Instrument cluster (IC), function - GF54.30-P-0002SK: Notes
Model 171.4
The instrument cluster (A1) discharges the following functions:
- For information on vital vehicle operating conditions
- Warn the driver about critical operating conditions
- As display unit for various systems
- As computer and display for active service system PLUS (ASSYST PLUS)
- As trip computer (TRIP)
Integrated within the instrument cluster (A1) are:
- Upper multifunction display (A1p13)
- Lower multifunction display (A1p15)
- Various display instruments
- Warning and indicator lamps
- Warning buzzer (A1h1)
In addition, the instrument cluster (A1) transmits and receives signals through the Controller Area Networks Class C (engine compartment) (CAN-C) and the Controller Area Network Class B bus (interior) (CAN-B).
The instrument cluster module (A1) is equipped with a microprocessor to process incoming signal traffic. The program and necessary data are stored in an electronic memory chip.
The instrument cluster (A1) is controlled at the:
- Left multifunction steering wheel pushbutton group (S110)
- Right multifunction steering wheel pushbutton group (S111)
- trip odometer reset button (A1s3)
- instrument and search illumination rheostat button (+/-)
Following replacement of the instrument cluster (A1) it will be necessary to enter the ID code using STAR DIAGNOSIS. The coding and kilometer reading are then transmitted automatically from a vehicle control unit to the new instrument cluster (A1) via the Controller Area Network (data bus/CAN bus) (CAN).
| Instrument cluster (IC), networking of components | GF54.30-P-0002-06SK | |
| Instrument cluster activation, function | GF54.30-P-2006SK | |
| Instrument cluster illumination, function | GF54.30-P-2007SK | |
| Adjusting switch and controls illumination, function | GF54.30-P-2010SK | |
| Function to display malfunction/warning indication via indication lights | up to 31.5.05 | GF54.30-P-2011SK |
| as of 1.6.05 | GF54.30-P-2011SKA | |
| Display monitoring/warning messages via multifunction display, function | GF54.30-P-2012SK | |
| Output acoustic warning messages, function | Audible turn signal indicator | GF54.30-P-2013SK |
| Warning buzzer | GF54.30-P-2013SKB | |
| Indicator lamp test and engine running detection, function | up to 31.5.05 | GF54.30-P-2014SK |
| as of 1.6.05 | GF54.30-P-2014SKA | |
| Displaying fuel quantity, function | GF54.30-P-3018SK | |
| Display outside temperature, function | up to 31.5.05 | GF54.30-P-3019SK |
| as of 1.6.05 | GF54.30-P-3019SKA | |
| Display coolant temperature, function | GF54.30-P-3020SK | |
| Display engine speed, function | GF54.30-P-3021SK | |
| Display distance, function | GF54.30-P-3022SK | |
| Display transmission information, function | Model 171.442 with transmission 722.6 except code (428) Steering wheel shift buttons | GF54.30-P-3023SK |
| Model 171.442 with transmission 722.6 with code (428) Steering wheel shift buttons | GF54.30-P-3023SKB | |
| Model 171.4 (except 171.473/44) with transmission 722.9 except code (428) Steering wheel shift buttons | GF54.30-P-3023SKC | |
| Model 171.4 with transmission 722.9 with code (428) Steering wheel shift buttons Model 171.473 with transmission 722.9 | GF54.30-P-3023SKD | |
| Display time, function | Except code (527) COMAND APS with single DVD drive (with navigation) | GF54.30-P-3024SK |
| With code (527) COMAND APS with single DVD drive (with navigation) | GF54.30-P-3024SKB | |
| Display speed, function | GF54.30-P-3025SK | |
| Battery charge/alternator monitoring, function | GF54.30-P-3027SK | |
| Coolant/washer fluid level voltage coding, function | GF54.30-P-4001SK |