Retrofit wiring harness - AZ82.70-P-0001-04TTT

Prepare wiring harness as shown in figure.

Fig 1: Preparing Wiring Harness
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Open rear SAM control unit with fuse and relay module (N10/2) and expose plug positions 20 and 28.
Insert relay from parts kit in plug position C.
Assemble fuses (5 and 14) with 7.5 A fuse.

Fig 2: Identifying Rear SAM Control Unit With Fuse And Relay Module
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Connect adapter wiring harness (2) to the connection line (1) using one of the white voltage supply couplings (3).
Insulate and strap down the second white coupling (4) (not required).
Connect black voltage supply coupling (6) to plug position 27 of the rear SAM control unit with fuse and relay module (N10/2).
Insert flat plug bushing (20) at plug position 20 of the rear SAM control unit with fuse and relay module (N10/2) into chamber 1.

Fig 3: Identifying Adapter Wiring Harness Components
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Route wiring harness (1) along existing lines at the left of the side wall.
Connect ground of left taillamp in luggage compartment (W6/1).

Fig 4: Identifying Ground Of Left Taillamp
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Fasten black coupling for video systems (5) of the wiring harness (1) under the rear seat using self-adhesive felt (arrow) according to figure.

Fig 5: Fastening Black Coupling For Video Systems
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.