|3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.|
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Originally Posted by DougJP
I have a 1992 318i (5 Speed) with the M42 motor. All of a sudden the engine sounds like a diesel engine when running especially at idle. When the engine is revved up the sound isn't quite as loud as it is at idle. I have tried to listen to the engine to see where the noise is coming from but am unable to isolate the noise. There are no warning indicator lights on on the dash. The engine still runs well and if the noise wasn't there you would never know anything was wrong with it. I have checked all the fluids and they all seem to be ok. The engine has about 180K on it. I drove it to Classic BMW service center yesterday and one of the mechanics listened to the sound and immediately told me to turn the engine off. He said they would need to hook it up to a diagnostic machine and said it would cost roughly $300 to find out what the problem was. Not wanting to pay $300, I drove the car home. The engine idles ok and accelerates fine, but the engine definitely doesn't sound right. Since the engine seems to run so well I am hoping the noise isn't anything major, but it sure doesn't sound good. The diesel engine noise starts as soon as the engine turns over and doesn't go away until the engine is shutoff.
Has anyone had this happen to their car ? If so, what was the cause of the noise. I haven't begun to take the engine apart yet and was hoping to get some expertise from this message board.
I appreciate your input.
Originally Posted by 4evrwyntr
I think 92 was last non-vanos? I don't remember... Hmm... I think... I don't remember. Never mind.
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