1986 Porsche 928 Service and Repair Manual

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.

Engines covered

• 5.0L V8 — DOHC, naturally aspirated, gasoline

Body styles covered

• 2-door coupe

Trims covered

• S

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. 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.