LEMON Manuals: Even more car manuals for everyone
Home >> Mercedes Benz >> 2007 >> E320 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission -- Basic Knowledge >> Basic Knowledge >> Control solenoid valve, task - GF27.19-P-5111-01C

Control solenoid valve, task - GF27.19-P-5111-01C

Transmission 722.9 in model 171.4, 203, 209, 211, 215, 219, 220, 230, 463.303/340/341 K2 clutch control solenoid valve 

Fig 1: Identifying Control Solenoid Valve
G07287846Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

The clutch control solenoid valve K2 (VGS) (Y3/8y3) is actuated by the fully integrated transmission control unit (VGS) (Y3/8n4) and influences the position of the regulating valve K2. The pressure in the multidisk clutch K2 depends on the regulating valve position and therefore on the geometry of the regulating valve K2

The K2 clutch control solenoid valve (VGS) (Y3/8y3) has a lowering characteristic. This means that the oil pressure applied in the regulating valve K2 reduces as the actuation current increases. In limp-home mode of the fully integrated transmission control (VGS) all the control solenoid valves are de-energized. The K2 clutch control solenoid valve (VGS) (Y3/8y3) thus supplies maximum pressure.