They change the therm to comply with euro regs mid 2007. Post then its a sensore'd one. The reg number will throw a part that is wrong..you need the vin The thermostat is not made anymore. I sourced mine from a guy that imports from USA..he gets maybe 2 per week theyre that hard to find. It was 100 quid plus 30 for the sensor that is sold separately..buy it..unless you can reliably check the sensor is crap..even then for 30 quid its worth doing as the therm install is a pig. If you use without you need to re-map. Mine..because of the sensor, was stuck 2/3rds shut...not open as default on those without. I changed everything, rad, egr valve, egr solenoid etc, [ btw...between engine and firewall theres a lead thats part of the egr system..mine was disconnected..you wouldnt know as you cant see it at all] shocks, rear shock bushes, belts, oil hubs etc etc etc. The front of the vehicle has to come off so did everything. Im lucky in that my garage lets me bring my parts..which I source USA, I paid 800 quid labour only plus liquids