be sub-step(s) 7. a. through 7. z. This isn't covered in NEWTIS.
8. Steering Sensor Calibration: We need instructions written on this simple procedure for ISTA+, oddly this isn't covered in NEWTIS either.
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I think it’s a great idea to reference newtis. Not really fussed about credit myself all I did was copy and paste from Bills guides and you guys did the work. We can discuss it when we know we have the answers.
The guide doesn’t have anything beyond the first part of the coding and nothing of Toms input yet...
The guide doesn’t have anything beyond the first part of the coding and nothing of Toms input yet...
Just replaced my SZL, coded it, and did the adjustment procedures. No change. But I did go for a drive on an empty road and was able to WOT shift from 4th to 5th. Shifts hard. I then shifted from 3rd to 4th and 4th to 5th at about 10% throttle and lower in the rev range and got the same mushy shifts. Pissed me off.
So I started watching (shitty) M3 DCT youtube videos. The first video might make you want to throw up, but it's showing the same lazy behavior we are seeing. Also, the second video is much like the first. The third video however is much better quality and shows *exactly* the odd shift sequence we are seeing. All these videos are factory M3's.
I'm beginning to believe this is standard M3 logic. I'm wondering if we get mushy soft shifts at part throttle as part of the EKG programming's desire to not overheat the trans fluid or something. Only ramp clutch pressure up and shift hard at WOT when the car is needing it. Otherwise shift slower on purpose to lower the demand on the hydraulic pump and put less heat into the fluid.
I don't know, but one thing is for sure...none of these modules are working for addressing the issue.
So I started watching (shitty) M3 DCT youtube videos. The first video might make you want to throw up, but it's showing the same lazy behavior we are seeing. Also, the second video is much like the first. The third video however is much better quality and shows *exactly* the odd shift sequence we are seeing. All these videos are factory M3's.
I'm beginning to believe this is standard M3 logic. I'm wondering if we get mushy soft shifts at part throttle as part of the EKG programming's desire to not overheat the trans fluid or something. Only ramp clutch pressure up and shift hard at WOT when the car is needing it. Otherwise shift slower on purpose to lower the demand on the hydraulic pump and put less heat into the fluid.
I don't know, but one thing is for sure...none of these modules are working for addressing the issue.
Both of you guys are doing a great job with this. I've been on holiday all week and once I get back I'll have 5 or 6 boxes waiting on me. I'm going to attack it with the M3 drivetrain conversion done first, then do all the modules at the same time if possible. I wonder if it might be possible to attack the mushy part throttle shifts though the tune?
My shifts changed dramatically with my custom tune and that’s why i mentioned it. Pretty sure BQ does specific things with respect to reported torque and that’s what made the difference.
So I've swapped over just about everything I can think of from an M3 associated with the transmission and MDM mode. The last thing I need to do is wire in the center console button stack. The standard button wired into DSC 41 doesn't do the trick. I'm assuming that the standard button going to the JBB triggers a CAN message for the DSC to change state. The M3 button going directly to the DSC probably isn't CAN, it's probably a ground switch or a +5v switch or something (since power is required I'm betting it's +5 or +12 v).
Anyhow, off to NewTIS to study more DSC wiring diagrams to start wiring this thing up. Not sure I'll have that done today though.
Anyhow, off to NewTIS to study more DSC wiring diagrams to start wiring this thing up. Not sure I'll have that done today though.
Oh, also, my M Mode setup in the CIC is still non-functional.......going back through this thread is that what @Bimaxtremeretro is saying we need the 1m DME flash for?
If so we need to know what pieces of the 1m BIN are needed so we can get that in front of @jyamona.
If so we need to know what pieces of the 1m BIN are needed so we can get that in front of @jyamona.
This might not be solely torque reporting. The transmission might also take into consideration throttle position too.
DME torque output changes are relatively straightforward. If it's only a part-throttle problem, would need to zero in on it. Frankly, I don't know if it would need to be increased or decreased with this setup or how the TCU might respond. Might even need/want to tweak the torque request instead.
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I think we can simply watermark the photos by uploading them into the gallery and then just leave it as text with a PDF option. The laziest people will simply download the PDF, it will remain search able and a guide is barely worth anything without the photos.
Derek,
As sash pointed out to me, this will work for updating J dmes to k without power class issues.
https://www.bummerboost.com/showthread.php?70577-Anyone-have-a-PPK-BIN/page3
Did you wire p41 dsc to your regular button directly? Or to the jbbf itself?
If I remember correctly finding a wiring diagram for the center console m3 buttons is impossible. If some else can find it it would be nice.
What I do remember off memory is as follows:
Pin 6 goes to dsc pin 41
Xxx - one pin goes to illumination
Xxx - another goes to pin 12 dme sport button
Xxx - 2 pins go to rear of jbbf for edc
Xxx - 1 ground pin
Definitely a few missing, I just can't remember what they were, I just remember not being able to get a diagram at all.
As sash pointed out to me, this will work for updating J dmes to k without power class issues.
https://www.bummerboost.com/showthread.php?70577-Anyone-have-a-PPK-BIN/page3
Did you wire p41 dsc to your regular button directly? Or to the jbbf itself?
If I remember correctly finding a wiring diagram for the center console m3 buttons is impossible. If some else can find it it would be nice.
What I do remember off memory is as follows:
Pin 6 goes to dsc pin 41
Xxx - one pin goes to illumination
Xxx - another goes to pin 12 dme sport button
Xxx - 2 pins go to rear of jbbf for edc
Xxx - 1 ground pin
Definitely a few missing, I just can't remember what they were, I just remember not being able to get a diagram at all.
Also derak, have you completely reset the dme variant ? Under the inpa it's something like f8 then f8/f9 or similar, just called dme variants. After that done put into sleep mode in inpa or just wait for the illumination on the stop start to turn off.
Also if you car is shifting the that 3rd video, there is absolutely nothing wrong with it.
On a side note: did you know the m3 manual uses the stock engine oil cooler and location from the 335 for its gearbox cooler, pretty damn cool. Same as the m5. I don't know of another factory car that has a gearbox cooler for 6mt at all. I'm sure there out there but certainly rare
Also if you car is shifting the that 3rd video, there is absolutely nothing wrong with it.
On a side note: did you know the m3 manual uses the stock engine oil cooler and location from the 335 for its gearbox cooler, pretty damn cool. Same as the m5. I don't know of another factory car that has a gearbox cooler for 6mt at all. I'm sure there out there but certainly rare
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NewTIS doesn't have this. I have to go to the modules and see the inputs to the modules come from Pin #(xxx) on the center console switch. This is what I found:
Pin 6 goes to DSC #41
Pin 1 goes to GROUND
Pin 4 goes to DME #12 (both on MSS60 for the M3 and MSD81 for M1)
I don't have EDC so that's not required, I don't have the EDC button either
I'm missing the + voltage for illumination and to complete the circuit
I was wanting to wire up the DSC before I did a video. But I"ll probably do a vid tonight either way.
This is frustrating. I'm finding flaws in NewTIS. Example with the DSC wiring:
https://www.newtis.info/tisv2/a/en/...ension/traction-control-system/switch/xBcqrQM
In that link ^^^ the M3 DSC shows that the center console DSC button is wired to pin #41
https://www.newtis.info/tisv2/a/en/e92-m3-cou/ZFCLhIu
But in this link, covering the full pinout of the M3 DSC unit #41 shows as unused.
Grumble.
https://www.newtis.info/tisv2/a/en/...ension/traction-control-system/switch/xBcqrQM
In that link ^^^ the M3 DSC shows that the center console DSC button is wired to pin #41
https://www.newtis.info/tisv2/a/en/e92-m3-cou/ZFCLhIu
But in this link, covering the full pinout of the M3 DSC unit #41 shows as unused.
Grumble.
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