Sliding, bad luck and breakdowns ? -Quality V70 D5

Hello Volvinos, After a short break I would like to report again. My fourth Volvo (V70 D5, year 11/2002) is slowly developing into a Monday car. Up to now more parts have been replaced than with my three predecessors (850, 850 Kombi and V70 Tdi). Small extract: hum sounds at 150 -160 Km/h – various repair tests Material errors Door panel – changed crack in the leather steering wheel – changed driver’s seat does not rest on – rails change climate automation defective – completely changed material defects sun blind – changed floor heating defective – cleaned gear transmission – reverse gear can not be inserted – gear disassembled and cleaned loudspeakers defective – changed 12V socket in the boot – repaired start problems – all injection nozzles changed (bulance) car does not start – starter changed (culance) So I only knew from colleagues the Audi A4, Passat, or Sharan so far! Do I have extreme bad luck?