Shown on model 222, CLASSIC view |
1 | Speedometer |
2 | Tachometer |
3 | Fuel level indicator |
4 | Coolant temperature gauge |
A1 | Instrument cluster |
P54.33-5510-75
The symbols of the indicator and warning messages are described in a separate document.
Shown on model 222, SPORT view |
1 | Speedometer |
2 | Tachometer |
3 | Fuel level indicator |
4 | Coolant temperature gauge |
A1 | Instrument cluster |
P54.33-4964-75
Shown on model 222, PROGRESSIVE view |
1 | Speedometer |
2 | Tachometer |
3 | Fuel level indicator |
4 | Coolant temperature gauge |
A1 | Instrument cluster |
P54.33-4965-75
Location
The instrument cluster (A1) is located in the dashboard on the driver-side. Between the instrument cluster and the Audio/COMAND display (A40/8) is the center instrument panel display section (A40/19) which displays the ATA function indicator and the airbag ON/OFF indicator lamps.
Tasks
The instrument cluster has the following tasks:
Reading in of sensors and signals
Evaluation of input factors
Output of warning tones and indicator tones
Output of signals
Reading in of sensors and signals
The signals and requests are read in by the instrument cluster via the user interface CAN (CAN HMI) or the combined display section via the instrument panel LIN (LIN 1).
Evaluation of input factors
The input factors that have been read in are evaluated by the integrated microprocessor and the relevant components are then actuated.
Output of warning tones and indicator tones
The instrument cluster actuates the instrument cluster speaker (H4/61) in the driver footwell to output warning and indicator tones which are requested by the systems installed in the vehicle.
Output of signals
The instrument cluster sends information and data over the following connections:
User interface CAN
High-speed video link (HSVL)
User interface CAN
The instrument cluster transmits information and data via user interface CAN to various control units.
HSVL
The instrument cluster is connected to the head unit (A26/17) via a HSVL. Via this interface, the instrument cluster transmits signals to the displays and graphics in the Audio/COMAND display. With code 463 (Head-up display), the instrument cluster is connected to the head-up display (A40/12) via an HSVL line. Via this interface, the instrument cluster sends signals for the displays and graphics to the head-up display.
Variants
The right and center display areas of the instrument cluster are freely programmable.
The following contents can be selected:
SPORT, CLASSIC (right side of display area)
Tachometer
Power meter (model 222.173)
Navigation instructions
ECO display
Consumption data
Apps
PROGRESSIVE (right side of display area)
Date
Navigation instructions
ECO display
Consumption data
Apps
PROGRESSIVE (center of display area)
Assist graphic
Power meter (model 222.173)