The chain tensioners have been replaced w new, but I don't know if they are of the latest design. They were purchased from our local Porsche dealer.
Do you know the PN of the new design?
The rattle is still there, and still only at morning startup. Any time during the day there is no rattle.
We have also tried different viscosity oils, from 0W-40 Mobil 1 to 15W-50 Mobil 1. Same noise only at morning startup.
Len