BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

Post Reply
 
Thread Tools Search this Thread
      08-24-2013, 11:51 PM   #1
mattryan
Captain
mattryan's Avatar
Canada
86
Rep
638
Posts

Drives: 2022 M240i xDrive
Join Date: Dec 2010
Location: Toronto, ON

iTrader: (0)

DCT Launch Control Question...

Can't seem to get it right... The owner's manual says the following:

Launch Control is ready for use when the engine is at operating temperature after uninterrupted travel of at least 6.2 miles/10 km.

1. With the engine running, step on the brake with your left foot.

2. Activate Dynamic Traction Control (DTC). Press the button; the indicator lamp for DSC OFF lights up and TRACTION is displayed in the instrument panel.

3. Activate Driving dynamics control. Press the SPORT button; the LED in the button lights up.

4. With the vehicle stationary, activate the manual mode and select 1st gear.

5. With your right foot, push the accelerator pedal past the resistance point. The engine speed for pulling away is adjusted. A flag symbol appears in the instrument cluster.

6. When you release the brake pedal, the vehicle accelerates. Keep the accelerator pedal floored.

7. The upshifting occurs automatically as long as you keep the accelerator pedal pressed past the resistance point.

Launch Control will be ready for use again after you drive a certain distance.

For step 5 and 6 after you push the accelerator pedal past the resistance point and the flag symbol appears are you suppose to release the accelerator pedal up before you release the brake pedal? I kept the accelerator pedal past the resistance point the whole time and released the brake however the car did not launch... When I let the accelerator up a bit and then released the brake I guess it did?

If anyone could please chime in it would be greatly appreciated
__________________
Current: 2022 M240i xDrive
Previous: 2018 440i xDrive, 2012 135i
Appreciate 0
      08-25-2013, 12:03 AM   #2
Dboyz321
Enlisted Member
0
Rep
40
Posts

Drives: BMW 135i
Join Date: Feb 2013
Location: Germany

iTrader: (0)

So flag came on and rpm was about 3500?
Appreciate 0
      08-25-2013, 11:36 AM   #3
CRuben09
Second Lieutenant
CRuben09's Avatar
No_Country
119
Rep
264
Posts

Drives: 2021 M3
Join Date: Dec 2012
Location: San Juan

iTrader: (0)

The car should be fully warmed up, or at least at operating temperature. Do the following:

1. Press DTC button
2. Press Sport button
3. Put the car in M1 using the paddle shifter and moving the lever to the left.
4. Press the brake and then the accelerator. A flag should be displayed in the cluster and revs should be maintained by the car at 3,500rpm ~
5. Don't release the accelerator at any point. Release the brake pedal, and off you go.


There is another type of launch control, but this one doesn't shows a flag. I discovered it one time by accident. Repeat all the steps above but fully disable traction control. The revs will go up to ~6,000 rpm and the car will launch like crazy. When you get to try it, make sure that no one is around and that you are in an open area.
__________________
2019 X3

2011 135i Alpine White DCT N55 All Stock
Built on 10/10 Proud owner since 12/12.
Appreciate 0
      08-25-2013, 12:17 PM   #4
mattryan
Captain
mattryan's Avatar
Canada
86
Rep
638
Posts

Drives: 2022 M240i xDrive
Join Date: Dec 2010
Location: Toronto, ON

iTrader: (0)

Quote:
Originally Posted by CRuben09
The car should be fully warmed up, or at least at operating temperature. Do the following:

1. Press DTC button
2. Press Sport button
3. Put the car in M1 using the paddle shifter and moving the lever to the left.
4. Press the brake and then the accelerator. A flag should be displayed in the cluster and revs should be maintained by the car at 3,500rpm ~
5. Don't release the accelerator at any point. Release the brake pedal, and off you go.


There is another type of launch control, but this one doesn't shows a flag. I discovered it one time by accident. Repeat all the steps above but fully disable traction control. The revs will go up to ~6,000 rpm and the car will launch like crazy. When you get to try it, make sure that no one is around and that you are in an open area.
Weird when I kept the accelerator completely pressed down beyond the resistance point and released the brake after the flag appeared the car would not launch
__________________
Current: 2022 M240i xDrive
Previous: 2018 440i xDrive, 2012 135i
Appreciate 0
      08-25-2013, 12:34 PM   #5
CRuben09
Second Lieutenant
CRuben09's Avatar
No_Country
119
Rep
264
Posts

Drives: 2021 M3
Join Date: Dec 2012
Location: San Juan

iTrader: (0)

Quote:
Originally Posted by mattryan
Quote:
Originally Posted by CRuben09
The car should be fully warmed up, or at least at operating temperature. Do the following:

1. Press DTC button
2. Press Sport button
3. Put the car in M1 using the paddle shifter and moving the lever to the left.
4. Press the brake and then the accelerator. A flag should be displayed in the cluster and revs should be maintained by the car at 3,500rpm ~
5. Don't release the accelerator at any point. Release the brake pedal, and off you go.


There is another type of launch control, but this one doesn't shows a flag. I discovered it one time by accident. Repeat all the steps above but fully disable traction control. The revs will go up to ~6,000 rpm and the car will launch like crazy. When you get to try it, make sure that no one is around and that you are in an open area.
Weird when I kept the accelerator completely pressed down beyond the resistance point and released the brake after the flag appeared the car would not launch
What happen when you release the brake?
__________________
2019 X3

2011 135i Alpine White DCT N55 All Stock
Built on 10/10 Proud owner since 12/12.
Appreciate 0
      08-25-2013, 01:38 PM   #6
-c-
Colonel
-c-'s Avatar
United_States
885
Rep
2,736
Posts

Drives: bmw
Join Date: May 2010
Location: Chicago

iTrader: (5)

You may need a software update for the trans as I did as my launch control was also not working correctly and mines a 2012 model
Appreciate 0
      08-25-2013, 02:06 PM   #7
mattryan
Captain
mattryan's Avatar
Canada
86
Rep
638
Posts

Drives: 2022 M240i xDrive
Join Date: Dec 2010
Location: Toronto, ON

iTrader: (0)

Quote:
Originally Posted by CRuben09 View Post
What happen when you release the brake?
it just kind of jerks a bit and doesn't really go... now if after the flag comes on and I release the accelerator up a bit where it's not pressed passed the resistance point then it will launch...
__________________
Current: 2022 M240i xDrive
Previous: 2018 440i xDrive, 2012 135i
Appreciate 0
      08-25-2013, 03:44 PM   #8
CRuben09
Second Lieutenant
CRuben09's Avatar
No_Country
119
Rep
264
Posts

Drives: 2021 M3
Join Date: Dec 2012
Location: San Juan

iTrader: (0)

Quote:
Originally Posted by mattryan
Quote:
Originally Posted by CRuben09 View Post
What happen when you release the brake?
it just kind of jerks a bit and doesn't really go... now if after the flag comes on and I release the accelerator up a bit where it's not pressed passed the resistance point then it will launch...
That's how is done. I don't press the accelerator all the way in.
__________________
2019 X3

2011 135i Alpine White DCT N55 All Stock
Built on 10/10 Proud owner since 12/12.
Appreciate 0
      08-25-2013, 09:41 PM   #9
mattryan
Captain
mattryan's Avatar
Canada
86
Rep
638
Posts

Drives: 2022 M240i xDrive
Join Date: Dec 2010
Location: Toronto, ON

iTrader: (0)

Quote:
Originally Posted by CRuben09
Quote:
Originally Posted by mattryan
Quote:
Originally Posted by CRuben09 View Post
What happen when you release the brake?
it just kind of jerks a bit and doesn't really go... now if after the flag comes on and I release the accelerator up a bit where it's not pressed passed the resistance point then it will launch...
That's how is done. I don't press the accelerator all the way in.
But don't you have to press it past the resistance point initially to get the flag to come on?
__________________
Current: 2022 M240i xDrive
Previous: 2018 440i xDrive, 2012 135i
Appreciate 0
      08-26-2013, 10:06 AM   #10
phobic
Lieutenant
phobic's Avatar
United_States
19
Rep
427
Posts

Drives: 2011 135i coupe
Join Date: Apr 2013
Location: Woburn, MA

iTrader: (3)

subscribed as Ive had this happen to me as well
__________________
Phobics Build thread
2011 135i alpine white cruising around Boston.
Appreciate 0
      08-26-2013, 11:03 AM   #11
Jettt
Gun Slinger
Canada
28
Rep
344
Posts

Drives: slow and with caution
Join Date: Mar 2013
Location: Toronto

iTrader: (0)

Follow the steps and slam the gas to the floor while holding the break... Then let go of the break

Worked fine for me.
Appreciate 0
      08-26-2013, 02:39 PM   #12
mattryan
Captain
mattryan's Avatar
Canada
86
Rep
638
Posts

Drives: 2022 M240i xDrive
Join Date: Dec 2010
Location: Toronto, ON

iTrader: (0)

Quote:
Originally Posted by Jettt View Post
Follow the steps and slam the gas to the floor while holding the break... Then let go of the break

Worked fine for me.
That's what I did but unless I release the gas pedal so that it's not beyond the resistance point before releasing the brake the car just jerks and doesn't go anywhere.
__________________
Current: 2022 M240i xDrive
Previous: 2018 440i xDrive, 2012 135i
Appreciate 0
      08-26-2013, 02:44 PM   #13
phobic
Lieutenant
phobic's Avatar
United_States
19
Rep
427
Posts

Drives: 2011 135i coupe
Join Date: Apr 2013
Location: Woburn, MA

iTrader: (3)

are you guys turning traction AND stability control off or just traction control?
__________________
Phobics Build thread
2011 135i alpine white cruising around Boston.
Appreciate 0
      08-26-2013, 03:36 PM   #14
SAM135iAM
Lieutenant
SAM135iAM's Avatar
United_States
51
Rep
403
Posts

Drives: 11' 135i DCT
Join Date: Oct 2012
Location: Dallas Texas

iTrader: (0)

This works every time for me.

1. drive around
2. come to complete stop
3. keep break pressed down with left foot
4. press dtc once
5. tap shifter over to left
6. press sport button
7. press left paddle down so you're in M1
9. press right foot on gas all the way to the floor
10. yellow flag should appear in gauge cluster
11. release break and just steer in the right direction.


I've found I have to do it in this order. If I do any one of those out of that order it will not work.
Appreciate 1
      08-26-2013, 03:43 PM   #15
mattryan
Captain
mattryan's Avatar
Canada
86
Rep
638
Posts

Drives: 2022 M240i xDrive
Join Date: Dec 2010
Location: Toronto, ON

iTrader: (0)

Quote:
Originally Posted by phobic View Post
are you guys turning traction AND stability control off or just traction control?
?
__________________
Current: 2022 M240i xDrive
Previous: 2018 440i xDrive, 2012 135i
Appreciate 0
      08-26-2013, 03:44 PM   #16
phobic
Lieutenant
phobic's Avatar
United_States
19
Rep
427
Posts

Drives: 2011 135i coupe
Join Date: Apr 2013
Location: Woburn, MA

iTrader: (3)

Quote:
Originally Posted by mattryan View Post
?
push the traction control button once: turns off traction control

push AND HOLD the button: turns off trac and stability
__________________
Phobics Build thread
2011 135i alpine white cruising around Boston.
Appreciate 0
      08-26-2013, 03:44 PM   #17
mattryan
Captain
mattryan's Avatar
Canada
86
Rep
638
Posts

Drives: 2022 M240i xDrive
Join Date: Dec 2010
Location: Toronto, ON

iTrader: (0)

Quote:
Originally Posted by SAM135iAM View Post
This works every time for me.

1. drive around
2. come to complete stop
3. keep break pressed down with left foot
4. press dtc once
5. tap shifter over to left
6. press sport button
7. press left paddle down so you're in M1
9. press right foot on gas all the way to the floor
10. yellow flag should appear in gauge cluster
11. release break and just steer in the right direction.


I've found I have to do it in this order. If I do any one of those out of that order it will not work.
Do you press the gas pedal beyond where it clicks?
__________________
Current: 2022 M240i xDrive
Previous: 2018 440i xDrive, 2012 135i
Appreciate 0
      08-26-2013, 03:45 PM   #18
mattryan
Captain
mattryan's Avatar
Canada
86
Rep
638
Posts

Drives: 2022 M240i xDrive
Join Date: Dec 2010
Location: Toronto, ON

iTrader: (0)

Quote:
Originally Posted by phobic View Post
push the traction control button once: turns off traction control

push AND HOLD the button: turns off trac and stability
Are you suppose to press it once or press and hold it? I just pressed it once. The flag comes on but it just doesn't go...
__________________
Current: 2022 M240i xDrive
Previous: 2018 440i xDrive, 2012 135i
Appreciate 0
      08-26-2013, 03:51 PM   #19
SAM135iAM
Lieutenant
SAM135iAM's Avatar
United_States
51
Rep
403
Posts

Drives: 11' 135i DCT
Join Date: Oct 2012
Location: Dallas Texas

iTrader: (0)

Quote:
Originally Posted by mattryan View Post
Do you press the gas pedal beyond where it clicks?

Yes! Press all the way to the floor and hold it!
Appreciate 0
      08-26-2013, 03:52 PM   #20
SAM135iAM
Lieutenant
SAM135iAM's Avatar
United_States
51
Rep
403
Posts

Drives: 11' 135i DCT
Join Date: Oct 2012
Location: Dallas Texas

iTrader: (0)

Quote:
Originally Posted by mattryan View Post
Are you suppose to press it once or press and hold it? I just pressed it once. The flag comes on but it just doesn't go...
Just press the dtc button once. Do not press and hold it.
Appreciate 0
      08-26-2013, 03:53 PM   #21
mattryan
Captain
mattryan's Avatar
Canada
86
Rep
638
Posts

Drives: 2022 M240i xDrive
Join Date: Dec 2010
Location: Toronto, ON

iTrader: (0)

Quote:
Originally Posted by SAM135iAM View Post
Yes! Press all the way to the floor and hold it!
That's what I did and when I released the brake it just jerks and doesn't launch...
__________________
Current: 2022 M240i xDrive
Previous: 2018 440i xDrive, 2012 135i
Appreciate 0
      08-26-2013, 03:54 PM   #22
mattryan
Captain
mattryan's Avatar
Canada
86
Rep
638
Posts

Drives: 2022 M240i xDrive
Join Date: Dec 2010
Location: Toronto, ON

iTrader: (0)

Quote:
Originally Posted by SAM135iAM View Post
Just press the dtc button once. Do not press and hold it.
Ok that's what I did - pressed it once... did not hold it.
__________________
Current: 2022 M240i xDrive
Previous: 2018 440i xDrive, 2012 135i
Appreciate 0
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



All times are GMT -5. The time now is 02:19 AM.




1addicts
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