The service and repair manual for the 2003 Audi A4 — 1.8L I4 and 3.0L V6 engines, 6 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 year | 2003 |
|---|---|
| Engines | 1.8L I4 — 109 cu in, DOHC, turbocharged 3.0L V6 — 182 cu in, DOHC |
| Trims | Cabriolet Convertible 2-Door · Base Sedan 4-Door · Confort Sedan 4-Door · Vangard Sedan 4-Door · Cabrio Convertible 2-Door · Luxury Sedan 4-Door |
| Other 2003 A4 variants | A4 Quattro → |
| Federal record | 2 recalls · 282 complaints · 139 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2003 A4 manual
03 / ContentsSections in the manual
- Quick Lookups 99
- General Information 1,679
- Accessories & Equipment 10,716
- Heating, Ventilation & A/C (HVAC) 734
- Body & Frame 4,645
- Maintenance 313
- Brakes 470
- Restraints 1,205
- Drivelines & Axles 1,049
- Steering 1,006
- Electrical 3,371
- Suspension 1,441
- Engine Mechanical 3,145
- Transmission 317
- Engine Performance 5,306
- 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 2003 A4
- Fuel System, Gasoline — delivery › fuel pump · 06V017000If fuel flow to the engine is interrupted, the vehicle could stall without warning and thus present.
- Exterior Lighting — headlights · 05V096000This condition could affect a driver's field of view, increasing the risk of a crash.
Owners have filed 282 complaints and Audi has issued 139 technical service bulletins for the 2003 A4. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2003 A4 manual
Is this manual specific to the 2003 A4?
Yes. It is the OEM manual matched to the 2003 model year, covering the 1.8L I4 and 3.0L V6 across the Cabriolet Convertible 2-Door, Base Sedan 4-Door, Confort Sedan 4-Door, Vangard Sedan 4-Door, Cabrio Convertible 2-Door, Luxury Sedan 4-Door trims. Specifications and procedure sequences are the ones Audi published for this year.
What 2003 A4 problems does it help with?
2 recalls are on federal record for the 2003 A4, covering fuel system, gasoline, 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 2003 A4 wiring diagrams?
Yes — the complete wiring diagrams for the 2003 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 A4 years and 2003 Audi models
2009 A4 · 2008 A4 · 2007 A4 · 2006 A4 · 2005 A4 · 2004 A4 · 2002 A4 · 2001 A4 · 2000 A4 · 1999 A4 · 1998 A4 · 1997 A4 · all 29 years
2003 Audi A3 · 2003 Audi A4 Quattro · 2003 Audi A6 · 2003 Audi A6 Quattro · 2003 Audi A8 · 2003 Audi A8 Quattro · 2003 Audi Allroad Quattro · 2003 Audi RS4 · 2003 Audi RS6 · 2003 Audi S3 · 2003 Audi S4 · 2003 Audi S6 · every 2003 model