Analog Instruments And Moving-Disc Indicators
The instrument cluster has a total of 6 stepper motors for the various instruments. For the first time, moving-disc instruments are used in the instrument cluster.
On the left, the set speed for cruise control is displayed on a moving-disc instrument.
On the right, a moving-disc instrument shows the engine-revolutions advance-warning field.
The engine-revolutions advance-warning field is subdivided into:
- Fixed engine-revolutions advance-warning field
- Variable engine-revolutions advance-warning field
The maximum engine speed warning display is indicated by the tachometer as a function of engine temperature.
The 6 stepper motors in the instrument cluster are used for the:
- Speedometer
- Tachometer (Revolution counter)
- Fuel gauge
- Fuel consumption indicator (E60/E61)
- Engine oil temperature (E63/E64)
- Moving-disc instrument for the speed setting of the cruise control system
- Moving-disc instrument for the variable engine-revolutions advance-warning field
The set speed for the cruise control system and the tach warning are displayed by means of annular indicators (moving rings).
The annular indicator is moved by means of the ring gear, connected to the indicator, the pinion and the stepper motor which is attached to the rear of the light duct.
U.S. vehicles will have speedometers with 0-160 MPH and 0-7000 RPM displays.