Cold Start Engine Sounds
Thread Starter
Newbie
Joined: Aug 2024
Posts: 2
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2011 GLK350
Cold Start Engine Sounds
Hi everyone, my engine is making a variety of sounds when on a cold start that disappear after a minute. Please see this video to hear the sounds. I would love some help to identify if this is an easily addressed issue, or a more serious issue for the mechanic? The GLK is at about 107k km. Thanks!
Last edited by beareth; Aug 19, 2024 at 08:25 PM. Reason: Added odometer.
MBWorld Fanatic!
Joined: Sep 2015
Posts: 2,602
Likes: 347
2013 glk 350
You didn’t put in the audio when the sound goes away. I will just guess and say clogged lifters from the stupidly- excessively long Mb stated oil change interval, has allowed sludge to build up. Also running a cold motor will sludge it up. Like from a bad thermostat. You could try an engine flush like Liquid Moly. Or maybe the timing chain is loose until it get lubrication. I’m just guessing at possible things. You need a mechanic to look at it and tell you what it is.
Thread Starter
Newbie
Joined: Aug 2024
Posts: 2
Likes: 0
2011 GLK350
You didn’t put in the audio when the sound goes away. I will just guess and say clogged lifters from the stupidly- excessively long Mb stated oil change interval, has allowed sludge to build up. Also running a cold motor will sludge it up. Like from a bad thermostat. You could try an engine flush like Liquid Moly. Or maybe the timing chain is loose until it get lubrication. I’m just guessing at possible things. You need a mechanic to look at it and tell you what it is.
MBWorld Fanatic!
Joined: Sep 2015
Posts: 2,602
Likes: 347
2013 glk 350
My 13 has made noise cold since I got it 10 years ago. I just ignore it. Maybe yours is a pulley bearing or water pump. A stethoscope for a car would help pinpoint it. I think I heard a squeek on your video, that might be a bearing going bad
