C63 AMG (W204) 2008 - 2015
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2013 C63 Little End Failure

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Old Aug 7, 2017 | 10:59 PM
  #26  
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So you have a dull knock sort of sound during cold start?

I call BS on the diagnosis...
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Old Aug 7, 2017 | 11:27 PM
  #27  
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Why not just change the pistons/pins/rods? A whole engine is hardly necessary.
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Old Aug 8, 2017 | 01:09 AM
  #28  
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a unicorn tuned p30 e63
There are plenty m156's for sale, if you look around and do a little haggling you can get an engine for a decent price
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Old Aug 8, 2017 | 02:25 AM
  #29  
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Originally Posted by Celicasaur
LA54RUS...... I've seen that plate before...probably from MB-club UK.

FWIW the techs at MSL have torn down many an M156 and one of them is ex-AMG apparently, so you should be in good hands with those guys.

Good luck with the repairs man. Stuff like this is never nice
As above take it to MSL they have been great to me in person and helped over the phone.

A video of the noise would help on here too, I see quite a few used engines going for around the £7000 mark on ebay so that is always an option but tbh if two different dealerships gave that opinion I would be going to an Indy shop such as MSL to see what they think as that have torn down many a M156 to fix and tune. The last time I was there Acid had at least 8 C63 amgs getting work done just to show you most the guys go there and travel from all over (I go from West Yorkshire to Birmingham)
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Old Aug 8, 2017 | 05:59 AM
  #30  
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please see video at [url]www.youtube.com/watch?v=pgU3STYf6F0

Last edited by LA54RUS; Aug 8, 2017 at 08:55 AM.
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Old Aug 8, 2017 | 06:02 AM
  #31  
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Doesn't sound like little end to me. Possibly cam /timing chain side of things, possibly tensioner? I would remove the belt and see if it still makes the noise. Very likely as you would have hoped MB would have done so already.
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Old Aug 8, 2017 | 06:05 AM
  #32  
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The only thing I hear in that video is injector noise. Otherwise sounds like a normal M156 to me.
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Old Aug 8, 2017 | 06:06 AM
  #33  
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Originally Posted by BLKROKT
The only thing I hear in that video is injector noise. Otherwise sounds like a normal M156 to me.
Around the 1 minute mark there is a irregular tapping/rattling noise.
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Old Aug 8, 2017 | 06:11 AM
  #34  
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Originally Posted by BLKROKT
The only thing I hear in that video is injector noise. Otherwise sounds like a normal M156 to me.
Listen at around 48 seconds. It's a weird one....I've not heard something like that before.....
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Old Aug 8, 2017 | 06:16 AM
  #35  
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Originally Posted by alexanderfoti
Around the 1 minute mark there is a irregular tapping/rattling noise.
Oh yeah, I hear it. That definitely sounds no bueno. But how someone diagnoses something as obscure as a wrist pin failure from hearing that is a little suspect...
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Old Aug 8, 2017 | 06:21 AM
  #36  
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Originally Posted by BLKROKT
Oh yeah, I hear it. That definitely sounds no bueno. But how someone diagnoses something as obscure as a wrist pin failure from hearing that is a little suspect...
Yes its a bit of leap! I have a feeling if they remove the rockers the problem may be obvious.
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Old Aug 8, 2017 | 06:53 AM
  #37  
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Originally Posted by BLKROKT
The only thing I hear in that video is injector noise. Otherwise sounds like a normal M156 to me.
1.10 onwards and gets worse, something is seriously rattling about.
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Old Aug 8, 2017 | 07:34 AM
  #38  
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That is rod noise. A shop could narrow it down by revving in neutral on a lift and listening from above and below, to see which rod noise it is.
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Old Aug 8, 2017 | 07:59 AM
  #39  
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Something is definitely up after the one min mark in the video. I agree with above that it sounds like rod noise. OP, I hope you aren't driving it around anymore. I would get it towed to the next shop to avoid making the problem worse.


I came from the S65/S85 (M3/M5) world and when the rod bearings gave out on those you would have metal shavings sent everywhere via oil passages. This required replacement of the entire oiling system (hoses, cooler, VANOS solonoids, etc) along with full engine replacement.
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Old Aug 8, 2017 | 08:52 AM
  #40  
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Video can be seen at:- www.youtube.com/watch?v=pgU3STYf6F0
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Old Aug 8, 2017 | 09:15 AM
  #41  
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That really stinks operator, after tear down you will know much more. You probably won't need a new motor. You are better off rebuilding existing motor it will be cheaper and bore your motor out with new pistons etc.
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Old Aug 8, 2017 | 09:36 AM
  #42  
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Originally Posted by LA54RUS
how did you figure that out? Could you hear knocking while driving? Seemed like it took a while for the sound while stationary and holding revs.
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Old Aug 8, 2017 | 09:39 AM
  #43  
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Originally Posted by AMGonFire
how did you figure that out? Could you hear knocking while driving? Seemed like it took a while for the sound while stationary and holding revs.
I was pulling my C63 into the garage & happened to have the window open & as i picked up the revs i could hear the rattle / clatter sound at 2000-3000rpm
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Old Aug 8, 2017 | 09:58 AM
  #44  
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Pre-mature bearing failure on a service documented car. AMG should be able to do better than 50%.

Did they put a 30WT in for a few changes by accident?

I'd just crack the fuel line and go for a rip. Let er burn...
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Old Aug 8, 2017 | 10:14 AM
  #45  
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Originally Posted by Jasonoff
Pre-mature bearing failure on a service documented car. AMG should be able to do better than 50%.

Did they put a 30WT in for a few changes by accident?

I'd just crack the fuel line and go for a rip. Let er burn...
what is the significance of 30WT oil?
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Old Aug 8, 2017 | 10:17 AM
  #46  
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Originally Posted by LA54RUS
what is the significance of 30WT oil?
It could break down and not lubricate the bearings properly. Possibly not provide enough oil pressure.
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Old Aug 8, 2017 | 10:59 AM
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You can't rebuild this one. Once you're done shavings are going to come out of somewhere. It's not possible to completely clean all the oil passages.
If you try to rebuild, you will have an early recurring bearings problem. Because shavings will come out of some passage.
But it's not only the engine that has to be replaced. Any external oil cooling items like pipes and radiator have to go as well.

That's also why, as a buyer you have to be careful with buying used engine blocks and internals, oil radiators and turbos (for turbo cars).
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Old Aug 8, 2017 | 11:01 AM
  #48  
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Originally Posted by Vladds
You can't rebuild this one. Once you're done shavings are going to come out of somewhere. It's not possible to completely clean all the oil passages.
If you try to rebuild, you will have an early recurring bearings problem. Because shavings will come out of some passage.
But it's not only the engine that has to be replaced. Any external oil cooling items like pipes and radiator have to go as well.

That's also why, as a buyer you have to be careful with buying used engine blocks and internals, oil radiators and turbos (for turbo cars).
Thanks for the heads up! 👍👍
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Old Aug 8, 2017 | 11:10 AM
  #49  
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Originally Posted by Vladds
You can't rebuild this one. Once you're done shavings are going to come out of somewhere. It's not possible to completely clean all the oil passages.
If you try to rebuild, you will have an early recurring bearings problem. Because shavings will come out of some passage.
But it's not only the engine that has to be replaced. Any external oil cooling items like pipes and radiator have to go as well.

That's also why, as a buyer you have to be careful with buying used engine blocks and internals, oil radiators and turbos (for turbo cars).
Why would shavings be in the oil passages?
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Old Aug 8, 2017 | 11:41 AM
  #50  
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Originally Posted by Vladds
You can't rebuild this one. Once you're done shavings are going to come out of somewhere. It's not possible to completely clean all the oil passages.
If you try to rebuild, you will have an early recurring bearings problem. Because shavings will come out of some passage.
But it's not only the engine that has to be replaced. Any external oil cooling items like pipes and radiator have to go as well.

That's also why, as a buyer you have to be careful with buying used engine blocks and internals, oil radiators and turbos (for turbo cars).
your talking from m3 v8 experience? This might not necessarily be true for this motor in terms of the shavings. This is not a common issue with these motors.
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