E90Post
 


TNT Racewerks
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > 335is Transmission Overheat After bog shift delete on mhd



Reply
 
Thread Tools Search this Thread
      12-22-2018, 11:36 PM   #1
AllenE92PrettyFast
Banned
United_States
9
Rep
91
Posts

Drives: BMW E92 335Is FBO MHD Stage 2+
Join Date: May 2018
Location: Michigan

iTrader: (0)

335is Transmission Overheat After bog shift delete on mhd

So i was driving the car after it was warm and after 2 to 3 pulls it says transmission ovetheat put car in park till cool. And it went away after 20 secs. Is this because of the shift bog delete? Tq limit 2048 or smthn like that. I have a 7 speed dct
I did the shift bog so it backfires at red line. Help please
Appreciate 0
      12-23-2018, 09:12 PM   #2
LMB335IS
Sua Sponte
LMB335IS's Avatar
United_States
1299
Rep
2,850
Posts

Drives: 2013 LMB 335is
Join Date: May 2008
Location: FOB FL

iTrader: (21)

Garage List
2013 BMW 335is  [8.84]
Why the F would you use a option that you know is meant for manual cars with a DCT? Yeah I'd guess that might have something to do with. Take a look at what a new clutch pack with install costs. That backfire's not nearly as cool now.
__________________
335is/DCT-M3 GTS software-M3 drivetrain-M3 GWS-KOMBI-DSC-SZL/MHD/BQ Tuning IG@ClustersandCoding
Appreciate 4
      12-23-2018, 10:09 PM   #3
fredcase
Captain
Canada
261
Rep
776
Posts

Drives: Bmw=trash
Join Date: Mar 2014
Location: Noyb

iTrader: (1)

Partout
Appreciate 3
b92539.50
      12-24-2018, 07:51 AM   #4
feuer
Major General
feuer's Avatar
United_States
4276
Rep
9,206
Posts

Drives: wife crazy!
Join Date: Apr 2015
Location: Chicago, IL

iTrader: (5)

But it was pretty fast......
Appreciate 2
LMB335IS1299.00
      12-24-2018, 08:09 AM   #5
TheMidnightNarwhal
Major General
TheMidnightNarwhal's Avatar
Canada
2659
Rep
6,290
Posts

Drives: 11' 335is DCT
Join Date: Jun 2015
Location: Gatineau, Quebec

iTrader: (0)

Quote:
Originally Posted by fredcase View Post
Partout




Quote:
Originally Posted by AllenE92PrettyFast View Post
So i was driving the car after it was warm and after 2 to 3 pulls it says transmission ovetheat put car in park till cool. And it went away after 20 secs. Is this because of the shift bog delete? Tq limit 2048 or smthn like that. I have a 7 speed dct
I did the shift bog so it backfires at red line. Help please
Damn op, yeah backfires are really awesome but why use a option not made for your transmission especially on a aftermarket tune.

Just remove the tune and see if you still have issues. That's the first thing I would do. Have you not done any troubleshooting yet?
Appreciate 0
      12-24-2018, 10:58 AM   #6
rjahl
Colonel
rjahl's Avatar
996
Rep
2,287
Posts

Drives: Z4 35is
Join Date: Jun 2011
Location: Tampa

iTrader: (0)

Garage List
2012 Z4 35is  [0.00]
Quote:
Originally Posted by TheMidnightNarwhal View Post
Quote:
Originally Posted by fredcase View Post
Partout




Quote:
Originally Posted by AllenE92PrettyFast View Post
So i was driving the car after it was warm and after 2 to 3 pulls it says transmission ovetheat put car in park till cool. And it went away after 20 secs. Is this because of the shift bog delete? Tq limit 2048 or smthn like that. I have a 7 speed dct
I did the shift bog so it backfires at red line. Help please
Damn op, yeah backfires are really awesome but why use a option not made for your transmission especially on a aftermarket tune.

Just remove the tune and see if you still have issues. That's the first thing I would do. Have you not done any troubleshooting yet?
So what exactly does the "shift bog delete" do?

Sounds like it's removing the torque reduction request during a shift". I didn't know the manuals trans had that. Ya, if you try this with a DCT and a high torque motor, you'll probably kill it. Could get lucky and everything will be fin after removing the feature.

Just a few thousand less miles left on your clutches.

The whole torque management logic during a auto or DCT shift is a delicate balance of power transfer, timing and kinetic energy get it wrong and this well go wrong.
Appreciate 0
      12-24-2018, 11:13 AM   #7
TheMidnightNarwhal
Major General
TheMidnightNarwhal's Avatar
Canada
2659
Rep
6,290
Posts

Drives: 11' 335is DCT
Join Date: Jun 2015
Location: Gatineau, Quebec

iTrader: (0)

Quote:
Originally Posted by rjahl View Post
So what exactly does the "shift bog delete" do?

Sounds like it's removing the torque reduction request during a shift". I didn't know the manuals trans had that. Ya, if you try this with a DCT and a high torque motor, you'll probably kill it. Could get lucky and everything will be fin after removing the feature.

Just a few thousand less miles left on your clutches.

The whole torque management logic during a auto or DCT shift is a delicate balance of power transfer, timing and kinetic energy get it wrong and this well go wrong.
I'm not to sure, I didn't even know the option was there. Apparently sometimes when you shift fast manual you won't have full power. I'll have to test my car and see, I wonder now if my car will pop more in shifts with it? Hmm .

But yeah setting options on things that are not meant to have it is never good hahaha
Appreciate 0
      01-25-2019, 05:51 PM   #8
AllenE92PrettyFast
Banned
United_States
9
Rep
91
Posts

Drives: BMW E92 335Is FBO MHD Stage 2+
Join Date: May 2018
Location: Michigan

iTrader: (0)

No worry bois, i didn't blow up the clutch pack, it was the tune that bugged out. Ig i didn't wait 30 secs after i was too happy to try it out, I'm still running the tq lim delete and the car is fbo w stage 2+ and no problems at all.
Appreciate 0
      01-29-2019, 11:39 PM   #9
MJ80.
Major
MJ80.'s Avatar
204
Rep
1,103
Posts

Drives: E92 335i DCT Individual
Join Date: Oct 2013
Location: Gold Coast, Australia.

iTrader: (0)

You can run it on DCT, changes the character of the car a touch, bounces off the limiter with it on and makes the shifts a bit more enjoyable.
Appreciate 0
      01-30-2019, 07:18 AM   #10
mweisdorfer
Major General
mweisdorfer's Avatar
United_States
1903
Rep
6,968
Posts

Drives: 2007 Black/Black 335i e90
Join Date: Apr 2011
Location: Holly, MI

iTrader: (0)

Garage List
2007 BMW E90 335i  [0.00]
2008 bmw x5  [0.00]
Quote:
Originally Posted by AllenE92PrettyFast View Post
So i was driving the car after it was warm and after 2 to 3 pulls it says transmission ovetheat put car in park till cool. And it went away after 20 secs. Is this because of the shift bog delete? Tq limit 2048 or smthn like that. I have a 7 speed dct
I did the shift bog so it backfires at red line. Help please
The DCT is a REALLY, EXPENSIVE transmission....
Wow!!!! I can't believe you did that !!!

Hope you can find a deal on a good, used DCT trans
Appreciate 0
      02-03-2019, 08:36 AM   #11
AllenE92PrettyFast
Banned
United_States
9
Rep
91
Posts

Drives: BMW E92 335Is FBO MHD Stage 2+
Join Date: May 2018
Location: Michigan

iTrader: (0)

Quote:
Originally Posted by mweisdorfer View Post
The DCT is a REALLY, EXPENSIVE transmission....
Wow!!!! I can't believe you did that !!!

Hope you can find a deal on a good, used DCT trans
Not that expensive used/ nothing happend still running the car to this day w same option and mhd stage 2+ you should hear the redline while drifting in snow. Wake up neighbors within a half mile radius. Till the cops asked me wtf i was doing ofc
Appreciate 0
Reply

Bookmarks


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 04:13 AM.




e90post
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