I have had no major problems with the vehicle since buying it new. I have replaced tyres which wore evenly, and had it serviced twice, both within the recommended distance. The heated mirrors stopped heating, which was due to a blown fuse, and put right without charge by my supplying dealer.
The vehicle is very car-like, and drives very well. I was very pleased with its performance from new, compared to my previous Volkswagen Transporter which was sluggish.
We have recently experienced problems with the Vito (2006) - water gets into the fuel system when it rains; would be interested to hear of anyone else suffering the same.