DCT E90 M3

lauz · 05-06-2022, 01:10 PM

hello

BMw dealer changed the DC oil and all filters and the pan and, since that time, I have an intermitent problem as, the car start but when I want to put on D or R, there is nothing happening and, this error message comes. Sometimes, we close the engine and restart and, all is good to go.

the dealer has the car but cannot find the problem. Any idea ?

I had this car for 4 months without any problem and suddenly after the job, the problem have started.

I have a feeling its the mecanical lock that is not totally actived or desactivated and/or the sensor that send a message to the computer.

However, the dispay say that we can continue to drive... but, the car is on PARK.

Helmsman · 05-07-2022, 12:58 PM

DCT fluid service doesn't involve touching sw or control. Bloody irritating if the box worked fine prior service. And the dealer claim they touched nothing except for the pan/filter?

lauz · 05-07-2022, 05:27 PM

It seems as the problem has been found. A ground between the transmission and the chassis was loose. He had to drop the transmission a little bit to change the gasket at the top. It seems this fixed the problem. Did not know the ground was so important for a car,,,��

bigjae1976 · 05-08-2022, 10:50 AM

Quote:

Originally Posted by lauz

It seems as the problem has been found. A ground between the transmission and the chassis was loose. He had to drop the transmission a little bit to change the gasket at the top. It seems this fixed the problem. Did not know the ground was so important for a car,,,��

Grounds are critical. Bad grounds add resistance and voltage drops. Electronics will not work properly, heat up and could fail.

Maintaining the correct voltage is extremely important

amrazM · 05-09-2022, 05:19 AM

Mechatronics is on the way out.

lauz · 05-09-2022, 01:15 PM

At 48 000 km ? Dont think so

amrazM · 05-10-2022, 05:02 AM

Quote:

Originally Posted by lauz

At 48 000 km ? Dont think so

there arent any serviceable sensors on the mdct, its just the gearbox and the gearshifter. it sounds like you have a mechatronics that isnt responding.

you can try to update the sw on the mechatronics and go from there, you need a professional tool to diagnose the issue. cant guess on the internet.

spammysammich · 05-11-2022, 02:26 AM

Did reconnecting a loose ground fix the issue or not? I'm confused why we're still talking about this.

05-06-2022, 01:10 PM	#1
lauz Private 49 Rep 97 Posts Drives: bmw z4m Join Date: Jul 2020 Location: quebec iTrader: (1)	DCT E90 M3 - 2011 oil and Pan change and problem hello BMw dealer changed the DC oil and all filters and the pan and, since that time, I have an intermitent problem as, the car start but when I want to put on D or R, there is nothing happening and, this error message comes. Sometimes, we close the engine and restart and, all is good to go. the dealer has the car but cannot find the problem. Any idea ? I had this car for 4 months without any problem and suddenly after the job, the problem have started. I have a feeling its the mecanical lock that is not totally actived or desactivated and/or the sensor that send a message to the computer. However, the dispay say that we can continue to drive... but, the car is on PARK.
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05-07-2022, 12:58 PM	#2
Helmsman Major General 4465 Rep 7,109 Posts Drives: 2011 AW E90 M3 ZCP Join Date: Mar 2014 Location: Stockholm, Sweden iTrader: (0)	DCT fluid service doesn't involve touching sw or control. Bloody irritating if the box worked fine prior service. And the dealer claim they touched nothing except for the pan/filter?
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05-07-2022, 05:27 PM	#3
lauz Private 49 Rep 97 Posts Drives: bmw z4m Join Date: Jul 2020 Location: quebec iTrader: (1)	It seems as the problem has been found. A ground between the transmission and the chassis was loose. He had to drop the transmission a little bit to change the gasket at the top. It seems this fixed the problem. Did not know the ground was so important for a car,,,��
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05-09-2022, 05:19 AM	#5
amrazM mTekMods 2139 Rep 2,898 Posts Drives: like a granny. Join Date: Jan 2010 Location: Manhatan iTrader: (1)	Mechatronics is on the way out. __________________ 2011 Frozen Black/Fox Red E90 M3 650+WHP G-Power Supercharged First DCT to Manual Conversion Worldwide KW CS, BBS RI-A, BW Headers, Snow 2.5
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05-09-2022, 01:15 PM	#6
lauz Private 49 Rep 97 Posts Drives: bmw z4m Join Date: Jul 2020 Location: quebec iTrader: (1)	At 48 000 km ? Dont think so
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05-11-2022, 02:26 AM	#8
spammysammich Major 1581 Rep 1,102 Posts Drives: 2009 E92 M3 Dakar Yellow II Join Date: Oct 2021 Location: Edmonds, WA iTrader: (0) Garage List 2009 BMW M3 [10.00]	Did reconnecting a loose ground fix the issue or not? I'm confused why we're still talking about this.
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