Shift points for AT

dab3 · 02-03-2010, 11:20 AM

(I posted this in another thread but I don't think anyone noticed, at least no one responded so here it is again)

Does anyone else get frustrated when your AT downshifts at 1000 rpm in M-mode. I'm coming from a manual (Audi S4) to a 335i AT w/paddle shifters and when I want to run downhill with the least amount of engine braking I'm accustomed to shifting into a high gear, but the AT program in M-mode up shifts at what seems like an excessively high, 1000 rpm. Its frustrating. Is there anyway to reprogram this? If I were driving a MT I wouldn't shift up until the engine started lugging at ~500 rpm.

Or, what about shifting into neutral? Seems like a bad idea to me. Any harm shifting in and out of neutral?

Thanks.

bsamoul · 02-03-2010, 11:24 AM

Only problem with neutral is you have to apply the brake to get out of it.

HighlandPete · 02-03-2010, 12:23 PM

Autos can protect themselves from guys who allow high performance engines to start lugging.

Seriously, 1,000 rpm is not high is it? There will be a bit of variation around that figure, according to how hard you are driving.

HighlandPete

zzzbullseye · 02-03-2010, 12:23 PM

So it's downshifting to a lower gear before you want it to, as you're coasting downhill and off the throttle? I don't think this is adjustable. This really isn't an issue for me, but I guess it's something you're noticing coming from a MT?

dab3 · 02-03-2010, 05:55 PM

Yes, its going into a lower gear before I want it to. I wonder what happens on the other side, does it shift just below redline? I have not tried this.

As long as you are moving you do not need to apply the brake to shift out of neutral. That restriction only seems to be enabled when you are stopped. I haven't tried this on my 335i but I played around with it quite a bit a loner 328.

I think 1000 rpm is too high for a downshift. I still feel significant engine braking and the engine doesn't appear to be near where it would loose power (lugging). Maybe some of you MT guys can let me know.

Quote:

Originally Posted by zzzbullseye

So it's downshifting to a lower gear before you want it to, as you're coasting downhill and off the throttle? I don't think this is adjustable. This really isn't an issue for me, but I guess it's something you're noticing coming from a MT?

nyc3r · 02-03-2010, 06:21 PM

just shift back to D mode and it should downshift at lower rpm

persian54 · 02-03-2010, 09:22 PM

maybe you should've gotten a stick again?

02-03-2010, 11:20 AM	#1
dab3 New Member 0 Rep 14 Posts Drives: 335i Join Date: Dec 2009 Location: Chicago iTrader: (0)	Shift points for AT (I posted this in another thread but I don't think anyone noticed, at least no one responded so here it is again) Does anyone else get frustrated when your AT downshifts at 1000 rpm in M-mode. I'm coming from a manual (Audi S4) to a 335i AT w/paddle shifters and when I want to run downhill with the least amount of engine braking I'm accustomed to shifting into a high gear, but the AT program in M-mode up shifts at what seems like an excessively high, 1000 rpm. Its frustrating. Is there anyway to reprogram this? If I were driving a MT I wouldn't shift up until the engine started lugging at ~500 rpm. Or, what about shifting into neutral? Seems like a bad idea to me. Any harm shifting in and out of neutral? Thanks.
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02-03-2010, 11:24 AM	#2
bsamoul Major General 165 Rep 7,433 Posts Drives: E90 325i Join Date: Feb 2007 Location: Walnut Creek, California iTrader: (2)	Only problem with neutral is you have to apply the brake to get out of it. __________________ -Brian 2X 2006 BMW 325i [Electric Red & Mystic Blue] \| ZPP \| V1 \| Rear Fogs \| M3 Lip Spoiler \| EAS RemoteKey \| BMS Powerbox \| Projector90 Headlights w/ LED AE \| LED plate lights \| OEM Blacklines http://www.tech-shine.com
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02-03-2010, 12:23 PM	#3
HighlandPete Lieutenant General 6659 Rep 15,858 Posts Drives: BMW F11 535i Touring Join Date: Mar 2007 Location: Scotland, Highland Region iTrader: (0)	Autos can protect themselves from guys who allow high performance engines to start lugging. Seriously, 1,000 rpm is not high is it? There will be a bit of variation around that figure, according to how hard you are driving. HighlandPete
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02-03-2010, 12:23 PM	#4
zzzbullseye BMW Addict 102 Rep 792 Posts Drives: 2011 550i (F10) Join Date: Nov 2009 Location: St. Louis iTrader: (4)	So it's downshifting to a lower gear before you want it to, as you're coasting downhill and off the throttle? I don't think this is adjustable. This really isn't an issue for me, but I guess it's something you're noticing coming from a MT? __________________ '11 Black Sapphire F10 550i l ZSP l Avant Garde 20" M310
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02-03-2010, 06:21 PM	#6
nyc3r Colonel 112 Rep 2,589 Posts Drives: E90 Join Date: Jun 2006 Location: USA iTrader: (24)	just shift back to D mode and it should downshift at lower rpm __________________ FS: Interior Parts - Msport knob, split armrest etc FS: Interior Parts Msport wheel, Msport knob, Boot, Idrive, FS: BMW factory oil change kit
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02-03-2010, 09:22 PM	#7
persian54 Lieutenant General 923 Rep 15,818 Posts Drives: M760/G83M4 Join Date: Jun 2009 Location: The Valley, SoCal iTrader: (298)	maybe you should've gotten a stick again? __________________ From E93 335i to E89 Z4 to E93 M3/E89 Z4 to E350/SL550
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