E 320 Wagon (211265) V6-32L Automatic Transmission Shift Solenoid
Component Identification
The brake control solenoid valve B3 (VGS) (Y3/8y7) is actuated by the fully integrated transmission control unit (VGS) (Y3/8n4) and influences the
position of the regulating valve B3. The pressure in the multidisk brake B3 depends on the regulating valve position and therefore on the geometry of
the regulating valve B3
The B3 brake control solenoid valve (VGS) (Y3/8y7) has a rising characteristic. This means that the oil pressure applied in the B3 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 B3 brake control solenoid valve (VGS) (Y3/8y7) thus supplies no pressure.