Instrument Cluster

INSTRUMENT CLUSTER












The instrument cluster incorporates the five familiar analog gauges along with indicator/warning lights and Liquid Crystal Displays.

All the indicator/warning lights are LEDs and not replaceable. Critical warning indicators use two LEDs for a safety margin. There are five conventional bulbs for the back lighting of the LCD which can be replaced if necessary.

The LCD provides:
- 6 digit total mileage
- 4 digit trip mileage
- Manipulation DOT
- Outside temperature display
- 20 digit read-out with reminder arrows
- Service Interval Indicator
- Automatic transmission selector position
- Automatic transmission driving program

When KLR is switched on, mileage and temperature are displayed. All displays are illuminated from KL15.

The back lighting intensity of the LCD's is dependent on available light and is controlled by a photo-transistor in the lower left corner of the cluster. When the parking lights are switched on, the dash mounted dimmer wheel controls the intensity of the back lighting.

Service Interval Indicator (SIA)







The Service Interval Indicator of the E38 operates in the same manner as previous SIA systems.

The reset of Service Indicator is carried out with the reset tool only.

Total Mileage/Trip Mileage

Mileage can be displayed with the key off for 25 seconds if the trip meter button is pressed.

Total mileage is stored in non-volatile memories of the IKE and LM to protect against loss.

Automatic Transmission Selector Position/Driving Program







The selector lever position and driving program are signaled to the IKE from the AGS control module over a single wire circuit. The only driving program indicator in the cluster on US/CDN cars will be the "M".

Analog Instruments

Analog instruments are controlled by the IKE from signals it receives over separate inputs. The needle of the coolant temperature gauge is centered if coolant temperature is between 75 °C - 110 °C.

The fuel economy indicator returns to its starting point when road speed is reduced to 5 MPH and doesn't move again until road speed is above 8 MPH.

Certain indicator/warning lights are illuminated momentarily when KL 15 is switched on as a pre-drive check. The indicators will switch off after 2 seconds or within 1 second after the engine starts.