Rev-matching issue (in Sport +)

Mrfurious214 · 09-11-2015, 12:51 PM

Hey guys, I've got about 7,000 miles on my f80 (manual) and I drive it about 99% in Sport +. For a little while now I've been having some problems with rev-matching trying to occur while in Sport +. It happens when I'm in low rev's in 3rd or 4th down shifting into 2nd or 3rd. I notice it a lot now when I' coming to a slow or stop but it doesn't happen exactly like rev-matching should work like when in Sport mode. You can tell it's f'ing up because it blips the engine but usually it happens well after I have already shifted into gear (usually rev matching happens as soon as your shift into gear). I'm going to bring it to service but I"m just curious if anyone else has had this happen.

azn_fcuk · 09-11-2015, 01:05 PM

sounds like a dealer warranty issue.

04cobra · 09-11-2015, 01:15 PM

What? Rev-matching is disabled in Sport+

Edit: Oh I read this wrong, it IS happening in sport+, sorry. yes bring it in

FC4 · 09-11-2015, 01:15 PM

Yeah, definitely a warranty issue. Take it in. Rev-matching should not work in Sport+ at all.

BMW M4 PWR · 09-11-2015, 04:37 PM

Quote:

Originally Posted by FC4

Yeah, definitely a warranty issue. Take it in. Rev-matching should not work in Sport+ at all.

So cool! Ask the dealer if they can program my M4 to actually DO what you're complaining about!?

(as in I WANT rev-match for my sport+ too!)

Powaup · 09-11-2015, 07:22 PM

Quote:

Originally Posted by BMW M4 PWR

Quote:

Originally Posted by FC4

Yeah, definitely a warranty issue. Take it in. Rev-matching should not work in Sport+ at all.

So cool! Ask the dealer if they can program my M4 to actually DO what you're complaining about!?

(as in I WANT rev-match for my sport+ too!)

+1000

goosey2099 · 09-14-2015, 06:44 PM

^+1

M4 Dream · 09-15-2015, 03:58 PM

I don't know if this is relate but my engine is gone because the RPM hit 8400. I don't know how that happened

MavRick · 09-15-2015, 08:55 PM

Quote:

Originally Posted by M4 Dream

I don't know if this is relate but my engine is gone because the RPM hit 8400. I don't know how that happened

missed downshift? thats pretty much the only way it could happen, seeing that it has a rev-limiter...

X2Board · 09-16-2015, 07:07 PM

Quote:

Originally Posted by M4 Dream

I don't know if this is relate but my engine is gone because the RPM hit 8400. I don't know how that happened

My E90 did that all the time

You my friend, experienced what is known as "A money shift".

guarnibl · 09-16-2015, 10:01 PM

Shocked that 8400 RPM killed your engine. I've personally never money shifted, but a friend of mine went to ~9500 RPM (~2500 RPM over) once in his Cobra, and his engine turned out just fine. Perhaps luck on his end. You'd also need to be really slamming it in gear to get it to go to 2nd by accident.

kitesurfer · 11-05-2015, 03:23 PM

Quote:

Originally Posted by Mrfurious214

Hey guys, I've got about 7,000 miles on my f80 (manual) and I drive it about 99% in Sport +. For a little while now I've been having some problems with rev-matching trying to occur while in Sport +. It happens when I'm in low rev's in 3rd or 4th down shifting into 2nd or 3rd. I notice it a lot now when I' coming to a slow or stop but it doesn't happen exactly like rev-matching should work like when in Sport mode. You can tell it's f'ing up because it blips the engine but usually it happens well after I have already shifted into gear (usually rev matching happens as soon as your shift into gear). I'm going to bring it to service but I"m just curious if anyone else has had this happen.

curious was your dealer able to correct this if so how?....I too have been having issues and the dealer has not been able to diagnose

Jockey · 11-05-2015, 06:22 PM

Quote:

Originally Posted by goosey2099

^+1

+2

te37 · 11-05-2015, 07:18 PM

Quote:

Originally Posted by Jockey

+2

+3

Mrfurious214 · 11-08-2015, 12:15 PM

No, they looked at it and found no faults triggered. I think I have started to understand the issue, so maybe you guys can confirm if this happens to you (manual cars only). I think this issue happens only when the clutch is depressed right around the bite point. If I move my seat forward and press the clutch deeper during shifts it seems to stop completely. I don't enjoy this because its not as natural for me to shift gears but I can deal with it. Can anyone try and confirm?

kitesurfer · 11-08-2015, 05:30 PM

Quote:

Originally Posted by Mrfurious214

No, they looked at it and found no faults triggered. I think I have started to understand the issue, so maybe you guys can confirm if this happens to you (manual cars only). I think this issue happens only when the clutch is depressed right around the bite point. If I move my seat forward and press the clutch deeper during shifts it seems to stop completely. I don't enjoy this because its not as natural for me to shift gears but I can deal with it. Can anyone try and confirm?

I started another thread for 6 MT owners who are all experiencing rev. match problems and an potential fixes if you want to join in the conversation here is the thread.

http://f80.bimmerpost.com/forums/sho...0#post18866830

09-11-2015, 12:51 PM	#1
Mrfurious214 Second Lieutenant 93 Rep 290 Posts Drives: 2015 Mineral White M3 Join Date: Jun 2012 Location: Ridgewood, NJ iTrader: (0)	Rev-matching issue (in Sport +) Hey guys, I've got about 7,000 miles on my f80 (manual) and I drive it about 99% in Sport +. For a little while now I've been having some problems with rev-matching trying to occur while in Sport +. It happens when I'm in low rev's in 3rd or 4th down shifting into 2nd or 3rd. I notice it a lot now when I' coming to a slow or stop but it doesn't happen exactly like rev-matching should work like when in Sport mode. You can tell it's f'ing up because it blips the engine but usually it happens well after I have already shifted into gear (usually rev matching happens as soon as your shift into gear). I'm going to bring it to service but I"m just curious if anyone else has had this happen.
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09-11-2015, 01:05 PM	#2
azn_fcuk Lieutenant 179 Rep 482 Posts Drives: M4, X6MC, AMG GT Pro Join Date: Sep 2014 Location: Canada iTrader: (0)	sounds like a dealer warranty issue.
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09-11-2015, 01:15 PM	#3
04cobra Banned 634 Rep 1,048 Posts Drives: 2015 M3 - 6MT Join Date: Mar 2011 Location: MN iTrader: (0)	What? Rev-matching is disabled in Sport+ Edit: Oh I read this wrong, it IS happening in sport+, sorry. yes bring it in
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09-11-2015, 01:15 PM	#4
FC4 Brigadier General 2759 Rep 3,446 Posts Drives: Yes Join Date: May 2014 Location: US iTrader: (0)	Yeah, definitely a warranty issue. Take it in. Rev-matching should not work in Sport+ at all.
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09-14-2015, 06:44 PM	#7
goosey2099 Private 13 Rep 74 Posts Drives: 2015 M4/2001 GALANT AWD Join Date: Jan 2015 Location: Staten Island iTrader: (0)	^+1
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09-15-2015, 03:58 PM	#8
M4 Dream New Member 11 Rep 25 Posts Drives: X5 Twin Join Date: Mar 2014 Location: NY NY iTrader: (0)	I don't know if this is relate but my engine is gone because the RPM hit 8400. I don't know how that happened
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09-16-2015, 10:01 PM	#11
guarnibl Major 210 Rep 1,048 Posts Drives: Depends on the day. Join Date: Nov 2008 Location: Scottsdale, AZ iTrader: (0)	Shocked that 8400 RPM killed your engine. I've personally never money shifted, but a friend of mine went to ~9500 RPM (~2500 RPM over) once in his Cobra, and his engine turned out just fine. Perhaps luck on his end. You'd also need to be really slamming it in gear to get it to go to 2nd by accident. __________________ 2019 Jeep Wrangler \| 2018 BMW 320i \| 2016 Porsche Boxster Spyder \| 2009 Jeep Wrangler gone: 2015 M4, 2015 335i, 2012 Turbo S, 2008 M3, 2004 M3, 2003 330xi
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11-08-2015, 12:15 PM	#15
Mrfurious214 Second Lieutenant 93 Rep 290 Posts Drives: 2015 Mineral White M3 Join Date: Jun 2012 Location: Ridgewood, NJ iTrader: (0)	No, they looked at it and found no faults triggered. I think I have started to understand the issue, so maybe you guys can confirm if this happens to you (manual cars only). I think this issue happens only when the clutch is depressed right around the bite point. If I move my seat forward and press the clutch deeper during shifts it seems to stop completely. I don't enjoy this because its not as natural for me to shift gears but I can deal with it. Can anyone try and confirm?
	Appreciate 0 Quote