Outside Temperature Display: Service and Repair
Removing and Installing/Replacing External Temperature Display (Z3 and M Roadster)
Remove radio.
Unfasten heater controls and press inwards.
Loosen union nut of external temperature display through radio aperture and press display out forwards.
Mark connectors and pull off.
Installation:
Larger distance between edge and threading of union nut faces display. Install display vertically and brace union nut while tightening.