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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Sun, Jun-28-2009, 11:45:17 AM   #21
SmallShark
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i think i have that all the time.

it is a computer trying to drive a manual car. it just cant be perfect
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Old Sun, Jun-28-2009, 04:03:21 PM   #22
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same problem here... ive learned to live with it... i was in D.C. yesturday with some friends in my car and in low RPM's and low gears mixed with the "smooth" D.C. roads that they have and my car was bucking and knocking the whole time... my friends in the back seat were asking me if i had somebody in the trunk from all the sounds they heard... (all the clunking)... i was laughing.. its just the nature of the beast...
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Old Thu, Apr-13-2017, 02:32:06 PM   #23
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Default Re: Jolt in SMG when "natually" slowing down?

Old thread revival

So was the consensus that the car just does this, not an "actual" problem.

Funny, mine is imola red too! Whoever said this might be happening to exclusively imolas might be on to something

By the way, I hear kinda a clacking of sorts with my deceleration. Same exact thing though -- decelerating in 2nd and right at 1500rpm she buck a little.. Kinda annoying
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Old Thu, Apr-13-2017, 03:52:54 PM   #24
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Default Re: Jolt in SMG when "natually" slowing down?

I just bought my third SMG car. I'll test and report back.
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Old Thu, Apr-13-2017, 04:17:00 PM   #25
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Default Re: Jolt in SMG when "natually" slowing down?

Even with a practiced hand/foot, 1st-to-2nd and sometimes 2nd-to-3rd shifts under 3k RPM, particularly at low speed will just sometimes be clunky.
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Old Thu, Apr-13-2017, 04:37:58 PM   #26
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Default Re: Jolt in SMG when "natually" slowing down?

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Originally Posted by m3nt0s View Post
Even with a practiced hand/foot, 1st-to-2nd and sometimes 2nd-to-3rd shifts under 3k RPM, particularly at low speed will just sometimes be clunky.
This, been perfecting my smg skills for about a year, biggest revelation being, knowing how to drive with both feet on gas/break, i rarely get jolts or clunks anymore, just a lot of pedal play, and city practice.
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Old Thu, Apr-13-2017, 06:04:55 PM   #27
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Default Re: Jolt in SMG when "natually" slowing down?

That's not what the OP is describing^^.

He's saying that while staying in the same gear and letting the car decel, off throttle, there is a jerk under 2k rpm.
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Old Thu, Apr-13-2017, 06:58:53 PM   #28
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Default Re: Jolt in SMG when "natually" slowing down?

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Originally Posted by EricSMG View Post
That's not what the OP is describing^^.

He's saying that while staying in the same gear and letting the car decel, off throttle, there is a jerk under 2k rpm.
That also sounds like typical SMG behavior.
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Old Thu, Apr-13-2017, 08:19:59 PM   #29
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Default Re: Jolt in SMG when "natually" slowing down?

Sounds typical from my experience. I don't think mine is that bad with a fresh set of OE motor mounts, UUC poly transmission mounts, and a new flex disk/csb.

It's a manual transmission and I think a lot of people like to think the SMG is going to shift like a automatic transmission with a torque converter.
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Old Fri, Apr-14-2017, 08:33:48 PM   #30
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Default Re: Jolt in SMG when "natually" slowing down?

As I suspected, this has nothing to do with SMG (how could it considering there is no shifting happening). All that is happening is a very slight change in engine braking in the ~1500rpm range.
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Discussing Jolt in SMG when "natually" slowing down? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)