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| 02-25-2019, 09:27 AM | #1 |
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Drives: BMW M4 DCT (F82)
Join Date: Jan 2012
Location: Melbourne
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Current: F82 Mineral White M4 7DCT
Gone but never forgotten: E92 Sparking Graphite 335i (N54) 6MT build thread. Last edited by Pete.J; 08-24-2020 at 09:48 AM.. |
| 02-25-2019, 11:36 AM | #2 |
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C2H5OH
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Plastic, I can't even guess.
Metal, I'm guessing they are threads from over torquing the drain plug, pulled threads. |
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| 03-03-2019, 02:42 PM | #3 |
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I changed the drain plug to a magnetic one, so I have the OEM one to measure. It's diameter is close to your measurement. I suspect the guy above is correct. You had better check for leaks.
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| 03-03-2019, 03:00 PM | #4 |
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Sounds to me like your Vanos bolts have broken. The bolts that hold the cam sprocket together tend to shear off. Check your VIN to see IF the recall has been done. This only effects N55, up to 2012 M.Y.
When a BMW dealer does the recall... they replace the broken bolts and only change the engine oil. They don't pull the oil pan off to look for metal parts. That is not right, but it is what it is. Those alloy parts could be threads of your oil sump. ? The plastic piece is probably from one of your timing chain tensioners/guides/ramps. Broken VANOS Bolts Go to post #21... https://www.1addicts.com/forums/showthread.php?t=863669 (VANOS) Recall N55 https://www.1addicts.com/forums/show....php?t=1007913 N55 Vanos Issue! https://www.1addicts.com/forums/show....php?t=1065375 https://www.edmunds.com/car-news/bmw...ine-stall.html
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