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M156 head bolt problems

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Old 10-02-2014, 05:45 PM
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C63 AMG
Originally Posted by Sincity
Failure in the UK on a 2008 with only 20k miles: http://www.mbclub.co.uk/forums/amg-l...2-%40-msl.html
Previously posted
None were broken
They found 2 loose bolts
I wonder if they stretched?
Most failures have been snapping at the head/shank
Last edited by Ingenieur; 10-02-2014 at 05:48 PM.
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Old 10-02-2014, 07:09 PM
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Does anyone know?
Internal torx tool size, eg, Txx
Shank diameter
For the old style bolt
I thi k I found the oem and want to look at the specs
tia
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Old 10-02-2014, 09:01 PM
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2010 C63 AMG
I believe motoman (sp) posted all the specific details re: old vs new bolt specs in one of the threads. Good luck finding it though
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Old 10-02-2014, 09:26 PM
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Originally Posted by Jasonoff
I believe motoman (sp) posted all the specific details re: old vs new bolt specs in one of the threads. Good luck finding it though
Been through it once this week documenting the failures lol
Once is enough
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Old 10-10-2014, 03:01 PM
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M156 head bolt data poll started below. Please post if affected.

https://mbworld.org/forums/c63-amg-w...data-poll.html
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Old 11-29-2014, 09:26 PM
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Head gasket replacement video (time lapse):

http://www.youtube.com/watch?v=fYTGj...PigLv_nHwzbfBA
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Old 11-30-2014, 09:16 AM
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Not bad, only took 5min
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Old 12-06-2014, 01:34 PM
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2011 C63
OK, I changed my oil today and I now notice a ticking noise in the valve train. I'll give it a while to see if it goes away. I have a 2011 that does not have the bad head bolts. So my question is, when Mercedes went to the new head bolts, did they also go to the better SLS valve train parts (buckets)?

Thanks,
Glenn
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Old 12-06-2014, 06:18 PM
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2014 E63 AMGs, 2015 F-150 Lariat, 2010 Porsche C4S
Originally Posted by glennhl
OK, I changed my oil today and I now notice a ticking noise in the valve train. I'll give it a while to see if it goes away. I have a 2011 that does not have the bad head bolts. So my question is, when Mercedes went to the new head bolts, did they also go to the better SLS valve train parts (buckets)?

Thanks,
Glenn


Yes.
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Old 12-07-2014, 08:52 AM
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2019 C63s, 2021 E63s Estate
Just chiming in here...

I have a 2007 CLK63, bought new -- it now has ~149K miles on it (yes, I drive it). @50K, I was one of the first in the country to experience the lifter failure as it took out three of my camshafts. MB was kind enough to pay for that.

@149K, now, I believe I've won the lottery, as all signs are pointing to head bolt failure on my vehicle. At this point I'm hoping the damage isn't too extensive, currently awaiting a tear down. If it's just the bolts, I'm replacing with studs.

Cheers,
Chris
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Old 12-08-2014, 11:20 AM
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C63 AMG
If you catch it early and have a good shop that will switch from bolts to studs one at a time, price shouldn't be too much. They should be able to do the job in 8hours.

If a bolt broke or stretched and the gasket is compromised that could bes larger job. Heads need to come off.
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Old 12-08-2014, 05:53 PM
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BlueClk63 - If you proceed with a repair, PM me. I might have some useful info that pertains to your FL location. GL...
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Old 12-12-2014, 07:50 PM
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07 mustang
Can I please have this 2010 vin number checked?
WDDGF7HB3AF521424
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Old 12-12-2014, 09:32 PM
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2010 C63 AMG
2010 = affected, 2011 = maybe...
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Old 12-13-2014, 08:36 PM
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2014 E63 AMGs, 2015 F-150 Lariat, 2010 Porsche C4S
Originally Posted by Jgrass89
Can I please have this 2010 vin number checked?
WDDGF7HB3AF521424
Again all 2010 and older, and some early 2011s are affected.

Regards,

Joe
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Old 01-11-2015, 04:24 PM
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A V8
Originally Posted by Valvestud
Again all 2010 and older, and some early 2011s are affected.

Regards,

Joe


good thing i'm getting a 12'
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Old 01-13-2015, 09:21 AM
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C63
hello, pls check

WDDGF7HB2BF600584

and datacard.

Thanks!
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Old 01-13-2015, 01:11 PM
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2014 E63 AMGs, 2015 F-150 Lariat, 2010 Porsche C4S
Originally Posted by MingenPowa
hello, pls check

WDDGF7HB2BF600584

and datacard.

Thanks!

Datacard attached. This car is not affected.


Regards,


Joe
Attached Files
File Type: pdf
C63_.pdf (15.2 KB, 211 views)
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Old 01-13-2015, 03:34 PM
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I already know I"m in the effected range, but might as well check.


WDDGF77X79F278077
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Old 01-13-2015, 03:45 PM
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2014 E63 AMGs, 2015 F-150 Lariat, 2010 Porsche C4S
Originally Posted by norb
I already know I"m in the effected range, but might as well check.


WDDGF77X79F278077


No reason to check.


Regards,


Joe
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Old 01-15-2015, 08:32 PM
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A V8
WDDGF7HB5BF632297


i'm having trouble finding a 12.. this white 11 is appealing to me... i'm so anxious
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Old 01-15-2015, 10:21 PM
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2014 E63 AMGs, 2015 F-150 Lariat, 2010 Porsche C4S
Originally Posted by solekeeper
WDDGF7HB5BF632297


i'm having trouble finding a 12.. this white 11 is appealing to me... i'm so anxious

This one is not affected.


Regards,


Joe
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Old 01-15-2015, 11:28 PM
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A V8
thanks joe
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Old 01-19-2015, 08:48 AM
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A V8
WDDGF7HB6BF554595 please
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Old 01-19-2015, 10:28 AM
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Originally Posted by solekeeper


This one is also not affected.

Regards,

Joe
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