This 1989 Porsche 928 factory service and repair manual covers the S4 Coupe trim for this model year.
Trims
- S4 Coupe 2-Door
No recalls are on federal record for the 1989 Porsche 928, and no complaints are logged for the year either.
With a clean federal record, this manual is the reference for staying ahead of wear on the 928's V8, transaxle, and suspension before anything becomes a documented problem.
Information for PIWIS tester update 42.300.050 & .052
Instructions on manufactures certificate for approved Porsche A40 engine oils
Instructions on manufacturers certificate for approved C20 engine oils
Instructions on manufactures certificate for approved Porsche C30 engine oils
Information for PIWIS tester update 42.300.035
Information for PIWIS tester update 42.300.040 & .041
Information for PIWIS tester update 42.300.030 - .032
Parts information for parts withdrawal involving the glass roof - 9J0877069EY and 9J0877069DY
Showing the 8 most recent of 76 technical service bulletins on file with NHTSA.
