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Home >> Mercedes Benz >> 2019 >> CLS450 Base >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System - Body - 257 Chassis 8 Of 8 >> Wiring Diagrams >> Sound Amplifier Control Unit Wiring Diagram >> Sound Amplifier Control Unit Wiring Diagram - PE82.62-P-2101-97XCB

Sound Amplifier Control Unit Wiring Diagram - PE82.62-P-2101-97XCB

Model 257, 290 as of model year 2021 with code 811 (High-End sound system) Control unit N40/7 

Code: Designation: Position:
A0 Use of wiring diagrams 129L
A26/17 Head unit 37L
B25/28 Left front active engine noise compensation microphone 98L
B25/29 Right front active engine noise compensation microphone 100L
B25/30 Left rear active engine noise compensation microphone 102L
B25/31 Right rear active engine noise compensation microphone 104L
CAN C1 Drive train CAN 33K
Code 362 HERMES LTE 25E
Code 97B Engine noise reduction via speaker 97A
Code B63 Sporty engine sound 30E
Code F257 MODEL SERIES 257 74D
Code F290 Model series 290 30F
Code F290 Model series 290 69D
Code L LEFT-HAND DRIVE 54E
Code L LEFT-HAND DRIVE 57E
Code L LEFT-HAND DRIVE 49H
Code L LEFT-HAND DRIVE 44H
Code M016 Uprated high-performance engine 30E
Code M256 6-CYLINDER INLINE SPARK-IGNITION ENGINE M256 30E
Code R RIGHT-HAND DRIVE 54F
Code R RIGHT-HAND DRIVE 57F
Code R RIGHT-HAND DRIVE 49H
Code R RIGHT-HAND DRIVE 44H
H4/115 Left front center overhead control panel midrange speaker (3D sound) 84L
H4/116 Right front center overhead control panel midrange speaker (3D sound) 86L
H4/117 Left center rear center midrange speaker (3D sound) 87L
H4/118 Right center rear center midrange speaker (3D sound) 83L
H4/119 Left center midrange speaker (3D sound) 89L
H4/120 Right center midrange speaker (3D sound) 91L
H4/38 Rear woofer 24L
H4/42 Left front footwell woofer 40L
H4/43 Right front footwell woofer 43L
H4/68 Left front door sound system tweeter 59L
H4/69 Right front door sound system tweeter 56L
H4/70 Left rear door sound system tweeter 61L
H4/71 Right rear door sound system tweeter 63L
H4/72 Left front door sound system woofer/midrange speaker 48L
H4/73 Right front door sound system woofer/midrange speaker 51L
H4/76 Center instrument panel tweeter 81L
H4/78 Center instrument panel midrange speaker 93L
H4/80 Left rear door sound system midrange speaker 65L
H4/81 Right rear door sound system midrange speaker 67L
H4/86 Left front door midrange speaker 46L
H4/87 Right front door midrange speaker 52L
H4/92 Left rear surround sound system tweeter 73L
H4/93 Left rear surround sound system midrange speaker 76L
H4/94 Right rear surround sound system tweeter 71L
H4/95 Right rear surround sound system midrange speaker 74L
K40/5 Rear fuse and relay module 5L
K40/5 Rear fuse and relay module 13L
K40/5f408 Fuse 408 15L
K40/5f435 Fuse 435 4L
K40/5f475 Fuse 475 11L
N112/9 HERMES control unit 27L
N40/14 Rear woofer amplifier 19L
N40/7 Advanced sound system amplifier control unit 4A
N40/7 Advanced sound system amplifier control unit 112A
N40/7 Advanced sound system amplifier control unit 126A
N40/7 Advanced sound system amplifier control unit 12A
N40/7 Advanced sound system amplifier control unit 20A
N40/7 Advanced sound system amplifier control unit 28A
N40/7 Advanced sound system amplifier control unit 36A
N40/7 Advanced sound system amplifier control unit 45A
N40/7 Advanced sound system amplifier control unit 52A
N40/7 Advanced sound system amplifier control unit 60A
N40/7 Advanced sound system amplifier control unit 69A
N40/7 Advanced sound system amplifier control unit 77A
N40/7 Advanced sound system amplifier control unit 85A
N40/7 Advanced sound system amplifier control unit 93A
N40/7 Advanced sound system amplifier control unit 101A
W6/1 Left tail lamp trunk ground point 17E
W6/1 Left tail lamp trunk ground point 5E
W6/1 Left tail lamp trunk ground point 12E
X1/77 Left midrange speaker electrical connector 82E
X1/78 Right midrange speaker electrical connector 90E
X1/78 Right midrange speaker electrical connector 97G
X1/79 Midrange speaker/eyeglasses compartment electrical connector 84H
X18/53 Driver side cockpit/frame floor assembly electrical connector 93E
X18/53 Driver side cockpit/frame floor assembly electrical connector 80F
X23/28 Rear shelf sound system electrical connector 74F
X30/21 Drive train CAN (CAN CD potential distributor 32L
X35/1 Driver door electrical connector 55F
X35/1 Driver door electrical connector 58E
X35/1 Driver door electrical connector 50H
X35/1 Driver door electrical connector 46H
X35/2 Front passenger door electrical connector 55E
X35/2 Front passenger door electrical connector 58F
X35/2 Front passenger door electrical connector 50H
X35/2 Front passenger door electrical connector 46H
X35/3 Left rear door electrical connector 61E
X35/3 Left rear door electrical connector 65E
X35/4 Right rear door electrical connector 62E
X35/4 Right rear door electrical connector 67E
G14556054Courtesy of MERCEDES-BENZ USA
G14556055Courtesy of MERCEDES-BENZ USA
G14556056Courtesy of MERCEDES-BENZ USA
G14556057Courtesy of MERCEDES-BENZ USA
G14556058Courtesy of MERCEDES-BENZ USA
G14556059Courtesy of MERCEDES-BENZ USA
G14556060Courtesy of MERCEDES-BENZ USA
G14556061Courtesy of MERCEDES-BENZ USA