1998 Audi A8 Service & Repair Manual

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The service and repair manual for the 1998 Audi A8 — the 3.7L V8 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 year1998
Engines
3.7L V8 — 226 cu in, DOHC
TrimsBase Sedan 4-Door
Other 1998 A8 variantsA8 Quattro →
Federal record2 recalls · 4 complaints · 42 technical service bulletins (refreshed 2026-08-21)

02 / InsideSample pages from the 1998 A8 manual

1998 Audi A8 service manual page 11998 Audi A8 service manual page 21998 Audi A8 service manual page 31998 Audi A8 service manual page 41998 Audi A8 service manual page 51998 Audi A8 service manual page 6

03 / ContentsSections in the manual

  • Quick Lookups 96
  • Engine Performance 675
  • Accessories & Equipment 3,006
  • General Information 1,546
  • Body & Frame 1,083
  • Heating, Ventilation & A/C (HVAC) 257
  • Brakes 453
  • Maintenance 142
  • Drivelines & Axles 13
  • Steering 212
  • Electrical 370
  • Suspension 295
  • Engine Mechanical 269
  • Transmission 85

04 / Known issuesRecalls on federal record for the 1998 A8

  1. Power Train — automatic transmission · 08V397000
    This could allow the vehicle to roll, causing a crash without warning.
  2. Air Bags — frontal › driver side › inflator module · 22V471000
    The inflator could explode during air bag deployment, resulting in metal fragments striking the driv.

Owners have filed 4 complaints and Audi has issued 42 technical service bulletins for the 1998 A8. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.

FAQQuestions about the 1998 A8 manual

Is this manual specific to the 1998 A8?

Yes. It is the OEM manual matched to the 1998 model year, covering the 3.7L V8 across the Base Sedan 4-Door trims. Specifications and procedure sequences are the ones Audi published for this year.

What 1998 A8 problems does it help with?

2 recalls are on federal record for the 1998 A8, covering power train, 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 1998 A8 wiring diagrams?

Yes — the complete wiring diagrams for the 1998 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 A8 years and 1998 Audi models

2000 A8 · 1999 A8 · 1997 A8 · all 5 years

1998 Audi A3 · 1998 Audi A4 · 1998 Audi A4 Quattro · 1998 Audi A6 · 1998 Audi A6 Quattro · 1998 Audi A8 Quattro · 1998 Audi Cabriolet · 1998 Audi S4 · 1998 Audi S6 · every 1998 model