Engine Tick at 56,000 miles c280.
Thread Starter
Member
Joined: Mar 2013
Posts: 200
Likes: 2
2007 c280
Engine Tick at 56,000 miles c280.
Noticed a slight engine tick today on my c280 during idle only. Regular mobil 1 oil changes, 0w40 spec with fleece filters. 9qts as per the manual. I've read online that the injectors on the v6 can be loud/ clack. Any truth to this?
Should I try taking a sound clip?
How about running a carbon buildup additive?
Any advice would be greatly appriciated.
Thanks guys!
Should I try taking a sound clip?
How about running a carbon buildup additive?
Any advice would be greatly appriciated.
Thanks guys!
Last edited by Stuka Bomber; Jun 26, 2014 at 04:10 PM.
MBWorld Fanatic!
Joined: Sep 2010
Posts: 1,434
Likes: 4
From: Raleigh, NC
2005 C230K, 2019 Honda CR-V, '74 Lotus Europa
Your signature video is pretty distracting! I almost forgot you were asking a question! 
Does it only occur when the engine is cold or any time it idles? It's probably hot outside. Do you even hear it with the windows rolled up? with the A/C on? I assume it's not throwing a CEL, right?
I don't know if it could be the injectors, but I would put Techron in your gas regularly anyway. If it happens when it's cold and then goes away, I wouldn't worry about it. With your mileage and maintenance, I would guess it's probably nothing. Mine is the M271 engine so I pay pretty close attention to ticking sounds. My wife's has the M272 (like yours, right?) and I haven't noticed it at all when I drive it. It has almost 80K miles.
Maybe somebody else has more definitive information for you.
Does it only occur when the engine is cold or any time it idles? It's probably hot outside. Do you even hear it with the windows rolled up? with the A/C on? I assume it's not throwing a CEL, right?
I don't know if it could be the injectors, but I would put Techron in your gas regularly anyway. If it happens when it's cold and then goes away, I wouldn't worry about it. With your mileage and maintenance, I would guess it's probably nothing. Mine is the M271 engine so I pay pretty close attention to ticking sounds. My wife's has the M272 (like yours, right?) and I haven't noticed it at all when I drive it. It has almost 80K miles.
Maybe somebody else has more definitive information for you.
