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Home >> Mercedes Benz >> 2006 >> C230 Automatic >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control -- Basic Knowledge -- 203 Chassis >> Basic Knowledge >> Stationary heater/heater booster control unit, location/task - GF83.70-P-4002A

Stationary heater/heater booster control unit, location/task - GF83.70-P-4002A

MODEL 168 with ENGINE 668.940 with heater booster 

MODEL 202 with ENGINE 611.960 with heater booster 

MODEL 210 with heater booster 

MODEL 220 with ENGINE 613.960 with heater booster 

MODEL 220 with ENGINE 628.960 with heater booster 

MODEL 129 as of 1.6.97 with CODE (228) Stationary heater 

MODEL 203 up to 23.4.04, models 210, 215, 220, 230 with CODE (228) Stationary heater 

MODEL 463 as of 1.6.94 with CODE (H12) Auxiliary heater Webasto Tele Thermo Top S 

MODEL 209.3 up to 31.5.04 with CODE (228) Stationary heater 

Models 129, 168, 202, 203, 209.3, 215, 220, 230 

Fig 1: Identifying Stationary Heater/Heater Booster Control Unit - Model 203 Up To 23.4.04, Models 210, 215, 220, 230 With Code (228) Stationary Heater
G04737999
  Stationary heater/heater booster control unit position The STH control unit (A6n1) or STH or HB control unit (A6n1) is located at the STH heater unit in models 129, 203, 230, 209.3 or the STH or HB heater unit in models 168, 202, 220. It forms an inseparable unit together with the heat exchanger (1).  
    Model 210 up to 31.08.96 with engine 602.982 with heater booster GF83.70-P-4002-01A
    Model 210 with code (228) Stationary heater
Model 463 as of 01.06.94 with code (H12)
Webasto Tele Thermo Top S auxiliary heater
 
  Stationary heater/heater booster control unit, task   GF83.70-P-4002-02A