1990 Audi 90 Service & Repair Manual

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The service and repair manual for the 1990 Audi 90 — 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 year1990
Engines
2.3L I5 — 141 cu in, SOHC
TrimsBase Sedan 4-Door
Other 1990 90 variants90 Quattro →
Federal record3 recalls · 5 complaints · 0 technical service bulletins (refreshed 2026-08-21)

02 / InsideSample pages from the 1990 90 manual

1990 Audi 90 service manual page 11990 Audi 90 service manual page 21990 Audi 90 service manual page 31990 Audi 90 service manual page 4

03 / ContentsSections in the manual

  • Quick Lookups 68
  • General Information 1,426
  • Accessories & Equipment 95
  • Heating, Ventilation & A/C (HVAC) 70
  • Brakes 130
  • Maintenance 92
  • Restraints 34
  • Electrical 139
  • Steering 64
  • Engine Mechanical 88
  • Suspension 33
  • Engine Performance 399
  • Transmission 60
  • Booster-To-Bracket 18
  • Girling 26
  • Teves 18
  • Front 92
  • Rear 48
  • Master Cylinder-To-Booster 18

04 / Known issuesRecalls on federal record for the 1990 90

  1. Power Train — axle assembly · 93V006000
    In the event of failure, the vehicle's drive wheels couldlose power. in extreme circumstances, the f.
  2. Steering — column locking › anti-theft device · 90V070000
    Bolt breakage would cause steering wheel to remain locked even after the driver turns the ignition k.
  3. Air Bags — frontal › sensor/control module-inactive · 97V172000
    In the event the sensor should malfunction, the air bag restraint system can inadvertently deploy.

Owners have filed 5 complaints and Audi has issued 0 technical service bulletins for the 1990 90. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.

FAQQuestions about the 1990 90 manual

Is this manual specific to the 1990 90?

Yes. It is the OEM manual matched to the 1990 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 1990 90 problems does it help with?

3 recalls are on federal record for the 1990 90, covering power train, steering, air bags. 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 1990 90 wiring diagrams?

Yes — the complete wiring diagrams for the 1990 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.

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