Close the windows and glass sunroof
Driving with the glass sunroof and windows open results in increased air resistance and raises fuel consumption.
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. ...
Around the steering wheel: controls and displays
1. Convertible: opening and closing windows
jointly
2. Convertible: opening and closing rear windows
3.Opening and closing front windows
4.Folding exterior mirrors in and out
5.Adjusting exter ...
Engine oil temperature
► Cold engine: the pointer is
at
the low temperature end.
Drive at moderate engine and
vehicle speeds.
► Normal operating temperature:
the pointer is in the middle
or in the ...