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

Submitted by Vehicle Owner · May 29, 2025
Published by RepairPal

Problem overview

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.

5 people reported this problem
0 comments
Schedule Repair

Search for another problem

RepairPal Car Genius

Ask our experts about your Porsche.

RepairPal Car Genius™ is a free resource for vehicle owners seeking advice on maintenance, auto repair, shop inquiries, estimates, and finding a trustworthy repair shop in your area.

 Auto Repair Expert Auto Repair Expert

Call us at 877-913-1554

Available 9am – 6pm ET Monday through Friday

Call Our Experts