Rattle on Startup
Thread Starter
Junior Member
Joined: May 2013
Posts: 18
Likes: 1
From: Tampa, Florida
2013 Mercedes C63 AMG (P31)
Rattle on Startup
Hey guys - I have a rattle/vibration sound occurring only on startup. It's starting to occur more often and of course the dealer has told me they can't hear it. It's actually quite loud and sounds like its coming from the exhaust somewhere near the front of the car. Almost sounds like something is loose. Anyone else experience this issue?
Thanks
Thanks
Thread Starter
Junior Member
Joined: May 2013
Posts: 18
Likes: 1
From: Tampa, Florida
2013 Mercedes C63 AMG (P31)
Mine honestly sounds like an exhaust hangar is loose or something. Only occurs when i initially turn the car on though - if it was an exhaust hangar i would imagine i could hear it through certain power bands, no?
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MBWorld Fanatic!
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C63 AMG P30 *EuroCharged*| Porsche Cayenne | Buell XB9SX
Originally Posted by Grossi
I have this same issue, my dealer said that it can't be the cam adjusters if I don't have a check engine light on. Any truth to that?
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Junior Member
Joined: Jan 2016
Posts: 32
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2014 c63 AMG w204
I did a lot of digging around on this and say your threads. I called both local dealers and they said they've never heard of this causing a rattle. I am going to take it in but already feel like it will be a frustrating experience and they will say they don't hear it.
MBWorld Fanatic!
Joined: Sep 2005
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C63 AMG P30 *EuroCharged*| Porsche Cayenne | Buell XB9SX
I've had rattles and all 4 replaced (one at a time as the rattles happened). On a side note, I've asked my MB rep and he said it doesn't cause any damage anyway. Not sure if his word is gospel, but he is pretty forthcoming and knowledgable, plus I asked him when my car was out of warranty.
Junior Member
Joined: Jan 2016
Posts: 32
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2014 c63 AMG w204
I've had rattles and all 4 replaced (one at a time as the rattles happened). On a side note, I've asked my MB rep and he said it doesn't cause any damage anyway. Not sure if his word is gospel, but he is pretty forthcoming and knowledgable, plus I asked him when my car was out of warranty.
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2012 c63 AMG, 2011 GLK 350, 2019 GLS 450
Last edited by AMGonFire; May 17, 2016 at 11:01 PM.
Junior Member
Joined: Jan 2016
Posts: 32
Likes: 1
2014 c63 AMG w204
Same sound I have had for the past 16 months been to the dealer multiple times for it it's the cam adjusters I had them replaced still didn't fix it car drives fantastic I'm not paying attention any longer good luck having the dealer fix it basically told me it's normal it's not but not hurting anything right now I'm keeping my ears closed on start up lol was told my valve train looks great so appears to not be hurting anything in 16 months or performance either just noisy o well if they fix it let me know please
I will let you know if they do anything but I'm expecting a lot of pushback.
Newbie
Joined: Jun 2019
Posts: 3
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2015 c63 507
Hey guys - I have a rattle/vibration sound occurring only on startup. It's starting to occur more often and of course the dealer has told me they can't hear it. It's actually quite loud and sounds like its coming from the exhaust somewhere near the front of the car. Almost sounds like something is loose. Anyone else experience this issue?
Thanks
Thanks
Super Member
Joined: Mar 2009
Posts: 561
Likes: 72
From: Las Colinas (Irving, Texas)
2024 GLE 63 S AMG SUV
You know, I have thought about doing this myself because I get the cam adjuster rattle every now and then on cold start 
Update:
Just looked and Walmart doesn't carry 5w40
They always have 0w40 on sale so I guess I am sticking with that
Update:
Just looked and Walmart doesn't carry 5w40
They always have 0w40 on sale so I guess I am sticking with that
Last edited by JRHolt; Jun 16, 2019 at 11:11 AM.
Member
Joined: May 2017
Posts: 242
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From: West by god Virginia
'08 C300 4Matic Sport / '11 C63
Just an option and I have to admit I enjoy FCP's warranty that makes an oil change cost about $20 now.
Newbie
Joined: Feb 2020
Posts: 12
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2014 C63 507
I’v had my Cam adjusters changed as told by a specialized mercedes mechanic. Once changed he told me the car is perfect. Took it and on the first startup the sound is back. Had the oil changed already and using 5w40. Any other idea what could be causing this otherwise?
another question would be about another sound i have. It is similar to the video below.. anyone knows what is the reason behind it?
Thanks in advance!
another question would be about another sound i have. It is similar to the video below.. anyone knows what is the reason behind it?
Thanks in advance!
Super Member
Joined: Mar 2019
Posts: 522
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From: Bondi Beach , Australia
2013 W204 C63 AMG P31 Estate wagon
Is your car a Performance Pack car because they have forged pistons and they can rattle when cold.
Mine does same at exactly same revs and always has.
Mine does same at exactly same revs and always has.
Newbie
Joined: Feb 2020
Posts: 12
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2014 C63 507
