Retrofit wiring harness of heated seats for front seats - AN91.30-P-0001-01A

For wiring diagram see "Wiring diagrams Model 210, vol. 2, Gr. 91.

Route heated seats wiring harness as per drawing.

The color coding on the wiring harness must match that on the main wiring harness. It identifies the emergence of the wiring harness from the cable ducts.

1. Connect 1-pin connector (2.5 mm ² , red/green-gray) to fuse box in rear (F4) fuse F4-18D.
2. Connect 1-pin connector (0.5 mm ² , black/ white) to fuse box F1 fuse F1-12C.
   Fig 1: Identifying Retrofit Wiring Harness Of Heated Seats For Front Seats

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
3. Route branch-off line for heated seats control unit (N25/5) or for left front heated seat switch (N25/5s1) and right front heated seat switch (N25/5s2) in the center console cable duct.
   Fig 2: Identifying Route Branch-Off Line For Heated Seats Control Unit Or For Left Front Heated Seat Switch

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
4. Route ground line (brown) as far as ground of left front seat crossmember (W18) and connect.
   Fig 3: Identifying Route Ground Line As Far As Ground Of Left Front Seat Crossmember And Connect

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
5. Route 4-pin connector for left front connector block (X55/3) or right front connector block (X55/4) through recess clearance in the carpet in the area of the crossmember.
   Fig 4: Identifying Fuse And Relay BoxF1 And Rear Fuse BoxF4 Function

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
6. Mill cutout for heated seat switch in the center console cover, or use new cover with switch cutout.
   Fig 5: Identifying Front Heated Seats Control Unit And Left Front Heated Seat Switch

   Courtesy of MERCEDES-BENZ OF NORTH AMERICA.