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Home >> Mercedes Benz >> 2021 >> S560 4Matic >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instruments - 217 Chassis (2 Of 8) >> Basic Knowledge >> Settings On Workshop Level, Function - GF54.30-P-2020LF

Settings On Workshop Level, Function - GF54.30-P-2020LF

Model 217, 222 

Function requirements, general 

IMPORTANT The electronic ignition lock control unit (N73) transmits the status of circuit 15 via the user interface CAN (CAN HMI) to the instrument cluster (A1).

Workshop level adjustments, general 

The workshop level is used by technicians in the workshop for reading out vehicle and service data and provides assistance with carrying out the service.

The "Workshop level" menu is activated as follows as of 01.06.2017 (model 222) or 01.12.2017 (model 217):

The instrument cluster switches to workshop level. Via the instrument cluster finger navigation pad, it is possible to scroll between the respective menus and submenus or in different lists. The selection is made by pressing the instrument cluster finger navigation pad. The "Workshop level" menu is activated as follows up to 31.05.2017 (model 222) or 30.11.2017 (model 217):

The instrument cluster switches to workshop level. The scroll forward/back button (S110s1) of the left multifunction steering wheel button group (S110) can be used to scroll between the respective menus and submenus and in various lists. Selection is then made by pressing the OK button.

The request is read in by the steering wheel electronics (N135) and transmitted to the steering column tube module control unit (N80) via the steering wheel CAN (CAN LR) (as of 01.06.2017 (model 222) or 01.12.2017 (model 217)) or via the steering LIN (LIN E1) (up to 31.05.2017 (model 222) or 30.11.2017 (model 217)). The steering column tube module control unit sends this request to the instrument cluster via chassis FlexRay (Flex E), electronic ignition lock control unit and user interface CAN.

The following menus are accessible:

"Vehicle data" menu 

The following data can be called up in the vehicle data menu:

High-voltage potential status (model 222.004/057/104/157/163/173) 

G12631449Courtesy of MERCEDES-BENZ USA

Display for:

High-voltage potential status (model 222.004/057/104/157/163/173) 

G12631450Courtesy of MERCEDES-BENZ USA

Display for:

"Dynamometer test" menu 

Activating the dynamometer test prevents faults being entered in the Electronic Stability Program control unit (N30/4) during the brake test on the roller dynamometer.

The following settings can be selected in the dynamometer menu:

IMPORTANT If the workshop menu is left and the menu "Dynamometer test" was not deactivated prior to this, it will be automatically called up during the next ignition cycle.

"Change brake pad" menu 

In the "Change brake pad" menu, the following settings can be selected:

"ASSYST PLUS" menu 

The following data can be called up in the ASSYST PLUS menu:

IMPORTANT After a service is performed, the service interval is reset in this menu.

"Head-up display" menu (with CODE 463 (Head-up display)) 

In the "Head-up display" menu, various parameter settings of the head-up display may be set.

  Overview of system components, instrument cluster (IC) component description Model 217, 222
up to model year 2018
GF54.30-P-9996LF 
    Model 217, 222
as of model year 2018
GF54.30-P-9996LFM