sbaer

I looked at a '09 ML which is obviously in the affected engine range and the MB dealer says the VIM record shows a head bolt replaced at 50k miles but he does not know if this means the TSB for the head bolts and valve buckets was executed.
I don't believe the official service guide allows for replacement of a single head bolt so should I assume the TSB was done and this is now safe?

The only number listed next to the head bolt item is "00120306-7"

MLGuy

Looks like the new bolt part # is listed in this thread:

https://mbworld.org/forums/c63-amg-w...olt-issue.html

Also, where did you check to see if your VIN was in the affected range? I've also got a 2009 ML63 and interested to check.

sbaer

You can create a free Startek Info account with MB and search the VIN. It will then show the engine serial number

MLGuy

Thanks.

red60R

Mine's an 07, so am I to assume it's definitely on the list? At almost 100k I'm going to have to look at the history to see if it was ever done in the past.