BMW M3 Forum (E90 E92)

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


Go Back   M3Post - BMW M3 Forum > M3 (E90 / E92 / E93) > General M3 Forum (E90 + E92 + E93)
 
GT Haus
Post Reply
 
Thread Tools Search this Thread
      09-22-2008, 04:08 PM   #67
GT3 Tim
Moderator
 
GT3 Tim's Avatar
 
Drives: 2008 E90 M3
Join Date: Feb 2008
Location: Sacramento, CA

Posts: 1,894
iTrader: (0)

Quote:
Originally Posted by Fkellym3 View Post
that..under the center trunk mat area.....

what is that?
I know one of them is the BMW Assist Module, which I do not have. lol I thnk there is another one...and don't recall wtf it is at the moment. Maybe one of the guys with the nice schematics will chime in with a sweet diagram attachment of the trunk modules.
__________________
Tim (apparently likes "3" cars)
E90 M3 -- Current ride
2004 GT3 -- Sold
1997 M3/4 -- Sold
1995 M3 -- Sold
GT3 Tim is offline   United_States
0
Reply With Quote
      09-22-2008, 05:29 PM   #68
lvwirelessguy
Captain
 
Drives: 2011 E92 M3, 2012 Golf TDI
Join Date: Feb 2006
Location: 702

Posts: 947
iTrader: (1)

Garage List
2005 M3  [0.00]
Send a message via Yahoo to lvwirelessguy
Quote:
Originally Posted by skierman64 View Post
I don't agree with this assessment. I find that it rev matches perfectly without driver assistance. In fact even on the track at high rpm I found many times I had to look to see if it had downshifted or not (because of the downshift ignore issue) because it was so smooth I couldn't feel it in the seat of the pants under hard braking. I don't feel any downshift driveline jolt because the downshifts aren't perfectly matched. However, I do think the amount of downshift blip is dependent on which S setting you have selected.

I'm not discounting you have a lot of SMG/DCT experience, I just haven't felt what you're saying.
For example just do a 3-2 downshift when you are coming up to a light, once just braking while downshifting ( should see the needle blip about 100 rpms or so )

then do it again using the heel / toe downshift method and the needle will blip around 500 rpms

You will not only be able to see the difference in downshifting on the tach but feel it as well

I always almost always keep it in S5 and maybe its just me but I like to get more than a 100 rpm blip when Im downshifting from 3-2 at around 40-45mph
lvwirelessguy is offline   United_States
0
Reply With Quote
      09-22-2008, 05:59 PM   #69
skierman64
Brigadier General
 
skierman64's Avatar
 
Drives: 2008 E92 Space Gray M3 & E36M3
Join Date: Dec 2006
Location: Greater St Louis Metro area

Posts: 3,068
iTrader: (1)

Garage List
1998 M3 Coupe  [0.00]
2008 M3 Coupe  [0.00]
Send a message via Yahoo to skierman64
Quote:
Originally Posted by lvwirelessguy View Post
For example just do a 3-2 downshift when you are coming up to a light, once just braking while downshifting ( should see the needle blip about 100 rpms or so )

then do it again using the heel / toe downshift method and the needle will blip around 500 rpms

You will not only be able to see the difference in downshifting on the tach but feel it as well

I always almost always keep it in S5 and maybe its just me but I like to get more than a 100 rpm blip when Im downshifting from 3-2 at around 40-45mph
I'm driving 355 miles tomorrow, I'll play around with it and try to see what you're talking about.
__________________
Get a professional motorsports full featured stopwatch app for your Blackberry here: http://appworld.blackberry.com/webstore/content/19464
Invest Wisely...The best mod for your money?? BMWCCA high performance driver's school. The mod that lasts a lifetime and improves the performance of any car you drive
skierman64 is offline   United_States
0
Reply With Quote
      09-22-2008, 09:11 PM   #70
Ronin13
First Lieutenant
 
Ronin13's Avatar
 
Drives: DKG E92 M3, S2K, JGC
Join Date: Jan 2008
Location: STL, MO

Posts: 362
iTrader: (0)

Quote:
Originally Posted by lvwirelessguy View Post
For example just do a 3-2 downshift when you are coming up to a light, once just braking while downshifting ( should see the needle blip about 100 rpms or so )

then do it again using the heel / toe downshift method and the needle will blip around 500 rpms

You will not only be able to see the difference in downshifting on the tach but feel it as well

I always almost always keep it in S5 and maybe its just me but I like to get more than a 100 rpm blip when Im downshifting from 3-2 at around 40-45mph
Just to clarify... are you proposing that DCT is ignoring the downshift under threshold breaking because the engine revs wouldn't be high enough under the system's initiated throttle blip? If so, don't see how it could be rev related as breaking would just seem to lower the rev requirement vs. a steady state downshift request.
Ronin13 is offline   United_States
0
Reply With Quote
      09-22-2008, 09:46 PM   #71
lvwirelessguy
Captain
 
Drives: 2011 E92 M3, 2012 Golf TDI
Join Date: Feb 2006
Location: 702

Posts: 947
iTrader: (1)

Garage List
2005 M3  [0.00]
Send a message via Yahoo to lvwirelessguy
Quote:
Originally Posted by Ronin13 View Post
Just to clarify... are you proposing that DCT is ignoring the downshift under threshold breaking because the engine revs wouldn't be high enough under the system's initiated throttle blip? If so, don't see how it could be rev related as breaking would just seem to lower the rev requirement vs. a steady state downshift request.
I am simply suggesting that its something worth trying, since it is the only way to truly get a full rev matched downshift from the M3.

But as a couple of other members have mentioned , their ABS is kicking in and it seems like that is what is giving the problem with drivelogic
lvwirelessguy is offline   United_States
0
Reply With Quote
      09-22-2008, 10:06 PM   #72
skierman64
Brigadier General
 
skierman64's Avatar
 
Drives: 2008 E92 Space Gray M3 & E36M3
Join Date: Dec 2006
Location: Greater St Louis Metro area

Posts: 3,068
iTrader: (1)

Garage List
1998 M3 Coupe  [0.00]
2008 M3 Coupe  [0.00]
Send a message via Yahoo to skierman64
I can say in my case it is not ABS related as I was not cycling the ABS when DCT ignored my downshift command. In fact I was braking at approximately 90-95% when DCT downshift command was ignored.
__________________
Get a professional motorsports full featured stopwatch app for your Blackberry here: http://appworld.blackberry.com/webstore/content/19464
Invest Wisely...The best mod for your money?? BMWCCA high performance driver's school. The mod that lasts a lifetime and improves the performance of any car you drive
skierman64 is offline   United_States
0
Reply With Quote
      09-23-2008, 10:38 AM   #73
adamr
Major
 
adamr's Avatar
 
Drives: 997 GT3 RS
Join Date: Dec 2006
Location: Johannesburg

Posts: 1,032
iTrader: (0)

Garage List
Quote:
Originally Posted by skierman64 View Post
I can say in my case it is not ABS related as I was not cycling the ABS when DCT ignored my downshift command. In fact I was braking at approximately 90-95% when DCT downshift command was ignored.
yup had this happened to me as well today, under intense breaking, it just ignored my downshift on the paddles ... no ABS
__________________


2007 Porsche 997 GT3 RS
|PCM with NAV and GSM|Roll Cage|PCCB|Xenons|Sports Chrono Plus|PASM|Leather Pack|Silver Seat-belts|
adamr is offline   South Africa
0
Reply With Quote
      09-23-2008, 10:45 AM   #74
mkoesel
Moderator
 
Drives: 2015 SO/CSAT F80 M3
Join Date: Jun 2006
Location: Canton, MI

Posts: 13,744
iTrader: (1)

Quote:
Originally Posted by adamr View Post
yup had this happened to me as well today, under intense breaking, it just ignored my downshift on the paddles ... no ABS
Question for you both: is the effect the same in all DSC modes: On, Off, and MDM?
__________________
A gen-u-ine BMW eff-eight-zero with them tandem clutches in the transmission and that dad gum sun roof on the top-a da cawr.
mkoesel is offline   United_States
0
Reply With Quote
      09-25-2008, 01:20 AM   #75
swamp2
Lieutenant General
 
swamp2's Avatar
 
Drives: E92 M3
Join Date: Sep 2006
Location: San Diego, CA USA

Posts: 10,201
iTrader: (1)

Another delay. My SA said he does have a M-DCT software update but that it will NOT correct "all" of the current known glitches. He also stated that there will be an update available "online" within a month that will correct all of the glitches. Oh well better late than never. Good for me I guess being too busy for any track time.
swamp2 is offline   United_States
0
Reply With Quote
      09-25-2008, 07:21 AM   #76
AZ-BMW
Captain
 
AZ-BMW's Avatar
 
Drives: 2009 M3 E93 w/DCT
Join Date: Mar 2007
Location: Sunny, Warm AZ

Posts: 966
iTrader: (0)

Does anyone with a MY 2009 DCT have this problem?

My car is a Wk 36 Build that is somewhere in the Atlantic and I wonder if BMWAG has fixed it in the new MY cars, but is struggling to create an acceptable SIB
__________________

2009 AW M3 E93 - Black Novillo|DCT|ZTP|ZPP|752 Enh Audio|4UT|Heated Seats|6FL|6NF|
For jpg's: http://www.m3post.com/forums/showthr...=186382&page=4
Traded: 2007 335i E93
AZ-BMW is offline   United_States
0
Reply With Quote
      09-25-2008, 08:47 AM   #77
Captain Scott
Second Lieutenant
 
Drives: 09 E92
Join Date: Jul 2008
Location: St Paul MN

Posts: 251
iTrader: (0)

My new 09 is due to dock tomorrow in Charleston, can anyone find out if the new cars are subject to the software update? or do you think the update came pre installed as an 09.

Scott
Captain Scott is offline  
0
Reply With Quote
      09-26-2008, 01:54 PM   #78
MarksM
Dishonorable Discharged
 
Drives: 08 M3 replaced with 11 M3
Join Date: Jun 2008
Location: Is it safe?

Posts: 97
iTrader: (0)

UPDATE

UPDATE

Talked to Service at SDBMW today and was told that update would now not be available until OCT/NOV THIS is NOT the way to treat early buyers (Maybe they are waiting for a Bail Out plan. I am now looking for mine.)
MarksM is offline   No_Country
0
Reply With Quote
      09-26-2008, 01:57 PM   #79
sfbimmer13
Original Bavarian Heritage
 
sfbimmer13's Avatar
 
Drives: 2008 E92 M3 DCT
Join Date: Jun 2008
Location: San Francisco

Posts: 354
iTrader: (0)

Quote:
Originally Posted by MarksM View Post
UPDATE

Talked to Service at SDBMW today and was told that update would now not be available until OCT/NOV THIS is NOT the way to treat early buyers (Maybe they are waiting for a Bail Out plan. I am now looking for mine.)
that plain and simply sucks - I have to think about canceling my remaining track days for now and wait until BMW fixes the problem...really starting to get pissed off big time, since I can't use the car for what it was intended to be used for
__________________
--------------------------------------------------------------------------------------------------------------
2008 E92 M3 M-DCT - Sparkling Graphite - Fox Red - Tech Package - Premium Package - Moonroof - Enhanced Premium Sound - HD Radio - iPod USB interface - PDC - Remus Race Exhaust
sfbimmer13 is offline   United_States
0
Reply With Quote
      09-26-2008, 02:31 PM   #80
swiss_cornholio
First Lieutenant
 
swiss_cornholio's Avatar
 
Drives: E92 DTC M3 (AW/PS)
Join Date: Mar 2007
Location: Zurich, Switzerland

Posts: 379
iTrader: (0)

Quote:
Originally Posted by sfbimmer13 View Post
that plain and simply sucks - I have to think about canceling my remaining track days for now and wait until BMW fixes the problem...really starting to get pissed off big time, since I can't use the car for what it was intended to be used for
kinda off topic, but have you ever tried a lap in D mode?
swiss_cornholio is offline   Switzerland
0
Reply With Quote
      09-26-2008, 02:34 PM   #81
MarksM
Dishonorable Discharged
 
Drives: 08 M3 replaced with 11 M3
Join Date: Jun 2008
Location: Is it safe?

Posts: 97
iTrader: (0)

Quote:
Originally Posted by swiss_cornholio View Post
kinda off topic, but have you ever tried a lap in D mode?
Guess you don't drive on the track much, huh?
MarksM is offline   No_Country
0
Reply With Quote
      09-26-2008, 02:46 PM   #82
swiss_cornholio
First Lieutenant
 
swiss_cornholio's Avatar
 
Drives: E92 DTC M3 (AW/PS)
Join Date: Mar 2007
Location: Zurich, Switzerland

Posts: 379
iTrader: (0)

Quote:
Originally Posted by MarksM View Post
Guess you don't drive on the track much, huh?
I do, and so far I thought it woud be a wasted lap if driven in D, but I'm still interested in how it would work.
swiss_cornholio is offline   Switzerland
0
Reply With Quote
      09-26-2008, 03:24 PM   #83
sfbimmer13
Original Bavarian Heritage
 
sfbimmer13's Avatar
 
Drives: 2008 E92 M3 DCT
Join Date: Jun 2008
Location: San Francisco

Posts: 354
iTrader: (0)

Quote:
Originally Posted by swiss_cornholio View Post
kinda off topic, but have you ever tried a lap in D mode?
D Mode?? what is D Mode...just kidding I am only using D Mode in very dense stop and go traffic and even than I hate it...I will certainly not try it on a track...I just want BMW to fix the downshift problem
__________________
--------------------------------------------------------------------------------------------------------------
2008 E92 M3 M-DCT - Sparkling Graphite - Fox Red - Tech Package - Premium Package - Moonroof - Enhanced Premium Sound - HD Radio - iPod USB interface - PDC - Remus Race Exhaust
sfbimmer13 is offline   United_States
0
Reply With Quote
      09-26-2008, 03:35 PM   #84
adamr
Major
 
adamr's Avatar
 
Drives: 997 GT3 RS
Join Date: Dec 2006
Location: Johannesburg

Posts: 1,032
iTrader: (0)

Garage List
Quote:
Originally Posted by mkoesel View Post
Question for you both: is the effect the same in all DSC modes: On, Off, and MDM?
DSC was on ...
__________________


2007 Porsche 997 GT3 RS
|PCM with NAV and GSM|Roll Cage|PCCB|Xenons|Sports Chrono Plus|PASM|Leather Pack|Silver Seat-belts|
adamr is offline   South Africa
0
Reply With Quote
      09-26-2008, 03:41 PM   #85
BarryC
Major
 
Drives: '13 LRP M3
Join Date: May 2007
Location: Kernersville NC

Posts: 1,160
iTrader: (10)

Quote:
Originally Posted by sfbimmer13 View Post
D Mode?? what is D Mode...just kidding I am only using D Mode in very dense stop and go traffic and even than I hate it...I will certainly not try it on a track...I just want BMW to fix the downshift problem
BTW, C&D said they got their fastest lap times in D mode due to the lack of downshift in the manual mode. The car will downshift faster (if you include the time lost due to a lack of downshift) in D mode vs. manual mode.

So the car can do a frickin' downshift - just got to get the software right!

BC
BarryC is offline   United_States
0
Reply With Quote
      09-26-2008, 03:52 PM   #86
Socale92
DCT Test Pilot
 
Drives: ????
Join Date: Apr 2008
Location: los angeles

Posts: 558
iTrader: (1)

center and beverly hills bmw service depts. are completely unaware of any software update for dct....
Socale92 is offline  
0
Reply With Quote
      09-26-2008, 03:59 PM   #87
apw2607
Major
 
Drives: 2009 X5 35d
Join Date: Apr 2006
Location: Seattle, WA, USA

Posts: 1,428
iTrader: (0)

I just checked BMW TIS and there is nothing new listed for the M-DCT since the fluid replacement fiasco.

Checking Progman, version 31.1 is the latest release, but it doesn't tell me when it was released. It looks like it is applicable to the E90.91.92.and 93.
apw2607 is offline  
0
Reply With Quote
      09-26-2008, 05:24 PM   #88
apw2607
Major
 
Drives: 2009 X5 35d
Join Date: Apr 2006
Location: Seattle, WA, USA

Posts: 1,428
iTrader: (0)

Quote:
Originally Posted by GT3 Tim View Post
I know one of them is the BMW Assist Module, which I do not have. lol I thnk there is another one...and don't recall wtf it is at the moment. Maybe one of the guys with the nice schematics will chime in with a sweet diagram attachment of the trunk modules.
Under the trunk mat is the Telematics Control Unit (TCU) and the Sirius Satellite Radio Tuner (if optioned)

In the left of the trunk is Audio amp, HD Radio Tuner and CD Changer (again if optioned).
apw2607 is offline  
0
Reply With Quote
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
Forum Jump


All times are GMT -5. The time now is 10:24 AM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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