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Home >> Mercedes Benz >> 2008 >> C350 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - Basic Knowledge - C63/C350 (204) >> Basic Knowledge >> Working pressure, function - GF27.60-P-3013CWQ

Working pressure, function - GF27.60-P-3013CWQ

TRANSMISSION 722.9 in MODEL 204.0 up to Model Year 8 

The oil pressure produced by the oil pump is converted into working pressure by the working pressure regulating valve. The level of working pressure depends on the position of the regulating valve and therefore on its geometry.

The position of the working pressure regulating valve is influenced by the working pressure control solenoid valve (Y3/8y1) depending on load and gear. All other pressures required for the transmission control are derived from the working pressure.

  Control solenoid valve component description Working pressure control solenoid valve GF27.19-P-5147CWA 
    Clutch control solenoid valve K1 GF27.19-P-5147CWB 
    Clutch control solenoid valve K2 GF27.19-P-5147CWC 
    Clutch control solenoid valve K3 GF27.19-P-5147CWD 
    Multidisk brake control solenoid valve B1 GF27.19-P-5147CWE 
    Multidisk brake control solenoid valve B2 GF27.19-P-5147CWF 
    Multidisk brake control solenoid valve B3 GF27.19-P-5147CWG 
    Torque converter lockup clutch control solenoid valve GF27.19-P-5147CWH 
  VGS control unit, component description   GF27.19-P-4016CWQ 
  Oil pump component description   GF27.57-P-1010GZ