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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 01-18-2013, 05:40 PM   #1
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Join Date: Jan 2012
Location: Londonderry
Posts: 280
My Ride: 04 325xi
SMG vs 6MT?

I think this is the correct forum, if not, I apologize.

But I'm in the market for a nice clean E46 M3. I don't know much about the SMG transmissions, except I'm told it's nothing like a regular automatic with tiptronic.

I'm curious, which do you guys prefer? 6MT or SMG?
I think I would want a 6MT as I love slapping the shifter in and out of gears.
The SMG seems nice for someone who may be lazy? I'm really not sure, but I hear horror stories of the SMG pump failing on the E46's.. which scares me a little.

And, if there anyone on the East Coast, in New England with an SMG M3 who would be willing to take me for a ride or show me the basics on it?

I'm Matt. I'm 19, fully employed, blah blah. Thanks for reading!
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Old 01-18-2013, 05:53 PM   #2
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Join Date: Jan 2010
Location: Valparaiso, IN
Posts: 7,756
My Ride: '00 328i
Smg is a manual gearbox with a automatically actuated hydraulic clutch. So it essentially replaces the left pedal and that's it. It doesn't think for itself. It won't change gears at redline. It's not an idiot proof trans like an auto.
It does have an auto mode but it is supposedly rough because there is no torque converter to smooth things out.
It shifts crazy fast and is pretty cool.
It doesn't allow you to slip the clutch which is a downside. It also doesn't allow you to coast in neutral which is a downside IMO.

It's personal preference but they're both manual transmissions.

Last edited by peytonracer4; 01-18-2013 at 05:54 PM.
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Old 01-27-2013, 02:01 AM   #3
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Join Date: Dec 2012
Location: Sacramento, CA
Posts: 250
My Ride: 2003 ZHP 6MT
SMG pumps can simply become a regular maintenance item for an M3, just like cooling system refreshes. I'd go with SMG, but I have never driven it.
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Old 01-31-2013, 11:55 PM   #4
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Join Date: Jan 2013
Location: Australia
Posts: 95
My Ride: E46 M3, YZF-R6
Drive a SMG and see if you like it. I personally love the SMG and have only ever owned manual cars. Do not think of it as an auto, because it simply isn't.
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