2004 INFINITI M45 Service & Repair Manual

← 2003All M45 years2006 →

The service and repair manual for the 2004 INFINITI M45 — the 4.5L V8 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 year2004
Engines
4.5L V8 — 275 cu in, DOHC
TrimsBase Sedan 4-Door
Federal record2 recalls · 49 complaints · 27 technical service bulletins (refreshed 2026-08-21)

02 / InsideSample pages from the 2004 M45 manual

2004 INFINITI M45 service manual page 12004 INFINITI M45 service manual page 22004 INFINITI M45 service manual page 32004 INFINITI M45 service manual page 42004 INFINITI M45 service manual page 52004 INFINITI M45 service manual page 6

03 / ContentsSections in the manual

  • Quick Lookups 436
  • General Information 1,875
  • Accessories & Equipment 2,049
  • Heating, Ventilation & A/C (HVAC) 244
  • Body & Frame 727
  • Maintenance 28
  • Brakes 192
  • Restraints 149
  • Drivelines & Axles 100
  • Steering 123
  • Electrical 1,548
  • Suspension 81
  • Engine Mechanical 438
  • Transmission 535
  • Engine Performance 3,502
  • Deflection is with 22

04 / Known issuesRecalls on federal record for the 2004 M45

  1. Exterior Lighting — brake lights › switch · 04V497000
    If this occurs, the brake lights will not illuminate when the brake is applied, which could result i.
  2. Fuel System, Gasoline · 12V088000
    The vehicle may stall without warning, increasing the risk of a crash.

Owners have filed 49 complaints and INFINITI has issued 27 technical service bulletins for the 2004 M45. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.

FAQQuestions about the 2004 M45 manual

Is this manual specific to the 2004 M45?

Yes. It is the OEM manual matched to the 2004 model year, covering the 4.5L V8 across the Base Sedan 4-Door trims. Specifications and procedure sequences are the ones INFINITI published for this year.

What 2004 M45 problems does it help with?

2 recalls are on federal record for the 2004 M45, covering exterior lighting, fuel system, gasoline. 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 M45 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 M45 years and 2004 INFINITI models

2010 M45 · 2009 M45 · 2008 M45 · 2007 M45 · 2006 M45 · 2003 M45 · all 7 years

2004 INFINITI FX35 · 2004 INFINITI FX45 · 2004 INFINITI G35 · 2004 INFINITI I35 · 2004 INFINITI Q45 · 2004 INFINITI QX56 · every 2004 model