hi guy wernt to sure where to put this so decided to ask on here instead

i just purchased a 2.2 dti vectra c looks and is a great car
what is the most common faults i.e fuel pumps as im a bit worried just incase ive brought a problem car
reason is weve had the old b vectra and was a great car but as i see technoligy moves on the vehcles we drive get worse?
knowing this a s i am a merc technician lol so thats why i brought a vauxhall lol

the info would be great cheers guys