Cold Start Engine Sound
Thread Starter
MBWorld Fanatic!
Joined: Oct 2010
Posts: 5,123
Likes: 1,288
From: Southern US
2010 E550, 273 Engine: 2012 S550, 278 Engine
Cold Start Engine Sound
Could not find a thread for this issue so I started this new one. Moderator, if there is a thread closely related to this same then move my post to the right place.
Wondering if the 278 engine noise is normal for my 2013 S550. It sounds like a very fast lifter noise that goes away after engine runs about 35 seconds and then I can hear what sounds like normal lifter noise and this sounds like half the frequency.
Is my engine starving oil pressure at valve lifters / rockers etc. at cold start causing this noise?
Just changed oil 2 days ago after noticing this noise. Oil is fresh and level at mark.
Wondering if the 278 engine noise is normal for my 2013 S550. It sounds like a very fast lifter noise that goes away after engine runs about 35 seconds and then I can hear what sounds like normal lifter noise and this sounds like half the frequency.
Is my engine starving oil pressure at valve lifters / rockers etc. at cold start causing this noise?
Just changed oil 2 days ago after noticing this noise. Oil is fresh and level at mark.
Last edited by Arrie; Apr 11, 2021 at 04:59 PM.
