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
      07-16-2012, 01:54 AM   #1
haitham87
Private First Class
haitham87's Avatar
Lebanon
18
Rep
100
Posts

Drives: 135i, JB4, AA BOV, PE
Join Date: Mar 2012
Location: Beirut

iTrader: (0)

DCT

Sorry for this ignorant question.. But do 08,09,10 135's get DCT transmission, or do they get a normal auto box?

Appreciate 0
      07-16-2012, 07:05 AM   #2
Diver
Brigadier General
Diver's Avatar
United_States
504
Rep
3,446
Posts

Drives: Black '12 135i - Sold
Join Date: Nov 2010
Location: Texas

iTrader: (0)

Normal auto through 2010. 2011 and later get DCT. Other major changes in 2011 were switch to N55 engine (harder to tune) and constant rate springs that reduce, but do not eliminate under steer.
__________________
Appreciate 0
      07-16-2012, 07:07 AM   #3
NYC6
Banned
United_States
71
Rep
2,070
Posts

Drives: '10 135i PPKI/06 C6 Z51 Vette
Join Date: Aug 2009
Location: LI/NY

iTrader: (0)

Didnt know that about the springs.
Appreciate 0
      01-02-2013, 07:34 PM   #4
lufasz
Registered
0
Rep
1
Posts

Drives: 135i
Join Date: Jan 2013
Location: pdx

iTrader: (0)

Maybe I can add another ignorant question here, since I can't make a topic of my own yet.

I just got a 2011 135i with DCT. I used to have a Z4 with SMG. With the SMG, the clutch never engaged until I hit the gas. With the DCT, as soon as I let go of the break, the car starts moving, both in 1st and reverse. Is this expected behavior? So if I gradually release the break and nudge forward, my clutch is slipping? Isn't this a bit of useless wear?

Thanks for any info!
Appreciate 0
      01-02-2013, 09:01 PM   #5
WhiteTgr135i
Captain
United_States
68
Rep
967
Posts

Drives: 2012 BMW 135i
Join Date: Jul 2011
Location: City of Rapture

iTrader: (5)

The SMG gearbox is a single clutch transmission. The DCT is a dual clutch transmission. And the clutch isn't slipping, the cars behavior is normal.
Appreciate 0
      01-02-2013, 11:36 PM   #6
zamboni
I want to drive a Zamboni
zamboni's Avatar
United_States
1125
Rep
5,551
Posts

Drives: 13 E93 M3 18 F80 M3 16 K71
Join Date: Mar 2006
Location: Monte Sereno, CA

iTrader: (7)

Garage List
16 K71 F800GT  [10.00]
2018 F80 M3  [10.00]
2013 BMW E93 M3  [10.00]
Quote:
Originally Posted by lufasz View Post
Maybe I can add another ignorant question here, since I can't make a topic of my own yet.

I just got a 2011 135i with DCT. I used to have a Z4 with SMG. With the SMG, the clutch never engaged until I hit the gas. With the DCT, as soon as I let go of the break, the car starts moving, both in 1st and reverse. Is this expected behavior? So if I gradually release the break and nudge forward, my clutch is slipping? Isn't this a bit of useless wear?

Thanks for any info!
I test drove a M3 other day and when I let go the brake the car is not moving at all unless I step on gas peddle otherwise the vehicle remains unmoved.
__________________
18 F80 Imola Red 6MT
16 K71 F800GT Montego Blue
13 E93 M3 Melbourne Red

2000 E46,2006 E90,09 E82,13 E93 328i,14 F30 335i,18 F80 M3
My next vehicle would be a Zamboni
Appreciate 0
      01-03-2013, 02:40 PM   #7
GeeRam
Major
GeeRam's Avatar
United Kingdom
195
Rep
1,317
Posts

Drives: X5 40d SE
Join Date: Apr 2010
Location: Berkshire,UK

iTrader: (0)

Quote:
Originally Posted by zamboni View Post
I test drove a M3 other day and when I let go the brake the car is not moving at all unless I step on gas peddle otherwise the vehicle remains unmoved.
That's because the M3 engine doesn't have sufficient torque at idle revs to move the car, whereas the 135 does
__________________
2017 X5 4.0dSE ~ Atlas Cedar:Ind.Amaro Brown Merino&Piano Blk, Sport Auto, DHP, Comfort seats, Cold weather pack, HK audio, Electric towbar, Sun protection glass.
Appreciate 0
      01-03-2013, 10:39 PM   #8
zamboni
I want to drive a Zamboni
zamboni's Avatar
United_States
1125
Rep
5,551
Posts

Drives: 13 E93 M3 18 F80 M3 16 K71
Join Date: Mar 2006
Location: Monte Sereno, CA

iTrader: (7)

Garage List
16 K71 F800GT  [10.00]
2018 F80 M3  [10.00]
2013 BMW E93 M3  [10.00]
Quote:
Originally Posted by GeeRam View Post
That's because the M3 engine doesn't have sufficient torque at idle revs to move the car, whereas the 135 does
Do you mean 297lb of torque is not eoungh ? wow that is interesting.
__________________
18 F80 Imola Red 6MT
16 K71 F800GT Montego Blue
13 E93 M3 Melbourne Red

2000 E46,2006 E90,09 E82,13 E93 328i,14 F30 335i,18 F80 M3
My next vehicle would be a Zamboni
Appreciate 0
      01-03-2013, 11:13 PM   #9
MPowerF1
Private First Class
MPowerF1's Avatar
3
Rep
126
Posts

Drives: 2012 BMW 135i DCT
Join Date: Dec 2011
Location: Bay Area

iTrader: (0)

Quote:
Originally Posted by lufasz View Post
Maybe I can add another ignorant question here, since I can't make a topic of my own yet.

I just got a 2011 135i with DCT. I used to have a Z4 with SMG. With the SMG, the clutch never engaged until I hit the gas. With the DCT, as soon as I let go of the break, the car starts moving, both in 1st and reverse. Is this expected behavior? So if I gradually release the break and nudge forward, my clutch is slipping? Isn't this a bit of useless wear?

Thanks for any info!
Yes, this is normal behavior. The car has a creep feature built in which the M3 does not have. In these settings the car is slipping the clutch, though I'd hardly call it unnecessary wear since the clutch will slip either way, either automatically or with your own foot.


At first I didn't like this, but it has proved very useful, particularly when my less car savvy boyfriend goes to drive.
Appreciate 0
      01-04-2013, 01:37 AM   #10
jsmonet
Captain
United_States
302
Rep
913
Posts

Drives: 2020 x7 m50i
Join Date: Nov 2011
Location: so cal

iTrader: (2)

Quote:
Originally Posted by zamboni
Quote:
Originally Posted by GeeRam View Post
That's because the M3 engine doesn't have sufficient torque at idle revs to move the car, whereas the 135 does
Do you mean 297lb of torque is not eoungh ? wow that is interesting.
Off idle lol diesel.

Nnnnope. Remember that peak torque is not off idle torque.
__________________
2020 bmw xHippo, v8tt edition
Appreciate 0
      01-04-2013, 02:51 PM   #11
GeeRam
Major
GeeRam's Avatar
United Kingdom
195
Rep
1,317
Posts

Drives: X5 40d SE
Join Date: Apr 2010
Location: Berkshire,UK

iTrader: (0)

Quote:
Originally Posted by zamboni View Post
Do you mean 297lb of torque is not eoungh ? wow that is interesting.
I suggest you read again exactly what I wrote.....
__________________
2017 X5 4.0dSE ~ Atlas Cedar:Ind.Amaro Brown Merino&Piano Blk, Sport Auto, DHP, Comfort seats, Cold weather pack, HK audio, Electric towbar, Sun protection glass.
Appreciate 0
      01-04-2013, 06:21 PM   #12
rking117
Lieutenant Colonel
United_States
118
Rep
1,668
Posts

Drives: Z4 3.0i & 320i
Join Date: Aug 2012
Location: USA

iTrader: (0)

Quote:
Originally Posted by zamboni View Post
Do you mean 297lb of torque is not eoungh ? wow that is interesting.
I would argue that you dont have that much torque at idle. the torque curve will be steep until you reach the torque band then it will taper off quickly. The torque band however on the 135 is almost at red line. I havent measured it but judging by experience i suspect that you may be about half that amout of torque at idle or less.
Appreciate 0
      01-04-2013, 06:55 PM   #13
zamboni
I want to drive a Zamboni
zamboni's Avatar
United_States
1125
Rep
5,551
Posts

Drives: 13 E93 M3 18 F80 M3 16 K71
Join Date: Mar 2006
Location: Monte Sereno, CA

iTrader: (7)

Garage List
16 K71 F800GT  [10.00]
2018 F80 M3  [10.00]
2013 BMW E93 M3  [10.00]
Quote:
Originally Posted by lufasz View Post
Maybe I can add another ignorant question here, since I can't make a topic of my own yet.

I just got a 2011 135i with DCT. I used to have a Z4 with SMG. With the SMG, the clutch never engaged until I hit the gas. With the DCT, as soon as I let go of the break, the car starts moving, both in 1st and reverse. Is this expected behavior? So if I gradually release the break and nudge forward, my clutch is slipping? Isn't this a bit of useless wear?

Thanks for any info!
My SA said most of DCT has a HDC built in so the car won't roll back on hill or flat surface no wonder why on the M3 it will not move even if you have your foot off the brake peddle.
__________________
18 F80 Imola Red 6MT
16 K71 F800GT Montego Blue
13 E93 M3 Melbourne Red

2000 E46,2006 E90,09 E82,13 E93 328i,14 F30 335i,18 F80 M3
My next vehicle would be a Zamboni
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 10:32 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