DCT overheating!!

JuniorM3 · 12-25-2008, 09:20 AM

Fuck! my DCT keeps overheating. I get warnings on the dash!

When I pull up hard and brake for a traffic light and pull up hard again I often lose power together with the overheating error.

It also happens when i try to use my Launch control (witch I think is a peace of shit, allmost as bad as on the E46 M3, F1 technology my ass!)

I gave my dealer hell and they moved some people around. They'll take a look @ it on the 7th.

I had the probelm twice during brake in. I thought that it was just a saftey setting. During brake in I had a wet trackday and had no probs. After my 2K service it all went bad. I think something went wrong with changing the GB oil.

Anybody got some experience with this?

Merry Xmas btw

satinghostrider · 12-25-2008, 11:45 AM

Looks like a wrong gearbox oil change which has been a very common mistake. Check ur post 1200mile service report.

sard · 12-25-2008, 11:25 PM

Maybe you have problems because you did your 1200 mile service at 2000 miles.

JMD0977 · 12-25-2008, 11:40 PM

Quote:

Originally Posted by sard

Maybe you have problems because you did your 1200 mile service at 2000 miles.

He said 2k as in kilometers = 1200 miles.
It wouldn't make a difference even if it was 2000 miles since the DCT fluid is not supposed to be changed.

sard · 12-26-2008, 04:16 AM

My bad, but how bout taking your car out on the track during the break in?

KonigsTiger · 12-26-2008, 12:18 PM

Quote:

Originally Posted by JuniorM3

Fuck! my DCT keeps overheating. I get warnings on the dash!

When I pull up hard and brake for a traffic light and pull up hard again I often lose power together with the overheating error.

It also happens when i try to use my Launch control (witch I think is a peace of shit, allmost as bad as on the E46 M3, F1 technology my ass!)

I gave my dealer hell and they moved some people around. They'll take a look @ it on the 7th.

I had the probelm twice during brake in. I thought that it was just a saftey setting. During brake in I had a wet trackday and had no probs. After my 2K service it all went bad. I think something went wrong with changing the GB oil.

Anybody got some experience with this?

Merry Xmas btw

Haven´t heard this from many others, hope you work it out!

camaross305 · 12-27-2008, 12:03 AM

i think the dealer put in the wrong oil....

JuniorM3 · 12-27-2008, 09:52 AM

Had the error again today. On the dash it said something like: Gearbox overheated, Avoid hard accelertion and then driving slow and/or stoping. If this error displays frequent please visit your dealer

icemang17 · 12-27-2008, 11:07 AM

This is odd....especially since its cold where you are....

I have only had an overheat warning once..& that was after back to back launch controls....even spending a whole day at the track in 90'F heat it never overheated..... I'm guessing the sensor that reads the temp of the tranny is bad

JuniorM3 · 01-06-2009, 04:52 PM

I have a appointment with the dealer tomorrow....they never had the error before.
Hope this doesn't turn in to a long nasty story.

Friday i'm heading of to Switserland for some skiing. It's a 1200Km drive with

AUTOBAHN stretches

. So i don't want any F-in' errors!!!

I'll post what the dealer found out...

aus · 01-06-2009, 07:07 PM

Like other's have said, look on you 1200 mile service report. If they changed the tanny oil... get ready for a new tranny.

JuniorM3 · 01-07-2009, 10:43 AM

Ok

....there is a broken valve in the GB or it's not fuctioning right. They couldn't tell.
According to the chief mec. i'm the first in the world with this prob.

They could not tell me what the part name was of the valve or any extra info.
they'll call me tomorrow when the have spoken to BMW Germany.

Prob gonna be a new tranny.

D1911 · 01-07-2009, 02:58 PM

I just looked at your Location under your user name and it says Ethiopia HAHA!!

Anyways, sucks about the tranny. Keep us updated.

JMD0977 · 01-07-2009, 08:20 PM

Quote:

Originally Posted by JuniorM3

Fuck! my DCT keeps overheating. I get warnings on the dash!

When I pull up hard and brake for a traffic light and pull up hard again I often lose power together with the overheating error.

It also happens when i try to use my Launch control (witch I think is a peace of shit, allmost as bad as on the E46 M3, F1 technology my ass!)

I gave my dealer hell and they moved some people around. They'll take a look @ it on the 7th.

I had the probelm twice during brake in. I thought that it was just a saftey setting. During brake in I had a wet trackday and had no probs. After my 2K service it all went bad. I think something went wrong with changing the GB oil.

Anybody got some experience with this?

Merry Xmas btw

You had started a different thread http://www.m3post.com/forums/showthread.php?t=196106 aday after this thread,where you were messing with the rev limiter software and it conflicted with the DCT software because you guys used MT ECU software instead of DCT software. And you dont think this has anything to do with each other?
Im sure you DCT was working perfectly before that experiment.

CodeRed · 01-07-2009, 08:27 PM

Glad I got a 6MT

gr8000 · 01-08-2009, 05:24 AM

Quote:

Originally Posted by JMD0977

You had started a different thread http://www.m3post.com/forums/showthread.php?t=196106 aday after this thread,where you were messing with the rev limiter software and it conflicted with the DCT software because you guys used MT ECU software instead of DCT software. And you dont think this has anything to do with each other?
Im sure you DCT was working perfectly before that experiment.

That sounds as a pretty serious issue to me...

JuniorM3 · 01-08-2009, 07:42 AM

Quote:

Originally Posted by JMD0977

You had started a different thread http://www.m3post.com/forums/showthread.php?t=196106 aday after this thread,where you were messing with the rev limiter software and it conflicted with the DCT software because you guys used MT ECU software instead of DCT software. And you dont think this has anything to do with each other?
Im sure you DCT was working perfectly before that experiment.

I allready had the error before i got the ecu mod so i Know it doesn't have anything to do with each other....

...so why move the thread?....

mkoesel · 01-08-2009, 08:00 AM

Quote:

Originally Posted by JuniorM3

I had the probelm twice during brake in. I thought that it was just a saftey setting. During brake in I had a wet trackday and had no probs. After my 2K service it all went bad.

Its surprising to hear that you took the car to a the track during break-in. Did you drive it hard? I realize some people believe in the "hard break-in", but that seems a bit over the top. Not that this necessarily has anything to do with your issue.

Quote:

I think something went wrong with changing the GB oil.

The gearbox oil should not have been changed at all! If it was, they probably f**ked up and gave you the wrong oil, and you will definitely need a new tranny if that is the case.

Doesn't explain why you also got the errors before the post break-in service though.

mkoesel · 01-08-2009, 08:07 AM

Quote:

Originally Posted by JMD0977

You had started a different thread http://www.m3post.com/forums/showthread.php?t=196106...

Wow, that's quite the balls-y mod if I do say so myself.

Here's the part I am confused by, OP: if your tuner has the connections to BMW to get this custom software, and has the wherewithal to be tinkering with such low level functions of the car, wouldn't he also be able to help diagnose the issues going on with your transmission? If not then, wow, it doesn't really seem like it was such a good idea to let him go messing with the car to begin with, IMHO.

MysticBlue · 01-08-2009, 10:34 AM

Quote:

Originally Posted by CodeRed

Glad I got a 6MT

I'm glad I got a DCT. It's better than yours, and it has worked perfectly for me.

PocketRocket · 01-08-2009, 10:39 AM

Quote:

Originally Posted by JMD0977

You had started a different thread http://www.m3post.com/forums/showthread.php?t=196106 aday after this thread,where you were messing with the rev limiter software and it conflicted with the DCT software because you guys used MT ECU software instead of DCT software. And you dont think this has anything to do with each other?
Im sure you DCT was working perfectly before that experiment.

looks like Junior is BUSTED!

Hans Delbruck · 01-08-2009, 02:14 PM

Quote:

Originally Posted by PocketRocket

looks like Junior is BUSTED!

OP, you do realize are the one giving BMW a bad name when you post threads like "DCT overheating!" when YOU are the one who FARKED IT UP WITH BOGUS SOFTWARE experiments.

WTF, even BMW is still perfecting DCT. They have the best engineers in the world, and you think your little tuner shop is going to further "develop" DCT? You have some growing up to do, Junior. No way should BMW do warranty work on your tranny.

12-25-2008, 09:20 AM	#1
JuniorM3 Captain 134 Rep 204 Posts Drives: BMW F13 M6 CP GT3 Join Date: Dec 2008 Location: Ethiopia iTrader: (0)	DCT overheating!! Fuck! my DCT keeps overheating. I get warnings on the dash! When I pull up hard and brake for a traffic light and pull up hard again I often lose power together with the overheating error. It also happens when i try to use my Launch control (witch I think is a peace of shit, allmost as bad as on the E46 M3, F1 technology my ass!) I gave my dealer hell and they moved some people around. They'll take a look @ it on the 7th. I had the probelm twice during brake in. I thought that it was just a saftey setting. During brake in I had a wet trackday and had no probs. After my 2K service it all went bad. I think something went wrong with changing the GB oil. Anybody got some experience with this? Merry Xmas btw
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12-25-2008, 11:45 AM	#2
satinghostrider Major 178 Rep 1,432 Posts Drives: 2018 F80 M3 ZCP LCI II Join Date: Jan 2007 Location: Singapore iTrader: (1)	Looks like a wrong gearbox oil change which has been a very common mistake. Check ur post 1200mile service report. __________________ 2018 F80 LCI II ZCP ///M3 Mineral White M-DCT\| Sakhir Orange Interior\| \|M Performance Exhaust\|
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12-25-2008, 11:25 PM	#3
sard Major 235 Rep 1,334 Posts Drives: 2008 M3 Join Date: Oct 2008 Location: Southern California iTrader: (1)	Maybe you have problems because you did your 1200 mile service at 2000 miles.
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12-26-2008, 04:16 AM	#5
sard Major 235 Rep 1,334 Posts Drives: 2008 M3 Join Date: Oct 2008 Location: Southern California iTrader: (1)	My bad, but how bout taking your car out on the track during the break in?
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12-27-2008, 12:03 AM	#7
camaross305 135 Rep 1,825 Posts Drives: 2008 M3 Join Date: Jul 2008 Location: gainesville fl iTrader: (20)	i think the dealer put in the wrong oil.... __________________ The original Hid angel eyes for sale now on ebay User name lmims526894rou Or contact me at chrism9551@aol.com
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12-27-2008, 09:52 AM	#8
JuniorM3 Captain 134 Rep 204 Posts Drives: BMW F13 M6 CP GT3 Join Date: Dec 2008 Location: Ethiopia iTrader: (0)	Had the error again today. On the dash it said something like: Gearbox overheated, Avoid hard accelertion and then driving slow and/or stoping. If this error displays frequent please visit your dealer
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12-27-2008, 11:07 AM	#9
icemang17 Captain 41 Rep 644 Posts Drives: 2008 E92 M3 DCT Join Date: May 2008 Location: Stockton CA iTrader: (0)	This is odd....especially since its cold where you are.... I have only had an overheat warning once..& that was after back to back launch controls....even spending a whole day at the track in 90'F heat it never overheated..... I'm guessing the sensor that reads the temp of the tranny is bad __________________ Brian 2008 E92 M3, MR, DCT, extended BB leather, loaded! 1988 Porsche 928S4, Guards red/Champagne leather 1989 Porsche 928S4 track beast!!!
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01-06-2009, 04:52 PM	#10
JuniorM3 Captain 134 Rep 204 Posts Drives: BMW F13 M6 CP GT3 Join Date: Dec 2008 Location: Ethiopia iTrader: (0)	I have a appointment with the dealer tomorrow....they never had the error before. Hope this doesn't turn in to a long nasty story. Friday i'm heading of to Switserland for some skiing. It's a 1200Km drive with AUTOBAHN stretches. So i don't want any F-in' errors!!! I'll post what the dealer found out...
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01-06-2009, 07:07 PM	#11
aus Major General 892 Rep 9,032 Posts Drives: Odysse Join Date: Jul 2005 Location: Seal Beach, CA iTrader: (10)	Like other's have said, look on you 1200 mile service report. If they changed the tanny oil... get ready for a new tranny. __________________ Let me get this straight... You are swapping out parts designed by some of the top engineers in the world because some guys sponsored by a company told you it's "better??" But when you ask the same guy about tracking, "oh no, I have a kid now" or "I just detailed my car." or "i just got new tires."
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01-07-2009, 10:43 AM	#12
JuniorM3 Captain 134 Rep 204 Posts Drives: BMW F13 M6 CP GT3 Join Date: Dec 2008 Location: Ethiopia iTrader: (0)	Ok ....there is a broken valve in the GB or it's not fuctioning right. They couldn't tell. According to the chief mec. i'm the first in the world with this prob. They could not tell me what the part name was of the valve or any extra info. they'll call me tomorrow when the have spoken to BMW Germany. Prob gonna be a new tranny.
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01-07-2009, 02:58 PM	#13
D1911 Private First Class 32 Rep 116 Posts Drives: 08 S2k Join Date: Dec 2008 Location: Canada iTrader: (0)	I just looked at your Location under your user name and it says Ethiopia HAHA!! Anyways, sucks about the tranny. Keep us updated.
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01-07-2009, 08:27 PM	#15
CodeRed Private First Class 7 Rep 152 Posts Drives: '08 E90 & 67 Alfa GTV Join Date: Oct 2008 Location: God's country iTrader: (3)	Glad I got a 6MT
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