the turbos aren't that bad, I once had one replaced on an old 240 for about $800 (for a rebuilt)

but the modern turbos are much better, and i doubt her car has a blown turbo unless it was very poorly maintained...

the modern ones might cost 1200 to replace, but rarely fail.

I gave my 760 with about 240K on the original engine and turbo to my mom. It used about 1/3 to 1/2 quart of regular dino oil in about 3K miles or so... ran peppeier than my dad's '93 940 turbo with about 120K on it

my 850 is on the origianl engine and turbo and only uses oil when I run fuel system cleaner in it and even then not much