Throttle valve actuator, component description - GF30.20-P-2020P
WARNING: This page does not describe the selected car, but rather 28 other vehicles, including the 2012 Mercedes-Benz GL550, 2012 Mercedes-Benz GL450, 2011 Mercedes-Benz ML63, 2011 Mercedes-Benz ML550, and 2011 Mercedes-Benz ML350. However, it is still accessible from the selected car via links, so may be relevant.
ENGINE 642 in MODEL 164.1 /8, 203.0 /2, 209.3 /4, 211.0 /2 /6, 219.3, 221.0 /1, 251.0 /1
ENGINE 642.970 in MODEL 463.303 /340 /341
Location
The throttle valve actuator is located on the engine at the right front.
Task
The throttle valve actuator regulates the fresh air quantity and mixes the recirculated exhaust with fresh air.
Function
The throttle valve actuator is actuated by the CDI control unit (N3/9) over a pulse width modulation signal and controls the fresh air quantity via the installed throttle valve.
Through connection of the exhaust gas recirculation with the mixing throttle, the suctioned fresh air is mixed with the recirculated exhaust.