Removing pressure servo

Remove:

Boost pressure control (BPC) valve spindle lock pin
Turbocharger (TC) control valve hose
Fresh air hose from turbocharger (TC) and mass air flow (MAF) sensor and move to one side.

NOTE:

Remove the following in the order specified.

Fig 1: Rear Pressure Servo Screw & Front Pressure Servo Screw

Courtesy of VOLVO CARS OF NORTH AMERICA.