3-Series (E21, E30)Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.
My 1986 325 has a ticking sound coming from the engine. There's plenty of oil (pretty fresh and no leaks). Its relatively loud and idles a bit funny (tach rhythmically jums up and down a few revs). The car drives ok even in triple digit speeds, but the tick is concerning.
I think this is something that just happens with engines. Mine has some slight tapping sounds but I've heard this on pretty much any car out there. My guess is that it'd be a problem if it was a BRAND NEW car/engine but if you have any kind of miles, I think its normal. Might be lifters, I've heard that before. But most likely its just nothing to be worried about.
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