E 500 (211.070) V8-5.0L (113.967) (2004)
Torque Converter Clutch Solenoid: Description and Operation
GF27.19-P-5111-01H Control solenoid valve, task
- TRANSMISSION 722.9
- Control solenoid valve lock-up clutch
Component Identification
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.