BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read

Go Back   BMW M3 and BMW M4 Forum > BMW F80 M3 / F82 M4 Technical Topics > DIY and Coding Discussions

Post Reply
 
Thread Tools Search this Thread
      09-29-2017, 01:25 AM   #67
upsidedownfunnel
Colonel
United_States
1996
Rep
2,499
Posts

Drives: 2014 335i
Join Date: Jul 2017
Location: SoCal

iTrader: (4)

Garage List
2014 BMW 335i  [0.00]
Quote:
Originally Posted by MattJ1320 View Post
In short...from the mechanical perspective- They are saving warranty work for leaking rear main seals.. Down shifting (as fun and awesome as it is- does a job on your rear main seal)
Hence why they are only allowing downshifting in a non aggressive mode
Why would downshifting cause a leaking rear main seal? Can you please explain your reasoning here? I've never heard of this. Downshifting isn't "fun and awesome", it's a necessary part of driving a manual transmission.
Appreciate 0
      09-29-2017, 07:47 PM   #68
sleeprequired
Second Lieutenant
Australia
79
Rep
241
Posts

Drives: 2018 m3
Join Date: Sep 2017
Location: melbourne

iTrader: (0)

silly question but can someone explain rev matching & pros and cons assuming it's not obvious once it's explained?
Appreciate 0
      05-01-2018, 07:28 AM   #69
FC
Lieutenant
233
Rep
510
Posts

Drives: '21 F90, '23 BGTS 4.0, '21 GTI
Join Date: Apr 2009
Location: Northeast

iTrader: (0)

I'm frankly shocked that this thread is not more active and that more people have not tried this and reported back. What's the deal?

Any issues? Any fears?
Appreciate 0
      05-09-2018, 12:50 PM   #70
gatorfast
Major General
gatorfast's Avatar
United_States
4969
Rep
6,854
Posts

Drives: 718 Cayman
Join Date: Jan 2008
Location: SoFla

iTrader: (4)

Quote:
Originally Posted by FC View Post
I'm frankly shocked that this thread is not more active and that more people have not tried this and reported back. What's the deal?

Any issues? Any fears?
Now that all of the tuners have figured out how to enable rev match in all modes or remove it in all modes that is where most people are turning.
Appreciate 0
      05-09-2018, 01:02 PM   #71
Mandi90TT
Colonel
United_States
2712
Rep
2,371
Posts

Drives: BSM 6MT M4 F82
Join Date: Aug 2014
Location: Colorado Springs

iTrader: (0)

I don't think BM3 is there yet, as that is one big thing I am waiting for, and have not heard anything from them about it yet.
__________________
2015 Black Sapphire Metallic 6MT M4
Appreciate 0
      03-28-2020, 04:31 AM   #72
jpy1980
Lieutenant Colonel
jpy1980's Avatar
United_States
1578
Rep
1,973
Posts

Drives: 2015 BMW M3 -Smurfy Blue Vinyl
Join Date: Sep 2018
Location: Los Angeles

iTrader: (3)

Are people still using this trick to code out auto rev match? I’m getting rid if my BM3 License and I would like the option to get rid of auto rev match.
Appreciate 0
      03-28-2020, 01:38 PM   #73
icebiker
Lieutenant
icebiker's Avatar
492
Rep
426
Posts

Drives: 2016 F83 6MT
Join Date: Feb 2019
Location: New Jersey

iTrader: (0)

Quote:
Originally Posted by jpy1980 View Post
Are people still using this trick to code out auto rev match? I’m getting rid if my BM3 License and I would like the option to get rid of auto rev match.
I have a stock 2016 F83 manual which rev matches in all modes. Must be that the software was updated by the prior owner before I bought it last year. After multiple trips to the dealer to explain (unsuccessfully) that it is NOT supposed to rev match in sport+, I played around with things (no coding though) and found that I could stop rev match in all modes for the length of any given drive by doing the following:

Press start button once (do not depress clutch)
Select Sport +
Depress clutch and press start button to start the car
Drive off and enjoy!

Note: rev match will be now "off" in all modes. However, if you select sport or efficient too soon I find it occasionally begins to rev match again. If you stay in sport + for approx 20 mins from the start, it seems to hold the rev match "off" mode for the length of your drive even if you switch modes during the drive.

Hope it works for you!
Appreciate 2
ntg442887.50
bp726.50
      03-28-2020, 03:39 PM   #74
jpy1980
Lieutenant Colonel
jpy1980's Avatar
United_States
1578
Rep
1,973
Posts

Drives: 2015 BMW M3 -Smurfy Blue Vinyl
Join Date: Sep 2018
Location: Los Angeles

iTrader: (3)

Quote:
Originally Posted by icebiker View Post
I have a stock 2016 F83 manual which rev matches in all modes. Must be that the software was updated by the prior owner before I bought it last year. After multiple trips to the dealer to explain (unsuccessfully) that it is NOT supposed to rev match in sport+, I played around with things (no coding though) and found that I could stop rev match in all modes for the length of any given drive by doing the following:

Press start button once (do not depress clutch)
Select Sport +
Depress clutch and press start button to start the car
Drive off and enjoy!

Note: rev match will be now "off" in all modes. However, if you select sport or efficient too soon I find it occasionally begins to rev match again. If you stay in sport + for approx 20 mins from the start, it seems to hold the rev match "off" mode for the length of your drive even if you switch modes during the drive.

Hope it works for you!
Whoa! Neat trick. Ill try it out and report later!
Appreciate 0
      09-03-2020, 03:58 PM   #75
D_SheerDrivingPleasure
Captain
D_SheerDrivingPleasure's Avatar
United_States
1081
Rep
913
Posts

Drives: F80
Join Date: Aug 2020
Location: NYC

iTrader: (0)

Quote:
Originally Posted by jpy1980 View Post
Whoa! Neat trick. Ill try it out and report later!
did that trick work? Anyone know if bimmercode has a rev match disable function or do I need to spend $500+ to disable it with Bootmode? On my car rev match is on in all mods except when DSC is disable.

thanks.
Appreciate 1
      09-26-2020, 09:10 PM   #76
PsychCA
Lieutenant
PsychCA's Avatar
No_Country
194
Rep
421
Posts

Drives: M3 E92 6MT - M3 F80 ZCP 6MT
Join Date: May 2017
Location: GTA

iTrader: (0)

I’m curious as well if that trick worked out well ?
Only thing seems to be you have to do it every time you restart the engine?
Appreciate 0
      09-27-2020, 11:31 PM   #77
icebiker
Lieutenant
icebiker's Avatar
492
Rep
426
Posts

Drives: 2016 F83 6MT
Join Date: Feb 2019
Location: New Jersey

iTrader: (0)

FWIW that trick continues to work consistently for me. Yep it's not as convenient as being able to do it on the fly, but it's nice to have the rev match off in all modes (not otherwise possible without BM3 or similar)
Appreciate 0
      10-12-2020, 12:27 AM   #78
bp7
Enlisted Member
27
Rep
42
Posts

Drives: M4 6MT
Join Date: Sep 2020
Location: MA

iTrader: (0)

Quote:
Originally Posted by icebiker View Post
FWIW that trick continues to work consistently for me. Yep it's not as convenient as being able to do it on the fly, but it's nice to have the rev match off in all modes (not otherwise possible without BM3 or similar)
The trick being this?:

Press start button once (do not depress clutch)
Select Sport +
Depress clutch and press start button to start the car
Drive off and enjoy!

I.e. coding this out in bimmercode as described by OP and others does not work?
Appreciate 0
      10-12-2020, 08:48 AM   #79
icebiker
Lieutenant
icebiker's Avatar
492
Rep
426
Posts

Drives: 2016 F83 6MT
Join Date: Feb 2019
Location: New Jersey

iTrader: (0)

Quote:
Originally Posted by bp7 View Post
Quote:
Originally Posted by icebiker View Post
FWIW that trick continues to work consistently for me. Yep it's not as convenient as being able to do it on the fly, but it's nice to have the rev match off in all modes (not otherwise possible without BM3 or similar)
The trick being this?:

Press start button once (do not depress clutch)
Select Sport +
Depress clutch and press start button to start the car
Drive off and enjoy!

I.e. coding this out in bimmercode as described by OP and others does not work?
Yes, this is what works for me. I'm not sure if it'll work for everyone since my car (2016) is not supposed to rev match in Sport+, yet it does, just as later 2018 onward cars seem to do. I have confirmed there is no aftermarket tune (eg BM3) in the car, so I suspect the prior owner had the software updated by BMW at some point which overwrote the original transmission code. I have the full service history of the car and it does show the prior owner had an issue with the trunk locking which the dealer fixed with some form of code update in July 2018. Not sure if that's what caused it to rev match in all modes but the trick above does work for me to turn rev match either all off or all on.
Appreciate 0
      10-15-2020, 06:20 PM   #80
bp7
Enlisted Member
27
Rep
42
Posts

Drives: M4 6MT
Join Date: Sep 2020
Location: MA

iTrader: (0)

Is there any downside to starting up the car in sport plus mode - i.e. additional strain on engine, etc.?
Appreciate 0
      10-18-2020, 09:53 PM   #81
Ejones4541
Second Lieutenant
United_States
131
Rep
227
Posts

Drives: 2020 M4 ZCP
Join Date: Mar 2009
Location: Charlotte, NC

iTrader: (0)

Quote:
Originally Posted by bp7 View Post
Is there any downside to starting up the car in sport plus mode - i.e. additional strain on engine, etc.?
No
Appreciate 0
      03-11-2021, 11:32 AM   #82
Happy77
New Member
Happy77's Avatar
8
Rep
19
Posts

Drives: BMW 118d
Join Date: Aug 2020
Location: Granarolo (BO) (Italy)

iTrader: (0)

Turn off it by bimmercode

Here you are a new setting by bimmercode for my 118D:
FEM / EXPERT MODE / 3020 Tc MASTER:

TCM_STARTLOCK_BRAKE =>aktiv
TCM_STARTLOCK_CLUTCH => nicht_aktiv
TCM_STARTLOCK_DRIVINGREADINESS => nicht_aktiv

You start engine with only one push of button and getting down bouth pedal (Brake + clutch)
I confirm in this setting too a little increase in about 200 RPM when i stop the car and engaged every gear.


You can code it all in NICHT AKTIV too but you have to push the strart button two times to start engine.
Appreciate 0
      02-27-2022, 07:55 PM   #83
Blue Liquid
First Lieutenant
Blue Liquid's Avatar
United_States
18
Rep
363
Posts

Drives: Silverstone F80
Join Date: Apr 2010
Location: NJ

iTrader: (0)

Okay, here we are in 2022: SURELY someone has used BimmerCode to enable rev-matching in SportPlus...
Appreciate 0
      02-27-2022, 08:12 PM   #84
Mandi90TT
Colonel
United_States
2712
Rep
2,371
Posts

Drives: BSM 6MT M4 F82
Join Date: Aug 2014
Location: Colorado Springs

iTrader: (0)

Quote:
Originally Posted by Blue Liquid View Post
Okay, here we are in 2022: SURELY someone has used BimmerCode to enable rev-matching in SportPlus...
Just get a BM3 tune, it will do the job, along with a lot of other things that are also great.
__________________
2015 Black Sapphire Metallic 6MT M4
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 04:35 PM.




f80post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST