Settings on workshop level, function (MODEL 204.0/2 as of 2009/modification year 08; 204.077/077 as of 2009/YoM 08; 204.3; 204.375, 204.9 with CODE (442)) - GF54.30-P-2020CE

MODEL 204.0/2 

with CODE (442) Comfort multifunction steering wheel 

as of Model Year 2009 

/modification year 08 

MODEL 204.077/077 as of model year 2009 

/YoM 08 

MODEL 204.3 with CODE (442) Comfort multifunction steering wheel 

MODEL 204.375 

MODEL 204.9 with CODE (442) Comfort multifunction steering wheel 

Function requirements, general 

• Circuit 15R ON

The circuit 15 status is sent by the electronic ignition lock control unit (N73) over the chassis CAN (CAN E) and interior CAN (CAN B).

Function sequence for workshop level settings in general 

The workshop level is used by the technician 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:

• Select "Trip" menu
• Press Accept phone call button on Accept and end phone call button (S111s3) and then the OK (S110s6) button at the same time for t > 3 s.

The display in the multifunction display (A1p13) changes to the 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.

The request is read in by the steering wheel electronics (N135) and sent over the steering LIN (LIN E1) to the steering column tube module control unit (N80). The steering column tube module control unit passes on the request via the chassis CAN to the instrument cluster (A1).

The following menus are accessible:

• Vehicle data menu 
• Dynamometer test mode menu 
• ASSYST-PLUS workshop menu 

Vehicle data menu 

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

• Voltage U in volt and amp draw I in ampere of on-board electrical system
• Data from instrument cluster

  (e.g. version numbers, software releases)

• Engine data (e.g. engine number)
• Oil data (e.g. filling capacity, temperature)
• Vehicle data (e.g. chassis number)

Dynamometer test mode menu 

Activating the roller dynamometer mode prevents faults being entered in the ESP control unit (N30/4) during brake tests on the roller dynamometer.

It is possible to switch between the following settings in the Roller dynamometer mode menu using the left multifunction steering wheel button group:

• "ESP On"
• "ESP OFF with circuit 15 OFF"

When the Workshop level menu is exited and, if the dynamometer test mode was not deactivated beforehand, the Dynamometer test mode menu is automatically called up the next time the ignition sequence is initiated.

ASSYST-PLUS workshop menu 

The following submenus can be selected in the ASSYST-PLUS workshop menu:

• Service data
• Full service

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