Noise coming from Engine or Transmission
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Newbie
Joined: Mar 2019
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2014 E350 4Matic, 2014 CLS 550 4Matic
Noise coming from Engine or Transmission
I was wondering if anyone has had this problem, I started my car the other morning and I heard a noise so the next time i turned my car off and turned it back on i was able to record this, it sounds serious.
Thread Starter
Newbie
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2014 E350 4Matic, 2014 CLS 550 4Matic
idk if I don’t have the privileges enabled or what but I can’t seem to upload the video :/
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From: Savannah, GA
2010 W212 E550 4matic
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2011 E-350 4Matic Sport
Take the serpentine belt off for and see if the sound repeats at start-up. If it's gone then you've started to narrow down possible issues. Do not run the engine more than a minute! Water pump and alternator won't be running. You'll probably get a cel for the alternator control module but it can be cleared.
To me it sort of sounds like something peripheral, not an engine internal.
To me it sort of sounds like something peripheral, not an engine internal.
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Out Of Control!!
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From: North Scottsdale, AZ
'71 Pinto
Depending on your engine # check valves & chain tensioners may need replacement. If engine # is within affected range ague for MB goodwill repair given defective parts were installed @ production.
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Thread Starter
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2014 E350 4Matic, 2014 CLS 550 4Matic
I use 91 Octane and no unfortunately no CEL that would at least narrow the problem, the only thing wrong at the moment would be the battery i need to get replace, which is weird because i bought it less than a year ago.
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2011 e350
Out Of Control!!
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From: Silicon Valley
W212 MY'14 M276-3.5NA @75kMi
startup rattle...
> If you are refering to the startup rattle... the timing chain TENSIONERS fix is perfectly documented by @konigstiger under post #8.
> If this has been overlooked for long... extra work gets tucked in to replace wobbling VVT gears.
> At which point you want to check the famous 8 timing connectors for the "oil in harness".
Knock on wood perhaps its just your serpentine belt gone loose.
🤞
> If this has been overlooked for long... extra work gets tucked in to replace wobbling VVT gears.
> At which point you want to check the famous 8 timing connectors for the "oil in harness".
Knock on wood perhaps its just your serpentine belt gone loose.
🤞
