GF27.19-P-5111-01F

Control solenoid valve, task

Transmission 722.9 in models 171.4, 203, 209, 211, 215, 219, 220, 230 Brake control solenoid valve B2

Y3/8 Electric control unit (VGS) Y3/8y6 B2 brake control solenoid valve (VGS)
		P27.60-2471-82

The brake control solenoid valve B2(VGS) (Y3/8y6) is actuated by the fully integrated transmission control (VGS) control unit (Y3/8n4) and influences the position of the regulating valve B2/BR. The pressure in the multi-disk brake B2 and pressure in the multi-disk brake BR depend on the regulating valve position and thus on the geometry of the regulating valve B2/BR.

The brake control solenoid valve B2(VGS) (Y3/8y6) has a rising characteristic. This means that the oil pressure applied to the regulating valve B2/BR 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 brake control solenoid valve B2 (VGS) (Y3/8y6) therefore does not supply any pressure.