Pandora Car Alarm System
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 > Engine / Drivetrain / Exhaust / Bolt-ons / Tuning

Post Reply
 
Thread Tools Search this Thread
      10-26-2020, 07:58 AM   #1
PixelJanitor
New Member
0
Rep
20
Posts

Drives: F80 / F82
Join Date: Sep 2020
Location: Denver Colorado

iTrader: (1)

Aggressive reverse movement after flash

I recently flashed my DCT on my F82 with BootMod3 to the GTS tune, and with Thor, also flashed LSD, MDM, and steering. When cold, the idle when starting to reverse is sometimes very unsteady, dips down for a second, and almost stalls out sometimes. In addition, when this happens there seems to feel a vibration in the rear end for a moment and some small lunges when trying to gently reverse.

Is this normal with the updated clutch pressure changes from the flashes? Next steps was to reverse some of the flashes to stock one my one to nail down the on that caused this issue, but wanted to reach out on here first to see if others have experienced this?

Last edited by PixelJanitor; 10-26-2020 at 12:31 PM..
Appreciate 0
      10-26-2020, 12:32 PM   #2
PixelJanitor
New Member
0
Rep
20
Posts

Drives: F80 / F82
Join Date: Sep 2020
Location: Denver Colorado

iTrader: (1)

I uninstalled Thor and it didn't help. Once the vehicle was warmed up there was slight to none of these symptoms. Cold clutch issue you think?
Appreciate 0
      10-27-2020, 03:19 AM   #3
andrei.m4
Second Lieutenant
113
Rep
291
Posts

Drives: bmw f82
Join Date: Mar 2019
Location: Romania

iTrader: (0)

My car was same on gts/cs bm3 or thor. The only one solved the problem was xhp dct software(i am on stage3, not tested other stages). After first flash drive 100-200km without hard push, let the gearbox to adapt.
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 06:08 AM.




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