2008 Audi A8 Quattro Service & Repair Manual

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The service and repair manual for the 2008 Audi A8 Quattro — 4.2L V8 and 4.2L V8 and 6.0L W12 engines, 4 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 year2008
Engines
4.2L V8 — 255 cu in, DOHC
4.2L V8 — 254 cu in, DOHC
6.0L W12 — 366 cu in, DOHC
TrimsL Plus Sedan 4-Door · Base Sedan 4-Door · L Sedan 4-Door · Plus Sedan 4-Door
Federal record1 recall · 8 complaints · 312 technical service bulletins (refreshed 2026-08-21)

02 / InsideSample pages from the 2008 A8 Quattro manual

2008 Audi A8 Quattro service manual page 12008 Audi A8 Quattro service manual page 22008 Audi A8 Quattro service manual page 32008 Audi A8 Quattro service manual page 42008 Audi A8 Quattro service manual page 52008 Audi A8 Quattro service manual page 6

03 / ContentsSections in the manual

  • Quick Lookups 104
  • General Information 1,407
  • Accessories & Equipment 6,569
  • Heating, Ventilation & A/C (HVAC) 734
  • Body & Frame 3,042
  • Maintenance 131
  • Brakes 240
  • Restraints 762
  • Drivelines & Axles 531
  • Steering 444
  • Electrical 2,435
  • Suspension 714
  • Engine Mechanical 1,530
  • Transmission 74
  • Engine Performance 2,154

04 / Known issuesRecalls on federal record for the 2008 A8 Quattro

  1. Visibility — sun/moon roof assembly · 16V415000
    If the glass detaches from the sunroof frame it could be come a road hazard, increasing the risk of a crash.

Owners have filed 8 complaints and Audi has issued 312 technical service bulletins for the 2008 A8 Quattro. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.

FAQQuestions about the 2008 A8 Quattro manual

Is this manual specific to the 2008 A8 Quattro?

Yes. It is the OEM manual matched to the 2008 model year, covering the 4.2L V8 and 4.2L V8 and 6.0L W12 across the L Plus Sedan 4-Door, Base Sedan 4-Door, L Sedan 4-Door, Plus Sedan 4-Door trims. Specifications and procedure sequences are the ones Audi published for this year.

What 2008 A8 Quattro problems does it help with?

1 recall is on federal record for the 2008 A8 Quattro, covering visibility. 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 2008 A8 Quattro wiring diagrams?

Yes — the complete wiring diagrams for the 2008 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 Quattro years and 2008 Audi models

2014 A8 Quattro · 2013 A8 Quattro · 2012 A8 Quattro · 2011 A8 Quattro · 2010 A8 Quattro · 2009 A8 Quattro · 2007 A8 Quattro · 2006 A8 Quattro · 2005 A8 Quattro · 2004 A8 Quattro · 2003 A8 Quattro · 2002 A8 Quattro · all 28 years

2008 Audi A3 · 2008 Audi A3 Quattro · 2008 Audi A4 · 2008 Audi A4 Quattro · 2008 Audi A5 · 2008 Audi A5 Quattro · 2008 Audi A6 · 2008 Audi A6 Quattro · 2008 Audi A8 · 2008 Audi Q7 · 2008 Audi R8 · 2008 Audi RS4 · every 2008 model