Should I buy an Omega B 2.5 V6?

Hello people I hope you have a few tips for me. I’m about to buy an Omega B 2.5 V6. I’ve read a few opinions and experiences about this car here. I’m a little unwise now if I should buy the car, because it tends to have some problems. e.g. with the cooling water temperature. the omega is a 94` bj., has run 91,000 km, climate, eFH, eSp, el. glass roof, el. heckrollo, xenon etc. think that this is the usual equipment. and me according to my opinion the price of 4,500 € is ok, or what do you think? thank you already … chillah