2008 GL320 broken stud air intake pipe
BUT, in case it is not... it sounds like you don't use the engine cover? Which is fine. If so, remove the broken stud and just use a normal bolt to replace it. Heck, you can still use the plastic cover without that one "pin" - the cover will stay put just fine. If you really want to have that special bolt again, it would probably be easiest to just get it from a dealer - show them the pic and they'll do the rest.
FYI... start soaking that bolt now with PB Blaster before getting putting extractor on it.




