thats one of the reasons i went for a transit as opposed to one of the above... as i had...( well still have as well)... an expert....
they hard to work on... french / german parts..... same as vivaros/traffic/ nissan primaster... they have a mixture of different exported parts etc...
every mechanic i spoke to advised me to go for a transit.
proven reliable for donkeys years, easy to work on, parts cheap and readily available...
so i had to go with that..
though i love the style of vivaros... fast , six speed, drive like a car etc.....
i like them... but i like my new van now too.