BMW M3 Forum
BMW M3 Forum BMW M3 Gallery BMW M3 Reviews BMW M3 Social Groups BMW M3 Chat M3Forum Sponsors >>
Loading


Mobile M3forum
Go Back   BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X) > BMW M3 Discussions > E90 M3 (Sedan) | E92 M3 (Coupe) | E93 M3 (Convertible) (2008-2013)
Tire Rack Buy Winter Tires Now!
Not a member? Register Now!
Register Gallery All Albums Garage Search Today's Posts Mark Forums Read Calendar FAQ

E90 M3 (Sedan) | E92 M3 (Coupe) | E93 M3 (Convertible) (2008-2013) {Engine: S65 - Max Hp: 414 hp (420 hp Euro) at 8,300 rpm / 295 lb/ft at 3,900 rpm}


Reply
 
Thread Tools Display Modes
Old Sat, Mar-19-2011, 02:37:27 PM   #1
Voodooking
Registered User
 
Join Date: Jun 2009
Posts: 41
Reputation: 0 Voodooking is on a distinguished road
Location: Aberdeen

United Kingdom




Default How Reliable are M DCT Transmissions?

I'm coming from a Manual E46 M3, looking at DCT E90 M3's, and SMG E60 M5's.

One problem that I've noticed with the SMG III in the M5's is that the clutch wears out in a relatively short space of time. For example 30k to 40k miles seems to be average.

Replacement seems to cost an arm and a leg, and the flywheel, release bearings etc. must be replaced at the same time, which can cost approx 2000 which isn't covered by warranty.

My question is, is clutch replacement going to be necessary on an E90 M3 DCT also? I realise that they are a completely different transmission made from completely different technology, but will I need to budget for replacing the clutches in the DCT also, or is it not something I even need to think about?
Jump to top Voodooking is offline   Reply With Quote
Sponsored Links
Register now and remove these ads
Old Sat, Mar-19-2011, 07:41:37 PM   #2
silver-or-blue
calintexas elsewhere
 
silver-or-blue's Avatar
 
Join Date: Apr 2003
Posts: 59
Reputation: 0 silver-or-blue is on a distinguished road
Location: North Texas

United States




Default Re: How Reliable are M DCT Transmissions?

The M-DCT's seem to be very reliable so far, but I don't think there are a lot of high mileage ones. If you want to see the insides of one that's been severely abused, look at Sticky's transmission mod thread in the S65 forum on another site. My guess is that as long as you don't abuse the clutches by driving your car like an automatic (throttle depressed/brakes applied or holding the car with the throttle on a slope) very often or use launch control frequently, it will live a long time provided it doesn't have a manufacturing fault.

Cleveland address the reliability question very well in this thread: http://www.m3forum.net/m3forum/showthread.php?t=356951
__________________
2010 E90 M3 Melbourne Red, Wincos 30% Tint, RAC RG63's

Last edited by silver-or-blue; Sat, Mar-19-2011 at 10:05:51 PM.
Jump to top silver-or-blue is offline   Reply With Quote
Old Mon, Mar-26-2018, 12:54:35 AM   #3
rpearl555
So Shiny So Chrome
 
Join Date: Feb 2016
Posts: 628
Reputation: 0 rpearl555 is on a distinguished road
Location: Florida

United States




Default Re: How Reliable are M DCT Transmissions?

Didn’t want to start a new thread.

Now that this platform has been out for sometime, can anyone else chime in?
Jump to top rpearl555 is offline   Reply With Quote
Old Mon, Mar-26-2018, 11:33:01 AM   #4
pbonsalb
Registered User
 
Join Date: Jun 2005
Posts: 3,501
Reputation: 0 pbonsalb is on a distinguished road





Default Re: How Reliable are M DCT Transmissions?

The best E9xM3 tech is at m3post dot com in the E9xM3 section. They seem very reliable but some have leaked and some have needed a pump and some modified supercharged ones have needed better clutches. I would not hesitate to buy one — it’s s great trans that shifts faster than any human.
Jump to top pbonsalb is offline   Reply With Quote
Old Mon, Mar-26-2018, 11:47:09 AM   #5
rpearl555
So Shiny So Chrome
 
Join Date: Feb 2016
Posts: 628
Reputation: 0 rpearl555 is on a distinguished road
Location: Florida

United States




Default Re: How Reliable are M DCT Transmissions?

Thanks for the insight. I didn’t know about the pumps but I figured that they do seem reliable from the limited reading I’ve done. It’s too bad this forum doesn’t have as much active speak on the car. I prefer it’s layout to the m3post.
Jump to top rpearl555 is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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

Forum Jump



All times are GMT. The time now is 08:33:58 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
M3Forum.com and M3forum.net is in no way sponsored, endorsed or affiliated by or with BMW NA / BMW AG or any of it's subsidiaries or vendors.
BMW and M3 (E90 M3 | E92 M3 | E93 M3 | E46 M3 | E36 M3 | E30 M3) are registered trademarks of BMW AG.
M3Forum Terms of Service
Copyright 1999-2017 M3Forum.com
Discussing How Reliable are M DCT Transmissions? in the E90 M3 (Sedan) | E92 M3 (Coupe) | E93 M3 (Convertible) (2008-2013) Forum - {Engine: S65 - Max Hp: 414 hp (420 hp Euro) at 8,300 rpm / 295 lb/ft at 3,900 rpm} at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)