Lower Control Panel, Component Description - GF54.25-P-4270LFM

Model 217, 222

with code 446 (Touchpad only)

Shown here as variant, except AMG

Courtesy of MERCEDES-BENZ USA

AMG-specific control elements, shown on lower control panel with AMG vehicle

Courtesy of MERCEDES-BENZ USA

Location

The lower control panel is installed into the center console.

Tasks

The lower control panel forwards the status signals through operation of the integrated control elements and receives the actuation for the integrated display elements. The volume adjustment button can be used to change the volume level by turning it (upwards or downwards) and, on AMG vehicles, it can switch the head unit on and off by a press of the button, or it can mute the audio source.

The lower control panel receives the following signals:

Circuit 30t and circuit 31 over the LCP-LIN (LIN A3) from touchpad (A105)
Actuation of indicator lamps for various buttons over the LCP-LIN from the touchpad
Actuation of flashing indicator in hazard warning system button over a direct line from the front SAM control unit (N10/6)

The lower control panel sends the following signals:

Actuation of integrated controls over the LCP-LIN to the touchpad
Actuation of hazard warning system button via direct line to the front SAM control unit

Structure

The following buttons may be installed on the lower control panel depending on the equipment installed:

Radio button
Hazard warning system button
Telephone button
"ON" button
"CAR" button
ECO start/stop function button (except hybrid vehicles)
Navigation button
Media button
Volume control button
Vehicle level button
Comfort/Sport button (AMG vehicles)
Operating mode selection button (hybrid vehicles)
Manual shift mode button (AMG vehicles)
DYNAMIC SELECT switch
Parking system button (with code 235 (Active Parking Assist with PARKTRONIC) or code P44 (Parking Package))
PARKTRONIC button (with code 235 (Active Parking Assist with PARKTRONIC) or code P44 (Parking Package))
AMG ESP® Sport OFF button (AMG vehicles)
Rear head restraints button
Button "Seat"
Sport exhaust system button (AMG vehicles)

Wiring diagram for front central operating unit

PE82.00-P-2060-97SEB