Quote:
Originally Posted by Suvorovo
I have never seen anyone have issues with rod bearing wear on the N52 regardless of year. Did the mechanic confirm that coolant was also contaminating the oil or just metal shavings?
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I hope its not rod bearing, mechanic will investigate the real issue during next weeks, might remove head and stuff. He said its not coolant issue.
Quote:
Originally Posted by Suvorovo
Since you have metal shavings, just go with new engine, don't bother swapping out rod bearings. Look for an engine with low mileage, you won't have issues. If it's high mileage, just have the mechanic inspect the cam ledges and swap out with teflon rings if they haven't been done already from factory/recall.
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He said its aluminum shavings. Is it still better to go with a new engine? I still want to know the root cause, so will let mechanic disassemble engine and see is it worth fixing or not... he said it might be hard to clean those all aluminum shaving. Will those aluminum shavings hurt engine a lot?
Quote:
Originally Posted by TheMidnightNarwhal
Have you driven your car yet or just taken your mechanic's word about the code not coming back? I ask because for example when my intake VANOS 2A82 code kept popping up, it took a long time for it to come up between one another. I swapped solenoids thinking my problem was resolved just for it to come up. It only came up when my oil was starting to get warm and if I left form a stop on WOT or accelerate the throttle very softly and then decide to accelerate faster. Sometimes I could drive my car for a full cycle and not have the code come up either.
Yes VANOS bolts but you can also have a bearing ledge issue that will also cause 2A82 VANOS code like I had.
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I am taking mechanics word, he did a little drive, but yeah, it might be not enough. Would VANOS bolts or bearing ledge cause some kind of additional (grinding/lifter like) engine noise though?