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M3 cold start last year or so noise
Real quick. After I do an oil change the first start sounds like the engine is tearing itself apart on the first start I assume due to lack of oil on the timing chain, guides and lifters.
Recently the last couple of weeks if I let the car sit for a day or two, the first start sounds horrible for the first 2 or so seconds I can hear all kinds of clacking and banging, possibly just noisy lifters but its like chucking ice down a garbage disposal type of sound. This isn't normal is it? Once it warms up it's nice and smooth on the start. But a cold start after sitting for a day is grinding and then a big slap which I think is the timing chain guide.
I'm still considering having rod bearings and bolts changed out. 57K miles roughly on an 09 daily driver. I'll see if I can get around to making a video on the weekend after it sits a while so I can record the grinding noise.
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