M156 head bolt problems
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; Oct 2, 2014 at 05:48 PM.
https://mbworld.org/forums/c63-amg-w...data-poll.html
Thanks,
Glenn
The Best of Mercedes & AMG


Thanks,
Glenn
Yes.
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
If a bolt broke or stretched and the gasket is compromised that could bes larger job. Heads need to come off.
WDDGF7HB3AF521424


WDDGF7HB3AF521424
Regards,
Joe


Datacard attached. This car is not affected.
Regards,
Joe


No reason to check.
Regards,
Joe
i'm having trouble finding a 12..
this white 11 is appealing to me... i'm so anxious


i'm having trouble finding a 12..
this white 11 is appealing to me... i'm so anxiousThis one is not affected.
Regards,
Joe











