S-Prihadi

For our database....

93,000KM and of 2010 model year, C200.
This will be the same engine as W212 E200/E250 in Asia and Europe and C250 in USA.


From cylinder 4 to cylinder 1. Standard 2 intake valves per cylinder. 2 exhaust valves per cylinder.


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Comparing to mine at 35,000KM approx. M276.820 3.0 Turbo
https://mbworld.org/forums/e-class-w...omparison.html

This car, its throttle modulation is not nice at all. It is a 5 speed tranny and now with so much carbon at intake valves its idling and traffic jam performance is NOT elegant.


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Exhaust valves. I forgot the cylinder orientation...LOL




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CaliBenzDriver

Cleaning burned oil deposit is one thing but then how long will it stay clean?

Have the rubber PCV seals failed ?

S-Prihadi

GDI can't stay as clean as port injected for its intake valves...we have to eat the pain pill.

I don't like this engine. Albeit it is small, working on it is not too simple.
I tried blowing with my mouth the valve .. , I did not bring my hand pump to my indie and not wanting to use compressor powerful air.... this PARTIAL LOAD valve , it can't open.

I was too lazy to blow the other way round, but I am sure I am correct for its airflow direction, it is a check valve after all....engine block to intake manifold.
When new valve arrive, I shall update. MB Indonesia been lame, commit 30 days and now 45 days still parts have not arrived.



I send my camera into that funnel shaped CYCLONE Separator cavity at engine block, its is clean actually.

This engine PCV is faulty, it does not have proper vacuum reading at idling or 3,000 RPM measured at oil dipstick...very very weak vacuum.

The plastic cylinder head cover is the FULL LOAD PCV system.
I tried using compressed air, it does have flow but honestly I do not know if the flow is good enough.
Inside it there are some sort of "valves" too. A W204 member have tear down his unit..cut it a part. Its like Audi/VW PCV on its plastic cylinder head.