Highest mileage on a c63?
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From: Bay Area, CA
2009 C63 AMG
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C63 AMG
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From: SoCal
2024 c300 , 2006 E55, 2005 e320, 2007 gl450, 2025 glc300, 2025 e450
I’m starting to think not all 08,09,10 m156’s are burdened with bad headbolts! Mine has 154k on it, a 2009, perfect maintenance, oil changed every 5k stock headbolts, and I make 485whp
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From: SoCal
2024 c300 , 2006 E55, 2005 e320, 2007 gl450, 2025 glc300, 2025 e450
2009 with 80k. No big problems, but the debate for me currently is am I going to keep the car after May when the extended warranty is up or keep pushing my luck outside of it. Car has been well maintained, just not gonna be able to survive if the head bolt issue happens after the warranty is out or clutch packs go etc etc. Any input? Its really either spend a **** load of money on an extended warranty again or trade it in for something else.
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From: Kitchener, ON
2010 C63 AMG
The metallurgy composition is not consistent as you will see some extracted bolts are worse that others. Sure, it's possible you can have 20 "decent" bolts that could take much longer to fail.
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From: SoCal
2024 c300 , 2006 E55, 2005 e320, 2007 gl450, 2025 glc300, 2025 e450
true, my SA and technician at mercedes said some people did get lucky and never experienced headbolts issues, as they said the car got a really bad wrap ( good reason as to why imo ) but not all The headbolts where Faulty
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From: Worldwide
2007 Mercedes E63 AMG
not a C63 but i have 152k hard miles. buckets and head bolts updated. cam adjusters probably need replacement in the near future if they haven't already by previous owner. would have to review service records to determine that.
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From: Kitchener, ON
2010 C63 AMG
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From: SoCal
2024 c300 , 2006 E55, 2005 e320, 2007 gl450, 2025 glc300, 2025 e450
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From: Alexandria, VA
07 E63 AMG, 10 C63 AMG, 07 E63 Designo, 07 E350, 09 C300, 07 C230
One of the reasons, why some have experienced failed head bolts is because they never change their engine coolant. I’ve owned three AMG’s with the M156 engine, and never had any issues with failed head bolts. I’ve also changed my engine coolant on an accelerated interval. I did finally change out my head bolts on my E63, not due to failure but as preventative maintenance. And after having them done and examining the bucket lifters and head bolts, they were in excellent shape considering their mileage and age. In hindsight knowing what, I know now, I wouldn’t have had them done unless I experienced some issues.
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2007 Mercedes E63 AMG
do you really want to shop around for the lowest price...honestly bro, really? got a shop well known for doing the job right.
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From: Relocated
2010 Irridium Silver MB C63 AMG Sedan
Seriously. You just bought a car that was $65k+ new, you got it used with thousands off, you just got into the car after the car has been out 10+ years... Don’t be a cheap college kid... get the car done somewhere with experience and knowledge using the best techs and tools. Don’t be that guy that has 23 air freshener trees hanging from your rear view mirror and homemade fender flares...
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From: Kitchener, ON
2010 C63 AMG
I did mine myself for ~500 in parts.
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From: SoCal
2024 c300 , 2006 E55, 2005 e320, 2007 gl450, 2025 glc300, 2025 e450
MBWorld Fanatic!
Joined: Apr 2015
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From: SoCal
2024 c300 , 2006 E55, 2005 e320, 2007 gl450, 2025 glc300, 2025 e450
One of the reasons, why some have experienced failed head bolts is because they never change their engine coolant. I’ve owned three AMG’s with the M156 engine, and never had any issues with failed head bolts. I’ve also changed my engine coolant on an accelerated interval. I did finally change out my head bolts on my E63, not due to failure but as preventative maintenance. And after having them done and examining the bucket lifters and head bolts, they were in excellent shape considering their mileage and age. In hindsight knowing what, I know now, I wouldn’t have had them done unless I experienced some issues.
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2007 Mercedes E63 AMG
i would change my coolant every year prior to doing the head bolt job after gaining ownership of my vehicle.
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From: NY
2010 C63 2019 GLA45
Originally Posted by Yuille36
One of the reasons, why some have experienced failed head bolts is because they never change their engine coolant. I’ve owned three AMG’s with the M156 engine, and never had any issues with failed head bolts. I’ve also changed my engine coolant on an accelerated interval. I did finally change out my head bolts on my E63, not due to failure but as preventative maintenance. And after having them done and examining the bucket lifters and head bolts, they were in excellent shape considering their mileage and age. In hindsight knowing what, I know now, I wouldn’t have had them done unless I experienced some issues.
Did you dilute with distilled water ?
Did you actually first drain all coolant out of radiator and block?
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From: Alexandria, VA
07 E63 AMG, 10 C63 AMG, 07 E63 Designo, 07 E350, 09 C300, 07 C230
But the choice is yours 🤔
