Head Unit/Instrument Cluster Control Unit, Basic Function - GF82.85-P-9893A

Model All (CAR) 

with code 545 (Connect 5 (NTG6)) 

Example illustration of head unit/instrument cluster control unit 

Courtesy of MERCEDES-BENZ USA

Overview 

This document contains information on:

• General 
• Function requirements 
• Function 

General 

The head unit/instrument cluster control unit is the controller unit for the instrument cluster and the entertainment and communication systems integrated into the vehicle.

The head unit/instrument cluster control unit is a subscriber in the following bus systems:

• Telematics CAN
• User interface CAN

The head unit/instrument cluster control unit is located in the instrument panel on the driver's side.

Function requirements 

• Circuit 30t ON

Function 

The head unit/instrument cluster control unit controls the following functions:

• Instrument cluster display control
• Multimedia system control
• Radio mode
• Media mode
• Smartphone integration
• Telephone

The head unit/instrument cluster control unit contains the following components depending on the equipment:

• Radio tuner
• Amplifier
• Bluetooth® receiver
• WLAN receiver

	Further basic functions
	Instrument cluster control, basic function		GF54.30-P-1001A
	Multimedia system, basic function		GF82.85-P-9900A