BMW X3 Forum
BMW X3 Forum
Welcome to the ultimate BMW X3 community.
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
XBimmers | BMW X3 Forum BMW X3/X4 Forums (2018 - 2024) BMW X3M (F97) and X4M (F98) General Forum (2018+) On-ramp Pulls - Manual vs Auto

Post Reply
 
Thread Tools Search this Thread
      02-11-2022, 04:46 PM   #1
harperium
Stargate Command
517
Rep
625
Posts

Drives: 2021 X3MC
Join Date: Dec 2016
Location: Chicago

iTrader: (0)

On-ramp Pulls - Manual vs Auto

Something I've noticed, maybe other people have too.

When doing an on-ramp pull, the gear/RPMs/acceleration are not always consistent. I start the pull anywhere from 10 to 40 mph depending on the on-ramp. Always in Sports+ and D3. I then push to WOT so the kickdown button is depressed.

Sometimes the car will downshift and the RPMs will jump from 2500-ish up to 4000 or 4500. The sweet spot. These are the best pulls.

But other times, the car will not downshift. For example today on a cloverleaf onramp, my speed was about 30 mph and the RPMs were around 2800 (Sports+ D3 auto). I pushed to WOT, and .... the RPMs climbed until red line but the car didn't downshift. So the pull did not have as much acceleration. Just one long climb to red line. Fun, yes, but I was expecting a downshift, and jump to about 4000 RPMs, with more acceleration.

Obviously I can switch to manual for the onramp pulls, but it's annoying that I can't get consistent behavior out of the X3M.

EDIT: Is this a gearing issue? If I'm in 2nd gear 2800 RPMs, the car won't shift into 1st? Do I have to slow down and start the pull in 1st gear?
Appreciate 0
      02-11-2022, 05:22 PM   #2
m630
Major
m630's Avatar
871
Rep
1,001
Posts

Drives: '22 X4M Comp / ‘22 X3
Join Date: Aug 2011
Location: nyc/li

iTrader: (0)

Garage List
‘22 X4MC  [0.00]
Unless in bumper to bumper traffic, why would you ever drive in D and not shift every gear?

A computer will never provide you with the M experience, I’d suggest you try shifting only for a week and see what you are missing!
__________________
'22 X4 ///M Competition…Carbon Black Metallic/Sakhir Orange...pure driving excitement!!! ‘22 X3 Jetblack + some other stuff not from Munich
Dearly departed...'19 X2 M35i
Past lives ‘16 M3…'13 640i GC...'13 335i...'08 M6 ...'05 645Ci...'00 323i...'85 735i...'77 630CSi...'86 325es ...'01 740iL...'09 X3
Appreciate 2
Dobie Dog656.50
BMWM5NYC472.00
      02-11-2022, 05:25 PM   #3
GP0256
Lieutenant
182
Rep
490
Posts

Drives: 2006 MINI GP
Join Date: Jun 2013
Location: Raleigh, NC

iTrader: (0)

I know compared to my F82 with the DCT, this one holds gears a LOT longer. I would start shifting manually and I think you will get the result you want!
Appreciate 0
      02-11-2022, 06:30 PM   #4
weez
Lieutenant
257
Rep
468
Posts

Drives: 2021 X3M Competition
Join Date: Apr 2008
Location: Arizona

iTrader: (0)

I know what you mean. There’s been a few times where it definitely should have downshifted but didn’t and my acceleration was affected. I don’t usually shift myself because I seem to miss the sweet spot on up shifts a lot. I do find myself upshifting manually when the trans holds the gear for an exceptionally long time during spirited acceleration.
Appreciate 0
      02-11-2022, 07:00 PM   #5
Gsavarese
First Lieutenant
203
Rep
363
Posts

Drives: 2021 X3MC
Join Date: Aug 2014
Location: Nj

iTrader: (0)

Garage List
Aren’t these transmissions adaptive ? If you’re puttering around and then floor it maybe that’s why it’s sluggish. As opposed to spirited driving before you attack an on ramp in which case the trans is already “awakened”
Appreciate 1
Ilyam5753.00
      02-12-2022, 08:41 AM   #6
harperium
Stargate Command
517
Rep
625
Posts

Drives: 2021 X3MC
Join Date: Dec 2016
Location: Chicago

iTrader: (0)

Quote:
Originally Posted by Gsavarese View Post
Aren’t these transmissions adaptive ? If you’re puttering around and then floor it maybe that’s why it’s sluggish. As opposed to spirited driving before you attack an on ramp in which case the trans is already “awakened”
I'm not sure about "adaptive" - when on the highway going 70 mph (sports+ d3), if I give it throttle, it readily downshifts so that I'm in the 4000-ish RPM sweet spot. It just doesn't always consistently downshift on the on-ramp pulls.

I'll try manually shifting for a bit.
Appreciate 0
      02-12-2022, 09:04 AM   #7
Gsavarese
First Lieutenant
203
Rep
363
Posts

Drives: 2021 X3MC
Join Date: Aug 2014
Location: Nj

iTrader: (0)

Garage List
Like too many things on modern cars the computer thinks too much. I have a feeling all the sensors prevent aggressive downshifts when attacking an on ramp to prevent spinning or upsetting the balance of the car. There’s so much computing going on in the background when you’re driving you’re unaware of. So so much nannying
Appreciate 0
      02-12-2022, 06:09 PM   #8
STi from DSM
Private First Class
STi from DSM's Avatar
United_States
105
Rep
198
Posts

Drives: 2019 Audi RS5 Sportback
Join Date: May 2020
Location: Champlin MN

iTrader: (2)

Garage List
I have this happen in mine too. I have to manually change it sometimes as it seems to hold it for like 30 seconds.
__________________
2019 Audi RS5 (Mythos Black) (Current)
2020 BMW X3M Competition (SOLD)
2019 Audi RS3 (Mythos Black) (SOLD)

Appreciate 0
      02-13-2022, 08:08 AM   #9
serpentine
Second Lieutenant
118
Rep
232
Posts

Drives: X3M
Join Date: Sep 2020
Location: illadelphia

iTrader: (0)

Maybe she was mad at you.
Appreciate 0
      02-16-2022, 04:38 PM   #10
KayTees
Tuned ///M Cars Only
KayTees's Avatar
Canada
104
Rep
313
Posts

Drives: '21 F87 M2C |'20 F97 X3MC
Join Date: May 2015
Location: Vancouver BC

iTrader: (0)

Garage List
When I lend my car out to staff or even friends who've never driven M cars and not familiar with how to an M gear shifter, I always tell them "you must shift with the paddles" "make sure the dash says 1 and not D1" but they never question me because they all notice I'm always hitting the paddles.
__________________
2020 X3M Competition Stage 2 | Black Metallic Sapphire
2021 M2 Competition | Hockenheim Silver Special Content
Tesla Model 3 Stealth | Wrapped AD Satin Metallic Pearl White

Instagram: F97_KT
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 01:50 PM.




xbimmers
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, 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