Pull forward wiring harness for front seat backrest heater mat (2) under front seat backrest upholstery. Disconnect wiring harness plug for front seat backrest heater mat (1). Remove front seat backrest and front seat backrest upholstery - see operations "Front Seat Backrest, Remove and Install" and "Front Seat Backrest Upholstery, Remove and Install" in group "C". Detach heater mat from front seat backrest.
 Install, Connect Detach protective strips from adhesive strips on heater mat. Adhere heater mat (3) onto backrest cushion corresponding to the old position. Install front seat backrest upholstery. Attach front seat backrest. Connect wiring harness plug for front seat backrest heater mat (1). Route wiring harness for front seat backrest heater mat (2) under front seat backrest upholstery. | 
Remove, Disconnect 