The service and repair manual for the 1988 Audi 90 Quattro — the 2.3L I5 engine, 1 trim. Matched to this exact model year, so the specifications and sequences are the ones Audi published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 1988 |
|---|---|
| Engines | 2.3L I5 — 141 cu in, SOHC |
| Trims | Base Sedan 4-Door |
| Other 1988 90 Quattro variants | 90 → |
| Federal record | 1 recall · 4 complaints · 0 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1988 90 Quattro manual
03 / ContentsSections in the manual
- Quick Lookups 68
- General Information 1,391
- Accessories & Equipment 27
- Heating, Ventilation & A/C (HVAC) 48
- Brakes 149
- Maintenance 92
- Steering 55
- Electrical 117
- Suspension 36
- Engine Mechanical 193
- Transmission 66
- Engine Performance 299
- Steering Wheel Retaining Nut 29
04 / Known issuesRecalls on federal record for the 1988 90 Quattro
- Power Train — axle assembly · 93V006000In the event of failure, the vehicle's drive wheels couldlose power. in extreme circumstances, the f.
Owners have filed 4 complaints and Audi has issued 0 technical service bulletins for the 1988 90 Quattro. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1988 90 Quattro manual
Is this manual specific to the 1988 90 Quattro?
Yes. It is the OEM manual matched to the 1988 model year, covering the 2.3L I5 across the Base Sedan 4-Door trims. Specifications and procedure sequences are the ones Audi published for this year.
What 1988 90 Quattro problems does it help with?
1 recall is on federal record for the 1988 90 Quattro, covering power train. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Audi dealers.
Does it include 1988 90 Quattro wiring diagrams?
Yes — the complete wiring diagrams for the 1988 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $40.99 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 90 Quattro years and 1988 Audi models
1994 90 Quattro · 1993 90 Quattro · 1992 90 Quattro · 1991 90 Quattro · 1990 90 Quattro · 1989 90 Quattro · all 8 years
1988 Audi 5000 · 1988 Audi 5000 Quattro · 1988 Audi 80 · 1988 Audi 80 Quattro · 1988 Audi 90 · every 1988 model