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Old 10-07-2012, 02:12 AM   #21
DeclanM3
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Quote:
Originally Posted by davide330 View Post
Don't forget the bucking bronco it can become if in 1st/2nd and going around a bumpy intersection. Your hit the bump and your foot lifts off and it goes into stop stall mode which then makes you jerk again, rinse and repeat and it can get quite embarrassing if you don't get it under control.

Or if you try and drive while the car is cold, always had to let mine go two lights out on the warm up dial before trying to drive off, I always would forget at work when going home. The driveway was a steep ramp with speed humps and it just gets a mind of it's own as you slow and hit the hump and it starts bucking, usually a quick stab of the accelerator would fix it but with the speed humps it wasn't an option :-)
I've only got the bucking bill effect a couple of times whilst coming out of my car park in 1st gear. I found that having the tiniest bit of constant throttle solved that problem.

Not sure what you mean about being cold. I generally don't go above 3,000rpm until I'm above 70 degs for oil.
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Old 10-07-2012, 02:14 AM   #22
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Bucking bronco happens on manuals too. Very light throttle (by wire). So sudden movement, car bucks, foot moves, so it bucks again. Process repeats. Take foot off accelerator is the solution for me. Happens mostly when cold for me.

edit: and also happens on E9x M3s in both manual and DCT variants.

Last edited by Shonky; 10-07-2012 at 02:20 AM.
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Old 10-07-2012, 02:20 AM   #23
ating
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^ Yeah I've had this a few times since I've owned the car, but once it's warm it's perfectly fine. It does take a little while to get used to the drive-by-wire though, wished it was cable.
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Old 10-07-2012, 02:25 AM   #24
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It's true when the smg is cold it is more prone to bucking and being relatively jerky through 1-2. It usually does shift more smoothly after its warmed up just a little but off a cold start is a little rough.

Only been driving it for about 2 weeks but gotten used to it, not bad considering I haven't driven a manual in about 5 years. It's pretty simple to learn even if you don't know how to drive a manual. However nothing worse then slowing down, and right as you try to accelerate the car decides its going to shift down into first and bucks...that s**ts me up the wall but only happened twice so can't really complain. Just need to learn to downshift it myself sooner or keep up the throttle to prevent it from downshifting by itself
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Old 10-07-2012, 03:06 AM   #25
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Interesting and informative thread: It makes me actually willing to consider the SMG (I'm on the lookout for a E46 M3). Funny about the "bucking": My Steptronic E39 540i would downshift by itself when braking: on a cold engine, down my hill, it used to freak me out until I got used to it: you had to anticipate it as it was quite violent at times...
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Old 10-07-2012, 04:34 AM   #26
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I find if you move your foot right so you're pushing it up against the trim to the right of the accelerator pedal you are far less jerky with the accelerator over bumps. I often do this on my way out of my car park as I have to go down 3 levels and over 4 speed bumps when my car is cold.
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Old 10-07-2012, 09:50 AM   #27
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Opinion change.
After some spirited driving at the SAM, which I've never done before in the M, I have a new view on the smg gearbox. Normal driving it's not really that great but when spirited/tracked, it's like twice as good (for non professionals)
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Old 10-07-2012, 04:42 PM   #28
DeclanM3
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Opinion change.
After some spirited driving at the SAM, which I've never done before in the M, I have a new view on the smg gearbox. Normal driving it's not really that great but when spirited/tracked, it's like twice as good (for non professionals)
If you think SMG is good on mountain runs wait until you get it to the track! The harder you push the car the better SMG becomes
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Old 10-07-2012, 09:20 PM   #29
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Quote:
Originally Posted by DeclanM3 View Post
If you think SMG is good on mountain runs wait until you get it to the track! The harder you push the car the better SMG becomes
A salesman once told me this about when i was interesting in an E36M3 (SMGI)
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Old 10-07-2012, 10:44 PM   #30
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A salesman once told me this about when i was interesting in an E36M3 (SMGI)
Manual e36 over smg1 but for the e46 smg2 over manual
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Old 10-07-2012, 11:22 PM   #31
DesiredM
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Manual e36 over smg1 but for the e46 smg2 over manual
I agree but I think it depends on the driver....hopefully that comment though doesn't start a massive debate haha
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Old 10-08-2012, 12:44 AM   #32
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I really want to give an SMG M3 a go. Ive only driven a couple of manual M3.

Do any of you guys left foot brake it and give it some throttle on the downshifts.?. i think thats what id do to make it a smooth shift ..
There's no need, it is completely smooth if you change down at the correct revs... Same as a manual in that respect.
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Old 10-08-2012, 01:00 AM   #33
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Manual e36 over smg1 but for the e46 smg2 over manual
AMEN.

Driven both. Owned both. Couldn't agree more.
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Old 10-08-2012, 02:11 AM   #34
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There's no need, it is completely smooth if you change down at the correct revs... Same as a manual in that respect.
Define correct revs?
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Old 10-08-2012, 03:32 AM   #35
DeclanM3
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Define correct revs?
Hitting at least 6,000 every downshift
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Old 10-08-2012, 03:50 AM   #36
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Define correct revs?
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Originally Posted by DeclanM3 View Post
Hitting at least 6,000 every downshift
But officer... 5,800 is my redline.
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Old 10-08-2012, 04:05 AM   #37
DeclanM3
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But officer... 5,800 is my redline.
Just until you get an M car
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Old 10-08-2012, 04:29 AM   #38
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Define correct revs?
engine revs matches road speed
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Old 10-09-2012, 07:00 AM   #39
Honro
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Tip - To avoid the mini clutch dump, just hold the down shift paddle when comming to a stop. It engages the clutch enough so when you take off it doesnt dump it

This even works when your stopped on an uphill and it will engage the clutch so the car doesnt roll back

(its in your owners manual) hehe
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Old 10-09-2012, 07:29 AM   #40
DeclanM3
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Tip - To avoid the mini clutch dump, just hold the down shift paddle when comming to a stop. It engages the clutch enough so when you take off it doesnt dump it

This even works when your stopped on an uphill and it will engage the clutch so the car doesnt roll back

(its in your owners manual) hehe
Will try that but the issue I have is more when I try to take off mid way through the car changing from 2nd to 1st. Obviously the easiest way to overcome this is shift into first using the down paddle but on occasion I forget. It's pretty rare though.
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