Quote:
Originally Posted by ULOST1320
I had a similar noise but it was more of a humming/roar and it ended up being the alternator. Just a FYI guys
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I have this really weird ticking noise, other than the well-known ticking sound the engine has.
I drive a 316i with a stock 1.6l, so the original N52 ticking is not really distinguishable or disturbing, but at night, when the neighborhood is calm and quiet, the engine is warm, so it's idling at about 650 rpm, AC is off this weird ticking starts appearing and vanishing. I popped up the hood, put my head close to the engine and listened. This sound is not from the engine block itself.
https://drive.google.com/file/d/132C...ew?usp=sharing
This recording is from a microphone I attached to the engine for a couple of minutes and left it idling, 3 seconds from the start of this clip, the sound appears, it lasts for 5 seconds, and then disappears.
please refer to this sound and compare it the one you had, is it in anyway close to what you heard?
someone told me this can be the belt, worn out or something, but it seems in good condition.