This 1986 Porsche 928 factory service and repair manual is built for the S Coupe as Porsche specified it that year, so every procedure and clearance in it applies to your car rather than to a similar-looking 928 from another model year.
Trims
- S Coupe 2-Door
Known issues on the 1986 928. One recall is on federal record for this model year. It covers materials located near the catalytic converter, including automatic transmission fluid lines: an inadequate heat shield above the converter can allow it to overheat, and materials nearby could ignite and cause an underbody fire. No complaints have been filed with NHTSA for the year. The factory diagnostic and repair procedures behind that system are here.
Whether you're inspecting the underbody heat shielding near the catalytic converter or working through a routine service interval, it keeps you on the OEM procedure for your specific 1986 928.
INADEQUATE HEAT SHIELD ABOVE CATALYTIC CONVERTER COULD OVERHEAT.
MATERIALS NEAR CATALYTIC CONVERTER, INCLUDING LINES FORAUTOMATIC TRANSMISSION FLUID, COULD IGNITE AN
REPLACE HEAT SHIELD FOR CATALYTIC CONVERTER WITH A LARGER, IMPROVED HEAT SHIELD.
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 72 technical service bulletins on file with NHTSA.
