Control Pressure Cable Vacuum Element

NOTE: Not all vehicles are equipped with a control pressure cable vacuum element. Only vehicles with dual shifting modes for transmission may have this option.

Ensure control pressure cable is properly adjusted. See CONTROL PRESSURE CABLE . Raise and support vehicle. Disconnect vacuum hose from control pressure cable vacuum element. See Fig 1 .
Connect a vacuum supply to vacuum element. Pull control pressure cable up to full load stop. Measure how far piston sticks out of vacuum element (distance "A"). See Fig 2 . See VACUUM ELEMENT PISTON PROTRUSION table. If vacuum element piston protrusion is not to specification, turn adjustment screw on control pressure cable vacuum element. See Fig 1 .

Fig 1: Connecting Vacuum Hose To Control Pressure Cable Vacuum Element

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

VACUUM ELEMENT PISTON PROTRUSION

Application

In. (mm)

6-Cyl. Engine W/ 722.4 Transmission ⁽¹⁾

.24 (6)

⁽¹⁾	See IDENTIFICATION for applications.

Fig 2: Checking Vacuum Element Piston Protrusion

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.