See also:

Instrument cluster
1.Speedometer 135i: with fuel gauge 2.  Indicator lamps for turn signals 3.  Indicator and warning lamps 4.  Tachometer 5.  Fuel gauge 135i: engine oil temperature 6.  ...

Remove attached parts following use
Remove auxiliary mirrors, roof or rear luggage racks which are no longer required following use. Attached parts on the vehicle impair the aerodynamics and increase the fuel consumption. ...

Deactivating the system
▷ Press the lever upward or downward twice, arrow 3. ▷ Switch off the ignition. The stored speed is cleared. ...