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04-15-2009, 10:40 PM
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#1
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2nd Gear Member
Join Date: Mar 2008
Location: Barrie
Posts: 226
Car: 325IS
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For e46 m3 smg owners, how reliable is it?
I konw smg shifts faster, but how reliable is it? after 10k kms??and is there any well known issue about smg? If I need to fix a smg tranny, would it be as easy as 6 speed clutch or it's gona be a $$$ job? Thanks.
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04-15-2009, 11:08 PM
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#2
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Addict
Join Date: Aug 2006
Location: YYZ / ORD
Posts: 6,479
Car: M5
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www.m3forum.net
www.e46fanatics.com
www.e46toronto.ca
There are lots of threads on this topic on those three forums. You're much better off finding better info there. From what I have heard they are pretty damn reliable, only the pump is known to fail on some cars.
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Imola Red / Imola Red ///M5
E60 SSK, Dice iPod, Illuminated ZHP knob, GT Custom Exhaust, BCR Coilovers
'01 330Ci Titanium Silver on Coral Red
'96 328i Jet Black on Black
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04-16-2009, 07:03 AM
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#3
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6th Gear Member
Join Date: Mar 2003
Location: Toronto, ON
Posts: 1,740
Car: 2004 BMW 330Ci ZHP M Performance, E46 M3 cabrio, 650i cabrio, and various other Audi S cars.
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90,0000+ KM and counting, and damn reliable! So far so good.
No clutch/flywheel chatter like my 6spd E46 M3's/non M's.
No slipping, perfect engagement, faster shifts than any 6spd.
So far I'm very impressed! Took a good solid month of driving for me to LOVE the transmission!
Many people whom don't own it, Knock it without any experience. You have to give the transmission a chance to see how great it is.
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 - Click me!! FS: Linea Corse Lemans (calling BBS LM Lovers) 18's Like NEW condition with tires
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04-16-2009, 08:53 AM
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#4
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The King.
Join Date: May 2003
Location: Oakville
Posts: 7,374
Car: Silver 2004 BMW M3
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seen a bunch of threads on m3forum....mostly during the summer, the hydraulic pump has been known to fail or act up on a few of the members cars. seems like an overheating problem but i'm not sure on that. other than that its reliable.
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2004 Silver Gray M3
Mods: Dice Unit, EAS Angel Eyes, Painted Reflectors, CSL Diffuser, Smoked Corners, PSS10s, 15mm Front and 10mm Rear Spacers.
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04-16-2009, 05:01 PM
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#5
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750HP turbo E46 M3
Join Date: Dec 2002
Location: whopbridge
Posts: 1,580
Car: Only 1 Turbo LSB M3 :(
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Not to mention that a HPF stage 3 car making 800+rwhp is SMG with no reported problems thus far.
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04-16-2009, 08:51 PM
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#6
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Banned
Join Date: Aug 2007
Location: Toronto/Calgary
Posts: 1,908
Car: goes pssssh
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They are pretty reliable, besides occasional pump issues as stated above (which is a pretty expensive fix, like $2k). Some people have had issues with them since day 1, but it seems to be pretty rare, and usually only happened in the earlier models.
Transmissions on the 6speed and SMG version is the same. Difference is: Hydraulics which includes the pump and the SMG control unit along with a TON of sensors and stuff. The three most frequent problems are: SMG relay failure ($30), SMG fuses (price varies), and the third is the hydraulic unit (pump itself is around $1500-$2000). Much less frequent issues are the SMG control unit and the transmission itself. To repair, SMG's have been consistently more expensive than manuals, but some argue, it's worth the increased shift time.
And yeah learning how to drive it, you'll probably get a loud bang noise on a hard shift haha
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04-16-2009, 11:40 PM
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#7
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2nd Gear Member
Join Date: Mar 2008
Location: Barrie
Posts: 226
Car: 325IS
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Thanks for the info guys. Great input.
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