Touchscreen, Component Description - GF54.21-P-4509FG

Model 213.1 up to model year 2021 with code 447 (Touchscreen in rear) 

Shown on model 213.1 with code 447 (Rear touchscreen) 

Location 

The touchscreen is on the armrest of the rear bench seat.

Tasks 

The touchscreen is the central control for the rear occupants for functions such as climate control and rear seat, ambient light, sliding roof settings as well as operation of media playback.

The displayable functions can be operated using the touchscreen. To this end, the touchscreen fulfills the following tasks:

• Operation and display 
• Receiving signals 
• Sending signals 

Operation and display 

The user input (operating gestures and handwriting recognition) is detected by the touch-sensitive display and displayed visually on the same display after internal processing.

Receiving signals 

The touchscreen receives the following signals:

• Circuit 30T and circuit 31 via a direct line
• CAN messages via telematics CAN (CAN A)

Sending signals 

The touchscreen sends the control signals via the telematics CAN to the head unit (A26/17).

Body 

The touchscreen has a 6.5" touch-sensitive liquid crystal display (LCD).

Wiring diagram for touch pad

PE82.00-P-2061-97DBA