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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 09-26-2012, 12:21 AM   #1
|RoM3ro|
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Help with my M3

I bought a 2003 M3 manual a year ago. I haven't had any problem until yesterday when I turned it on to drive it and the car started shaking as soon as the (service engine soon) popped up . When I accelerate the car does not respond as its suppose to. I have to accelerate more than the usual. The shaking does not go away.
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Old 09-26-2012, 01:25 AM   #2
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Get codes read. It's probably misfiring. Check which cylinder.
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Old 09-26-2012, 04:07 AM   #3
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Sounds like your cylinders are misfiring. Could be coils or plugs.
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Old 09-26-2012, 09:25 AM   #4
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probably coils,bremi has problems
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Old 09-26-2012, 09:35 AM   #5
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Coils... Plugs ... Get the codes read. Like everyone said.
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Old 09-26-2012, 10:14 AM   #6
2002topasblueM3
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Pray when you scan it you don't get the code p00013 or something like that. The code I'm talking about would translate into camshaft time actuator over retarded or something along the lines of that. Basically a new exhaust hub or oil pump in your vanos. Sometimes both. I really hope it's something simple like your coils or spark plugs but I'm afraid you may be looking at a new vanos. But good luck. Also your timing could be thrown off which would give you the same problem so take a look at that too
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Old 09-26-2012, 10:15 AM   #7
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Most likely ignition coils, as many have stated. Cheapest place online for replacement coils I've found was http://www.rockauto.com

Bosch ignition coil, part number 00124, $25.79

Amazon.com also sells them for $30 with free shipping.
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Old 09-26-2012, 12:32 PM   #8
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Hopefully it's just a coil, those are cheap and easy. Grab a Peake Reader (LINK) or another BMW specific code reader and figure out what the codes are.
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Old 09-27-2012, 02:51 AM   #9
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Yep get the bosch coils and replace all 6. If thats the prob of course. I got mine online for $34 each instead of $88 at dealer. Anyone know where to get replacement factoryish looking speedo cluster that goes 200 mph or more?
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Old 09-27-2012, 02:57 PM   #10
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Thank you guys, I went to a mechanic and it was the coils. So I'll just buy them online and he going to replace them for 60$.
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Old 09-27-2012, 03:21 PM   #11
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You can't replace then yourself? It's pretty easy bro. Use that 60 bucks towards some beer!
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Old 09-27-2012, 05:29 PM   #12
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I agree with Illistminimike
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Old 09-27-2012, 06:12 PM   #13
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Quote:
Originally Posted by 2002topasblueM3 View Post
I agree with Illistminimike
It's cuz we both got Topaz bro!
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Old 09-27-2012, 07:42 PM   #14
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Topaz is the only way to go ladies love it
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Old 09-27-2012, 08:25 PM   #15
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Lol
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Old 09-27-2012, 08:54 PM   #16
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$60? For like 15min of work ? ...okay.
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Old 09-30-2012, 02:02 AM   #17
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For sure do it yourself. Unless u are scared of breaking the coil connectors and the shop is going to fix anything they wreck. But wait... Of course they wont tell u about it if they did but you'll figure it out about 100 miles from home
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Old 10-02-2012, 12:50 PM   #18
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Maybe off base, but what was your fuel level?
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Old 10-05-2012, 04:22 PM   #19
|RoM3ro|
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I finally replaced my my coil. Car works perfect. I'm thankful for the help you guys saved me a lot of money. And how do I get rid of the (service engine) light
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Old 10-05-2012, 06:30 PM   #20
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It'll go away on its own.
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