Coolant usage-may be the "bad news"
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AMG GLC63. Audi R8
Last edited by DuaneC63; May 7, 2012 at 03:00 AM.
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OK, PM with appropriate referenced threads has been sent to the mods above to ask for; a) merging of recent threads regarding coolant loss and head bolt failure, and b) pinning said thread on the C63 forum as a sticky. We shall see...
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AMG GLC63. Audi R8
Bhamg. Thanks for undertaking this. I have a sense we're in for a battle with MBZ.
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CLK63 Black Series
Here’s a picture of the old heal bolts and new head bolts. They are obviously different. The issues seem to be metallurgy of the old bolts which after many expansion and contraction cycles fail by snapping. MBZ is aware of the problem and is using the new head bolts in engines after 0060658. As the heads of the bolts are different you could pull a valve cover to confirm which bolts you have.
I assume the one on the left is the old design ?
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C350 4matic coupe
One failed head bolt and another with corrosion, definitely sounds like a metallurgy issue. I'd love to swap them all out with ARP fasteners and be done, but I'm sure that'd void any warranty.
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C63 AMG
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AMG GLC63. Audi R8
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C63 AMG
Probably torque to yield bolts on the intake manifold. Which can only be used once.. They use these on the tranny pan too, you have to buy new bolts when you flush it.
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This is correct. Any torque to yield bolts can only be used once. If you have a head bolt break they will replace all the head bolts with the new design head bolts.
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Was thinking of buying an used C63, thinking twice about that now. Is there some way to easily check if a 2010 C63 was built after MY2010? Man i feel bad for anyone trying to sell a c63 that's built prior to MY2010, their re-sale value probably just went down by at least 5000 dollars. I am hoping MB USA knows about this.
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C63
Wow! Can't believe this, 22k now on mine no problems yet. Thinking I should run the **** out of it this summer and sell it before factory warranty is up. lol So much for keeping my beloved hand built motor for a long time.
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AMG GLC63. Audi R8
Was thinking of buying an used C63, thinking twice about that now. Is there some way to easily check if a 2010 C63 was built after MY2010? Man i feel bad for anyone trying to sell a c63 that's built prior to MY2010, their re-sale value probably just went down by at least 5000 dollars. I am hoping MB USA knows about this.
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2015 C63S E1 (sold 2012 C63 AMG Sedan (Premium & APX)) & 09 C300 Sport 4Matic
On the positive side, I doubt that every single engine below the target VIN will break. Only some will and I know we can't foretell which ones those will be.
I think the best option for those affected is to purchase extended warantee and/or ask MB if this will be covered post warantee period.
I think the best option for those affected is to purchase extended warantee and/or ask MB if this will be covered post warantee period.
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Update on my Car. MB says it not the head bolts. Requiring a full engine strip down to determine whats wrong. No help yet from MB Aus on the cost of this though it seems like some sort of catastrophic failure which I do not think should have occurred on a 3.5 year old 51K KM motor serviced on the dot by MB themselves. The Service Tech says he has not seen a similar type of failure! Will know more on Monday.
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C63 AMG
Update on my Car. MB says it not the head bolts. Requiring a full engine strip down to determine whats wrong. No help yet from MB Aus on the cost of this though it seems like some sort of catastrophic failure which I do not think should have occurred on a 3.5 year old 51K KM motor serviced on the dot by MB themselves. The Service Tech says he has not seen a similar type of failure! Will know more on Monday.
