Settings on workshop level, function - GF54.30-P-2020GM

MODEL 164.1 as of model year 2009/YoM 08 model refinement package

MODEL 164.8, 251.0/1 as of model year 2009/YoM 08

Function requirements, general

Vehicle speed v = 0 km/h
Circuit 15R ON

The status of circuit 15 is sent by the EZS control unit (N73) to the interior CAN (CAN B).

Function sequence for workshop level settings in general

The workshop level serves 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:

Close driver door
Switch on circuit 15R
Select the display "main odometer or trip odometer or miles"
Press trip odometer reset button (A1s3) three times within t = 1.5 s

The display in the multifunction display (A1p13) changes to the Workshop level menu. By pressing the left multifunction steering wheel button group (S110) it is possible to change between each of the menus and the submenus or to scroll through different lists. The steering wheel electronics (N135) read in the control signals and send this over the steering LIN (LIN E1) to the steering column tube module (N80). The steering column tube module sends this over the engine compartment-CAN (CAN C) to the instrument cluster (A1).

The following menus are accessible:

"Vehicle data" menu
Dynamometer test mode menu
"Active Service System PLUS workshop" menu
"High-voltage system voltage indicator" menu (with model 164.195)

"Vehicle data" menu

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

Instrument cluster data (e.g. version numbers, software releases)
Engine oil level

"Rolling test" menu

Activating the rolling test mode serves to ensure that during the brake test on the roller dynamometer faults are no entered into the ESP control unit (N47-5) (except model 164.195) or the regenerative braking system control unit (N30/6) (with model 164.195).

Pressing the left multifunction steering wheel button group when in the Dynamometer test mode menu, enables changing between the following settings:

"On"
"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.

"Active Service System PLUS workshop" menu

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

Service data
"Positions"
"Additional work"
"Confirmations"

"High-voltage system voltage indicator" menu (with model 164.195)

The voltage in the high voltage system can be indicated in the "High voltage system voltage indicator" menu. It is also indicated whether the high voltage system is "de-energized".

Fig 1: Display - High-Voltage System Voltage Indicator Menu Screen

Courtesy of MERCEDES-BENZ USA

Instrument cluster, component description	A1 Model 164 (except 164.195), model 251	GF54.30-P-6000GM
Instrument cluster, component description	Model 164.195 * for USA only	GF54.30-P-6000GQH
Component description for regenerative braking system control unit	N30/6 Model 164.195 * for USA only	GF42.22-P-1100GQH
Component description for ESP control unit	N47-5 Model 164 (except 164.195), model 251	GF42.45-P-5118GM
Component description for EZS control unit	N73 Model 164 (except 164.195), model 251	GF80.57-P-6003GM
Component description for EZS control unit	Model 164.195 * for USA only	GF80.57-P-6003GQH
Steering column tube module control unit, component description	N80	GF54.21-P-6051GM