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If the engine is off you will hear the tail come up which is good because you'll know when to let off the switch. Then just walk around and clean. If you hear it with the engine running then your ears are better than mine
Mine is also making that whining noise even when the engine is at idle speed so I am also interrested in a working solution to quiet down this mechanism...
"Manually" lift it and then clean and grease the two actuators with silicon or something like that.
I did that 4 years ago and it's been silent ever since.