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      05-22-2016, 12:45 PM   #1
Pyrat 2
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Anyone else noticing that there DCT is laggy and slow to respond. My comparison is to a 135is which also had an n55 and basically the same trans other than the software. That trans was absolutely telepathic in D anticipating what gear I wanted. Also lightning fast and firm on the shifts. The M2 in comparison is not any of this. Since it's the same trans underneath it can be fixed with software if BMW sees fit to do so. I had an option of taking my HEA M2 as is with the DCT or waiting. Since I thought the DCT in my 1 was good I figured it would be the same so took the HEA. It's not. If they don't fix it I'll be in the camp of wanting the manual.
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      05-22-2016, 01:58 PM   #2
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Not in my car... Do not have that feeling at all.

MR
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      05-22-2016, 02:48 PM   #3
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Originally Posted by MR.
Not in my car... Do not have that feeling at all.

MR
Hmm. Most of my complaints are in D. Still true? For example, I can be hard on the throttle and if I blip the throttle back just a bit for a moment and then back into it the car won't shift up. On my 135is it took that as a queue that I wanted to upshift and not wait until 7k which is out of both the torque and horsepower curve.
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      05-22-2016, 03:57 PM   #4
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Originally Posted by Pyrat 2 View Post
Hmm. Most of my complaints are in D. Still true? For example, I can be hard on the throttle and if I blip the throttle back just a bit for a moment and then back into it the car won't shift up. On my 135is it took that as a queue that I wanted to upshift and not wait until 7k which is out of both the torque and horsepower curve.
I would need to try that when I am back with the car later this week. I hardly use D, only during the running in time but at that time I was not allowed to go higher than 5,5K.

I use the paddle shifters behind the wheel constantly the last few days and it goes into Sport mode immediately when I enter the car. Does Sport or comfort make any difference for you?

MR
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      05-22-2016, 04:11 PM   #5
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Quote:
Originally Posted by MR.
Quote:
Originally Posted by Pyrat 2 View Post
Hmm. Most of my complaints are in D. Still true? For example, I can be hard on the throttle and if I blip the throttle back just a bit for a moment and then back into it the car won't shift up. On my 135is it took that as a queue that I wanted to upshift and not wait until 7k which is out of both the torque and horsepower curve.
I would need to try that when I am back with the car later this week. I hardly use D, only during the running in time but at that time I was not allowed to go higher than 5,5K.

I use the paddle shifters behind the wheel constantly the last few days and it goes into Sport mode immediately when I enter the car. Does Sport or comfort make any difference for you?

MR
Does it go into sport by itself??? Or you put it in when you get in. Comfort is very bad and sport is marginally better.
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      05-23-2016, 12:42 AM   #6
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Originally Posted by Pyrat 2 View Post
Does it go into sport by itself??? Or you put it in when you get in. Comfort is very bad and sport is marginally better.
Nope, I push the button every single time

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      05-23-2016, 02:36 AM   #7
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I drive in comfort 60% of the time with no issues at all. It is almost as smooth as the 8-speed AT when cruising and works great for dynamic driving too.

The only issue all double clutch gearboxes have is low speed (< 15 mph) driving as they can't predict the next gear very good.
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      05-23-2016, 10:30 AM   #8
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When i'm in comfort and in D, and i try to shift...it does lag a little. But when i'm in sports+ and shift under load (@ 5000rpms) shift is good and hard.
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      05-23-2016, 05:27 PM   #9
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Quote:
Originally Posted by Franklin Joseph View Post
When i'm in comfort and in D, and i try to shift...it does lag a little. But when i'm in sports+ and shift under load (@ 5000rpms) shift is good and hard.
Same
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      05-23-2016, 05:32 PM   #10
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this has me worried now, i just put a deposit down on a DCT. I havent tested the m2 but Ive driven a late e92 with DCT and loved that.
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      05-23-2016, 10:12 PM   #11
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Its only laggy in comfort / auto mode ive found. I dont use those modes.
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      05-23-2016, 11:34 PM   #12
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not laggy at all here

if you are driving slowly, it will shift softer, the harder you drive, the harder it shifts
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      05-24-2016, 12:40 AM   #13
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Try doing a throttle body adaption reset and then maybe a gearbox adaption reset too
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      05-24-2016, 05:20 AM   #14
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Quote:
Originally Posted by Bee Pee
Try doing a throttle body adaption reset and then maybe a gearbox adaption reset too
Tried the TBA yesterday. No change. How do you do the gearbox adaptation?
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      05-24-2016, 05:22 AM   #15
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Quote:
Originally Posted by twboy1999
not laggy at all here

if you are driving slowly, it will shift softer, the harder you drive, the harder it shifts
Remember I'm coming off if a 135is DCT so am familiar with how it can perform. The M2 just doesn't perform nearly as well.

Anyone coming off a 1er DCT with ppk here? Just wondering if my DCT is the same as yours but you all don't have the same reference point for comparison.
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      05-24-2016, 08:03 AM   #16
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Quote:
Originally Posted by Pyrat 2 View Post
Remember I'm coming off if a 135is DCT so am familiar with how it can perform. The M2 just doesn't perform nearly as well.

Anyone coming off a 1er DCT with ppk here? Just wondering if my DCT is the same as yours but you all don't have the same reference point for comparison.
I had a DCT 135i with PPK installed, i pick up the M2 this weekend so will be able to report back soon.
My car suffered terribly from throttle lag though when accelerating from low speed, was soo annoying, am praying the M2 is not the same, DCT shift speeds on the other hand were perfect.
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      05-24-2016, 08:40 AM   #17
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Quote:
Originally Posted by Prodigy.
Quote:
Originally Posted by Pyrat 2 View Post
Remember I'm coming off if a 135is DCT so am familiar with how it can perform. The M2 just doesn't perform nearly as well.

Anyone coming off a 1er DCT with ppk here? Just wondering if my DCT is the same as yours but you all don't have the same reference point for comparison.
I had a DCT 135i with PPK installed, i pick up the M2 this weekend so will be able to report back soon.
My car suffered terribly from throttle lag though when accelerating from low speed, was soo annoying, am praying the M2 is not the same, DCT shift speeds on the other hand were perfect.
Looking forward to hearing back from you. I had no throttle lag on my 135is and shifts were perfect. Congrats in advance on the M2.
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      05-24-2016, 09:54 AM   #18
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Don't use comfort. It's called comfort for a reason. The DCT is not the same as the old cars nor is the programming.
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      05-24-2016, 11:13 PM   #19
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i made a little video for u
i couldn't really push it, but u could see how the DCT shift



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      05-25-2016, 05:20 AM   #20
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Quote:
Originally Posted by Pyrat 2 View Post
Tried the TBA yesterday. No change. How do you do the gearbox adaptation?
If DCT is the same as sport auto - disconnect battery for min. 30mins - reconnect and then drive it to see if DCT shift is any better
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      05-25-2016, 06:02 AM   #21
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I notice the more u go on throttle the faster the DCT shifts, when light throttle it shifts slower
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      05-25-2016, 06:04 AM   #22
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Quote:
Originally Posted by twboy1999
i made a little video for u
i couldn't really push it, but u could see how the DCT shift



Was that in D? Sport? If so mine winds up way past that under what sounds like equivalent acceleration. Probably 5500 to 6k rpms.
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