The 2005 Infiniti FX35 is a sporty midsize luxury crossover SUV from Infiniti’s first-generation FX lineup (introduced for 2003). It’s designed for drivers who want sharp styling and car-like handling with SUV practicality, rather than a traditional truck-based ride. In the market, it competed with premium crossovers like the Lexus RX and BMW X5, leaning more toward performance and design than maximum cargo space. It’s a strong choice for commuters and small families who value a powerful V6 and upscale features, but it’s best for buyers comfortable staying on top of maintenance.

- 3.5L VQ35DE V6 engine (FX35): Strong, smooth power delivery with a performance-oriented feel; paired with a 5-speed automatic transmission. - Rear-wheel drive or AWD (Infiniti Intelligent AWD): RWD offers a sportier feel, while AWD adds confidence in rain and snow (with proper tires). - Sporty chassis tuning: Firm, responsive handling and steering compared with many crossovers from the same era. - Premium interior and tech for its time: Leather seating, available heated seats, available Bose audio, and available navigation, depending on trim and packages. - Distinctive “SUV-coupe” styling and practicality: A low, wide stance with usable cargo space, split-folding rear seats, and a driver-focused cabin layout.

Shoppers searching “2005 Infiniti FX35 reliability” will find that these can be dependable with good care, but age-related wear and a few repeat complaints are common. Here are several “2005 Infiniti FX35 problems” owners frequently report: - Oil consumption and valve cover seepage: Some FX35s develop higher-than-normal oil use as mileage climbs (often noticed past 100,000 miles). Others see oil leaks from valve cover gaskets, leading to burning-oil smells or drips. Checking oil level regularly is important on higher-mileage examples. - Cooling system wear (radiator/hoses/thermostat): As the vehicle ages, radiators and plastic cooling components can crack or seep. Overheating episodes are especially risky on any aluminum engine, so small coolant leaks should be addressed quickly. Failures are more common as mileage approaches the 100,000–150,000 range, depending on climate and maintenance. - Ignition coils and spark plug issues: Misfires, rough idle, and a flashing check engine light can point to failing coil packs or worn plugs, sometimes showing up around 80,000–120,000 miles. Replacing plugs on schedule and addressing misfires early helps protect the catalytic converters. - Suspension wear and driveline vibration: Owners commonly report worn front control arm bushings, ball joints, and sway bar links as mileage builds, causing clunks over bumps or uneven tire wear. Some also notice vibration from tired engine mounts or driveline components, especially on higher-mileage AWD vehicles.