The service and repair manual for the 1985 Porsche 928 — the 5.0L V8 engine, 1 trim. Matched to this exact model year, so the specifications and sequences are the ones Porsche published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 1985 |
|---|---|
| Engines | 5.0L V8 — 302 cu in, DOHC |
| Trims | S Coupe 2-Door |
| Federal record | 1 recall · 0 complaints · 72 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1985 928 manual
03 / ContentsSections in the manual
- Quick Lookups 68
- General Information 1,378
- Accessories & Equipment 27
- Brakes 208
- Maintenance 65
- Electrical 110
- Steering 37
- Engine Mechanical 112
- Suspension 46
- Engine Performance 280
- Transmission 67
- Camshaft Housing Mounting Bolt 14
- Camshaft Pulley Mounting Bolt 33
04 / Known issuesRecalls on federal record for the 1985 928
- Engine And Engine Cooling — engine · 85V084000The engine carrier has a faulty weld to the support bracket eyes.
Owners have filed 0 complaints and Porsche has issued 72 technical service bulletins for the 1985 928. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1985 928 manual
Is this manual specific to the 1985 928?
Yes. It is the OEM manual matched to the 1985 model year, covering the 5.0L V8 across the S Coupe 2-Door trims. Specifications and procedure sequences are the ones Porsche published for this year.
What 1985 928 problems does it help with?
1 recall is on federal record for the 1985 928, covering engine and engine cooling. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Porsche dealers.
Does it include 1985 928 wiring diagrams?
Yes — the complete wiring diagrams for the 1985 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $29.99 once and the manual is yours. It is a digital manual — nothing ships; access details arrive by email after checkout and it works on any device.
RelatedOther 928 years and 1985 Porsche models
1991 928 · 1990 928 · 1989 928 · 1988 928 · 1987 928 · 1986 928 · 1984 928 · 1983 928 · 1982 928 · all 13 years
1985 Porsche 911 · 1985 Porsche 924 · 1985 Porsche 944 · every 1985 model