I have for sale my Memoscan U381 diagnositics hand help unit.
This plugs into the ODBII port on the Rover75/ZT and can be used to look at error codes, reset them.
Here's a link to the product: http://www.diagnostic-tools.net/Code%20scanner/U581/u581.htm?ProID=14
I used this with my 1.8T ZTT but have since sold the car.
It is in excellent condtion and comes with leads and cary bag.