01-31-2017, 07:03 AM | #24 |
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Does the M240i have auto rev matching then? I wasn't aware, thought it was the M2 only? Cool.
Can I ask is it impossible to stall these gearboxes? If you let the revs drop so far, does the computer kick in? Does it therefore almost 'crawl' like the 8AT ZF? That might be a step/wish too far. Hmm.
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01-31-2017, 04:53 PM | #25 | |
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02-02-2017, 07:24 AM | #27 |
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It revs the engine when I push the shifter into the 1/2 gate, only if the clutch is depressed. Don't think it does anything when dropping from the 5/6 gate to the 3/4 gate. Have to check.
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02-02-2017, 08:01 AM | #28 |
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02-02-2017, 08:22 PM | #29 |
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Here's how it seems to function;
Notation N12 means shifter in neutral in the left (first and second) gate N34 means shifter in neutral in center gate N56 means shifter in neutral in right gate There are two things accomplished A. gears spun up to mesh better with less wear on the synchromesh B. engine at the right speed for the wheels so there is minimal torque applied when the clutch is engaged. Move from N56 to N45 the engine is revved to provide A. Move from N45 to 4 or 5 the engine is revved to provide B. Move from N45 to N12 the engine is revved to provide A. Move from N12 to 1 or 2 the engine is revved to provide B. There is no rev matching when moving into N56 There seems to be no rev matching when moving from N56 to 5 or 6 Correction, there is rev matching when moving from N56 into 5 to provide B. Last edited by Shovelman; 02-03-2017 at 09:23 AM.. Reason: error |
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02-06-2017, 09:56 AM | #30 |
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For those who have a manual, does anyone else experience an inconsistent “throttle-blip” on downshift with the auto-rev feature in the M240?
I’ve driven a manual my entire life and love the rev-match feature. That said, it seems to only work about 60% of the time and since I don’t automatically blip the throttle anymore with my right foot on downshifts, when the system doesn’t work, it’s VERY noticeable and I look like a noob. If I am giving the car gas immediately prior to downshifts, the system works 90% of the time. However, if the last action was breaking or coasting (typically at lower speeds - anything less than 40 mph), then the auto-rev feature only works 60% of the time. The car seems to especially get confused in stop-n-go traffic. I’ve learned a ton on this forum, so perhaps others have experienced similar events that I can learn from. thanks. |
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02-06-2017, 11:03 AM | #31 |
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Not mad at all that this feature is out there now for people that want it, but I HATE that you have to disable everything in order to turn it off. It should just be a simple preference that you can tick on or off. Not sure I would buy a 240 because of this, and if I did I would probably just get the auto. For me, rev matching and heel toeing is a huge part of the reason I enjoy manual transmissions.
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02-06-2017, 11:28 AM | #32 | ||
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03-02-2018, 12:04 AM | #33 | |
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03-02-2018, 05:54 AM | #35 |
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Yes, but that's not the reason for the above as I have not been in DSC off mode yet in this car.
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03-05-2018, 01:09 PM | #36 |
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Make sure the dealer doesn't update your car. It removes the rev matching in all gears and only allows it for 1 gear down. So 4>2 doesn't work anymore but 4>3 will. I HATE it and it's so annoying because I was used to every gear working.
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03-05-2018, 03:42 PM | #37 | |
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The first time I drove it was on a road trip from SC to IN when I first bought it. I remember it working flawlessly on that trip. Not sure what is going on now...
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03-05-2018, 10:07 PM | #38 | |
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Example - do all the shifts without releasing the clutch: Driving in 5th, rpm at correct level for 5th Shift into 4th, rpm at correct level for 4th Shift into 3rd, rpm at correct level for 5th Shift into 4th, rpm at correct level for 4th Seems like a software bug to me!
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03-06-2018, 05:11 AM | #39 | ||
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03-06-2018, 05:37 AM | #40 |
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Thank you 42395_skyline! This is a great find!
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03-06-2018, 09:45 AM | #41 |
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Good find, indeed! It will be interesting to see if the engineers come back and admit it was a bug or if it turns out to be a permanent change for some crazy legal/safety reason. I do think it is a bug though, because I could swear it was working perfectly in every gear when I drove it home on Jan. 3rd. Now, all of a sudden, in March, it is operating differently for sure.
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03-06-2018, 06:59 PM | #42 |
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Is this software update something that dealers usually apply without asking when you're in for your next service? My car definitely blips properly when going 4->2, 6->3, etc. As much as I'd love a button to turn auto-blip off completely, it makes no sense to have the car blip 3->2 and 4->3 but not 4->2.
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03-16-2018, 08:02 PM | #43 | |
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