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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 02-22-2017, 05:54 AM   #1
Brandon_E4tsixx
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E46 M3 Toast at 100K miles???

Hey guys this is my first post here on the forums. However not my first time being on here. A few months back I bought a 2002 e46 M3
SMG with 94K miles on it. It had been serviced by BMW throughout it's entire life and had carfax reports to back it up. I payed $13,995 for it which seemed reasonable for the shape it seemed to be in. I had even had a PPI done to the car to check for subframe issues and what not. Everything came back solid.

So I purchased the car and drove it normally no reckless driving just basic commuting. 1,000 miles into owning the car it starts to have a misfire. I replaced all plugs and coils but turned out to be the seals on one of the fuel injectors had gone bad so I replaced all of those as well; car was fine after that. My next scheduled service was to be at 100K and at 99K where I am at currently the car will no longer start. You insert the key and just get clicks from the ignition.

I thought this may be a bad relay or something maybe a bad fuel pump. So I took it into the closest independent shop to save a little on the tow and get a general idea for what's wrong with it. They told me that the engine is froze and that I would need to replace the ENTIRE Engine! I know the e46 M3 is an expensive car that has issues from time to time. But to have been serviced like it has and not been abused to die out at under 100K seems odd to me.

Let me know what you guys think. My e46 325i that I had prior to this had been subject to a much rougher life since I was young and didn't make a whole lot of money and it ran strong. Never had to do any major repairs to that guy just maintenance on things you would expect.

Last edited by Solidjake; 02-28-2017 at 05:36 AM. Reason: spacing
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Old 02-22-2017, 06:54 AM   #2
choxor
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Take the plugs out and try to turn the motor over by hand. If you can turn it then find another shop. I'd get a second opinion anyway.
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Old 02-22-2017, 10:51 AM   #3
Brianreed
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Yes get a second shop to take a look.
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Old 02-22-2017, 03:12 PM   #4
grittylonnie
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I had the same problem, it turned out my key was bad and i had to get it replaced, the security system locked me out.
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Old 02-22-2017, 04:31 PM   #5
Brandon_E4tsixx
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Quote:
Originally Posted by choxor View Post
Take the plugs out and try to turn the motor over by hand. If you can turn it then find another shop. I'd get a second opinion anyway.
Gotcha I'll try that out.
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Old 02-22-2017, 07:15 PM   #6
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I went ahead and looked at the engine. Tried turning it by hand with my father. He swears he hears a small rattle almost like something came loose. Still don't really know how that could have happened since I don't rev the engine high when I drive. Does anyone know if it is common for these engines to have things come loose inside the engine?
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Old 02-22-2017, 07:19 PM   #7
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You might have heard a sound from the Vanos. I really don't think this engine could be 'dead' without a noticeable incident. Get a shop or individual with computer system reading software and see what the issues are. I bet its one thing like the immobilizer, key, starter, or something like that.
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Old 02-22-2017, 07:33 PM   #8
Brandon_E4tsixx
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You have heard a sound from the Vanos. I really don't think this engine could be 'dead' without a noticeable incident. Get a shop or individual with computer system reading software and see what the issues are. I bet its one thing like the immobilizer, key, starter, or something like that.
Yeah that was my thought exactly. I'm pretty familiar with these cars, I've been working with them for awhile now and this just doesn't add up to me. The e46 are normally really reliable cars they just cost a bit to maintain. I'll see about getting it towed to the nearest BMW indie shop and see what they say.
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Old 02-28-2017, 02:32 AM   #9
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This is going to become an expensive car for you if you need to take it to the shop every time it has a problem.

1. Were you able to turn the engine by hand? Try a socket on the nut inside the harmonic balancer.
2. When you try to start it and get 'little clicks from the ignition' what do you mean? Is the starter engaging? Solenoid operating? Battery good?
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Old 02-28-2017, 05:58 AM   #10
Brandon_E4tsixx
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This is going to become an expensive car for you if you need to take it to the shop every time it has a problem.

1. Were you able to turn the engine by hand? Try a socket on the nut inside the harmonic balancer.
2. When you try to start it and get 'little clicks from the ignition' what do you mean? Is the starter engaging? Solenoid operating? Battery good?
Well my guess at this point has been that something is wrong in the crankshaft. The battery probably needs to be replaced at some point soon but I had it hooked to a battery charger and it was fully charged when I tried my diagnosis.

Now the best way I can describe the clicks is that it isn't a noise that is coming from inside the car it. It sounds like it comes from the engine. You put the key into the ignition and turn it and what you hear is the car try to crank for like 0.5secs before it just stops. Almost like the timing is off or something. When you try to turn the engine by hand it's a similar story it seems like it wants to go but something is preventing it from doing so. I don't really have access to a lift or anything so it's pretty difficult for me to get under it and diagnose it further. But know that I always investigate the car the best I can before I take it into a shop. As you said it is a very expensive car when you do.
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Old 02-28-2017, 11:46 AM   #11
choxor
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Go to the regional sections of this forum and M3forum and find out which local shop is reputable and EXPERIENCED with M cars.
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Old 02-28-2017, 01:03 PM   #12
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Tap the starter with a hammer and screwdriver. Your starter may be dying.
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Old 03-11-2017, 09:28 PM   #13
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Are you familiar with the "click" sound you get when you turn the key because of either a bad battery or bad battery connection. I replaced the starter on my GMC Yukon because I had the "click" when trying to start. Turned out to be a weak battery cable connection at the battery.
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