as long as your not blowing steam out of the tailpipe or losing coolant mysteriously youll b ok...did the previous owner know hat he is doing? did he properly bleed the system? could be hydrolocked and the coolant isint circulating...so i would start by a proper flush and bleed...see what that does...if you dont know how...buy a bently manual or look online...pellicanparts.com...tey have good tech articals...good luck