BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > M3 (E90 / E92 / E93) > General M3 Forum (E90 + E92 + E93)
 
Post Reply
 
Thread Tools Search this Thread
      11-04-2012, 07:26 AM   #1
is300wrx
Private First Class
 
Drives: 2014 M5
Join Date: Mar 2011
Location: New England

Posts: 152
iTrader: (0)

DCT and downshifting to 1st

Got a question for all the DCT owners. I have driven manual transmission cars all my life and I decided to switch over to DCT for the performance advantage. Now when you shift in a manual car, you always recall what gear you're. I sometimes worry that I might click one too many times and downshift into 1st in this car.

Has anyone else have this issue?
is300wrx is offline  
0
Reply With Quote
      11-04-2012, 07:28 AM   #2
CanAutM3
Brigadier General
 
CanAutM3's Avatar
 
Drives: 2015 M4 DCT
Join Date: Jan 2012
Location: Montreal

Posts: 3,727
iTrader: (0)

Garage List
2015 BMW M4  [4.50]
2006 Audi S4  [0.00]
Quote:
Originally Posted by is300wrx View Post
Got a question for all the DCT owners. I have driven manual transmission cars all my life and I decided to switch over to DCT for the performance advantage. Now when you shift in a manual car, you always recall what gear you're. I sometimes worry that I might click one too many times and downshift into 1st in this car.

Has anyone else have this issue?
DCT has imbedded protection that will not allow a downshift that would cause an overrev. So no money shift with a DCT. No need to worry .

Further, as you get used to DCT, you will start remembering what gear you are in or develop the reflex to quickly glance at the cluster. I also struggled a bit at first where I felt disconnected with the transmission. No more issues, it feels natural.
CanAutM3 is offline   Canada
0
Reply With Quote
      11-04-2012, 08:10 AM   #3
paradocs98
Major
 
paradocs98's Avatar
 
Drives: 2014 991 Carrera S
Join Date: May 2009
Location: NY

Posts: 1,342
iTrader: (0)

Quote:
Originally Posted by CanAutM3 View Post
DCT has imbedded protection that will not allow a downshift that would cause an overrev. So no money shift with a DCT. No need to worry .

Further, as you get used to DCT, you will start remembering what gear you are in or develop the reflex to quickly glance at the cluster. I also struggled a bit at first where I felt disconnected with the transmission. No more issues, it feels natural.
+1. Just as with a manual transmission, over time you'll learn what the engine sounds like at various rpms, and based on your road speed, you'll know what gear you're in without looking down at the indicator in the instrument display. Plus, as you leave a stoplight and go up through a couple of gears, you'll remain aware of where you are even a few minutes later. Brain farts do happen from time to time, and you'll downshift instead of upshift, or go down into first by mistake, but as CanAutM3 points out, the car protects itself from overrevs and will prevent you from downshifting if it would result in too high of an engine speed. The worst that happens is that you go down into first, the engine revs to 6000-7000, engine braking makes you jerk like someone threw an anchor out, and you look around at your fellow drivers, thinking "I meant to do that."

More of a concern is putting on the wiper wash or flashing your high beams when you meant to hit the shift paddles instead. I can tease because I've done it before.

And in case people tease you for having an "automatic" M3, just reassure them that, all else being equal, it's faster on the track than a traditional manual. I also drove manual transmission cars all my life until this car and the E60 M5 SMG I had before it. Over 3 years and 24,000 miles in the M5, and so far almost 2 years and 21,000 miles in the M3, I've never driven in D mode. Manual control all the way!
__________________
IB E90 M3 ZCP returned to BMW FS

Last edited by paradocs98; 11-04-2012 at 08:16 AM.
paradocs98 is offline   United_States
0
Reply With Quote
      11-04-2012, 08:29 AM   #4
M3SQRD
Colonel
 
M3SQRD's Avatar
 
Drives: E92 M3s, R56 Cooper S
Join Date: Jun 2009
Location: EC

Posts: 2,453
iTrader: (2)

Quote:
Originally Posted by CanAutM3 View Post
DCT has imbedded protection that will not allow a downshift that would cause an overrev. So no money shift with a DCT. No need to worry .

Further, as you get used to DCT, you will start remembering what gear you are in or develop the reflex to quickly glance at the cluster. I also struggled a bit at first where I felt disconnected with the transmission. No more issues, it feels natural.
+2 - DCT won't let you select a lower gear if it results in an over-rev condition.

Just like when driving a MT, with more time the DCT will start to feel very natural and "2nd nature".
M3SQRD is offline   United_States
0
Reply With Quote
      11-04-2012, 08:34 AM   #5
Donbona
Lieutenant Colonel
 
Donbona's Avatar
 
Drives: E93 M3 DCT 2008
Join Date: May 2009
Location: London UK

Posts: 1,668
iTrader: (0)

As sais above, in time you will learn to hear the sexy sound and will know which gear you are in
__________________
M3 E93 DCT, Space Grey,BC HB29 Forged Deep Concave Wheels, Ericsson Amuse F/R Bumper, Evolve Full Exhaust System, INTRAX Coilovers, STOPTECH BBK, Performance Steering Wheel,Custom Red/Black Leather Seats,///M3 ||Bimmerpost M3 Car Of The Month May - 2010SOLD
2010 R35 GTR
Donbona is offline   United Kingdom
0
Reply With Quote
      11-04-2012, 08:35 AM   #6
///M Power-Belgium
Brigadier General
 
///M Power-Belgium's Avatar
 
Drives: ///M3-DCT- E92 Silverstone II
Join Date: Jul 2012
Location: Belgium

Posts: 3,407
iTrader: (0)

Quote:
Originally Posted by is300wrx View Post
Got a question for all the DCT owners. I have driven manual transmission cars all my life and I decided to switch over to DCT for the performance advantage. Now when you shift in a manual car, you always recall what gear you're. I sometimes worry that I might click one too many times and downshift into 1st in this car.

Has anyone else have this issue?
I will say it..... the American way.....
Don't worry....it's a piece of cake

Last edited by ///M Power-Belgium; 11-04-2012 at 08:44 AM.
///M Power-Belgium is online now   Belgium
0
Reply With Quote
      11-04-2012, 11:19 AM   #7
Transfer
Lieutenant Colonel
 
Transfer's Avatar
 
Drives: SQ5, X1
Join Date: Mar 2010
Location: Seattle, WA

Posts: 1,673
iTrader: (0)

I just keep downshifting until I hear a RAARRR and see the needle fly up in my periphery then I know I'm in a good gear, preferably without getting up into shift light territory on the downshift.
Transfer is offline   United_States
0
Reply With Quote
      11-04-2012, 11:26 AM   #8
rjd598
Brigadier General
 
rjd598's Avatar
 
Drives: 10' M3
Join Date: Jan 2009
Location: San Diego,CA

Posts: 4,555
iTrader: (2)

Garage List
2010 BMW M3  [4.50]
1999 BMW M3  [0.00]
Quote:
Originally Posted by Transfer View Post
I just keep downshifting until I hear a RAARRR and see the needle fly up in my periphery then I know I'm in a good gear, preferably without getting up into shift light territory on the downshift.
+1. Those downshifts scare little kids
__________________
rjd598 is offline   United_States
0
Reply With Quote
      11-04-2012, 01:45 PM   #9
Transfer
Lieutenant Colonel
 
Transfer's Avatar
 
Drives: SQ5, X1
Join Date: Mar 2010
Location: Seattle, WA

Posts: 1,673
iTrader: (0)

^^ If I had a dollar for every time some unsuspecting pedestrian whipped their head around...
Transfer is offline   United_States
0
Reply With Quote
      11-04-2012, 02:57 PM   #10
mmcnulty
Enlisted Member
 
Drives: 2013 E93 M3 DCT SSII
Join Date: Oct 2012
Location: San Francisco

Posts: 43
iTrader: (0)

Garage List
Quote:
Originally Posted by paradocs98 View Post
More of a concern is putting on the wiper wash or flashing your high beams when you meant to hit the shift paddles instead. I can tease because I've done it before.
Even *more* of a concern is doing so with the top down on an E93. I've given myself a light shower of that potent factory wiper fluid twice now in my first 8 days with the car
mmcnulty is offline   United_States
0
Reply With Quote
      11-04-2012, 04:34 PM   #11
GrussGott
Major
 
GrussGott's Avatar
 
Drives: e93 M3
Join Date: Jun 2009
Location: 50% NorCal 40% SoCal

Posts: 1,138
iTrader: (0)

Garage List
2011 E93 M3  [0.00]
Quote:
Originally Posted by mmcnulty View Post
Even *more* of a concern is doing so with the top down on an E93. I've given myself a light shower of that potent factory wiper fluid twice now in my first 8 days with the car
Ha, I haven't had this problem but I could definitely see how easy it would be.

To the OP, as others have said, in a manual you just get used to hearing the engine and judging your speed against the RPMs and that tells you what gear to pick given the situation.

Same is true with DCT - you're usually within 2 gears of where you want but, if not, there's a short cut (more in a sec). Here are some examples:
  • You're freeway crusing at 80 and want to provide some engine braking and/or prepare for a casual pass: 2 clicks from 7 to 5. I do this one all of the time
  • You're on a 50ish MPH road and you want to power through a turn; that's usually one click from 4 to 3, sometimes 2 clicks from 4 to 2
  • You're taking a right sweeper like in a yield RH turn - this is almost always 2nd gear so I'll glance down (to the cluster) to find the # of clicks

Now here's the shortcut - you're on the track (or elsewhere ) and you want the absolute most power:
  • Ideally be in M-mode
  • pull in and hold the left paddle
  • right foot to the floor with the throttle (WOT, ie kick-down switch)
  • Make damn sure you have a lot of room in front of you and you're ready to upshift cause you're going take off like a bat outa hell (release the left paddle when you do)

This will take you from 80 to 130 in what will seem (to me) like zero seconds. Use with caution, look for the nearest petrol station
GrussGott is offline  
0
Reply With Quote
      11-04-2012, 04:41 PM   #12
Mike Benvo
BimmerPost Supporting Vendor

 
Mike Benvo's Avatar
 
Drives: 08 E90 M3 / 400whp Turbo 7
Join Date: Apr 2008
Location: SoCal

Posts: 4,642
iTrader: (7)

Garage List
1990 BMW 735i Turbo  [5.00]
2004 BMW M3  [0.00]
2008 BMW M3  [5.00]
Send a message via Skype™ to Mike Benvo
^^ + 1

Impossible to over rev DCT, although they consistently can hit higher RPM's by slight variation of 6MT cars.

Most DCT cars that have bounced off limiter have been 8,5XX RPM. 6MT cars usually around 50 RPM lower. This has to do with the DCT control unit in conjunction with the DME programming.

And yeah.. just glance down at the cluster and tap it by the number of gears you need to drop.

A lot of people would have busted motors if DCT honored every downshift request it was given
__________________

-----| Like us on Facebook | Instagram || Tuning Information | Remote Coding |-----
----Visit us at www.BPMSport.com - Emotion. Driven. | Toll Free: (888) 557-5133----
Mike Benvo is offline   United_States
0
Reply With Quote
      11-04-2012, 04:43 PM   #13
MStar
Banned
 
Drives: e92 M3
Join Date: Oct 2012
Location: Here and there

Posts: 290
iTrader: (0)

Quote:
Originally Posted by is300wrx View Post
Got a question for all the DCT owners. I have driven manual transmission cars all my life and I decided to switch over to DCT for the performance advantage. Now when you shift in a manual car, you always recall what gear you're. I sometimes worry that I might click one too many times and downshift into 1st in this car.

Has anyone else have this issue?
The DCT is "idiot" proof with all its electronics and software nannies....what are you worried about?
MStar is offline   No_Country
0
Reply With Quote
      11-04-2012, 04:45 PM   #14
Mr. ///M3 RD
Major General
 
Mr. ///M3 RD's Avatar
 
Drives: E350 & 280 SL on Weekends :)
Join Date: May 2010
Location: GTA, Ontario - Canada

Posts: 7,863
iTrader: (0)

Garage List
Even tough I am German/Canadian I will put it to the OP in the good old Italian/American way ....

"Forget about it"

Don't worry the ///M Team at BMW has you covered on that one.
__________________
Cheers, Rolf-Dieter

Life will take us to some interesting places, fortunately The ///M3 will too with a many of us know this very well
---> Click here for some good stuff I found
Mr. ///M3 RD is offline   Canada
0
Reply With Quote
      11-04-2012, 05:10 PM   #15
sensi09
Lieutenant Colonel
 
Drives: .
Join Date: Dec 2010
Location: socal

Posts: 1,765
iTrader: (1)

Losing what gear you were in was one of my biggest complaints in the beginning, but I agree that you just get the knack for it and it really isn't an issue anymore.

I think losing what gear you're in and searching for the right gear in part has to do with having 7 gears. I also do the 7th to 5th gear typically on the highway whereas with a regular manual in the same situation I'd probably be in 4th. Just little things you get use to.
sensi09 is offline  
0
Reply With Quote
      11-04-2012, 05:16 PM   #16
advans
Advansolosis
 
Drives: ///M+////AMG
Join Date: Aug 2007
Location: NYC

Posts: 1,118
iTrader: (1)

with the DCT you'll eventually hear the infamous blip noise, which is freakin awesome.
__________________

2011///M3_ZCP:
2009_550i_MSport_daily_driver
advans is offline  
0
Reply With Quote
      11-05-2012, 12:45 PM   #17
1fastdoc
Second Lieutenant
 
1fastdoc's Avatar
 
Drives: 2011 E92 M3
Join Date: Oct 2012
Location: Nashville, TN

Posts: 223
iTrader: (0)

Quote:
Originally Posted by GrussGott View Post
Ha, I haven't had this problem but I could definitely see how easy it would be.

To the OP, as others have said, in a manual you just get used to hearing the engine and judging your speed against the RPMs and that tells you what gear to pick given the situation.

Same is true with DCT - you're usually within 2 gears of where you want but, if not, there's a short cut (more in a sec). Here are some examples:
  • You're freeway crusing at 80 and want to provide some engine braking and/or prepare for a casual pass: 2 clicks from 7 to 5. I do this one all of the time
  • You're on a 50ish MPH road and you want to power through a turn; that's usually one click from 4 to 3, sometimes 2 clicks from 4 to 2
  • You're taking a right sweeper like in a yield RH turn - this is almost always 2nd gear so I'll glance down (to the cluster) to find the # of clicks

Now here's the shortcut - you're on the track (or elsewhere ) and you want the absolute most power:
  • Ideally be in M-mode
  • pull in and hold the left paddle
  • right foot to the floor with the throttle (WOT, ie kick-down switch)
  • Make damn sure you have a lot of room in front of you and you're ready to upshift cause you're going take off like a bat outa hell (release the left paddle when you do)

This will take you from 80 to 130 in what will seem (to me) like zero seconds. Use with caution, look for the nearest petrol station
You don't have to hold down the paddle. Just put the pedal down past the resistance point (floored) and tap the left paddle (or push the selector lever forward) once. It will drop down the the most appropriate gear for acceleration.

On a side note, I never see my shift lights anymore. I used to and it's set to "on" but they never light up in or out of M mode. Is there some other hidden setting where I may have turned them off while experimenting with stuff?
1fastdoc is offline  
0
Reply With Quote
      11-05-2012, 01:12 PM   #18
is300wrx
Private First Class
 
Drives: 2014 M5
Join Date: Mar 2011
Location: New England

Posts: 152
iTrader: (0)

I got the same issue. I always find myself having to turn it back on an it somehow ends up in the off mode as default. You can find this by scrolling through your menus using your left indicator.
is300wrx is offline  
0
Reply With Quote
      11-05-2012, 01:18 PM   #19
mamadub
Captain
 
mamadub's Avatar
 
Drives: Melbourne Red 2011 E93
Join Date: Oct 2011
Location: Arizona

Posts: 822
iTrader: (0)

Quote:
Originally Posted by Transfer View Post
^^ If I had a dollar for every time some unsuspecting pedestrian whipped their head around...
haha, me too!
__________________


Black Novillo Extended Leather, Convenience Package, Premium Package 2, DCT, DDC, BMW Apps, Custom Stereo upgrade, Eisenmann Sport Black Series Exhaust, 20"HRE's P45SC's. Color matched Brembo 380/345's, KW Coilovers
mamadub is offline   United_States
0
Reply With Quote
      11-05-2012, 03:38 PM   #20
Nd e92
New Member
 
Drives: 2011 e92 m3
Join Date: Apr 2012
Location: Shenzhen

Posts: 23
iTrader: (0)

I have driven auto all my life. So no matter what I do with the up shifts and down shifts won't hurt the car?
Nd e92 is offline   China
0
Reply With Quote
      11-05-2012, 04:06 PM   #21
Denk
Lieutenant Colonel
 
Drives: E92 M3 ZCP
Join Date: May 2011
Location: PNW

Posts: 1,874
iTrader: (2)

Most times DCT won't even let me shift into first doing a rolling stop, kinda annoying cause I want first but it won't give it to me.
Denk is offline   United_States
0
Reply With Quote
      11-05-2012, 05:11 PM   #22
Sam@ModeCarbon
BimmerPost Supporting Vendor

 
Sam@ModeCarbon's Avatar
 
Drives: using 3 pedals
Join Date: Nov 2010
Location: NY l LA

Posts: 3,438
iTrader: (2)

Quote:
Originally Posted by Donbona View Post
As sais above, in time you will learn to hear the sexy sound and will know which gear you are in
+1
__________________
Sam@ModeCarbon is online now  
0
Reply With Quote
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
Forum Jump


All times are GMT -5. The time now is 09:25 AM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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