Hi Everyone I have Audi A8L 2005 4.0tdi quattro,in the morning when i start the car the outside temperature in the cluster is showing the right temperature but after few minutes it starts dropping to -45 with snow flake sign,so it stops the A/C and even today it was 19*c it was showing -40 and no A/C.I have changed the outside temperature sensor.Any suggestions Please.It is a uk model car.