Hello to the round, I’m new here in the forum, hot Martin and currently live in Chemnitz. Since March I am (in the beginning even more proud) owner of a Volvo V70 I, year of construction at the end of 96 with the B5252FS/S engine (144 hp). Meanwhile the car has 391 tkm down, the last approx. 5000 km were unfortunately not all too fun anymore. Here are the symptoms that the engine shows: – relatively high oil consumption (approx. 1.3 l / 1000 km) – spark plugs black after approx. 1500 km, as a result of which: – heavy jerking, partly no/bad gas acceptance below 2000 rpm – blue and black qualm when giving gas – petrol odor – exhaust gases from the oil measuring rod (so not from the rod, but from the pipe ) – power holes in the lower speed range – relatively high consumption (approx. 12 l/100 km) My workshop has today done a compression test, these values of 10 bar (cylinder. 5) linearly rising to 11.5 bar (cylinder. 1). What I would like to hear from you: valve joints and oil – unfortunately, but I would not have used to replace yours.