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      09-14-2014, 01:30 PM   #1
E86Z
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Exclamation Engine Knock (lifters?) Vid Inside Z4C 3.0si N52

Hi all,

This has happened to me twice in the last week. I hear a loud ticking from the engine back while driving and the ticking increases frequency with revs. Last time I turned the car off and back on. Everything went back to normal but not this time. Here's a video of what I'm dealing with:



Some info on the car:
- 2006 N52 with 60 000 Miles
- No mods
- Have been using 0w-30 Castrol for a couple years
- Oil level sensor SAYS everything is fine but who knows
- The temps have been dropping here from 70s to 50s
- The car has always had quite a bit of soot around the exhaust on the bumper, not sure if that is related.
- No loss of power, still love the car

Thanks all

Last edited by E86Z; 09-14-2014 at 01:49 PM..
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      09-15-2014, 01:10 PM   #2
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Well documented issue, there was a bulletin issued for this where they'd replace the lifters. Design flaw in the n52 but doesn't cause any damage to motor.
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      09-15-2014, 06:38 PM   #3
E86Z
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Thanks, I know its common but it sounded much louder than usual. I'm going to get an oil change, I'm due. Hopefully that quiets it down
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