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M-Series (M1, M3, M5, M6) General M-Series Discussion - If it does not fit into a more specific M Category above, please place it in here. In addition, previously archived M-Series discussion is located in this section.

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Old 02-17-2005, 10:20 AM   #1 (permalink)
n00b
 
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Need-4-Speed is an unknown quantity at this point
Back in January, cylinder #6 in my 1998 M3 stopped functioning and the Check Engine light came on. Further inspection revealed a melted coil. I replaced the coil and the problem persisted, melting another coil. Unable to figure out what was wrong, I took the car to my local BMW shop (not a dealer) and here's what they did:

Replaced coil and injector. Did not cure the problem.
Checked the wiring harness. Found nothing wrong.
Replaced the ECM and this cured the problem for about 5 days, at which time, the problem returned.

Does anyone out there have any idea what could be wrong? I've spent $500 in diagnostics with this guy, who is not fixing the problem. (The rest was covered my warranty) I want to be sure he is not just stringing me along.

Thanks to anyone who can shed some light on this.
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Old 02-17-2005, 11:36 PM   #2 (permalink)
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Live_the_Curves is an unknown quantity at this point
something like this should be seen by the dealership.
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Old 02-21-2005, 08:52 AM   #3 (permalink)
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Need-4-Speed is an unknown quantity at this point
The dealership put in another brand-new ECM and so far the car is running fine. What are the odds of 2 of those things going bad within 1 month?
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Old 02-21-2005, 08:20 PM   #4 (permalink)
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POWER///M is an unknown quantity at this point
Test your distributor.
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Old 02-22-2005, 02:13 PM   #5 (permalink)
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xsperf is an unknown quantity at this point
i may be wrong, but he has coils, which means no distributor , right?
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