I run a 2000 110 cdi auto.
The injectors welded themselves in, had to be done. The speedo went wrong, had it replaced 1500 euro. The anti roll bar bushings need replacing as it rattles like crazy over stuff.
I live in a relatively dry place but rust is still an issue(above sliding doors).
Other than this I really like my Vito, it’s high mileage now and still keeps clogging on.