The service and repair manual for the 2003 INFINITI QX4 — the 3.5L V6 engine, 1 trim. Matched to this exact model year, so the specifications and sequences are the ones INFINITI published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2003 |
|---|---|
| Engines | 3.5L V6 — 213 cu in, DOHC |
| Trims | Base Sport Utility 4-Door |
| Federal record | 4 recalls · 25 complaints · 42 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2003 QX4 manual
03 / ContentsSections in the manual
- Quick Lookups 291
- General Information 1,903
- Accessories & Equipment 654
- Heating, Ventilation & A/C (HVAC) 223
- Body & Frame 268
- Maintenance 28
- Brakes 184
- Restraints 117
- Drivelines & Axles 135
- Steering 96
- Electrical 708
- Suspension 38
- Engine Mechanical 197
- Transmission 276
- Engine Performance 1,436
- With 22
- Operate for at least 10
04 / Known issuesRecalls on federal record for the 2003 QX4
- Steering — column · 11V244000The strut housing may crack and pull away from the inner hood ledge assembly. this may lead to gri.
- Air Bags · 15V287000In the event of a crash necessitating deployment of the passenger's frontal air bag, the inflator co.
- Air Bags — frontal › driver side › inflator module · 22E066000An inflator explosion may result in sharp metal fragments striking the driver or other occupants res.
- Air Bags — frontal › passenger side › inflator module · 20V008000An inflator explosion may result in sharp metal fragments striking the driver or other occupants res.
Owners have filed 25 complaints and INFINITI has issued 42 technical service bulletins for the 2003 QX4. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2003 QX4 manual
Is this manual specific to the 2003 QX4?
Yes. It is the OEM manual matched to the 2003 model year, covering the 3.5L V6 across the Base Sport Utility 4-Door trims. Specifications and procedure sequences are the ones INFINITI published for this year.
What 2003 QX4 problems does it help with?
4 recalls are on federal record for the 2003 QX4, covering steering, air bags. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by INFINITI dealers.
Does it include 2003 QX4 wiring diagrams?
Yes — the complete wiring diagrams for the 2003 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $29.99 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 QX4 years and 2003 INFINITI models
2002 QX4 · 2001 QX4 · 2000 QX4 · 1999 QX4 · 1998 QX4 · 1997 QX4 · all 7 years
2003 INFINITI FX35 · 2003 INFINITI FX45 · 2003 INFINITI G35 · 2003 INFINITI I35 · 2003 INFINITI M45 · 2003 INFINITI Q45 · every 2003 model