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3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.

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Old 02-18-2007, 06:36 PM   #1 (permalink)
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need help please !

While driving, check the engine light came on.Now car is shaking when idling with thumping sound, but rpm are not affected any way(stable as usual).Any idea please?
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Old 02-18-2007, 11:14 PM   #2 (permalink)
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YOu will need to have the codes read on your car. In Germany, I don't know if there is anywhere where you can have that done for free

Can you go into further detail regarding your problem? How does teh car drive? Does it sputter and shake, etc.? For some reason I am thinking misfiring, but a check engine light can mean any of several things.
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Old 02-19-2007, 06:20 AM   #3 (permalink)
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"sputter and shake"-that is exactly what is happening,but as I said, RPM are perfectly in tact.While driving above 40mph you can not feel anything is wrong ,except thumping sounda(like something is out of balance).
Thanks for your replay.My first impression is that coil on one or more cylinders went bad, but I do not know...used:
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Old 02-19-2007, 09:19 AM   #4 (permalink)
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Oh yeah, the rpm will not be affected. Cylinder misfires are very often linked to bad spark plugs or coils. I would first make sure and get the codes pulled, even if that meant having to pay for it.
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Old 02-19-2007, 07:44 PM   #5 (permalink)
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Problem found and solved !I have replaced a coil on fifth cylinder and instal a new thermostat.
Thanks again for your help!

Last edited by Bambus; 02-19-2007 at 07:47 PM.
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