DCT judder anyone?

toplessrydr · 03-17-2012, 02:25 PM

Quote:

Originally Posted by ManiacGT

My baby is back, new DCT transmission and all. Absolutely transformed its now beyond smooth with no judder or vibration of any kind. Event the thud and jerk in D1 is gone when setting off and coming to a halt. This is how she should have been delivered...

Good to know. So all shifting is smooth? Enjoy your "transformed" as it should be smooth DCT.

ManiacGT · 03-18-2012, 05:58 AM

Quote:

Originally Posted by toplessrydr

Quote:

Originally Posted by ManiacGT

My baby is back, new DCT transmission and all. Absolutely transformed its now beyond smooth with no judder or vibration of any kind. Event the thud and jerk in D1 is gone when setting off and coming to a halt. This is how she should have been delivered...

Good to know. So all shifting is smooth? Enjoy your "transformed" as it should be smooth DCT.

Cheers and yea it's a level above smooth all the time now. I knew how it was before wasn't right. Not bad enough to make it fail or be uncomfortable but I just couldn't fathom how BMW would make an arguably better auto box that was more jerky than a traditional auto box. Now I have a car that's so smooth it make me go wow.

toplessrydr · 03-19-2012, 08:39 PM

I will be taking my Z back soon for another look. It still make a thunk on the downshift to first and those vibration still drive me nuts. The SA stated that wear on the tires will make the tranny shift rough (?) too. WTF??? Is this for real? Got new rear shoes today and will give her a run this weekend to see if it improves.....doubt it.

Got the rear camber adjust to max and was only able to go -1.5-ish. So far it's not affecting the ride with my driving. Maybe it's me but the new shoes with the camber adjust seemed to soften up the ride a bit. I installed RFT again. Don't ask.

Dr Stig 2 · 03-20-2012, 05:42 AM

Weirdest thing.
I had a judder go through the car (almost like bad fuel but smoother) when I was accelerating.
I eased off and tried again but there was no problem from then on. My first thought related to my mystery exploding trim, but then I remembered seeing this thread topic.

ManiacGT · 03-20-2012, 06:27 AM

I think if its a one off I'd not worry. My previous DCT though did its vibration thing in a reproducible way at low speeds every time. Thankfully a thing of the past with this new transmission (and I hope it stays that way).

03-19-2012, 08:39 PM	#25
toplessrydr Private 5 Rep 58 Posts Drives: '09 E89 35i Join Date: Nov 2011 Location: California iTrader: (0)	I will be taking my Z back soon for another look. It still make a thunk on the downshift to first and those vibration still drive me nuts. The SA stated that wear on the tires will make the tranny shift rough (?) too. WTF??? Is this for real? Got new rear shoes today and will give her a run this weekend to see if it improves.....doubt it. Got the rear camber adjust to max and was only able to go -1.5-ish. So far it's not affecting the ride with my driving. Maybe it's me but the new shoes with the camber adjust seemed to soften up the ride a bit. I installed RFT again. Don't ask.
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03-20-2012, 05:42 AM	#26
Dr Stig 2 Criminally Insane 53 Rep 1,464 Posts Drives: Like a Demon! Join Date: Jun 2010 Location: Brisbane, Australia iTrader: (0) Garage List 2010 BMW Z4 35is [10.00] 2013 BMW X5 30d [0.00]	Weirdest thing. I had a judder go through the car (almost like bad fuel but smoother) when I was accelerating. I eased off and tried again but there was no problem from then on. My first thought related to my mystery exploding trim, but then I remembered seeing this thread topic. __________________ Dr Stig 2010 Z4 35is 2011 X3 30d M Sport Australia
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03-20-2012, 06:27 AM	#27
ManiacGT Major 85 Rep 1,448 Posts Drives: Z4 sDrive 35i Join Date: Jan 2011 Location: Manchester, UK iTrader: (0)	I think if its a one off I'd not worry. My previous DCT though did its vibration thing in a reproducible way at low speeds every time. Thankfully a thing of the past with this new transmission (and I hope it stays that way).
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