works great! A half a bottle should do the trick!
2010 M272 Lifter Ticking When Warm
Thread Starter
Member
Joined: Mar 2022
Posts: 134
Likes: 90
From: Washington DC Metro Area
2022 X213 E 450 Wagon
2010 M272 Lifter Ticking When Warm
With a few "lifter ticking" searches in the forum I have come across several engine types, but I am unsure whether those messages/responses apply to my older M272 engine.
I'm hearing what sounds like one collapsed lifter at idle and normal operating temperature. It is loud enough to hear inside and outside the car. This noise either ceases at higher RPMs or it could be getting drowned out out by overall noise.
I changed the oil and filter to ensure that MB 229.5 spec oil is used. I was unsure whether the last shop used MB spec oil. With the oil change I ensured that the oil level is at the top of the dipstick range.
The sound persists. Is this common on the M272.980 engine? I haven't pulled the valve cover to see if there is any sludge.
Is this noise benign? It sounds more annoying than scary. Is this something I just have to accept due to it being 12 years old with over 100,000 miles?
I obviously want to avoid tearing this apart if the noise is benign.
I'm hearing what sounds like one collapsed lifter at idle and normal operating temperature. It is loud enough to hear inside and outside the car. This noise either ceases at higher RPMs or it could be getting drowned out out by overall noise.
I changed the oil and filter to ensure that MB 229.5 spec oil is used. I was unsure whether the last shop used MB spec oil. With the oil change I ensured that the oil level is at the top of the dipstick range.
The sound persists. Is this common on the M272.980 engine? I haven't pulled the valve cover to see if there is any sludge.
Is this noise benign? It sounds more annoying than scary. Is this something I just have to accept due to it being 12 years old with over 100,000 miles?
I obviously want to avoid tearing this apart if the noise is benign.
MBWorld Fanatic!
Joined: Jul 2012
Posts: 4,509
Likes: 1,513
From: Orbiting the planet
This place is a joke.
Every 272 I've heard makes a tapping sound, best heard outside.above the passenger tire. It's normal.
It doesn't have valve covers per se. Please do yourself a favor and don't touch it.
It doesn't have valve covers per se. Please do yourself a favor and don't touch it.
Last edited by E55Greasemonkey; Apr 20, 2022 at 06:56 PM.
Thread Starter
Member
Joined: Mar 2022
Posts: 134
Likes: 90
From: Washington DC Metro Area
2022 X213 E 450 Wagon
I found something relevant here that also says "leave it alone" 
https://mbworld.org/forums/e-class-w...l-me-what.html
I'm lazy. Leaving it alone knowing it won't degenerate and fail due to this noise is fine by me!
https://mbworld.org/forums/e-class-w...l-me-what.html
I'm lazy. Leaving it alone knowing it won't degenerate and fail due to this noise is fine by me!
MBWorld Fanatic!
Joined: Aug 2021
Posts: 1,536
Likes: 765
1983 Nissan Shltbox
Being OHC, lifters are obvously a non-issue, and not sure if that description helped or distracted from the actual issue. Rotating assembly ticking is obviously a bad thing, but often those are mistaken for timing components. Post a video of the condition.
Whenever I start hearing a noise, I start probing around with one of these:
https://www.harborfreight.com/mechan...ope-63691.html
Whenever I start hearing a noise, I start probing around with one of these:
https://www.harborfreight.com/mechan...ope-63691.html
MBWorld Fanatic!
Joined: May 2018
Posts: 6,602
Likes: 6,549
From: Jakarta-Indonesia
2014 - W212.065 - E400 ( M276.820, 3 liter Turbo) RWD not Hybrid
Fuel vapor purge valve also makes noise. I do not know its position on your M272 engine.
On mine it is very close to LEFT HEADLIGHT ( Driver side for USA ).
https://mbworld.org/forums/e-class-w...rge-valve.html
There is a way to ID the noise. Record it at loudest source.
Edit in a video editor with capable audio portion. Find the noise waveform.
What you want is the frequency of the noise.
We know that crankshaft RPM if at say 1,000 , that means camshaft is at 500 RPM.
Assuming the noise waveform pops out in the video editor and is visible, you can at least ID its frequency/RPM and narrow the search.
If say the noise is a 500 RPM one, a 30FPS video can capture it 500/60seconds = 8.3 spikes ( 8.3hz ) per second on the audio file
If you have a scope, you can narrow it down to INLET/OUTLET valve opening/closing events , if suspect is indeed the lifter.
There is a special mic for scope use
On mine it is very close to LEFT HEADLIGHT ( Driver side for USA ).
https://mbworld.org/forums/e-class-w...rge-valve.html
There is a way to ID the noise. Record it at loudest source.
Edit in a video editor with capable audio portion. Find the noise waveform.
What you want is the frequency of the noise.
We know that crankshaft RPM if at say 1,000 , that means camshaft is at 500 RPM.
Assuming the noise waveform pops out in the video editor and is visible, you can at least ID its frequency/RPM and narrow the search.
If say the noise is a 500 RPM one, a 30FPS video can capture it 500/60seconds = 8.3 spikes ( 8.3hz ) per second on the audio file
If you have a scope, you can narrow it down to INLET/OUTLET valve opening/closing events , if suspect is indeed the lifter.
There is a special mic for scope use
Super Member
Joined: May 2018
Posts: 505
Likes: 288
From: Sammamish, WA
2011 E350 Wagon, 2010 GL450
I'll be rebuilding the passenger head sometime this year to remedy this issue. Stay tuned to see how that goes O.o
They all make the noise and it seems to be harmless but I just can't live with it. It's embarrassing.
They all make the noise and it seems to be harmless but I just can't live with it. It's embarrassing.
Trending Topics
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
MBWorld Fanatic!
Joined: Aug 2021
Posts: 1,536
Likes: 765
1983 Nissan Shltbox
What fluid transfer pump are you using? Looks orange? You are refilling the diff with this pump, correct? Thanks!
Sorry for off-topic.
Thread Starter
Member
Joined: Mar 2022
Posts: 134
Likes: 90
From: Washington DC Metro Area
2022 X213 E 450 Wagon
I plan on using it to change out diff fluid and refill/change the transmission fluid. Great tool for $100 (in 2019)
MBWorld Fanatic!
Joined: Aug 2021
Posts: 1,536
Likes: 765
1983 Nissan Shltbox
Thanks man. I always drain from the pan with oil changes. I just need a smaller, medium-volume pump like the one in that pic for diff and other stuff. That Mityvac looks nice though. I may get it just to try a from-the-top oil change just for the hell of it.
