The service and repair manual for the 2004 Subaru Legacy — the 2.5L H4 engine, 6 trims. Matched to this exact model year, so the specifications and sequences are the ones Subaru published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 2004 |
|---|---|
| Engines | 2.5L H4 — 150 cu in, SOHC |
| Trims | L Sedan 4-Door · L Wagon 4-Door · GT Sedan 4-Door · L 35th Anniversary Sedan 4-Door · GT Wagon 4-Door · L 35th Anniversary Wagon 4-Door |
| Federal record | 9 recalls · 55 complaints · 175 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 2004 Legacy manual
03 / ContentsSections in the manual
- Quick Lookups 153
- Engine Performance 4,457
- Accessories & Equipment 783
- General Information 1,504
- Body & Frame 425
- Heating, Ventilation & A/C (HVAC) 153
- Brakes 1,122
- Restraints 63
- Drivelines & Axles 73
- Steering 134
- Electrical 565
- Suspension 76
- Engine Mechanical 616
- Transmission 174
- C) and engine at 1,500
04 / Known issuesRecalls on federal record for the 2004 Legacy
- Fuel System, Gasoline — delivery › fuel pump · 13E065000A fuel leak in the presence of an ignition source increases the risk of a fire.
- Air Bags — frontal › passenger side › inflator module · 16V359000An inflator rupture may result in metal fragments striking the vehicle occupants resulting in seriou.
- Air Bags — frontal › passenger side › inflator module · 16V358000An inflator rupture may result in metal fragments striking the vehicle occupants resulting in seriou.
- Air Bags — frontal › passenger side › inflator module · 16V361000An inflator rupture may result in metal fragments striking the vehicle occupants resulting in seriou.
- Fuel System, Gasoline — storage › tank assembly › filler pipe and cap · 03V303000This could result in fuel leakage. fuel leakage in the presence of an ignition source could result.
- Vehicle Speed Control — cables · 04V128000If this occurs during vehicle operation, the driver could lose control of the vehicle, which could r.
- Air Bags — frontal › passenger side › inflator module · 20V002000An inflator explosion may result in sharp metal fragments striking the driver or other occupants res.
- Air Bags — frontal › passenger side › inflator module · 20V001000An inflator explosion may result in sharp metal fragments striking the driver or other occupants res.
- Air Bags — frontal › passenger side › inflator module · 20V003000An inflator explosion may result in sharp metal fragments striking the driver or other occupants res.
Owners have filed 55 complaints and Subaru has issued 175 technical service bulletins for the 2004 Legacy. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 2004 Legacy manual
Is this manual specific to the 2004 Legacy?
Yes. It is the OEM manual matched to the 2004 model year, covering the 2.5L H4 across the L Sedan 4-Door, L Wagon 4-Door, GT Sedan 4-Door, L 35th Anniversary Sedan 4-Door, GT Wagon 4-Door, L 35th Anniversary Wagon 4-Door trims. Specifications and procedure sequences are the ones Subaru published for this year.
What 2004 Legacy problems does it help with?
9 recalls are on federal record for the 2004 Legacy, covering fuel system, gasoline, air bags, vehicle speed control. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Subaru dealers.
Does it include 2004 Legacy 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 Legacy years and 2004 Subaru models
2010 Legacy · 2009 Legacy · 2008 Legacy · 2007 Legacy · 2006 Legacy · 2005 Legacy · 2003 Legacy · 2002 Legacy · 2001 Legacy · 2000 Legacy · 1999 Legacy · 1998 Legacy · all 35 years
2004 Subaru Baja · 2004 Subaru Forester · 2004 Subaru Impreza · 2004 Subaru Outback · every 2004 model