Thermostat change on Land Rover LR3, Discovery 3 V8 4,4 Liter

Here is how to install and change your thermostat on you Land Rover LR3, or any car having the Jaguar engine V8 4,4. Liter installed.
straight forward process, and will take you a little close to an hour to overcome. the sparepart itself is not that expensive, so its the time consumed on your end that is required.
take your time dont rush and you will be fine.
CAUTION : dont do this work on a hot engine - ONLY cold engines apply.
drive safely, best regards Rene