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Home >> Mercedes Benz >> 2006 >> G500 >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> HVAC Basic Knowledge -- G-Class (463) - 2 Of 2 >> Basic Knowledge >> Heat exchanger, location/task/design - GF83.70-P-4001A

Heat exchanger, location/task/design - GF83.70-P-4001A

MODELS 168 with ENGINE 668.940 with heater booster 

MODELS 202 with ENGINE 611.960 with heater booster 

MODELS 210 with heater booster 

MODELS 220 with ENGINE 613.960 with heater booster 

MODELS 220 with ENGINE 628.960 with heater booster 

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

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

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

MODELS 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 Heat Exchanger, Burner Housing And Stationary Heater Control Unit
G07740642Courtesy of MERCEDES-BENZ USA
  Heat exchanger location The heat exchanger (1) is a component of the STH heater unit (models 129, 203, 209.3, 215, 230) or the STH or ZUH heater unit (models 168, 202, 220) Together with the STH control unit (A6n1) or STH or ZUH control unit (A6n1) it forms an inseparable unit.  
Model 210 up to 31.08.96 with engine 602.982 with heater booster
Model 210 with CODE (228) Stationary heater Model 463 as from 01.06.94 with code (H12) auxiliary heater Webasto Tele Thermo Top S
GF83.70-P-4001-01A 
  Heat exchanger, task The heat exchanger (1) guarantees a rapid and optimum exchange of heat between the combustion heat and the coolant.  
  Heat exchanger structure The heat exchanger (1) is comprised of a double-walled housing, the internal area of which is increased in size via ribs.