Mercedes Benz 164 Rear SAM Control Unit

The rear SAM control unit (N10/8) is located on the wheelhouse in the right side of the trunk.
Control
· Exterior lights function, master control unit for the turn signal functions
Model 164.1
Model 251
· Interior lights (IBL)
Model 164.1
Model 251
· Wiper system (WSA)
Model 164.1
Model 251
· Heated rear window (HHS)
Model 164.1
Model 251
· Central locking (CL [ZV])
Model 164.1
Model 251
· Anti-theft alarm system (ATA [EDW])
Model 164.1
Model 251
· Power windows (EFH) (pop-out windows only)
Model 251
Switching of consumers
• Left tail lamp (complete)
• Right tail lamp (complete)
• License plate illumination
• Center high-mounted stop lamp
• Trailer illumination (with code 550)
• Left/right rear door inside handle illumination
• Left/right rear door exit lamp
• Load compartment illumination
• Right rear door central locking motor
• Rear-end door actuation central locking motor
• Fuel filler flap central locking motor
• Rear door locking unit
• Alarm signal horn (USA)
• Alarm signal horn with additional battery via interface (with code 551)
• Lumbar pump (with code 404 or 405)
• Rear-end door ambient lamp (model 251)
Scanning of switches, pickups and sensors
• Circuit 15
• Circuit 54 (stop lamp)
• Fuel tank sensor 1
• Fuel tank sensor 2
• Driver door actuation central locking motor, rotary tumbler
• Front passenger door actuation central locking motor, rotary tumbler
• Left rear door central locking motor, rotary tumbler
• Right rear door central locking motor, rotary tumbler
• Rear door locking unit
• TAG rear-end door lock contact switch
• Signal radio LF radio antenna interference filter
• ATA [EDW] hood switch (with code 551)
• Automatic loading floor switch (model 164 with code 942)
• CL [ZV] radio receiver
• Alarm signal horn with additional battery via interface (with code 551)
Note
In vehicles with code 551 the towing sensor (ATA inclination sensor) for the ATA function is integrated in the rear SAM control unit (N10/8).
In vehicles with trailer hitch with code 550 the trailer recognition control unit is integrated in the rear SAM control unit (N10/8).
Switching the following relays
• Circuit 15R relay
• Circuit 15Rx relay (power outlets)
• Heated rear window relay
• Rear wiper relay
• Trailer circuit 15R relay
• Deluxe seat relay
• Electric loading floor retract relay (model 164 with code 942)
• Electric loading floor extend relay (model 164 with code 942)
• CAN link between rear SAM control unit and cockpit CAN-B voltage distributor (plug G)
• CAN: Overhead control panel control unit (plug G)
The rear SAM control unit (N10/8) is a device on the CAN-B in the overall network.

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