2009-2011 Audi S4 (B8) 3.0 TFSI V6 (333 Hp) quattro S tronic

The Audi S4 (B8) 3.0 TFSI quattro S tronic represents a significant iteration of Audi’s performance-oriented S4 model, produced from 2009 to 2011. Positioned as the high-performance variant of the B8 Audi A4, the S4 aimed to deliver a compelling blend of luxury, technology, and exhilarating driving dynamics. This specific configuration, featuring the 3.0-liter TFSI V6 engine paired with the seven-speed S tronic dual-clutch transmission and Audi’s quattro all-wheel-drive system, was a cornerstone of the B8 S4 lineup, offering a more accessible entry point into the performance sedan segment compared to the manual transmission options. It served as a direct competitor to BMW’s E90 335i and Mercedes-Benz’s C350.

Technical Specifications

Powertrain & Engine Architecture

At the heart of the S4 (B8) 3.0 TFSI lies the CAKA or CCBA engine code, a 3.0-liter naturally aspirated V6 engine. This engine utilizes direct fuel injection (FSI) and a mechanically driven supercharger to deliver a broad torque curve and impressive power output. The supercharger, unlike a turbocharger, provides instant boost response, eliminating turbo lag and contributing to the engine’s immediate throttle response. The engine also features an intercooler to cool the intake air, further enhancing performance. The valvetrain employs double overhead camshafts (DOHC) with four valves per cylinder, optimizing airflow for efficient combustion. The seven-speed S tronic dual-clutch transmission (DCT) is a key component of this variant. This transmission offers incredibly fast and smooth gear changes, contributing to both performance and fuel efficiency. Unlike a traditional automatic, the S tronic uses two separate clutches – one for odd gears and one for even gears – allowing for pre-selection of the next gear, resulting in near-instantaneous shifts.

Driving Characteristics

The 3.0 TFSI engine paired with the S tronic transmission delivers a distinctly different driving experience compared to the six-speed manual S4 models. While the manual offered a more engaging, driver-focused feel, the S tronic provided effortless acceleration and seamless gear changes. The supercharger’s immediate response meant that power was readily available at any engine speed, making overtaking and merging onto highways a breeze. The quattro all-wheel-drive system provided exceptional traction, particularly in inclement weather, and contributed to confident handling. The S tronic’s programming prioritized smooth shifts in normal driving modes, but could be shifted into a sport mode for more aggressive gear changes and a more responsive throttle. Compared to the higher-output 3.2 FSI V6 found in some European market A4s, the 3.0 TFSI offered a more accessible power delivery and a slightly more refined driving experience.

Equipment & Trim Levels

The S4 3.0 TFSI quattro S tronic typically came well-equipped as standard. Interior features included sport seats upholstered in Milano leather, a three-spoke multifunction steering wheel, and aluminum interior trim. The infotainment system featured a 6.5-inch display screen with Audi’s MMI (Multi Media Interface) controller. Standard exterior features included 18-inch alloy wheels, S line styling cues, and xenon plus headlights. Optional extras included a panoramic sunroof, navigation system, Bang & Olufsen sound system, and adaptive cruise control. The S tronic transmission was often bundled with features like paddle shifters for manual gear selection.

Chassis & Braking

The S4 (B8) featured a sport-tuned suspension designed to provide a balance between comfort and handling. The front suspension utilized an independent multi-link setup, while the rear suspension employed an independent trapezoidal link design. Stabilizer bars were fitted to both the front and rear axles to reduce body roll during cornering. Braking duties were handled by ventilated discs at all four corners, providing ample stopping power. The ABS (Anti-lock Braking System) and electronic stability control (ESC) systems were standard, enhancing safety and control.

Market Reception & Comparison

The Audi S4 (B8) 3.0 TFSI quattro S tronic was generally well-received by automotive critics. It was praised for its potent engine, responsive transmission, and sophisticated interior. The S tronic transmission was lauded for its smoothness and speed, although some reviewers noted that it lacked the engagement of a traditional manual gearbox. Fuel economy was considered reasonable for a performance sedan of its class, although it was not a primary focus. Compared to the manual transmission S4, the S tronic version appealed to buyers who prioritized convenience and ease of use over outright driver involvement. Against competitors like the BMW 335i, the S4 offered a more refined and technologically advanced experience, while the BMW often provided a more raw and sporty driving feel.

Legacy

The 3.0 TFSI engine and S tronic transmission combination proved to be relatively reliable, although preventative maintenance is crucial. Common issues include oil consumption and potential problems with the timing chain tensioners. The S tronic transmission requires regular fluid changes to ensure smooth operation and longevity. Today, the B8 S4 3.0 TFSI quattro S tronic remains a popular choice in the used car market, offering a compelling blend of performance, luxury, and technology at a relatively affordable price point. Its reputation for reliability, combined with its engaging driving dynamics, ensures its continued appeal to enthusiasts.