M-Class (W164) Produced 2006-2011: ML280CDI, ML320CDI, ML420CDI, ML350, ML500, ML550

My W164 is DEAD (cue taps....)

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Old Dec 3, 2024 | 10:05 PM
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My W164 is DEAD (cue taps....)

Hello everyone. I hope the hoildays are treating you well. As the title says, my car is dead. Long story short, it's a 2011 ML 350 Base with 265K on it (ballpark)??? It's been a great car with no major issues; routine maintenance as I like to be on top of all the A/B/C. I'm on SoCal where the weather is mild yearlong but went to Mammoth where it was 8 degrees. The day I was set to go home the car would not start; check that....it started and sounded fine then proceeded to rough idle hard and shut down. It would not start again. Called for a jump hoping its was the battery but that did nothing. Got it back down to my mechanic and he's tested the starter as well as other possible culprits (timing chain/injectors) with no answers. The engine has completely seized and will not turn manually. He's drained the fluid and dropped the oil pan but it was clean with no metal. He's now trying get his hands on a used engine at the same time trying to figure out what exactly went wrong. I've accepted the fact that this engine is toast but I'm curious as hell (so is he). So I thought I might throw this to the forum to see if anyone has any ideas with the information we have so far....automotive murder/mystery if you will.

Any suggestion will also be appreciated as to what you would do in my shoes. Happy Holidays!!!

Cheers
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Old Dec 3, 2024 | 11:03 PM
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Has he inspected the cylinders? I think you had a misfire likely from a failing piston ring or failing cylinder lining/oiling and the piston seized and hence locked the engine

I wonder if an extremely cold start caused a combustion/mixture problem that snowball this problem into a seized engine
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Old Dec 4, 2024 | 01:27 AM
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Originally Posted by PeterUbers
Has he inspected the cylinders? I think you had a misfire likely from a failing piston ring or failing cylinder lining/oiling and the piston seized and hence locked the engine

I wonder if an extremely cold start caused a combustion/mixture problem that snowball this problem into a seized engine
Not yet I believe but he's going to start dismantling it tomorrow. Slow trickle of information is coming in daily. I'll post here with info. Interesting you mention the cold.....the morning after I arrived, I tried starting the car and it caught but was super rough. It sounded like it was going to stall out so I gave it gas to keep it going. Check engine light was blinking and it didn't look good. I turned it off and on again....like nothing ever happened!!! Ran the car all day around Mammoth in a winter storm with no issues. The next day (departure day), went to start the car and it was normal. Waited for it go possibly rough idle again but it didn't so I opened the door and stepped out. Two steps out of the car and the rough idle starts and dies off a few seconds later. Couldn't get it to start after that.

Cheers.
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Old Dec 4, 2024 | 01:42 AM
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let me guess,you never replaced timing chain?
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Old Dec 4, 2024 | 03:44 AM
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Sorry to hear that. A broken ring as noted earlier, or possibly a timing chain issue like a stuffed guide/tensioner has caused it to lock up? Another possibility is a valve train issue like a broken/dislodged lifter that's locked a cam up and brought everything to a hault.
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Old Dec 4, 2024 | 09:00 AM
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ML 350 Blutec
My ML-350 BT:
https://mbworld.org/forums/m-class-w...fm-recall.html


Engine and install gona be around 8k USD. We didnt go for it as warranty was only 3 months being offered. Be carefull alot of scams for used engines. Let you Mec handle it.

Last edited by music; Dec 4, 2024 at 09:02 AM. Reason: add text
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Old Dec 5, 2024 | 06:05 PM
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seized

My best guess would be top end issue causing the major issues .
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Old Dec 7, 2024 | 12:46 AM
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Originally Posted by serb
let me guess,you never replaced timing chain?
True I did not replace the chain but I did get the car used at 155k with it done. It was my next thing to do. Argh. If it turns out to be something related to the chain I'll be kicking myself.
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Old Dec 7, 2024 | 12:50 AM
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Originally Posted by BlackML550
Sorry to hear that. A broken ring as noted earlier, or possibly a timing chain issue like a stuffed guide/tensioner has caused it to lock up? Another possibility is a valve train issue like a broken/dislodged lifter that's locked a cam up and brought everything to a hault.
Ok. Would there be any signs that would've alerted me? Just curious if I missed anything.

Originally Posted by music
My ML-350 BT:
https://mbworld.org/forums/m-class-w...fm-recall.html


Engine and install gona be around 8k USD. We didnt go for it as warranty was only 3 months being offered. Be carefull alot of scams for used engines. Let you Mec handle it.
He is handling it. I trust him completely. As an ex MB mech he's knowledgeable and honest.

Originally Posted by vesiadog
My best guess would be top end issue causing the major issues .
I believe he dropped the engine today so we'll figure out more in the next few days. I'll keep everyone posted. He did drop the oil pan and found it clean; no metal parts or shavings.

Cheers

Last edited by ElementaryDW; Dec 7, 2024 at 12:53 AM.
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Old Dec 9, 2024 | 08:01 PM
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So he sent me pictures today with the engine dropped. Looks like that plastic part that guides (biscotti) is shredded.

OMG!!!
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Old Dec 10, 2024 | 03:56 PM
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There's not much you can do other than change your oil more frequently..I do mine every 5k miles to try and avoid this, but it's no guarantee as theyre plastic and the same with all euros, they age and break. How often did you change your oil?
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Old Dec 10, 2024 | 04:20 PM
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oil has nothing to do with this,plastic cracks because of heat cycles and general material fatigue
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Old Dec 10, 2024 | 06:41 PM
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Originally Posted by BlackML550
There's not much you can do other than change your oil more frequently..I do mine every 5k miles to try and avoid this, but it's no guarantee as theyre plastic and the same with all euros, they age and break. How often did you change your oil?
Thanks for the consideration. I changed every 7500 FYI.

Originally Posted by serb
oil has nothing to do with this,plastic cracks because of heat cycles and general material fatigue
Which is why I asked my guy if that shouldve been a "maintenance" item. He said it's so involved to get that it can't be a maintenance thing. Plastic in the engine....
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Old Dec 11, 2024 | 04:03 PM
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Originally Posted by serb
oil has nothing to do with this,plastic cracks because of heat cycles and general material fatigue
I said they age and break. But frequent oil changes won't hurt it and can only prolong their life.
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Old Dec 17, 2024 | 11:32 AM
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UPDATE:

An engine has been found with 114k coming out of an 2011 E350. Along with a bunch of other stuff that will be replaced as the engine is already out, it's going in this week.
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Old Dec 17, 2024 | 04:14 PM
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Originally Posted by ElementaryDW
UPDATE:

An engine has been found with 114k coming out of an 2011 E350. Along with a bunch of other stuff that will be replaced as the engine is already out, it's going in this week.
Change the guides whilst its out and make sure it's not an engine with the balance shaft problems.
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Old Dec 29, 2024 | 11:35 AM
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FINAL UPDATE:

The engine is in and by all accounts it sounds the same and feels likewise. Odd that this whole thing came up so suddenly. It's practically all new parts in there now; made sense as the engine was out to the tune of $4k. Don't know if there's anything anyone can rheme from this. I don't believe during regular timing chain replacement, guides are replaced. If it is the case, that's the lesson I learned.

Hope everyone is enjoying their holiday.

Cheers
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Old Dec 29, 2024 | 12:22 PM
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before

Can you tell us what happened the last couple of days before it quit?
Idle problems?
Any engine codes?
thanks
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Old Dec 29, 2024 | 08:07 PM
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Originally Posted by vesiadog
Can you tell us what happened the last couple of days before it quit?
Idle problems?
Any engine codes?
thanks
Let's see. The car was "normal" meaning it did have a stored code for intake manifold which didnt actuate CEL. It did have one active code for oxygen sensor I was aware of. Only other quirk was on cold start, I would start the car and turn it off after 3 seconds because it would make slapping sounds. My mech said it was not getting oil up fast enough probably due to a leak/bad gasket from oil pump. He said the E class R class doesn't see this much but tye placement of the pan in the MLs might be the reason. But daily it was not an issue. Just got use to starting it twice when cold starting.
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Old Feb 16, 2026 | 02:06 AM
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Originally Posted by ElementaryDW
Let's see. The car was "normal" meaning it did have a stored code for intake manifold which didnt actuate CEL. It did have one active code for oxygen sensor I was aware of. Only other quirk was on cold start, I would start the car and turn it off after 3 seconds because it would make slapping sounds. My mech said it was not getting oil up fast enough probably due to a leak/bad gasket from oil pump. He said the E class R class doesn't see this much but tye placement of the pan in the MLs might be the reason. But daily it was not an issue. Just got use to starting it twice when cold starting.
Bringing this threat back because I feel I'm about to go down this same road.
Back in October I told my mechanic that every morning when I started the car I would here a "metallic rattling" sound after about three to four seconds then it would go away. This only happened after sitting overnight.
Below were his notes:
"Verified intermittent rattle from left cylinder adjuster assemblies, added cleaner to oil system and performed test per SDS nothing conclusive. Possible sticking of adjusters or lubricating valve assemblies. Will need to remove valve cover for further diagnosis, recommend driving the vehicle for 2,000 miles and again add cleaner to the system and flush oil to try to clean out passages"
So I'm almost at 2,000 miles and this week the noise came back, I plan to take it back tomorrow to my mechanic. Ironically I was scheduled to head to Lake Tahoe this week where a storm has just moved in but I will probably cancel. I wonder if I would be heading down your same road if I did take the car to near freezing temperatures?
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Old Feb 16, 2026 | 10:32 AM
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year and model

Can you give us the year and model?
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Old Feb 16, 2026 | 07:33 PM
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2011 ML350
Originally Posted by vesiadog
Can you give us the year and model?
2011 ML350 4matic
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Old Feb 16, 2026 | 07:39 PM
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cam issues

All the 350 motor issues were pretty much settled around 2009?
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Old Feb 16, 2026 | 07:58 PM
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Originally Posted by vesiadog
All the 350 motor issues were pretty much settled around 2009?
Not sure I understand, are you saying this could be a recall issue?
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Old Feb 17, 2026 | 12:14 AM
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research

Originally Posted by azzurribaggio
Not sure I understand, are you saying this could be a recall issue?
You will have to do your research ..
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