Charge air cooling circulation pump, location/task/function - GF09.41-P-3102M

ENGINE 275.953 in MODEL 216, 221 up to Model Year 08/AEJ 07

ENGINE 275.982 in MODEL 216, 221 up to Model Year 08/AEJ 07

Fig 1: Identifying Charge Air Cooler Circulation Pump And Coolant Hose Connections

Courtesy of MERCEDES-BENZ USA

Charge air cooling circulation pump, arrangement	Model 215, 220	GF09.41-P-3102-01K
	Model 216, 221	GF09.41-P-3102-01MS
	Model 230	GF09.41-P-3102-01RA
	Model 240	GF09.41-P-3102-01M
Charge air cooling circulation pump task	Keep the charge air temperature below 70 °C by means of coolant circulation.
Charge air cooling circulation pump function	The circulation pump is actuated via a relay by the engine control unit. Switch on: Charge air temperature above approx. 47 °C Switch off: Charge air temperature below approx. 35 °C.