2009 L322 5.0 S/C problems. Anyone else had problems with...

[shentodj]

...head studs pulling out of the block, causing head leak (coolant).
First sign I had was "coolant low" message.
Car never overheated.
When garage took it apart, initially thought head studs had worked loose over time.
However, when reassembling, it became apparent that the two loose studs had actually stripped their threads.

Anyone else had similar? Have googled it and found no other mentions.
Have repeated this post in Jaguar (for XK/XJR comments).

Regards,
Shentodj

[dingg]

threads generally don't just decide to strip themselves , someone has been a tad heavy handed IMO , and is blowing smoke in your direction