help---my car smokes like crazy!!! - Page 2 - Mercedes-Benz Forum

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post #11 of 13 (permalink) Old 03-27-2008, 05:10 AM
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Date registered: Jun 2004
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Sounds like a broken piston/pistons. A M110 will still run almost Ok with a broken piston but will smoke as you describe.
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post #12 of 13 (permalink) Old 03-30-2008, 11:23 PM
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Vehicle: 75 450SLC W107
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K&N filters are oil treated! The oil from the filter coats the inside of your intake system. This will foul up fuel sensors in the intake system!! Are you sure its oil smoke and not a fuel mixture problem caused by the Filter? You are losing an abnormal amount of oil right?
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post #13 of 13 (permalink) Old 03-31-2008, 07:21 AM
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His engine...

has the CIS mechanical injection system, I believe, which should be significantly less sensitive to any stray oil from the K&N. JJSMILHOUS is correct that K&N filters are not good for the air mass sensors on the later EFI systems.

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