2004 Audi S4 Service & Repair Manual

← 2002All S4 years2005 →

The service and repair manual for the 2004 Audi S4 — the 4.2L V8 engine, 3 trims. 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 year2004
Engines
4.2L V8 — 254 cu in, DOHC
TrimsCabriolet Convertible 2-Door · Base Sedan 4-Door · Avant Wagon 4-Door
Federal record1 recall · 37 complaints · 97 technical service bulletins (refreshed 2026-08-21)

02 / InsideSample pages from the 2004 S4 manual

2004 Audi S4 service manual page 12004 Audi S4 service manual page 22004 Audi S4 service manual page 32004 Audi S4 service manual page 42004 Audi S4 service manual page 52004 Audi S4 service manual page 6

03 / ContentsSections in the manual

  • Quick Lookups 86
  • General Information 1,500
  • Accessories & Equipment 10,716
  • Heating, Ventilation & A/C (HVAC) 734
  • Body & Frame 4,615
  • Maintenance 313
  • Brakes 470
  • Restraints 1,205
  • Drivelines & Axles 1,275
  • Steering 1,006
  • Electrical 3,359
  • Suspension 1,441
  • Engine Mechanical 2,357
  • Transmission 531
  • Engine Performance 3,252
  • Ball Head-To-Brake Servo 22
  • Brake Hose-To-Caliper Banjo Bolt 33
  • Brake Line-To-Caliper 11
  • Front 18
  • Lower & Upper Bolt 55

04 / Known issuesRecalls on federal record for the 2004 S4

  1. Exterior Lighting — headlights · 05V096000
    This condition could affect a driver's field of view, increasing the risk of a crash.

Owners have filed 37 complaints and Audi has issued 97 technical service bulletins for the 2004 S4. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.

FAQQuestions about the 2004 S4 manual

Is this manual specific to the 2004 S4?

Yes. It is the OEM manual matched to the 2004 model year, covering the 4.2L V8 across the Cabriolet Convertible 2-Door, Base Sedan 4-Door, Avant Wagon 4-Door trims. Specifications and procedure sequences are the ones Audi published for this year.

What 2004 S4 problems does it help with?

1 recall is on federal record for the 2004 S4, covering exterior lighting. 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 2004 S4 wiring diagrams?

Yes — the complete wiring diagrams for the 2004 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 S4 years and 2004 Audi models

2010 S4 · 2009 S4 · 2008 S4 · 2007 S4 · 2006 S4 · 2005 S4 · 2002 S4 · 2001 S4 · 2000 S4 · all 27 years

2004 Audi A3 · 2004 Audi A3 Quattro · 2004 Audi A4 · 2004 Audi A4 Quattro · 2004 Audi A6 · 2004 Audi A6 Quattro · 2004 Audi A8 · 2004 Audi A8 Quattro · 2004 Audi Allroad Quattro · 2004 Audi RS4 · 2004 Audi RS6 · 2004 Audi S3 · every 2004 model