Electrical function diagram for volume/sound settings, function - PE82.60-P-2059-97RAB

Code	Designation	Position
1	Multifunction steering wheel button group, signal	9B
1	Multifunction steering wheel button group, signal	8E
1	Multifunction steering wheel button group, signal	8H
2	Vehicle speed, signal	8H
3	Audio, signal	4J
A1	Instrument cluster	8E
A2/56	Radio and navigation unit	8J
CAN B	Interior CAN	8G
CAN C	Engine compartment CAN	8D
Code 810	Sound system	2H
LIN E1	Steering LIN	10B
MOST	Media Oriented System Transport	5J
MOST	Media Oriented System Transport	5K
N40/3	Amplifier for sound system	2J
N80	Steering column module	7B
S110	Left multifunction steering wheel button group	11A
S111	Right multifunction steering wheel button group	13A

Fig 1: Volume/Sound Settings - Electrical Function Diagram

Courtesy of MERCEDES-BENZ USA