Thread: M54 Engine Lost Compression on Cylinder 6
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  #8  
Old 10-13-2024, 09:43 PM
cn90 cn90 is offline
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You need to do dry and wet compression test on #6.

If P still low with wet, then chances are burned exhaust valve.
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1998 E39 528i 5sp MT
2006 E53 X5 3.0 6sp MT
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