Hi all, i just rang up audi to get a newthermostat for my audi a3 2.0tfsi 2005, i was usure if i could buy just the thermostat or the whole housing? cardif audi said i could just buy the thermostat and newport said i couldnt. i have found a hella thermostat on euro cars but i have also found just the thermostat could someone please tell me what i need to get to fix the thermostat thankyou if you can help