Imi,
Just to point out that your car is under the Porsche Extended Warranty plan which is nowhere near as extensive as the full Factory Warranty. Your Porsche Centre is dealing with a third party insurer who presumably is refusing to pay to replace the units (you need to read carefully the Extended Warranty T&Cs to understand what is and is not covered).
Your Centre will therefore have to cover the full replacement cost (unless they can get you cough-up part of the cost) and if they can be bothered, maybe return the units to the manufacturer seeking reimbursement from them.
Jeff
Just to point out that your car is under the Porsche Extended Warranty plan which is nowhere near as extensive as the full Factory Warranty. Your Porsche Centre is dealing with a third party insurer who presumably is refusing to pay to replace the units (you need to read carefully the Extended Warranty T&Cs to understand what is and is not covered).
Your Centre will therefore have to cover the full replacement cost (unless they can get you cough-up part of the cost) and if they can be bothered, maybe return the units to the manufacturer seeking reimbursement from them.
Jeff