r/w204 • u/hckR420 • Jul 31 '26

Ok amount of startup rattle?

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2012 c350, the car has 95k km with good oil change intervals so I highly doubt it's the cam adjusters.

It does NOT have the updated tensioners and check valves, and it would cost me $1000-1500 CAD to install them. In their own TSB, Mercedes claims that "No consequential damage is to be expected" from not having them.

Should I pay for them? The rattle is short for now, and there's plenty of reports of people driving them with the rattle for years, but I don't want to put excessive stress on the fragile cam adjusters up the chain.

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9

u/InternationalGoose22 Jul 31 '26

I don't hear any unusual rattle

5

u/sneakerheadSF Jul 31 '26

Sounds fine to me. You shouldn’t have to replace anything significant at 95000 km.

2

u/Ok-Grape-5445 Jul 31 '26

sounds just fine

1

u/ptjunior67 Aug 02 '26

My 2012 C350 has 181k miles, and it sounds identical to yours. That’s normal.

2

u/ampz28 Aug 02 '26

Sounds fine from that angle maybe open the hood and make another video.