08-25-2017, 04:34 PM | #1 |
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X3 with weird engine noise?!
Hey guys! Well I have an 05 X3 with the 3.0 and I have this noise happening...I've been around BMW's my whole life and this one is stumping me...I really really don't think it's a rod knock it sounds like the timing chain to me but I can't be sure. It changes tone every once and awhile and the engine is not shaking or anything, any thoughts? Thanks in advance
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08-31-2017, 06:25 AM | #4 |
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Timing chain flapping around on the guides ?
If car is idling OK, possibly ruling out push rods, valves etc... That's my 2 cent `bush mechanic` advice. Let us know outcome Cheers.. |
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09-22-2017, 03:00 PM | #6 |
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Did a DIY a while ago on my ex 530 with the M54 B30 engine - similar to yours.
Replaced the tensioner springs - they were a bit compressed compared to new ones, and after installing them, all noise was gone. here is the link, but the pics are gone - photobucket don't allow for hosting anymore
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e92is f25 N52 e83 N52 e46ci M54B25 (e53 N62 - sold, R.I.P. e39 M54B30) |
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