Rover 75/MG ZT Electronic Control Unit
Many control unit's had numerous part number changes throughout the production run of the car so easiest way to identify the correct one for the car is to check on the unit for the relevant part number. Only the latest part numbers are shown on the website.
On the illustration there is a screw listed as item 15. The part number MG Rover used was AB608141 but their ordering system never recognised that number so it is a mystery as to what it should have been. It was only applicable to Australia, Japan and Taiwan.