I just replace them with second hand items, as I have a few here. Do you know which side is faulty? If you unplug the blue plug on the actuator at the front of the engine, one at a time, you will easily find which side is noisy, that will tell you which actuator has a problem. This will throw a CEL though which will need to be cleared afterwards.
It could just be that you are running too thin an oil, as the cams are affected by viscosity. They should self learn to some extent, but the Consult 3 unit can speed that process up by activating the camshaft re-learn procedure. This may stop the noise if the actuator is still ok internally, so I would get this done beforehand.