i chyanged the thermostat with a new vag one, new sensor in therad too.
i no the thermostat dont open till late as i sat watching the temp gauge in the car, once the temp reached almost top temp it dropped down so i went checked the bottom hose on rad and it started getting warmer, then the engine took abt ten more mins(engine temp now past proper hot mark) before fan kicked in, took temp down to just over 3/4 before doing the same again.
im thinking that the gauge on the dash is reading wrong, thats why i asked abt that last sensor that controls the temp gauge in the car