MOTOR VAUXHALL ASTRA H MK5 1.7 CDTI Z17DTH ECU TECH2 RESET 98074154 JC
In good working used condition, the part number for this unit is GM 98074154 ident JC and the Bosch number is 0 281 014 643. This will need to match the number on the back of the ECU you are replacing.