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Old 06-30-2014, 09:43 AM
Andras Andras is offline
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Join Date: Nov 2007
Location: Little Neck, NY
Posts: 110
I re-ran the compression test and got different results for no apparent reason. Where it was 20 psi, now 120 psi. Still not 200 psi, but maybe because the engine is cold and has been sitting for many days, and the oil may not be currently around the piston rings. I don't know.
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2004 E500 4Matic 138,000 miles
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