Electrically controlled valve in the engine bearing?

Hello.

had read in the diagram and in the guide that there are any solenoid valves for the right and left motor bearings. One of them also clicked on me with the actuator diagnosis, but the other did not.

Can anyone tell me what they are for (vibration reduction?), how it works, what output sizes are being controlled, and how to check the correct function?

Greetings,
Martin W.