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      10-22-2015, 09:14 AM   #1
te37
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Rev Matching Inconsistant

Well I think I am having issues with this "super duper rev matching assist", I have only had the car a week now and I have been driving on the defaults until this morning. So the rev match feature sometimes works and sometimes not, I do not get it. Sometimes I would have to blip the throttle when downshifting and sometimes it would do it for me. It seems like it rev matches when the clutch is in and you downshift slowly. Now fast forward to today and I set everything on sport plus (feels more like my old e46 m3) and it wasn't rev matching the whole drive to work until the couple last stops where it would rev match very aggressively, sounded nice but I either want it to work 100% of the time or not at all.

Sorry if that was all confusing as I have not had all my coffee yet.

Any way to completely disable rev match feature across the board?

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      10-22-2015, 09:20 AM   #2
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Efficient & sport throttle mappings = rev matching
Sport plus throttle mapping = no rev matching

The times that rev matching doesn't engage is when I hold the clutch in to coast and eventually downshift (e.g., coasting to a red light with the clutch in, light turns green, downshift into a lower gear = no rev match). To account for this, you can double clutch and it will reengage rev matching. Otherwise, it's been rock solid for me and works as designed.
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      10-23-2015, 08:56 AM   #3
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Doesn't do it in sport plus and doesn't do it from 2nd to first.
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      10-23-2015, 02:09 PM   #4
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Quote:
Originally Posted by CosmosMpower View Post
Doesn't do it in sport plus and doesn't do it from 2nd to first.
It is disabled in Sport+ however in sport if you are in 2nd you can downshift to first and it will rev match
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      10-23-2015, 04:38 PM   #5
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Ill have to post a video because my car rev matches in Sport+, I have sport plus in steering and throttle, sadly no EDC
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      10-23-2015, 05:26 PM   #6
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So you're saying the rev-match feature is unpredictable....sometimes functions as it's designed...sometimes it has a mind of its own?
This is one of my many videos highlighting this issue. Might be hard to see but it is in sport+ and my foot was no where near the accelerator.


Last edited by domd817; 10-23-2015 at 05:33 PM.. Reason: video addition
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      10-24-2015, 09:48 AM   #7
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Quote:
Originally Posted by domd817 View Post
So you're saying the rev-match feature is unpredictable....sometimes functions as it's designed...sometimes it has a mind of its own?
This is one of my many videos highlighting this issue. Might be hard to see but it is in sport+ and my foot was no where near the accelerator.

Mine does the exact same thing! Not sure if its a software update or something that can be fixed. Did you ever get it resolved?

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      10-24-2015, 11:06 AM   #8
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Quote:
Originally Posted by te37
Quote:
Originally Posted by domd817 View Post
So you're saying the rev-match feature is unpredictable....sometimes functions as it's designed...sometimes it has a mind of its own?
This is one of my many videos highlighting this issue. Might be hard to see but it is in sport+ and my foot was no where near the accelerator.

Mine does the exact same thing! Not sure if its a software update or something that can be fixed. Did you ever get it resolved?

Mine did this in addition to wiping all M settings out at random. Bmw has no fix for it. That's the reason I'm driving a '16. They bought the car back. It was a 7 month battle with them. I owe all credit to my dealer as they sided with me throughout the entire process. I know people say BMWNA will do anything for the customer and they ended up resolving the situation but I had to go down roads I feel could've been avoided.
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      10-24-2015, 12:33 PM   #9
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Efficient mode seems to tone down the rev matching feature. I don't think it will rev match 2nd to 1st in this mode. Sport mode seems a bit more aggressive and I think it will match 2nd to 1st.
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      10-24-2015, 01:25 PM   #10
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Quote:
Originally Posted by Racer20
Efficient mode seems to tone down the rev matching feature. I don't think it will rev match 2nd to 1st in this mode. Sport mode seems a bit more aggressive and I think it will match 2nd to 1st.
It will match 2nd to 1st in either efficient or sport.
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      10-24-2015, 01:42 PM   #11
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My recommendation. ..Don't get a manual if all you intended to do was let it rev match and do the work all the time. Just my .02.
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      10-24-2015, 04:00 PM   #12
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Quote:
Originally Posted by ra2fanatic
My recommendation. ..Don't get a manual if all you intended to do was let it rev match and do the work all the time. Just my .02.
This is a dumb comment. It's a great convenience when you're not driving hard.... especially in traffic. Any way you cut it, it's still more engaging than the dct (I respect the dct, I just prefer rowing my own gears).

OP, I've noticed mine hesitating a handful of times. Once causing me to drop the clutch, because of muscle memory, and shocking the drivetrain. I'm not sure what the deal was... guessing some kind of processing issue with the gear select sensor.
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      10-25-2015, 06:50 AM   #13
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Quote:
Originally Posted by ///MFanatic View Post
This is a dumb comment. It's a great convenience when you're not driving hard.... especially in traffic. Any way you cut it, it's still more engaging than the dct (I respect the dct, I just prefer rowing my own gears).

OP, I've noticed mine hesitating a handful of times. Once causing me to drop the clutch, because of muscle memory, and shocking the drivetrain. I'm not sure what the deal was... guessing some kind of processing issue with the gear select sensor.
It sounds like you'd be much happier with DCT.
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      10-25-2015, 07:18 AM   #14
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It's seems like it's just more than me that is experiencing the issue. It doesn't make me go to bmw to show them an issue that happens "sometimes", I love the car other than this small issue. I think I will just look into trying to code out the rev match or something so it is completely off. I have no issues with driving a manual I just want to know if I would need to throttle blip or is it gonna do it by itself, 99% of the time I'm not driving hard enough to downshift quickly to make rev matching a big deal.
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      10-25-2015, 07:32 AM   #15
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Quote:
Originally Posted by Warranty P
Quote:
Originally Posted by ///MFanatic View Post
This is a dumb comment. It's a great convenience when you're not driving hard.... especially in traffic. Any way you cut it, it's still more engaging than the dct (I respect the dct, I just prefer rowing my own gears).

OP, I've noticed mine hesitating a handful of times. Once causing me to drop the clutch, because of muscle memory, and shocking the drivetrain. I'm not sure what the deal was... guessing some kind of processing issue with the gear select sensor.
It sounds like you'd be much happier with DCT.
Impressive deductive skills
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      10-25-2015, 11:21 AM   #16
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Quote:
Originally Posted by ///MFanatic
Quote:
Originally Posted by ra2fanatic
My recommendation. ..Don't get a manual if all you intended to do was let it rev match and do the work all the time. Just my .02.
This is a dumb comment. It's a great convenience when you're not driving hard.... especially in traffic. Any way you cut it, it's still more engaging than the dct (I respect the dct, I just prefer rowing my own gears).

OP, I've noticed mine hesitating a handful of times. Once causing me to drop the clutch, because of muscle memory, and shocking the drivetrain. I'm not sure what the deal was... guessing some kind of processing issue with the gear select sensor.
Sounds lazy to me.
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      10-25-2015, 12:26 PM   #17
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Quote:
Originally Posted by ra2fanatic
Quote:
Originally Posted by ///MFanatic
Quote:
Originally Posted by ra2fanatic
My recommendation. ..Don't get a manual if all you intended to do was let it rev match and do the work all the time. Just my .02.
This is a dumb comment. It's a great convenience when you're not driving hard.... especially in traffic. Any way you cut it, it's still more engaging than the dct (I respect the dct, I just prefer rowing my own gears).

OP, I've noticed mine hesitating a handful of times. Once causing me to drop the clutch, because of muscle memory, and shocking the drivetrain. I'm not sure what the deal was... guessing some kind of processing issue with the gear select sensor.
Sounds lazy to me.
You're 100% right. Hence me saying it being a convenience at times. I don't feel the need to go balls to the wall every time I drive (this is my DD).... I still enjoy grabbing my own gears though.

These are all really helpful comments guys, keep them coming!



Edit: Also, with that reasoning, wouldn't it be lazier to have a dct?
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      10-25-2015, 06:31 PM   #18
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is it in M/T or DCT ?
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      10-25-2015, 10:19 PM   #19
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Quote:
Originally Posted by ///MFanatic View Post
You're 100% right. Hence me saying it being a convenience at times. I don't feel the need to go balls to the wall every time I drive (this is my DD).... I still enjoy grabbing my own gears though.

These are all really helpful comments guys, keep them coming!



Edit: Also, with that reasoning, wouldn't it be lazier to have a dct?
No matter how expensive the car you still get people who manage to show little to no help, other than comments that don't relate to the topic at all (just bashing about being lazy).
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      10-26-2015, 08:09 AM   #20
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Another worthwhile thread goes down the drain due to some wasteful comments. This isnt a dct vs 6mt thread. There are plenty of those to go around.

To the OP, take a look in the coding forum, there is a thread regarding coding out rev match
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      10-26-2015, 10:30 AM   #21
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Quote:
Originally Posted by te37
Quote:
Originally Posted by ///MFanatic View Post
You're 100% right. Hence me saying it being a convenience at times. I don't feel the need to go balls to the wall every time I drive (this is my DD).... I still enjoy grabbing my own gears though.

These are all really helpful comments guys, keep them coming!



Edit: Also, with that reasoning, wouldn't it be lazier to have a dct?
No matter how expensive the car you still get people who manage to show little to no help, other than comments that don't relate to the topic at all (just bashing about being lazy).
It's amazing right? Their brain dead responses added literally nothing to the conversation. They're the guy at the party with nothing to say, but damn does he love the sound of his own voice. They could at least have some decency and put some effort into being a dickhead....

Anyway, I'm going to reach out to my SA about this and let you know if I find anything out. I would imagine a software update could remedy this.
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      10-26-2015, 11:22 AM   #22
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Let me know what your dealer has to say about the issue. I'm curious if there has been any new/more information.
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