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Old 05-13-2013, 01:18 PM   #1
nseah
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DCT D and S Adaptive Learning

Everytime I take my car to the dealer and they reset the DCT, I notice that the car drives amazing, and overtime it "learns" to shift slow, and adds major clutch slipping and microslipping, and the car feels sluggish and slow. This is with me driving in D

A couple months ago I started driving in S because it gives me stronger shifts and the car drives much much faster and more responsive. Once I drive in S for say a week or more, and then i switch into D, I find it drives just like when the DCT resets. The shifts are quick and strong and the car drives very well.

Anyone else noticing this? Drive in S for a while and the D drives better. Continue in D and it will "learn" to be sluggish and slow with lots of slip until you drive in S again.

Something is seriously wrong with the adaptive learning with the DCT. I wish there was a way to turn it off. Anyone else notice that after having the DCT reset the drive is worlds of a difference.


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Old 05-13-2013, 01:28 PM   #2
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It learns based on your driving style so if it's shifting slow and sluggish, you need to be more direct with your throttle inputs.

IMO A vague throttle input from the driver is the main source of all this DCT hullabaloo.
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Old 05-13-2013, 01:31 PM   #3
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Quote:
Originally Posted by mac.mogul View Post
It learns based on your driving style so if it's shifting slow and sluggish, you need to be more direct with your throttle inputs.

IMO A vague throttle input from the driver is the main source of all this DCT hullabaloo.
This. I ca recreate 90% of the issues people experience this way.

The other 10%, however, tends to be real issues with the gearbox/throttle/software.
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Old 05-13-2013, 01:32 PM   #4
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This. I ca recreate 90% of the issues people experience this way.

The other 10%, however, tends to be real issues with the gearbox/throttle/software.
Absolutely. I've driven a number of DCT equipped cars and never had an issue.

I do not deny that there are some who experience real hardware defects.
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Old 05-13-2013, 01:40 PM   #5
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It very well may be related to flawed "learning."

I'm coming up on 800 miles on my 2013, and I just started noticing (in the past 100 miles or so) that some DCT shifts are very... violent. It seems to only be when moving from 1 to 2 (or 2 to 3.) It feels similar to a person trying to learn how to drive a manual transmission.

I tend to only use "S" for manual downshifting when I'm not using cruise control (and going down a steep decline), and haven't ever had this DCT reset.

Last edited by garyd9; 05-13-2013 at 03:24 PM. Reason: typo fix
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Old 05-13-2013, 02:53 PM   #6
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Quote:
Originally Posted by mac.mogul View Post
It learns based on your driving style so if it's shifting slow and sluggish, you need to be more direct with your throttle inputs.

IMO A vague throttle input from the driver is the main source of all this DCT hullabaloo.
hmm...Im curious about this. When I first got my focus about a year ago I got the same advice to not baby the DCT. For me, I started flooring the throttle and accellerating quickly off the line. After that I noticed the DCT going "soft and sluggish". Thanks for the advice maybe ill try to be more aggressive again.
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