C-Class (W204) 2008 - 2014: C180K, C200K, C230, C280, C300, C350, C200CDI, C220CDI, C320CDI

M271 Evo Engine Noise Problem

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Old Nov 19, 2025 | 12:18 PM
  #101  
Liinus's Avatar
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Mercedes E250 CGI W212
Originally Posted by rica155
Hello Liinus, have you tried this method ? Did it work ? Thanks
Hi Rica155! No i have not. I noticed that my oil filter cap was broken on the inside. As mentioned in the thread above. After changing the oil filter cap, I no longer hear the noise.
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Old Nov 29, 2025 | 08:36 AM
  #102  
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Hey, guys. I am a member of this noise problem club too. Because I was having a rattling noise on the first 2-3 seconds in the morning when I first started the engine I changed the entire timing kit, with the cam adjusters, vacuum pump and oil cooler( the last 2 were leaking oil). Besides this, I also had the noise at 1500rpm when the engine was hot but I thought it was due to the timing chain. But now, I changed everything I said above and I still have both the sound when I first start the engine and the 1500rpm sound. Do you have also the first time starting noise too?

Last edited by HiddenOne; Nov 29, 2025 at 08:37 AM.
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Old Dec 8, 2025 | 06:09 AM
  #103  
Liinus's Avatar
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Mercedes E250 CGI W212
Originally Posted by HiddenOne
Hey, guys. I am a member of this noise problem club too. Because I was having a rattling noise on the first 2-3 seconds in the morning when I first started the engine I changed the entire timing kit, with the cam adjusters, vacuum pump and oil cooler( the last 2 were leaking oil). Besides this, I also had the noise at 1500rpm when the engine was hot but I thought it was due to the timing chain. But now, I changed everything I said above and I still have both the sound when I first start the engine and the 1500rpm sound. Do you have also the first time starting noise too?
Hi! No i did not have the rattling noise when i started the engine.
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Old Jan 2, 2026 | 03:29 PM
  #104  
Gouri's Avatar
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W204 1.8 M271
Originally Posted by nosurprises
Has it ever been resolved? I am still suffering from the sound.
Hello, there is one guy on YouTube Bimmerhead who fixed it by changing the cranshaft bearings that is the reason of the low oil pressure.

the problem is caused by low oil pressure i think if the plug falls down after u replaced the tensioner it also happened when the car was new but the the crankshaft bearings were also new and everything ,so it did not cause problems but now since our cars have more miles U cant have both.
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Old Feb 28, 2026 | 01:29 AM
  #105  
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W212 1.8
Hello for all owner of w212 1.8 engine with that’s knock noise is from the crank bearing that conect the piston rod because of missing oil and high temperature is damage in that area
Also the camshaft are damage so the oil pressure is low








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Old Mar 17, 2026 | 02:45 PM
  #106  
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Possible solution

For all of you having a rattle noise from the cam adjuster area, please check that the sprocket still has the "valve" - bear with me here - it's one small metal plug, with a spring, a washer and a circ-clip, in that order, inside the cam adjuster body - the part where the timing chain sits on. For this you need to remove the coils and the cam cover, turn the engine by hand until you see it. On the exhaust sprocket, somehow the clip failed, and the little pin was left siting on the coolant passage. I had another cam sprocket so made the mods directly. No more noises, hopefully that was all.
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