Control solenoid valve, task - GF27.19-P-5111-01H
Transmission 722.9 in model 171.4, 203, 209, 211, 215, 219, 220, 230, 463.303/340/341 torque converter lockup clutch control solenoid valve
The torque converter lockup clutch control solenoid valve (VGS) (Y3/8y8) is actuated by the fully integrated transmission control (VGS) control unit (Y3/8n4) and influences the position of the torque converter lockup clutch regulating valve. The clutch pressure in the torque converter lockup clutch depends on the regulating valve position and thus on the geometry of the torque converter lockup clutch regulating valve.
The torque converter lockup clutch control solenoid valve (VGS) (Y3/8y8) has a rising characteristic. This means that the oil pressure applied in the torque converter lockup clutch regulating valve increases 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 torque converter lockup clutch control solenoid valve (VGS) (Y3/8y8) thus supplies no pressure.