ignition coil abcde

hi so i have 06 s40 T5 turbo changed plugs and coils but stating on my OBD2: cylinder 3 misfire,ignition coil A primary/secondary circut, ignition coil B,D,E,C, random misfire, cylinder 3,1 along with heater control circut low bank 1,2 sensor 1,2 bought this car from a friend for 500$ whats...