Component description for the intake manifold tumble flap switchover valve - GF07.05-P-6030V

ENGINE 273.961 in MODEL 216, 221 up to Model Year 8 

Shown on ENGINE 272 

Fig 1: Identifying Intake Manifold Tumble Flap Switchover Valve

Courtesy of MERCEDES-BENZ USA

Location 

The variable intake manifold switchover valve is mounted at the front of the variable intake manifold.

Task 

Pressurize tumble flap switchover aneroid capsule with vacuum or admitting air.

Fig 2: Intake Manifold Tumble Flap Switchover Valve De-energized And Actuated Diagram

Courtesy of MERCEDES-BENZ USA

Function 

Voltage is supplied from terminal 87. Coil resistance is approx. 30 The switchover valve is actuated at the ground side by the engine control unit through its own output stage.

A valve plate actuated by the coil armature switches between the atmospheric memory (ventilation via cap/flap??) and the vacuum memory.