This 1993 Porsche 928 factory service and repair manual is built for the GTS Coupe and its 5.4L V8 (VIN A), so the specifications, torque values, and procedures inside are the ones Porsche published for this exact car, not a generic 928-era approximation.
Engines
- 5.4L V8 (VIN A) Gas
Trims
- GTS Coupe 2-Door
No recalls are on federal record for the 1993 Porsche 928. One complaint has been filed for the year. The factory diagnostic and repair procedures for every system on this car are here regardless.
Whether you're chasing the V8's timing belt interval or working through a full GTS service cycle, this manual keeps every step and spec matched to your specific 1993 928.
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 75 technical service bulletins on file with NHTSA.
MAJOR ENGINE DAMAGE, ENGINE HAD TO BE REPLACED. TWO CYLINDERS BROKEN. DETECTED CAUSE FOR THE ENGINE FAILURE: BAD ASSEMBLY OF THE WATER PUMP WHEN CAR WAS MANUFACTURED IN 1993. EFECT OF THIS BAD WATER P
MAJOR ENGINE DAMAGE, ENGINE HAD TO BE REPLACED. TWO CYLINDERS BROKEN. DETECTED CAUSE FOR THE ENGINE FAILURE: BAD ASSEMBLY OF THE WATER PUMP WHEN CAR WAS MANUFACTURED IN 1993. EFECT OF THIS BAD WATER P
