New member question on 2013 E350 Coupe - Mercedes-Benz Forum
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post #1 of 2 (permalink) Old 06-20-2019, 04:01 AM Thread Starter
BenzWorld Newbie
Date registered: Jun 2019
Vehicle: 2013 E350 Coupe, 2006 E320 CDI
Location: USA
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Exclamation New member question on 2013 E350 Coupe


There is a clicking noise coming from the topside at a rate indicative of one out-of-adjustment valve lash. Removing the oil filler cap while running (it's then louder) definitely indicates top end of engine. Are the valve gaps adjustable or is it more likely a timing chain tensioner? Car has 26k miles and always serviced with Mobile 1.

Thank you for your replies, observations.
helisales is offline  
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post #2 of 2 (permalink) Old 06-20-2019, 05:10 AM
BenzWorld Elite
Date registered: May 2006
Vehicle: 1999 E430; 2005 ML500
Location: Florida
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Your engine has hydraulic lifters. Noisy lifters aren’t usually a problem, but sometimes it’s worth replacing them.
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