2010 VAUXHALL MK5 (H) (A3300) SPORTIVE A/C CDTI 0 6 Speed Manual Diesel Summit White GAZ/40R CAR DERIVED VAN Engine Ecu Unit55573956 QN Z13DTH RESET In good working used condition, the part number for this unit is Unit55573956 ident QN. This will need to match the number on the back of the ECU you are replacing. This ECU is in a divorced/reset state. You will need to have a qualified technician with Bosch Tech 2 software removed your faulty unit and re install the new ECU in order for it to work. They MUST be programmed to the car correctly with Tech 2 otherwise this will not work. Please do not try and install yourself. To fit all Vauxhall Astra H models with a Z13DTH engine fitted and the correct part numbers as mentioned above. Price includes delivery via Royal Mail Special Delivery.