Overview of system components of comfort heating systems - GF91.30-P-9990FL

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MODEL 212 with CODE 401 (Front deluxe seats, incl. seat heating and seat ventilation)

MODEL 212 with CODE 443 (Steering wheel heater)

MODEL 212 with CODE 872 (Electrically heated left and right rear seats)

MODEL 212 with CODE 873 (Heated left and right front seats)

Steering wheel heater (with code (443) Steering wheel heater), shown on model 212.0

Fig 1: Overview Of System Components Of Comfort Heating Systems - Steering Wheel Heater

Courtesy of MERCEDES-BENZ USA

Seat heater (with code (873) Left and right front seat heaters or code (401) Front comfort seats, incl. seat heating and seat ventilation), shown on model 212.0

Fig 2: Overview Of System Components Of Comfort Heating Systems - Seat Heater (With Code 873)

Courtesy of MERCEDES-BENZ USA

Seat heater (with code (872) Electrically heated left and right rear seat), shown on model 212.0

Fig 3: Overview Of System Components Of Comfort Heating Systems - Seat Heater (With Code 872)

Courtesy of MERCEDES-BENZ USA

Electric seat ventilation (with code (401) Front comfort seats, incl. seat heating and seat ventilation), shown on model 212.0

Fig 4: Overview Of System Components Of Comfort Heating Systems - Electric Seat Ventilation

Courtesy of MERCEDES-BENZ USA

Component description for front SAM control unit with fuse and relay module	N10/1	GF54.21-P-6070FL
Component description for rear SAM control unit with fuse and relay module	N10/2	GF54.21-P-6030FL
Component description for automatic air conditioning control and operating unit	MODEL 212 with CODE 401 (Front deluxe seats, incl. seat heating and seat ventilation) without CODE 581 (Comfort automatic air conditioning) MODEL 212 with CODE 443 (Steering wheel heater) without CODE 581 (Comfort automatic air conditioning) MODEL 212 with CODE 872 (Electrically heated left and right rear seats) without CODE 581 (Comfort automatic air conditioning) MODEL 212 with CODE 873 (Heated left and right front seats) without CODE 581 (Comfort automatic air conditioning) N22/7	GF83.40-P-3000FLA
	MODEL 212 with CODE 401 (Front deluxe seats, incl. seat heating and seat ventilation) with CODE 581 (Comfort automatic air conditioning) MODEL 212 with CODE 443 (Steering wheel heater) with CODE 581 (Comfort automatic air conditioning) MODEL 212 with CODE 581 (Comfort automatic air conditioning) with CODE 872 (Electrically heated left and right rear seats) MODEL 212 with CODE 581 (Comfort automatic air conditioning) with CODE 873 (Heated left and right front seats) N22/7	GF83.40-P-3000FLB
Rear SIH control unit, component description	MODEL 212 with CODE 872 (Electrically heated left and right rear seats) N25/6	GF91.30-P-5215FL
Steering wheel heater control unit, component description	MODEL 212 up to model year 2014 with CODE 443 (Steering wheel heater) N25/7	GF54.21-P-4172FL
Component description for rear door control unit	N69/3, N69/4	GF72.29-P-6021FL
Upper control panel control unit, component description	N72/1	GF54.21-P-6040FL
Component description for the electronic ignition lock control unit	N73	GF80.57-P-6001FL
Component description for steering column tube module control unit	N80	GF54.21-P-6051FL
Table of contents for function description of comfort heating systems		GF91.30-P-0999FL