PSD locking system light due to wear in the multi-disc clutch on Porsche 928

Due to wear in the differential multi-disc clutch, the PSD (Porsche Slip Differential) locking system light may illuminate. The independent hydraulic fluid supply for the PSD needs to be maintained properly, including the filling/replacement of fluid before problems develop.
RepairPal Verified
Average mileage: (–)
5 model years affected: 1990, 1991, 1993, 1994, more1995
5 people reported this problem
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews