Rattling noise on start up (Video)

Jun 21, 2018 | 09:21 PM

NickZeta

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Joined: Jun 2018

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2012 Mercedes C63 AMG Coupè W204

Rattling noise on start up (Video)

I've noticed a short rattle noise on start up, it seems to happen both when the engine is cold and warm. Has anyone experienced anything like this?

Video:

Do you think I should consider changing the hydraulic lifters? My car is a 2012 C63 with only 36,500 km

Jun 21, 2018 | 09:49 PM

1Lop2K5C

Super Member

Joined: Dec 2004

Posts: 714

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From: CA

C63

Hearing that initial start up, that sounds like a cam adjuster issue.

Jun 21, 2018 | 11:06 PM

AMGonFire

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Joined: Apr 2015

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2012 c63 AMG, 2011 GLK 350, 2019 GLS 450

Quote:

Originally Posted by NickZeta

I've noticed a short rattle noise on start up, it seems to happen both when the engine is cold and warm. Has anyone experienced anything like this?

Video:
https://www.youtube.com/watch?v=qQz_EGm3NZI

Do you think I should consider changing the hydraulic lifters? My car is a 2012 C63 with only 36,500 km

lots of threads on this. Look at my history of threads. Had it since I bought it. had cam adjusters replaced, solenoids done, different oil. Still makes noise here and there. Was told it’s normal by multiple mb mechanics. Heard many outher M156 make this noise so it may not be normal but a design flaw that many have. The noise Hasn’t affected my car in the 3+ years I’ve owned it.

Jun 22, 2018 | 12:17 PM

Ludedude

Senior Member

Joined: May 2017

Posts: 482

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From: Las Vegas, NV

2014 C63 Coupe

Camshaft adjusters. Mine does it infrequently.

Jun 23, 2018 | 12:51 AM

Hackin247

Junior Member

Joined: Nov 2017

Posts: 30

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C63 AMG Sedan

I think I have the same random rattle at startup although it sounds more like the bottom of the car.

Is this just an annoyance thing or should be fixed right away?

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