lets talk transmissions.

jetblk328i · 01-06-2008, 05:09 PM

well i know that the difference between the ZF and the GM transmission is huge, but my 328i seems very jerky, its starts off slow then jerks you backward, i know that the tranny learns how you drive but what is going on?

e90BMW328xi · 01-06-2008, 10:16 PM

i have the same problem my car in drive when i press the gas it seems to rev 15000 rpm before i can really feel the gear catch. its seems the tranny is delayed or some shit its not smooth and it does jerk sometimes its pissing me off i only have 600 miles on my car and its automatic 328xi. im going to take it to the dealer tommorrow and ask them to update my steptronic and whatever else they might think is wrong gluck bro

majin ssj eric · 01-07-2008, 12:05 AM

Quote:

Originally Posted by e90BMW328xi

i have the same problem my car in drive when i press the gas it seems to rev 15000 rpm before i can really feel the gear catch.

You got BMW's F1 engine in there or something???

Xeloj · 01-07-2008, 12:33 AM

Are you guys driving in D or DS mode? I drive in DS mode all the time. I know "D" mode is more gas efficient and I'll use it on long drives but DS mode is my daily commuter mode.

It seems fine to me when I shift, then again this is my first BMW.

jetblk328i · 01-07-2008, 04:17 PM

i drive in D mode, and the jerkieness is pretty big, i got a software update for the step, its better, but still bad.

Xeloj · 01-07-2008, 04:22 PM

Quote:

Originally Posted by jetblk328i

i drive in D mode, and the jerkieness is pretty big, i got a software update for the step, its better, but still bad.

Ah that explains it a bit more. Driving in "D Mode" shifts a lot quicker to the next gear (holds less power per gear, less gas combusted, more fuel effeicient). That "jerkiness" you feel seems to be the shift from 1st to 2nd too quickly.

Drive in DS mode, it's more fun, and you can control when you shift, and get less jerkiness.

Gort · 01-07-2008, 04:32 PM

Aren't those transmissions made in France? It could explain this jerkiness.

BK · 01-07-2008, 04:33 PM

Could it be the "start off assist" that you're feeling? I.e., the brakes continue to hold for a second after you let off the brake pedal. In the E90 AT models I've driven, that feature -- which should be an MT-only feature for starting on a hill -- was noticeable and annoyed the hell out of me.

Xeloj · 01-07-2008, 04:34 PM

Quote:

Originally Posted by BK

Could it be the "start off assist" that you're feeling? I.e., the brakes continue to hold for a second after you let off the brake pedal. In the E90 AT models I've driven, that feature -- which should be an MT-only feature for starting on a hill -- was noticeable and annoyed the hell out of me.

Wow, didn't know about the SOA. I need to ready the manual about how to disengage it. Thanks for the 411.

Cerezo · 01-07-2008, 04:40 PM

i can hardly feel gear shifts for normal driving. maybe there is a considerable difference between the ZF and GM?

Saintor · 01-07-2008, 04:55 PM

When I see threads like this, I would be more inclined to buy a '06 330i than a '07 328i. So did switching off SOA change anything?

jetblk328i · 01-07-2008, 09:17 PM

im not sure you can switch off soa, the tranny got better after my 1st oil change....interesting.

Year's_End · 01-07-2008, 09:41 PM

I don't know what DS is like in the GM tranny, but I think it's overly aggressive in the ZF for daily commuting; holds it near 2k too much. I either shift manually or just leave it in D.

raleedy · 01-07-2008, 09:50 PM

Doesn't the Hydra-Matic start off in 2nd when in D?

jwilburn · 01-08-2008, 03:06 PM

Sorry new hear and still searching. But can you turn off the SOA/Hill assist. I mean its nice and all on a hill, but its making parallel parking a little challenging when I try to ease back in reverse and I dont go anywhere. I am afraid its going to disengange and I will slam into the car behind me.

raleedy · 01-08-2008, 03:12 PM

Quote:

Originally Posted by jwilburn

Sorry new hear and still searching. But can you turn off the SOA/Hill assist. I mean its nice and all on a hill, but its making parallel parking a little challenging when I try to ease back in reverse and I dont go anywhere. I am afraid its going to disengange and I will slam into the car behind me.

I'm not aware of any way to turn that off. Just wait 2 sec.

calle_enell · 01-08-2008, 06:02 PM

Quote:

Originally Posted by jwilburn

Sorry new hear and still searching. But can you turn off the SOA/Hill assist. I mean its nice and all on a hill, but its making parallel parking a little challenging when I try to ease back in reverse and I dont go anywhere. I am afraid its going to disengange and I will slam into the car behind me.

How do you turn the SOA off?? Nothing about that in the manual...

raleedy · 01-08-2008, 10:24 PM

^^

Xeloj · 01-08-2008, 10:26 PM

Quote:

Originally Posted by Bimmer Loyalist

I don't know what DS is like in the GM tranny, but I think it's overly aggressive in the ZF for daily commuting; holds it near 2k too much. I either shift manually or just leave it in D.

It's a bit aggressive with the GM transmission too. It holds the gear a lot longer than I'd like sometimes but hey, that's why we can manually shift, right?

AltecBX · 01-08-2008, 10:49 PM

ZF in the 335?
GM in the 328?
What's the difference?
I thought the 335, 535 and the M5 shared the same tranny?

akhter · 01-09-2008, 12:25 AM

Quote:

Originally Posted by Xeloj

Ah that explains it a bit more. Driving in "D Mode" shifts a lot quicker to the next gear (holds less power per gear, less gas combusted, more fuel effeicient). That "jerkiness" you feel seems to be the shift from 1st to 2nd too quickly.

Drive in DS mode, it's more fun, and you can control when you shift, and get less jerkiness.

I have the lag as well, i am getting used to it or maybe it learned a bit about my driving, not sure.

Not sure about 328, but in 335, D starts in 2nd and shifts to 3rd very quickly. go to DS or manually downshift to 1st to see what its like to start a 300hp engine in 1st

there is a lot of powerbraking

e90BMW328xi · 01-09-2008, 12:27 AM

how about the 328xi brooooohaaaMMMMM!!!! SAME THING STARTS IN 2nd IN (D)rive?

01-06-2008, 05:09 PM	#1
jetblk328i Colonel 309 Rep 2,458 Posts Drives: X3 M40i Join Date: Mar 2007 Location: Central PA iTrader: (1)	lets talk transmissions. well i know that the difference between the ZF and the GM transmission is huge, but my 328i seems very jerky, its starts off slow then jerks you backward, i know that the tranny learns how you drive but what is going on?
	Appreciate 0 Tweet Quote

01-06-2008, 10:16 PM	#2
e90BMW328xi e90cloudeN 4 Rep 47 Posts Drives: 2008 Black BMW 328xi & BMW X5 Join Date: Dec 2007 Location: mi$$ouri iTrader: (0)	i have the same problem my car in drive when i press the gas it seems to rev 15000 rpm before i can really feel the gear catch. its seems the tranny is delayed or some shit its not smooth and it does jerk sometimes its pissing me off i only have 600 miles on my car and its automatic 328xi. im going to take it to the dealer tommorrow and ask them to update my steptronic and whatever else they might think is wrong gluck bro
	Appreciate 0 Quote

01-07-2008, 12:33 AM	#4
Xeloj Banned 22 Rep 593 Posts Drives: 2008 E90, 2006 E60 Join Date: Nov 2007 Location: Orange, California - Orange County aka The OC iTrader: (0) Garage List 2006 525i [0.00] 2008 328i [0.00]	Are you guys driving in D or DS mode? I drive in DS mode all the time. I know "D" mode is more gas efficient and I'll use it on long drives but DS mode is my daily commuter mode. It seems fine to me when I shift, then again this is my first BMW.
	Appreciate 0 Quote

01-07-2008, 04:17 PM	#5
jetblk328i Colonel 309 Rep 2,458 Posts Drives: X3 M40i Join Date: Mar 2007 Location: Central PA iTrader: (1)	i drive in D mode, and the jerkieness is pretty big, i got a software update for the step, its better, but still bad.
	Appreciate 0 Quote

01-07-2008, 04:32 PM	#7
Gort Klaatu Barada Nikto 28 Rep 1,169 Posts Drives: 2017 X3-35i Join Date: Apr 2007 Location: A Bipolar Planet iTrader: (0)	Aren't those transmissions made in France? It could explain this jerkiness.
	Appreciate 0 Quote

01-07-2008, 04:33 PM	#8
BK Smiling politely 165 Rep 7,931 Posts Drives: 330i Join Date: Feb 2006 Location: Washington DC iTrader: (0) Garage List 2006 330i [9.00]	Could it be the "start off assist" that you're feeling? I.e., the brakes continue to hold for a second after you let off the brake pedal. In the E90 AT models I've driven, that feature -- which should be an MT-only feature for starting on a hill -- was noticeable and annoyed the hell out of me. __________________ E90 330i Black Sapphire 6MT \| 991.1 C4 Platinum Silver 7MT
	Appreciate 0 Quote

01-07-2008, 04:40 PM	#10
Cerezo Second Lieutenant 6 Rep 254 Posts Drives: 08 TL Type-S Join Date: Jun 2006 Location: Seattle iTrader: (0)	i can hardly feel gear shifts for normal driving. maybe there is a considerable difference between the ZF and GM?
	Appreciate 0 Quote

01-07-2008, 04:55 PM	#11
Saintor Banned 79 Rep 2,446 Posts Drives: E90 Join Date: Sep 2005 Location: MTL, Canada iTrader: (1)	When I see threads like this, I would be more inclined to buy a '06 330i than a '07 328i. So did switching off SOA change anything?
	Appreciate 0 Quote

01-07-2008, 09:17 PM	#12
jetblk328i Colonel 309 Rep 2,458 Posts Drives: X3 M40i Join Date: Mar 2007 Location: Central PA iTrader: (1)	im not sure you can switch off soa, the tranny got better after my 1st oil change....interesting.
	Appreciate 0 Quote

01-07-2008, 09:41 PM	#13
Year's_End Lieutenant General 1138 Rep 12,444 Posts Drives: 2020 Shelby GT350 Join Date: Feb 2007 Location: FL iTrader: (0)	I don't know what DS is like in the GM tranny, but I think it's overly aggressive in the ZF for daily commuting; holds it near 2k too much. I either shift manually or just leave it in D. __________________ Past: '08 E92 335i\|ZPP\|ZSP\|6AT Past: '15 Mustang GT\|401A\|PP\|6MT Current: '20 Shelby GT350\|6MT
	Appreciate 0 Quote

01-07-2008, 09:50 PM	#14
raleedy Colonel 160 Rep 2,248 Posts Drives: 2016 228i 6-speed Join Date: Jul 2005 Location: Portland, Oregon iTrader: (0)	Doesn't the Hydra-Matic start off in 2nd when in D?
	Appreciate 0 Quote

01-08-2008, 03:06 PM	#15
jwilburn Enlisted Member 0 Rep 46 Posts Drives: 07 328i SG/B Join Date: Dec 2007 Location: DC iTrader: (0)	Sorry new hear and still searching. But can you turn off the SOA/Hill assist. I mean its nice and all on a hill, but its making parallel parking a little challenging when I try to ease back in reverse and I dont go anywhere. I am afraid its going to disengange and I will slam into the car behind me.
	Appreciate 0 Quote

01-08-2008, 10:24 PM	#18
raleedy Colonel 160 Rep 2,248 Posts Drives: 2016 228i 6-speed Join Date: Jul 2005 Location: Portland, Oregon iTrader: (0)	^^
	Appreciate 0 Quote

01-08-2008, 10:49 PM	#20
AltecBX Colonel 324 Rep 2,663 Posts Drives: BMW 335xi Sedan; BMW M3 ZCP Join Date: Nov 2007 Location: NYC iTrader: (0) Garage List 2018 BMW M3 ZCP [0.00] 2007 BMW 335Xi [0.00]	ZF in the 335? GM in the 328? What's the difference? I thought the 335, 535 and the M5 shared the same tranny?
	Appreciate 0 Quote

01-09-2008, 12:27 AM	#22
e90BMW328xi e90cloudeN 4 Rep 47 Posts Drives: 2008 Black BMW 328xi & BMW X5 Join Date: Dec 2007 Location: mi$$ouri iTrader: (0)	how about the 328xi brooooohaaaMMMMM!!!! SAME THING STARTS IN 2nd IN (D)rive? __________________ 2008 black / black 328xi - llumar 35% tint -
	Appreciate 0 Quote