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///M3 Forum
The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

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Old 11-12-2012, 10:10 AM   #21
Mircea's M3
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Thank you very much I appreciate it
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Old 11-12-2012, 12:55 PM   #22
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mmm
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Old 11-12-2012, 01:24 PM   #23
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maybe you have a sticky throttle?
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Old 11-12-2012, 07:38 PM   #24
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I know I find it so hard to believe that the different size wheels would do this but who knows
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Old 11-12-2012, 07:49 PM   #25
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I guess we will find out as soon as my bud brings me his wheels..
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Old 11-17-2012, 10:21 PM   #26
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try getting it on video and posting it here so ppl can try to see what is actually happening
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Old 11-18-2012, 02:09 PM   #27
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So i figured out today if I take off the traction control it stops doing it. So like Dreamwerke said it has to do with the different size in wheels front to back. Traction control is trying to make up for the diference
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Old 11-18-2012, 02:11 PM   #28
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That's good to know, because I still haven't gotten new tires or a full set of 1 size to keep on
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Old 11-20-2012, 02:14 PM   #29
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You do not have drive-by-wire, your throttle just got stuck, has happened to me as well. You can find that behind the firewall, drivers side, my cable fell out at 5400 rpm - never happened again, just a freak thing.
All E46 M3s are drive-by-wire

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And I have 19 inch rims in the back,
So I wonder if because they don't spin at the same rate the computer gets confused
What are the actual tire sizes?
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Old 11-20-2012, 02:47 PM   #30
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Originally Posted by berserker View Post
You do not have drive-by-wire, your throttle just got stuck, has happened to me as well.
http://en.wikipedia.org/wiki/BMW_M3#E46_M3


Meh, all E46 ///M's have fly-by-wire throttle.
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Old 11-20-2012, 03:34 PM   #31
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Tires in the back are tall 255/40/19
Front is 225/45/17
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Old 11-20-2012, 05:42 PM   #32
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Tires in the back are tall 255/40/19
Front is 225/45/17
And this issue doesn't happen once you turn the DSC off correct?


Absolutely 100% it's the mismatched wheel size(s). The car's stability control/traction control is confused by the difference in size from front to rear.

If I can ask, why are you running 17's in the front?
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Old 11-20-2012, 05:59 PM   #33
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That's correct
I got a flat on my 19 in the front, and I only had 2 winter tires on my winter wheels, so I put them on and I'm in process of getting two more winter tires for my other pair of 17s

So for now I have a ghetto setup lol
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Old 11-20-2012, 06:44 PM   #34
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That's correct
I got a flat on my 19 in the front, and I only had 2 winter tires on my winter wheels, so I put them on and I'm in process of getting two more winter tires for my other pair of 17s

So for now I have a ghetto setup lol
Copy that. Ya gotta do what ya gotta do ! Sucks about the flat, sounds like you just need to run her w/o DSC (carefully ) until you get the new replacement 19" tires. Use the force !
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Old 11-20-2012, 08:11 PM   #35
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we have no snow yet so I'm safe!
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Old 11-20-2012, 08:44 PM   #36
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Check for toyota parts
hahaha hilarious
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Old 11-21-2012, 12:31 AM   #37
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Tires in the back are tall 255/40/19
Front is 225/45/17
That'll do it.

Why are you running such tall tires on the 19s out of curiosity?
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Old 11-21-2012, 10:40 AM   #38
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Originally Posted by TerraPhantm View Post
That'll do it.

Why are you running such tall tires on the 19s out of curiosity?
Because DRAG racecar bro.... LOL Couldn't resist.
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Old 11-21-2012, 11:04 AM   #39
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I ran 235/40/19 front and 265/35/19 rear and had no issues - the aspect ratio does seem to be a bit high on the rear tires (aside from the obvious 17" wheel issue up front).
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Old 11-21-2012, 07:27 PM   #40
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Can't wait to get them matched again
Looks like a drag car lol
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