Hi all
I have a 2003 CL55 AMG Kompressor with the M113 E55 engine in it. 99,000 miles.
It has had an oil consumption of approximately 1 L per 1500 miles when driven hard, for the past 10,000 miles.
My last oil analysis (approx 3000 miles ago) showed this:
Today, after a long drive the day previously, the engine started smoking like a chimney:
Lots of oil on the inlet valve on no 1 cylinder:
PCV system is clear on both heads and not showing much breathing at all. No breathing from oil filler or disptick tube.
Eventually it fouled no 1 plug and brought up a misfire code, this is what it looked like:
No 2 plug was rich but not oily:
Compression test on a warm engine on all 8 is:
1 - 155psi
2 - 165psi
3 - 160psi
4 - 175psi
5 - 160psi
6 - 175psi
7 - 175psi
8 - 175psi
I think that I possibly have a broken oil control ring on no 1, considering the compression is good. I have not done a leak down test yet. Thoughts?
I have a 2003 CL55 AMG Kompressor with the M113 E55 engine in it. 99,000 miles.
It has had an oil consumption of approximately 1 L per 1500 miles when driven hard, for the past 10,000 miles.
My last oil analysis (approx 3000 miles ago) showed this:
Today, after a long drive the day previously, the engine started smoking like a chimney:
Lots of oil on the inlet valve on no 1 cylinder:
PCV system is clear on both heads and not showing much breathing at all. No breathing from oil filler or disptick tube.
Eventually it fouled no 1 plug and brought up a misfire code, this is what it looked like:
No 2 plug was rich but not oily:
Compression test on a warm engine on all 8 is:
1 - 155psi
2 - 165psi
3 - 160psi
4 - 175psi
5 - 160psi
6 - 175psi
7 - 175psi
8 - 175psi
I think that I possibly have a broken oil control ring on no 1, considering the compression is good. I have not done a leak down test yet. Thoughts?
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