The 2004 Subaru Legacy is a midsize sedan or wagon built for drivers who want all-weather confidence, practical space, and a secure, road-stable feel. It sits in the fourth-generation Legacy lineup (2000–2004), making 2004 one of the most mature and refined years of this generation before the full redesign that arrived for 2005. With standard Symmetrical All-Wheel Drive on most trims and a reputation for winter capability, it’s a strong choice for commuters, small families, and outdoors-focused owners who value traction and utility over flashy styling.

1) STANDARD SUBARU SYMMETRICAL AWD: A major differentiator in the midsize segment for 2004, offering improved grip in rain and snow compared to many front-wheel-drive rivals. 2) BOXER ENGINE LAYOUT: Flat-four design helps keep the center of gravity low for stable handling. Common engine options include a 2.5L flat-four (often listed around 165 hp depending on trim) and, on some models, a 3.0L flat-six (H6) for smoother power delivery. 3) SEDAN OR WAGON PRACTICALITY: The Legacy wagon is especially popular for its usable cargo area and roof-friendly profile, while the sedan offers a balanced midsize footprint. 4) AUTOMATIC OR MANUAL TRANSMISSION AVAILABILITY: Depending on trim and market, buyers could choose an automatic for daily ease or a manual for added driver engagement. 5) SAFETY AND ALL-SEASON USABILITY: Strong road manners, predictable traction, and a straightforward interior layout make it a solid daily driver in mixed climates.

Searches for 2004 Subaru Legacy problems usually focus on a few repeat items. Overall, 2004 Subaru Legacy reliability is often described as good when maintenance is consistent, but certain issues are well-known. 1) HEAD GASKET LEAKS (2.5L): One of the most discussed 2004 Subaru Legacy common issues. External coolant or oil seepage can develop, often showing up around 90,000–150,000 miles. Symptoms may include coolant smell, visible seepage near the engine, overheating, or contaminated fluids if the issue progresses. Not every car is affected, but it’s a top inspection priority. 2) OIL CONSUMPTION OR LEAKS: Aging seals and gaskets can lead to oil leaks (valve cover gaskets are a common culprit), especially past 100,000 miles. Drivers may notice oil spots, burning-oil smell, or a need to top off between services. 3) SUSPENSION AND WHEEL BEARING WEAR: Some owners report front or rear wheel bearing noise (a growl or hum that rises with speed) or worn struts/bushings as mileage climbs, commonly around 120,000–180,000 miles. Rough roads and winter salt can accelerate wear. 4) AUTOMATIC TRANSMISSION TORQUE BIND (SOME AWD AUTOMATICS): A binding or shuddering sensation during tight turns can occur if AWD system components or fluids are neglected. Proper fluid service helps, and diagnosis is important because symptoms can overlap with tire-related AWD issues.