engine noise upon startup tap
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Joined: Dec 2015
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09 c63
engine noise upon startup tap
Had my oil changed about a month ago had no prior noise, if I let the car sit for couple days in the heat then start I get a tapping noise ,goes away when i get to the end of my block, sounds horrible mercedes did oil change said they used 5 40 mobil 1 is this correct have another appointment but it's quiet once warm I really think it is a oil problem what do you guys think
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From: Kitchener, ON
2010 C63 AMG
Have a look through the FAQ. It will answer a bunch of questions you haven't asked yet. Including this one 
https://mbworld.org/forums/c63-amg-w...-stickies.html
https://mbworld.org/forums/c63-amg-w...-stickies.html
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From: Silicon Valley, CA
C63 AMG, P30
Had my oil changed about a month ago had no prior noise, if I let the car sit for couple days in the heat then start I get a tapping noise ,goes away when i get to the end of my block, sounds horrible mercedes did oil change said they used 5 40 mobil 1 is this correct have another appointment but it's quiet once warm I really think it is a oil problem what do you guys think
Do a bit of reading on tappets.
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From: Pittsburgh
C63 AMG
Sounds like a failed lifter(s).
When an engine sits, if a lifter loses prime, it will lose the oil in the lifter creating a tapping sound. Once oil pressure is built up the lifter fills and noise goes away.
This may or may not be the issue, but sure sounds like it to me.
When an engine sits, if a lifter loses prime, it will lose the oil in the lifter creating a tapping sound. Once oil pressure is built up the lifter fills and noise goes away.
This may or may not be the issue, but sure sounds like it to me.
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From: Pittsburgh
C63 AMG
just found this:
https://mbworld.org/forums/c63-amg-w...er-issues.html
If it is the lifter, have them replace dredded head bolts if yours falls into this vin category...
https://mbworld.org/forums/c63-amg-w...er-issues.html
If it is the lifter, have them replace dredded head bolts if yours falls into this vin category...
Thread Starter
Member
Joined: Dec 2015
Posts: 92
Likes: 1
09 c63
just found this:
https://mbworld.org/forums/c63-amg-w...er-issues.html
If it is the lifter, have them replace dredded head bolts if yours falls into this vin category...
https://mbworld.org/forums/c63-amg-w...er-issues.html
If it is the lifter, have them replace dredded head bolts if yours falls into this vin category...
MBWorld Fanatic!
Joined: Sep 2013
Posts: 1,673
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From: Pittsburgh
C63 AMG
Thanks for the reply hopefully it's not the lifter only happens once in a while when I start it ,only started to happened after oil change this was my first oil change for this car, they said they used 5 40 I think I'm going to change back to 0 40 and see if that helps any idea how much for headbolt and lifters from dealership
5W still pretty thin, and they prob rec running the 5W in summer over a 0W.
Sorry to bring bad news, but if I had to guess this sounds like the culprit.
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From: Pittsburgh
C63 AMG
Most of the time lifters hang up or the rubber seal goes bad and they lose prime.
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From: Kitchener, ON
2010 C63 AMG
I'm no expert, but bleed down rate can be affected by many things. Then when the car starts up, if it's "sticky/gummed up" it could take some time to pressurize.
Design flaw possibly?
Design flaw possibly?
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From: Worldwide
2007 Mercedes E63 AMG
Motul 6100 or 8100 and Liquimoly MoS2...you'll thank me later. with recommended service intervals as long as we have on our cars, there is no reason why not to go with the best oil combination possible.
Super Member
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From: Chicago
W463
^
Try switching oil to Motul above or Liqui Moly Leichtlauf High Tech 5W-40 (I use this one)
Liqui moly Ceratec added with your current Mobil 1 5w40. Then use MoS2 afterwards.
No chatter, noise or nothing after the above.
Try switching oil to Motul above or Liqui Moly Leichtlauf High Tech 5W-40 (I use this one)
Liqui moly Ceratec added with your current Mobil 1 5w40. Then use MoS2 afterwards.
No chatter, noise or nothing after the above.
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From: Los Angeles
2012 P31 C63 Coupe Trackrat, 2019 GLE63S Coupe Beast
That's exactly what I do, except with M1 0W-40. IMHO it's more important to get oil to the top of the engine early on cold starts, plus the additive package is better. Ceratec first, then MOS2 on subsequent changes. 
