So if someone had the timing chain off and didn’t set the intake cam advance correctly to the retard position it would cause this noise? So sounds like I need to pull the timing cover, tensioner, loosen the chain, set all to TDC with dowels on both cams lining up with the machined surface, turn advance section of intake cam to the right, and reinstall the chain with slack towards the tensioner side and then reinstall the tensioner. Is this all correct?

Also, for resealing the timing cover, I need the U shaped green gasket and some copper Permatex for the gasket ends. I assume I will also need the O-ring for the cover as well, correct?

Finally, I am unsure how to reinstall the tensioner, but I am sure there are directions as it doesn't sound hard. Any advice is appreciated.

Is there anything else that could be causing this noise? I thought about pulling the solenoid, starting the car and pulling the adjuster shaft forward on the cam to see if the noise is present. But, I’m sure it’s not the solenoid making the noise as it’s new from Mercedes and the old one did the same thing.