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The Description of Oil Separator Cover and Camshaft Expansion Plug Kit
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The oil separator is installed in the engine crankcase breather or exhaust pipe part, it is to separate the oil in the crankcase discharge gas and reduce the oil emission to the outside of the engine.
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Break down the oil vapor and the water vapor coming out of the combustion chamber, the separated oil film flows to the oil sump, and the filtered vapor goes into the engine to be burned again.
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The Camshaft Expansion Plug maintains pressure and air balance in the crankcase by drawing in and exhausting gas from the crankcase
Carol
August 5, 2025
Fit my C300 Mercedes
LEON
July 20, 2025
Fast delivery, item as described
Angel Lopez
June 29, 2025
Within a week the crankcase breather began to leak oil. I thought the issue may had been that it cracked when I installed it but when I swapped it with a new one I noticed the issue was that the breather didnt align well with the crankcase, so the part had slight warping issues and it got worse within the week. I'd return the part but it'd be a pointless return as the part is useless now.
Kisha
June 19, 2025
The parts are all good, just make sure your mechanic knows what there are doing, under the hood of Mercedes BenzThanksDR
gerald harris
June 14, 2025
Perfect part to stop oil leak
C B
June 6, 2025
Worked and fit great.Stopped my oil leak
leon walker
May 29, 2025
I like that it works and the price was right Thanks!
David Matsiuk
April 26, 2025
Unfortunately this product didn't meet up to my standards. After installing I noted the plugs weren't tight when they popped in and sure enough they leaked including the breather. Hate to say this hut Dorman made bettery quality.
sunny
April 13, 2025
Exactly as discribed
Jason
March 2, 2025
The large plug was leaking from the start. The two smaller plugs are ok. The oil separator cover started leaking now about 5 months after install. The seals are garbage. They might be ok if you plan to RTV them but you're better off buying from one of the bigger aftermarket brands or the genuine Mercedes parts.
Iain Gunn
January 31, 2025
Large cam plug leaked, made quite a mess. Was suspicious from the start as it had 2 raised mold marks. Poor quality. Don’t buy, other parts seem ok not leaking.Update the oil collector is now leaking. Terrible product
Armon Usmon
January 15, 2025
It is cheap alternative to factory part, but it will fail in 2 months very disappointing
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