The service and repair manual for the 2004 INFINITI Q45 — the 4.5L V8 engine, 3 trims. 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 | 2004 |
|---|---|
| Engines | 4.5L V8 — 274 cu in, DOHC |
| Trims | Premium Sedan 4-Door · Base Sedan 4-Door · Convenience Sedan 4-Door |
| Federal record | 2 recalls · 14 complaints · 26 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2004 Q45 manual
03 / ContentsSections in the manual
- Quick Lookups 522
- General Information 1,884
- Accessories & Equipment 2,260
- Heating, Ventilation & A/C (HVAC) 269
- Body & Frame 995
- Maintenance 28
- Brakes 198
- Restraints 152
- Drivelines & Axles 71
- Steering 127
- Electrical 1,951
- Suspension 102
- Engine Mechanical 406
- Transmission 557
- Engine Performance 3,426
- Operate engine for at least 10
04 / Known issuesRecalls on federal record for the 2004 Q45
- Air Bags — side/window · 12V079000Non-deployment of side air bags could increase the risk of personal injury.
- Exterior Lighting — brake lights › switch · 04V497000If this occurs, the brake lights will not illuminate when the brake is applied, which could result i.
Owners have filed 14 complaints and INFINITI has issued 26 technical service bulletins for the 2004 Q45. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2004 Q45 manual
Is this manual specific to the 2004 Q45?
Yes. It is the OEM manual matched to the 2004 model year, covering the 4.5L V8 across the Premium Sedan 4-Door, Base Sedan 4-Door, Convenience Sedan 4-Door trims. Specifications and procedure sequences are the ones INFINITI published for this year.
What 2004 Q45 problems does it help with?
2 recalls are on federal record for the 2004 Q45, covering air bags, exterior lighting. 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 2004 Q45 wiring diagrams?
Yes — the complete wiring diagrams for the 2004 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 Q45 years and 2004 INFINITI models
2006 Q45 · 2005 Q45 · 2003 Q45 · 2002 Q45 · 2001 Q45 · 2000 Q45 · 1999 Q45 · 1998 Q45 · all 17 years
2004 INFINITI FX35 · 2004 INFINITI FX45 · 2004 INFINITI G35 · 2004 INFINITI I35 · 2004 INFINITI M45 · 2004 INFINITI QX56 · every 2004 model