Count down (up) to M-DCT Software Upgrade

marwan · 10-01-2008, 06:19 AM

Quote:

Originally Posted by AZ-BMW

Please look on your service receipt and tell us the SIB number listed on it. Or better yet, just post a copy of your service receipt.

is SIB the version number?

Patricius · 10-01-2008, 06:27 AM

Quote:

Originally Posted by marwan

is SIB the version number?

Service Information Bulletin. Basically an update to your car that isn't as necessary or urgent as a recall.

Jangobipbip · 10-01-2008, 07:29 AM

Sorry but don't have it...as it's been done under warranty, i don't have any document except the repair order.

But i know that the bmw garage has done one, he told it to me when i was there...

ersin · 10-01-2008, 08:52 AM

Quote:

Originally Posted by Sticky

In D5, flooring it out of first, it won't shift at redline in first gear, it shifts way early.

I'm wondering if maybe it really is shifting at redline but what you are seeing is just tachometer lag. I don't have a DCT car (yet) but I recall how fast the revs built in first gear with my '02 M3 SMG II car. It hit redline extremely quickly. Does it really feel like it's not at redline when it shifts?

GT3 Tim · 10-01-2008, 09:34 AM

Quote:

Originally Posted by swamp2

We need a summary of known M-DCT issues, "moderated" by those of us "in the know". I am sticking to issues that have been reported by reputable members with verification from others. I thought about making a separate thread for this but let's just get these down right here in one place for now. Not sure if I will edit this post or make new posts.

Temporary loss of power at low (speed+gear+rpm) which happens just after some throttle "indecisiveness".
Infrequent ignored upshifts.
Engine stalling during take off.
Ignored downshifts during on limit braking.
Shifts from 2->6 and 3->7 in S mode occuring without shift requests during on limit cornering.

I am sticking to clear bugs here and personally do not consider the following to be part of this list above:

Delay between paddle actuation and begining of clutch operation
Low throttle sensitivity during low to moderate acceleration take off

I also had the power loss issue at full throttle right after shifting into 2nd. This is NOT a traction control issue. This was in S6 and under full throttle...as soon as the car hits 2nd, I loose all power for 3-5 seconds.

Also, I have had the skipping gears on the upshift issue. But not 2 - 6, just skips 2nd gear. Car goes from 1 - 3. I have been able to repeat it and it is not me double tapping the paddle.

apw2607 · 10-01-2008, 12:38 PM

Quote:

Originally Posted by swamp2

We need a summary of known M-DCT issues, "moderated" by those of us "in the know". I am sticking to issues that have been reported by reputable members with verification from others. I thought about making a separate thread for this but let's just get these down right here in one place for now. Not sure if I will edit this post or make new posts.

Temporary loss of power at low (speed+gear+rpm) which happens just after some throttle "indecisiveness".
Infrequent ignored upshifts.
Engine stalling during take off.
Ignored downshifts during on limit braking.
Shifts from 2->6 and 3->7 in S mode occuring without shift requests during on limit cornering.

I am sticking to clear bugs here and personally do not consider the following to be part of this list above:

Delay between paddle actuation and begining of clutch operation
Low throttle sensitivity during low to moderate acceleration take off

Swamp, I reported a issue with upshifts being ignored with the paddles. BMW have since changed my paddles, and I can report I no longer have any more issues with upshifts being ignored (at least for that use case).

apw2607 · 10-01-2008, 12:41 PM

Quote:

Originally Posted by Patricius

Service Information Bulletin. Basically an update to your car that isn't as necessary or urgent as a recall.

I can tell you the according to BMW TIS, there is no new SIBs for the DKG as of Friday ....

Its possible BMW France are using a different system, and the SIB are rolled out at different times depending on location.

BUT ... until it turns up in TIS, your USA dealer won't be able to do anything.

Sticky · 10-01-2008, 01:48 PM

Quote:

Originally Posted by ersin

I'm wondering if maybe it really is shifting at redline but what you are seeing is just tachometer lag. I don't have a DCT car (yet) but I recall how fast the revs built in first gear with my '02 M3 SMG II car. It hit redline extremely quickly. Does it really feel like it's not at redline when it shifts?

No, I mean its WAY short.

JEllis · 10-01-2008, 02:19 PM

One thing I am worried about...

I have not experienced any of these issues and I dont feel I need the upgrade. I am enjoying DCT the way it is.

Honestly I cannot help but wonder if some of you guys are experiencing paranoia.

Jason

enigma · 10-01-2008, 02:25 PM

Quote:

Originally Posted by JEllis

One thing I am worried about...

I have not experienced any of these issues and I dont feel I need the upgrade. I am enjoying DCT the way it is.

Honestly I cannot help but wonder if some of you guys are experiencing paranoia.

Jason

Yea, I fabricated the videos....

Sticky · 10-01-2008, 02:30 PM

Quote:

Originally Posted by JEllis

One thing I am worried about...

I have not experienced any of these issues and I dont feel I need the upgrade. I am enjoying DCT the way it is.

Honestly I cannot help but wonder if some of you guys are experiencing paranoia.

Jason

You have to feel the lag.

The downshifting IS an issue.

Put the car in D5, floor it from a stop in first, watch what happens.

Captain Scott · 10-02-2008, 11:23 AM

Just got off the phone with the new car sales manager. As of today, there still is not a software update available for my 08 E93 DCT, it's been sitting at the dealership for the last 2 months or so.

Hear that Tim ? Hint Hint!

Scott

GT3 Tim · 10-02-2008, 11:29 AM

Quote:

Originally Posted by Captain Scott

Just got off the phone with the new car sales manager. As of today there still is not a software update available for my my 08 E93 DCT that's been sitting at the dealership for the last 2 months or so.

Hear that Tim ? Hint Hint!

Scott

I hear it...loud and clear.

MarksM · 10-02-2008, 12:11 PM

Quote:

Originally Posted by JEllis

One thing I am worried about...

I have not experienced any of these issues and I dont feel I need the upgrade. I am enjoying DCT the way it is.

Honestly I cannot help but wonder if some of you guys are experiencing paranoia.

Jason

Comes from flying slow movers

Come for a ride and I will show you the light

enigma · 10-02-2008, 01:38 PM

Quote:

Originally Posted by MarksM

Comes from flying slow movers

Come for a ride and I will show you the light

Captain Scott · 10-02-2008, 11:14 PM

Quote:

Originally Posted by MarksM

Comes from flying slow movers

Come for a ride and I will show you the light

That's correct, doesn't he know that props are for motor boats.

I have to listen to those 130's every morning from my window.

Former fast mover driver.

swamp2 · 10-04-2008, 10:06 PM

Can anyone independently confirm the existence of the problems reported after my list of items? I believe some are isoloated to individual or a very few number of cars. If the issues can be confirmed I'll be happy to add them to the list.

ruff · 10-04-2008, 10:13 PM

Quote:

Originally Posted by swamp2

Can anyone independently confirm the existence of the problems reported after my list of items? I believe some are isoloated to individual or a very few number of cars. If the issues can be confirmed I'll be happy to add them to the list.

Tiring subject and overly pessimistic.

Androo · 10-06-2008, 04:28 PM

Hey Guys,

Have been reading this post with interest as me and a business partner got our M3's about 2 weeks ago.
On the weekend his car basically stalled going through a roundabout and nearly caused an accident. We reported it to our service guy and car was dropped off this morning (Tuesday). He mentioned they have a new software upgrade for DCT, it takes around 6 hours to complete, so I doubt we will have the car back today. They are all fully aware of the problems everyone is having.

Will keep you posted on the outcome.

MarksM · 10-06-2008, 05:09 PM

I am dropping the car off on Thurs 10/9 for a update while the BMW local rep is there. Hoping for the best because the last 8 track days have been very frustrating. I will know Thurs afternoon if it works.

uthatch · 10-06-2008, 05:28 PM

Quote:

Originally Posted by Sticky

No, I mean its WAY short.

Yeah it's below 6000 that mine shifts. You can feel the motor drop down out of the power too, it's certainly not tach lag.

I wrote about this issue a month or so ago and many people didn't believe me until they went out and tried it. The car will hold 1st in D1 or D2, but in the more aggressive settings it shifts way short.

e46e92love · 10-06-2008, 05:28 PM

Quote:

Originally Posted by MarksM

I am dropping the car off on Thurs 10/9 for a update while the BMW local rep is there. Hoping for the best because the last 8 track days have been very frustrating. I will know Thurs afternoon if it works.

I like your focus on the failure of the downshifting during threshold breaking, because this is the #1 concern of mine.

10-01-2008, 07:29 AM	#135
Jangobipbip Private First Class 155 Rep 141 Posts Drives: M3 Schirmer GT Join Date: Jul 2006 Location: France iTrader: (0)	Sorry but don't have it...as it's been done under warranty, i don't have any document except the repair order. But i know that the bmw garage has done one, he told it to me when i was there...
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10-01-2008, 02:19 PM	#141
JEllis Major General 532 Rep 5,498 Posts Drives: E36 M3, E92 M3 Join Date: Oct 2006 Location: Dallas/Ft. Worth iTrader: (4)	One thing I am worried about... I have not experienced any of these issues and I dont feel I need the upgrade. I am enjoying DCT the way it is. Honestly I cannot help but wonder if some of you guys are experiencing paranoia. Jason __________________ Instagram: jellismotorwerks
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10-02-2008, 11:23 AM	#144
Captain Scott Second Lieutenant 4 Rep 251 Posts Drives: 09 E92 Join Date: Jul 2008 Location: St Paul MN iTrader: (0)	Just got off the phone with the new car sales manager. As of today, there still is not a software update available for my 08 E93 DCT, it's been sitting at the dealership for the last 2 months or so. Hear that Tim ? Hint Hint! Scott Last edited by Captain Scott; 10-02-2008 at 11:06 PM..
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10-04-2008, 10:06 PM	#149
swamp2 Lieutenant General 609 Rep 10,407 Posts Drives: E92 M3 Join Date: Sep 2006 Location: San Diego, CA USA iTrader: (3)	Can anyone independently confirm the existence of the problems reported after my list of items? I believe some are isoloated to individual or a very few number of cars. If the issues can be confirmed I'll be happy to add them to the list.
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10-06-2008, 04:28 PM	#151
Androo Second Lieutenant 6 Rep 211 Posts Drives: M3 AW DCT Join Date: Feb 2008 Location: Melbourne Australia iTrader: (0)	Hey Guys, Have been reading this post with interest as me and a business partner got our M3's about 2 weeks ago. On the weekend his car basically stalled going through a roundabout and nearly caused an accident. We reported it to our service guy and car was dropped off this morning (Tuesday). He mentioned they have a new software upgrade for DCT, it takes around 6 hours to complete, so I doubt we will have the car back today. They are all fully aware of the problems everyone is having. Will keep you posted on the outcome.
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10-06-2008, 05:09 PM	#152
MarksM Dishonorable Discharged 100 Rep 181 Posts Drives: M3 2012, M4 GTS Sold Join Date: Jun 2008 Location: SoCal iTrader: (1)	Upgrade on Thursday (hopefully) I am dropping the car off on Thurs 10/9 for a update while the BMW local rep is there. Hoping for the best because the last 8 track days have been very frustrating. I will know Thurs afternoon if it works.
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