M271 Evo 180CGI engine ticking hydraulic tappets?
07-27-2024, 03:15 PM
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W204 180CGI
M271 Evo 180CGI engine ticking hydraulic tappets?
Hello, for a few months now I've had the problem that the engine is ticking. About 6 months ago I put in the hydraulic tappet additive and the ticking went away. After about 3 months it came back and I changed the engine oil (5W40). Unfortunately the ticking continued.
The ticking occurs when the engine is cold as well as warm. A few days ago I put in the hydraulic tappet additive again and drove almost 1000km in one go. Unfortunately the engine is still ticking.
I checked the timing 1 year ago and it was still OK.
The engine oil is changed every 10,000km at most.
The engine has run 240,000km and the timing chain and adjuster were changed at 150,000km. (Original Mercedes)
I've already checked the oil pressure and it far exceeds the values stated in the WIS.
Has anyone had a similar ticking on their M271 and knows what the problem is?
I recorded a short video about it.
The ticking occurs when the engine is cold as well as warm. A few days ago I put in the hydraulic tappet additive again and drove almost 1000km in one go. Unfortunately the engine is still ticking.
I checked the timing 1 year ago and it was still OK.
The engine oil is changed every 10,000km at most.
The engine has run 240,000km and the timing chain and adjuster were changed at 150,000km. (Original Mercedes)
I've already checked the oil pressure and it far exceeds the values stated in the WIS.
Has anyone had a similar ticking on their M271 and knows what the problem is?
I recorded a short video about it.
