Head Unit Control Unit, Basic Function - GF82.85-P-9891A

Model all (CAR) with code 521 (Connect 20 Mid (NTG7)) 

Model all (CAR) with code 525 (Connect 20 High (NTG7)) 

Model all (CAR) with code 534 (Connect 20 Premium (NTG7)) 

Model all (CAR) with code 535 (Connect 20 Premium (NTG7)) 

Model all (CAR) with code 547 (Connect 20 entry (NTG6)) 

Model all (CAR) with code 548 (Connect 20 MID (NTG6)) 

Model all (CAR) with code 549 (Connect 20 HIGH (NTG6)) 

Overview 

This document contains information on the functions, location and structure of the head unit control unit.

General 

The head unit control unit is the central controller unit for the entertainment and communication systems integrated in the vehicle.

Depending on the equipment installed, the head unit control unit controls the following functions:

• Multimedia system control
• Radio mode
• Media mode
• TV mode
• Smartphone integration
• Telephone
• Navigation
• WLAN hotspot
• Voice control

The head unit control unit is connected to the network architecture of the vehicle.

Location 

The head unit is located in the instrument panel (e.g. on the driver's side or in the center) or under the right front seat.

Function requirement 

• Circuit 30t ON

Structure 

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

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

	Component descriptions
	Head unit, component description	Model 223 with code 521 (Connect 20 Mid (NTG7))	GF82.85-P-3140A
		Model 223 with code 534 (Connect 20 Premium (NTG7))
		Model 243 with code 547 (Connect 20 entry (NTG6))	GF82.85-P-3140B
		Model 243 with code 548 (Connect 20 MID (NTG6))
		Model 243 with code 549 (Connect 20 HIGH (NTG6))
		Model 206 with code 521 (Connect 20 Mid (NTG7))	GF82.85-P-3140C
		Model 206 with code 525 (Connect 20 High (NTG7))
		Model 297 with code 534 (Connect 20 Premium (NTG7))	GF82.85-P-3140D
		Model 297 with code 535 (Connect 20 Premium (NTG7))