Instrument Cluster (IC), Function - GF54.30-P-0002RF
Model 205, 253
Control units connected to chassis FlexRay and interior CAN
Control units connected to telematics CAN, AMG CAN, engine CAN, drive CAN, diagnostics CAN, user interface CAN, hybrid CAN, peripherals CAN, vehicle dynamics CAN, fuel cell CAN
Display elements
Instrument cluster, general
The instrument cluster notifies the driver of all dynamic and static driving conditions as well as about the current condition of the systems installed in the vehicle. In the event of faulty vehicle functions or functions relevant to safety, corresponding warnings are issued via the instrument cluster.
To transmit the information to the driver, the following displays can be shown in the instrument cluster:
- Permanent displays (e.g. vehicle speed, engine speed, tank content)
- Indicator lamps (green, yellow or blue) (e.g. turn signals, high beams)
- Warning lamps (red) (e.g. coolant level, brake fluid level)
- Multifunction display (e.g. driver assistance systems, menu sequence)
Detailed information on the symbols for the warning and indicator messages can be found in a separate document.
Operation of the instrument cluster in model 205 as of 01.06.2018, in model 253 (except model 253 99) as of 01 06 2019 or in model 253 99:
- It is possible to scroll within a menu in the submenus or in lists using the scroll forward and back button (S110s1).
- The "Back" (S110s4) button can be used to jump from the menu or submenu to the next higher menu level.
- The "O. K." button. (S110s6) confirms the corresponding selection or displayed messages.
The available main menus and submenus depend on the vehicle equipment.
The instrument cluster makes the following functions possible:
- Function sequence for activate instrument cluster
- Function sequence for indicator lamp test (except for code 464 (Digital instrument cluster full display))
The following functions are described in separate documents:
- Control/warning messages, function
- Display operating conditions, function
- Comfort displays, function
- Trip computer, function
Via the instrument cluster multifunction steering wheel button group (S163/1), different menu levels in the instrument cluster (A1) can be displayed:
- The "Home" and "Back" button (S163/1s14) can be used to jump from the menu or submenu to the next higher menu level. Via a long press of the "Home" and "Back" button it is possible to jump to the main menu.
- Via the instrument cluster finger navigation pad (S163/1s10) it is possible to navigate in menus (right/left) or lists (up/down). By pressing the instrument cluster finger navigation pad, the respective selection or pending messages can be confirmed.
An acoustic feedback takes place during the operation of the control elements in the instrument cluster multifunction steering wheel button group. The steering wheel electronics sends the status of the control elements over the steering wheel CAN (CAN LR), steering column tube module control unit (N80), suspension FlexRay (Flex E), electronic ignition lock control unit (N73) and the user interface CAN (CAN HMI) to the instrument cluster. The instrument cluster directly actuates the instrument cluster speaker.
Operation of instrument cluster in model 205 up to 31.05.2018 or in model 253 (except model 253.99) up to 31.05.2019:
Via the left multifunction steering wheel button group (S110) and the right multifunction steering wheel button group (S111), different menu levels can be displayed in the instrument cluster:
- It is possible to scroll in the main menu via the system selection button (S110s3).
- Settings on workshop level, function
- Active Service System PLUS (ASSYST PLUS) function
- Head-up display function (with CODE 463 (Head-up display))
Function sequence for activate instrument cluster
The multifunction display of the instrument cluster is activated by waking up the user interface CAN, e.g. by:
- Unlocking the vehicle through radio frequency
- Driver door opened
- Change of circuit status for circuit 15
After bus idle, the instrument cluster remains active for t = 30 s. If there is a fault, this time is extended to t = 120 s.
Additional function requirement for indicator lamp test (except for code 464 (Digital instrument cluster full display))
- Terminal 15 ON
The electronic ignition lock control unit sends the circuit 15 status to the instrument cluster via user interface CAN.
Function sequence for indicator lamp test (except for code 464 (Digital instrument cluster full display))
The indicator lamp test serves the function test of certain warning lamps and indicator lamps in the instrument cluster. The instrument cluster performs this test automatically each time circuit 15 is switched on.
The function of the following warning and indicator lamps is checked during the indicator lamp test:
- Fuel reserve indicator lamp
- Brake fluid and parking brake indicator lamp
- Seat belt warning lamp
- Parking brake indicator lamp
- Parking brake indicator lamp
- Supplemental restraint system indicator lamp
- Preglow indicator lamp (on diesel engine)
- Antilock brake system indicator lamp
- Regenerative brake system indicator lamp (hybrid vehicles)
- ESP®/ASR OFF warning lamp
- Electronic Stability Program warning lamp
- ESP SPORT indicator lamp (model 205.086/087/286/287/386/387/486/487)
- Brake system warning lamp
- Coolant temperature warning lamp
- Engine diagnosis indicator lamp
- DISTRONIC warning lamp (with code 239 (Active Distance Assist DISTRONIC) or code 258 (COLLISION PREVENTION ASSIST) or code 23P (Driving Assistance Package))
- Tire pressure monitor warning lamp (with code 475 (Tire pressure monitor))
- Power steering warning lamp
The indicator lamp test is terminated when the engine is started.
The function of the following indicator lamps is not checked:
- Left turn signal indicator light
- Right turn signal indicator light
- High beam indicator lamp
- Rear fog lamp indicator lamp
- Standing lamps indicator lamp
- Low beam indicator lamp
| Control/warning messages, function | GF54.30-P-2001RF | ||
| Display operating conditions, function | GF54.30-P-3041RF | ||
| Comfort displays, function | GF54.30-P-3043RF | ||
| Trip computer, function | GF54.30-P-3044RF | ||
| Settings on workshop level, function | GF54.30-P-2020RF | ||
| Active service system (ASSYST PLUS), function | GF00.20-P-0004RF | ||
| Head-up display, function | Model 205, 253 with code 463 (Head-up display) |
GF54.30-P-3048RF | |
| Overview of system components, instrument cluster (IC) component description | GF54.30-P-9996RF |