Reliable car or wrong friend?

Good evening I’m interested in a Laguna Bj: 2005, 115000km, 2.2dCi, 102 kW (139 hp), 6 gear, saloon, manual transmission and diesel. The condition is clean at first sight.INNER EQUIPMENT CD player Electric. Window lifter Air conditioning (air conditioning) Multifunction steering wheel Power steering tuner/radio Central lockingAUSTEN EQUIPMENT Electric. side mirror SAFETY & ENVIRONMENT ABS ESP Electric. immobilizer Particle filter This should consume 8.9l indoors. Realistic? Come to me z u much ahead. Is this with a price of 3000€ in the normal realistic range ? Or not to touch this series at all, because it may have many diseases? MfG