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Home >> Mercedes Benz >> 2021 >> C63 AMG 2D Convertible >> Repair and Diagnosis >> Restraints >> Seat Belts >> Seats, Bunks, Restraint Systems -- 205 Chassis (1 Of 3) >> Basic Knowledge >> Overview Of System Components Of Comfort Heating Systems - GF91.30-P-9990RF

Overview Of System Components Of Comfort Heating Systems - GF91.30-P-9990RF

Model 205, 253 

with code 401 (Climatised front seats) 

Model 205, 253 

with code 443 (Heated steering wheel) 

Model 205, 253 

with code 872 (Left and right rear seat heating) 

Model 205, 253 

with code 873 (Left and right driver's seat heating) 

Model 205.4 

with code 403 (Heating in head area) 

Steering wheel heater (with code 443 (Steering wheel heater)), shown on model 205.0 

Fig 1: Steering Wheel Heater Component Location - Model 205 With Code(s) 401, 443, 872, 873, Or Model 205.4 With Code 403 (Shown On Model 205.0 With Code 443)
G14799154Courtesy of MERCEDES-BENZ USA

IMPORTANT Model 205

as of model year 2019

with code 443 (Heated steering wheel)

Model 253

as of model year 2020

with code 443 (Heated steering wheel)

The steering wheel electronics is connected via the steering wheel CAN (CAN LR) to the network architecture of the vehicle.

G14799155Courtesy of MERCEDES-BENZ USA

Front seat heater (SIH) (with code 401 (Seat climate control for driver and front passenger) or with code 873 (Seat heater for driver and front passenger)), shown on model 205.0 

IMPORTANT Model 253 with code 873 (Seat heating for driver and front passenger) or code 401 (Seat climate control for driver and front passenger) and code 547 (Connect 20 Entry (NTG6)) or code 548 (Connect 20 MID (NTG6)) or code 549 (Connect 20 HIGH (NTG6)) The seat heater can also be operated via the voice control system. The voice control system is controlled via the head unit (A26/17).

G14799156Courtesy of MERCEDES-BENZ USA

Rear seat heater (SIH) (with code 872 (Rear seat heater)), shown in model 205.1 

G14799157Courtesy of MERCEDES-BENZ USA

Seat ventilation (with code 401 (Seat climate control for driver and front passenger)), shown on model 205.0 

IMPORTANT Model 253 with code 401 (Seat climate control for driver and front passenger) and code 547 (Connect 20 Entry (NTG6)) or code 548 (Connect 20 MID (NTG6)) or code 549 (Connect 20 HIGH (NTG6)) The seat ventilation can also be operated via the voice control system.

The seat heater can also be operated via the voice control system. The voice control system is controlled via the head unit.

G14799158Courtesy of MERCEDES-BENZ USA

AIRSCARF (with code 403 (AIRSCARF system)), shown on model 205.4 

  Component description for instrument cluster A1 GF54.30-P-6000RF
  Head unit, component description Model 253 with code 873 (Seat heating for driver and front passenger) or code 401 (Seat climate control for driver and front passenger) or code 443 (Steering wheel heater) and code 547 (Connect 20 Entry (NTG6)) or code 548 (Connect 20 MID (NTG6)) or code 549
(Connect 20 HIGH (NTG6))
A26/17
GF82.85-P-3140RFM
  Component description for front SAM control unit N10/6 GF54.21-P-7010RF
  Component description for rear SAM control unit N10/8 GF54.21-P-7030RF
  Climate control control unit, component description N22/1 GF83.40-P-2250RF
  Rear control unit, component description Model 205.4
with code 403 (Heating in head area) N22/6
GF54.21-P-4134RF
  Seat heater control unit, component description Model 205, 253
with code 401 (Climatised front seats)
except code 221 (Electrically adjustable left driver seat)
except code 222 (Electrically adjustable right driver seat)
except code 242 (Front passenger seat, electrically adjustable with memory function)
except code 275 (Memory Package (driver's seat, steering column and mirror))
Model 205, 253
with code 872 (Left and right rear seat heating)
Model 205, 253
with code 873 (Left and right driver's seat heating)
except code 221 (Electrically adjustable left driver seat)
except code 222 (Electrically adjustable right driver seat)
except code 242 (Front passenger seat, electrically adjustable with memory function)
except code 275 (Memory Package (driver's seat, steering column and mirror)) N25/4, N25/5, N25/6, N25/17
GF91.30-P-5214RF 
  Component description for AIRSCARF system control unit Model 205.4
with code 403 (Heating in head area) N25/7
GF91.30-P-2120RF 
  Component description for driver seat control unit Model 205, 253
with code 221 (Electrically adjustable left driver seat)
with code 401 (Climatised front seats)
Model 205, 253
with code 221 (Electrically adjustable left driver seat)
with code 873 (Left and right driver's seat heating)
Model 205, 253
with code 275 (Memory Package (driver's seat, steering column and mirror))
with code 401 (Climatised front seats)
Model 205, 253
with code 275 (Memory Package (driver's seat, steering column and mirror))
with code 873 (Left and right driver's seat heating)
N32/1
GF91.29-P-5231RF 
  Component description for front passenger seat control unit Model 205, 253
with code 222 (Electrically adjustable right driver seat)
with code 401 (Climatised front seats)
Model 205, 253
with code 222 (Electrically adjustable right driver seat)
with code 873 (Left and right driver's seat heating)
Model 205, 253
with code 242 (Front passenger seat, electrically adjustable with memory function)
with code 401 (Climatised front seats)
Model 205, 253
with code 242 (Front passenger seat, electrically adjustable with memory function)
with code 873 (Left and right driver's seat heating) N32/2
GF91.29-P-5241RF 
  Component description for left front door control unit N69/1 GF72.29-P-6001RF
  Component description for right front door control unit N69/2 GF72.29-P-6009RF
  Component description for rear door control unit Model 205.1, 253
with code 872 (Left and right rear seat heating)
N69/3, N69/4
GF72.29-P-6021RF
  Component description for the electronic ignition lock control unit Model 205 up to model year 2019, model 253
up to model year 2020
N73
GF80.57-P-6001RF
    Model 205 as of model year 2019, model 253 (except 253.99) as of model year 2020, model 253.99
N73
GF80.57-P-6001RFM
  Component description for steering column tube module control unit Model 205
up to model year 2019
with code 443 (Heated steering wheel)
Model 253 (except 253.99)
up to model year 2020
with code 443 (Heated steering wheel)
N80
GF54.21-P-6051RF
    Model 205
as of model year 2019
with code 443 (Heated steering wheel)
Model 253 (except 253.99)
as of model year 2020
with code 443 (Heated steering wheel)
Model 253.99
with code 443 (Heated steering wheel) N80
GF54.21-P-6051RFM
  Table of contents for function description of comfort heating systems   GF91.30-P-0999RF