2004 Audi A6 Quattro Service & Repair Manual

← 2003All A6 Quattro years2005 →

The service and repair manual for the 2004 Audi A6 Quattro — 3.0L V6 and 2.7L V6 and 4.2L V8 and 3.0L V6 engines, 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
3.0L V6 — 180 cu in, DOHC
2.7L V6 — 163 cu in, DOHC, turbocharged
4.2L V8 — 255 cu in, DOHC
3.0L V6 — 182 cu in, DOHC
TrimsS Line Sedan 4-Door · Base Sedan 4-Door · Avant Wagon 4-Door
Other 2004 A6 Quattro variantsA6 →
Federal record1 recall · 44 complaints · 121 technical service bulletins (refreshed 2026-08-21)

02 / InsideSample pages from the 2004 A6 Quattro manual

2004 Audi A6 Quattro service manual page 12004 Audi A6 Quattro service manual page 22004 Audi A6 Quattro service manual page 32004 Audi A6 Quattro service manual page 42004 Audi A6 Quattro service manual page 52004 Audi A6 Quattro service manual page 6

03 / ContentsSections in the manual

  • Quick Lookups 100
  • General Information 1,417
  • Accessories & Equipment 4,962
  • Heating, Ventilation & A/C (HVAC) 334
  • Body & Frame 1,298
  • Maintenance 157
  • Brakes 373
  • Restraints 93
  • Drivelines & Axles 17
  • Steering 297
  • Electrical 425
  • Suspension 612
  • Engine Mechanical 1,183
  • Transmission 201
  • Engine Performance 2,797
  • Brake Line (Front Wheels) 11
  • Master Cylinder-To-Booster (Self-Locking 36
  • Booster-To-Firewall Nut (Torx Bolt) 18
  • Wheel Lug Bolts 90
  • Carrier-To-Wheel Bearing Housing Bolts 140

04 / Known issuesRecalls on federal record for the 2004 A6 Quattro

  1. Electrical System · 04V133000
    A fire could originate in the left dashboard area.

Owners have filed 44 complaints and Audi has issued 121 technical service bulletins for the 2004 A6 Quattro. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.

FAQQuestions about the 2004 A6 Quattro manual

Is this manual specific to the 2004 A6 Quattro?

Yes. It is the OEM manual matched to the 2004 model year, covering the 3.0L V6 and 2.7L V6 and 4.2L V8 and 3.0L V6 across the S Line Sedan 4-Door, Base Sedan 4-Door, Avant Wagon 4-Door trims. Specifications and procedure sequences are the ones Audi published for this year.

What 2004 A6 Quattro problems does it help with?

1 recall is on federal record for the 2004 A6 Quattro, covering electrical system. 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 A6 Quattro 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 A6 Quattro years and 2004 Audi models

2010 A6 Quattro · 2009 A6 Quattro · 2008 A6 Quattro · 2007 A6 Quattro · 2006 A6 Quattro · 2005 A6 Quattro · 2003 A6 Quattro · 2002 A6 Quattro · 2001 A6 Quattro · 2000 A6 Quattro · 1999 A6 Quattro · 1998 A6 Quattro · all 30 years

2004 Audi A3 · 2004 Audi A3 Quattro · 2004 Audi A4 · 2004 Audi A4 Quattro · 2004 Audi A6 · 2004 Audi A8 · 2004 Audi A8 Quattro · 2004 Audi Allroad Quattro · 2004 Audi RS4 · 2004 Audi RS6 · 2004 Audi S3 · 2004 Audi S4 · every 2004 model