Something or someone has run afoul with the rear hatch lock on my 740 stationwagon. The key won't go in (this is after it was parked for a couple of months at an in-laws house - I suspect kids put something in the lock).

Questions:
I assume the only action is to remove and replace the lock?

This being the case, can anyone tell me if RandRing the lock on the rear hatch is something a not-full-time mechanic should try or is it worth paying a bodyshop to do the work? And then does anyone have the steps to completing an remove and replace?

Thanks for any help you might pass my way.

wai