The 2007 Audi S4 is a compact luxury performance sedan (also offered as an Avant wagon and Cabriolet) from Audi’s B7 generation, positioned as a high-output step above the A4 and below the RS models. It’s ideal for drivers who want a refined daily driver with serious V8 power, available manual transmission, and all-weather confidence from quattro all-wheel drive. For 2007, the S4 continued the B7-era formula: understated styling, premium interior quality, and strong real-world acceleration. In the used market, it competes with the BMW 335i and Mercedes-AMG C55 for buyers who prioritize performance with a more subtle, upscale feel.

1) 4.2L V8 PERFORMANCE: The standout feature is the naturally aspirated 4.2-liter V8 (commonly rated around 340 hp), delivering smooth, linear power and a distinctive exhaust note compared to turbocharged rivals. 2) QUATTRO ALL-WHEEL DRIVE: Audi’s full-time quattro system provides excellent traction in wet and winter conditions and makes the S4 feel planted under acceleration. 3) TRANSMISSION CHOICES: Many enthusiasts seek the 6-speed manual for engagement and long-term appeal, while the available automatic offers easier commuting (but may have higher long-term maintenance considerations). 4) SPORT-TUNED CHASSIS: A firmer suspension, stronger brakes, and sport-oriented tuning over the A4 give the 2007 S4 confident handling without sacrificing luxury-car comfort. 5) PREMIUM CABIN AND EQUIPMENT: Leather seating, high-quality materials, available heated seats, and Audi’s upscale ergonomics make it feel special even by modern standards.

Shoppers researching 2007 Audi S4 reliability and 2007 Audi S4 problems should know this is a high-performance German car with higher running costs than a typical sedan. When maintained well, many are enjoyable long-term, but there are several 2007 Audi S4 common issues to watch for. 1) TIMING CHAIN SYSTEM WEAR (GUIDES/TENSIONERS): The 4.2L V8 uses a timing chain setup located at the rear of the engine. Over time, chain guide and tensioner wear can show up as cold-start rattle, rough running, or fault codes, often surfacing around 80,000–120,000 miles (sometimes earlier or later depending on maintenance and driving). Repairs can be expensive due to labor intensity. 2) CAMSHAFT ADJUSTER/VARIABLE TIMING FAULTS: Some owners report cam adjuster issues or related sensor faults leading to check engine lights, reduced performance, or rough idle. This can appear in the 70,000–120,000-mile range and may overlap with timing-related concerns. 3) COOLING SYSTEM LEAKS (THERMOSTAT/WATER PUMP/HOSES): Like many European performance cars, cooling components can age out. Thermostat housing leaks, water pump seepage, or brittle hoses can cause coolant loss, overheating risk, or recurring low-coolant warnings, commonly appearing after 80,000+ miles. 4) CARBON BUILDUP/IDLE QUALITY (VARIES BY CONDITION): While the S4’s V8 is port-injected (generally less prone than direct-injection engines), some vehicles still develop deposits and drivability issues from age, short-trip use, or neglected maintenance. Symptoms can include uneven idle, reduced throttle response, and lower fuel economy.