Volvo V70 compression pressure? 1 cylinder Does not work

Hello all together would like for 50€ a Volvo good condition with TÜV Buy V70 1999 2.4 170 HP The question He resounds only on 4 cylinders Compresion measured cylinder 1 2 3*5: 8-8,30 BAR cylinder 4 MAX ; 6 BAR What is actually worth 12 bar ??? The car has by the way only 500,000 kilometers is very little ?? Did TÜV drive new tires all weather CA 5000 KM New candles and ignition coil timing belts change CA 80.000 km Should be driven at 150,000 km Inne part leather Pretty used but is ok For the price 50€ man can not complain 1. hand throttle flap should be defective And engine smells good but when it is warm then the cylinder 4 starts not to ignite engine control light lights up and I believe ETS ????? What does all this ETS thank you in advance