Let's dive into the specifics of the 2009 Audi A4 2.0 TDI S Line. This car was a popular choice for its blend of style, performance, and fuel efficiency. If you're considering buying one or just curious about its specs, you've come to the right place. We'll cover everything from the engine and performance to the interior and features that made the S Line stand out. Buckle up, car enthusiasts!

Engine and Performance

The heart of the 2009 Audi A4 2.0 TDI S Line is its 2.0-liter Turbocharged Direct Injection (TDI) diesel engine. This engine is known for its impressive fuel economy and ample torque, making it a great choice for both city driving and long journeys. The TDI engine delivers a smooth and responsive driving experience, ensuring that you're never short on power when you need it. It’s designed to provide a good balance between performance and efficiency, which is a key selling point for many drivers.

Specifically, the engine produces around 143 horsepower (105 kW) and 320 Nm of torque. This allows the A4 to accelerate from 0 to 60 mph in approximately 9.4 seconds, which is quite respectable for a diesel sedan of its time. The top speed is around 132 mph, giving you plenty of power for highway driving. What’s more, the TDI engine is paired with either a six-speed manual or a continuously variable transmission (CVT), providing options to suit different driving preferences. The manual gearbox offers a more engaging driving experience, while the CVT focuses on maximizing fuel efficiency.

One of the standout features of the 2.0 TDI engine is its fuel economy. On average, you can expect around 50 mpg on the combined cycle, making it a very economical choice for daily commuting and long trips. This impressive fuel economy is partly due to the TDI technology, which optimizes fuel injection and combustion for maximum efficiency. The engine also benefits from advanced features such as common rail direct injection and a variable geometry turbocharger, which help to improve performance and reduce emissions. All these factors combine to make the 2009 Audi A4 2.0 TDI S Line a compelling option for those seeking a balance of power, efficiency, and driving pleasure. The TDI engine’s reliability and longevity are also well-regarded, making it a solid choice for a used car purchase. With regular maintenance, these engines can provide years of dependable service, offering peace of mind to their owners.

Exterior Design and Features

The 2009 Audi A4 S Line isn't just about what's under the hood; it also boasts a striking exterior design. The S Line trim adds a sporty edge to the already sleek A4, making it stand out from the crowd. Key features include a unique front and rear bumper design, side skirts, and S Line badging, giving it a more aggressive and dynamic look.

The front of the car is dominated by Audi's signature single-frame grille, which is finished in a sporty black gloss on the S Line. The headlights are sharp and angular, and they often come with xenon bulbs and LED daytime running lights, providing excellent visibility and a modern appearance. The S Line front bumper features larger air intakes, enhancing the car's sporty aesthetic and improving airflow to the engine. Moving to the side, the S Line side skirts add a subtle but noticeable flair, making the car appear lower and more athletic. The car typically rides on larger alloy wheels, usually 18 or 19 inches in diameter, which not only look great but also improve handling and stability.

At the rear, the S Line features a unique bumper design with an integrated diffuser, which adds to the car's sporty appearance. The taillights are sleek and modern, and they often incorporate LED technology for improved visibility and a premium look. The S Line badging on the rear deck lid is a subtle reminder of the car's sporty credentials. Overall, the exterior design of the 2009 Audi A4 2.0 TDI S Line is both stylish and functional, with a focus on enhancing the car's sporty character. The S Line trim adds a level of sophistication and aggression that sets it apart from the standard A4, making it a popular choice for those who want a car that looks as good as it performs. The attention to detail and high-quality materials used in the exterior design reflect Audi's commitment to excellence and make the 2009 A4 S Line a visually appealing and desirable car.

Interior Comfort and Technology

Step inside the 2009 Audi A4 2.0 TDI S Line, and you'll find a cabin that blends comfort with technology. The S Line trim enhances the interior with sport seats, a three-spoke leather steering wheel, and unique trim elements. The seats are designed to provide excellent support during spirited driving, while the leather steering wheel adds a touch of luxury and sportiness. The interior is crafted with high-quality materials, giving it a premium feel that is in line with Audi's reputation.

The dashboard is well-organized and features Audi's Multi Media Interface (MMI) system, which controls various functions such as audio, navigation, and vehicle settings. The MMI system is relatively easy to use, with a central rotary dial and buttons that allow you to navigate through the menus. The infotainment screen is clear and easy to read, providing you with all the information you need at a glance. The car also comes with a range of features such as dual-zone climate control, which allows the driver and passenger to set their preferred temperature, and a premium sound system that delivers excellent audio quality. Other available features include Bluetooth connectivity, which allows you to make hands-free phone calls and stream music from your smartphone, and a navigation system that provides turn-by-turn directions.

The interior of the 2009 Audi A4 2.0 TDI S Line is designed to be both comfortable and functional, with plenty of storage space for your belongings. The seats are supportive and well-cushioned, making them comfortable for long journeys. The rear seats offer decent legroom and headroom, making the car suitable for families. The trunk is also spacious, providing ample room for luggage and other items. Overall, the interior of the 2009 Audi A4 2.0 TDI S Line is a pleasant place to be, with a focus on quality, comfort, and technology. The S Line trim adds a touch of sportiness and luxury, making it a desirable choice for those who want a car that is both stylish and practical. The attention to detail and high-quality materials used in the interior design reflect Audi's commitment to excellence and make the 2009 A4 S Line a comfortable and enjoyable car to drive.

Safety Features

When it comes to safety, the 2009 Audi A4 is equipped with a comprehensive suite of features to protect you and your passengers. Standard safety equipment includes anti-lock brakes (ABS), electronic stability control (ESC), and multiple airbags, including front, side, and curtain airbags. These systems work together to help prevent accidents and minimize the risk of injury in the event of a collision. The ABS system helps prevent the wheels from locking up during hard braking, allowing you to maintain steering control. The ESC system helps prevent skidding by applying the brakes to individual wheels when it detects a loss of traction.

In addition to these standard features, the 2009 Audi A4 also offers a range of optional safety technologies. These include Audi's Side Assist system, which monitors the blind spots and alerts you to the presence of vehicles in adjacent lanes, and adaptive cruise control, which maintains a set distance from the vehicle in front and automatically adjusts the speed to avoid collisions. The car also features a tire pressure monitoring system, which alerts you if the tire pressure is too low, and parking sensors, which help you avoid obstacles when parking. The 2009 Audi A4 has been crash-tested by the National Highway Traffic Safety Administration (NHTSA) and the Insurance Institute for Highway Safety (IIHS), and it has received good ratings in these tests, indicating that it provides a high level of protection in the event of a crash.

Overall, the 2009 Audi A4 2.0 TDI S Line is a safe and reliable car that offers a range of features to protect you and your passengers. The combination of standard and optional safety equipment makes it a good choice for families and anyone who values safety. The car's solid construction and advanced safety technologies provide peace of mind and make it a safe and enjoyable car to drive. The focus on safety reflects Audi's commitment to protecting its customers and making its cars as safe as possible.

Common Issues and Maintenance

Like any car, the 2009 Audi A4 2.0 TDI S Line has its share of common issues and maintenance requirements. Being aware of these can help you keep your A4 running smoothly for years to come. One common issue with the 2.0 TDI engine is the diesel particulate filter (DPF), which can become clogged over time, especially if the car is mainly used for short journeys. A clogged DPF can reduce engine performance and fuel economy, and it may eventually require replacement. To help prevent DPF problems, it's a good idea to take the car for a longer drive on the highway occasionally, which allows the DPF to regenerate and clear out any accumulated soot.

Another common issue with the 2.0 TDI engine is the failure of the fuel injectors. The fuel injectors are responsible for delivering fuel to the engine, and if they become clogged or worn, they can cause a variety of problems, such as rough running, poor fuel economy, and reduced power. To help prevent fuel injector problems, it's important to use high-quality fuel and to have the fuel system serviced regularly. The timing belt is another important component that needs to be replaced at regular intervals. If the timing belt breaks, it can cause serious damage to the engine, so it's essential to follow the manufacturer's recommendations for replacement.

In addition to these engine-related issues, the 2009 Audi A4 can also suffer from problems with the suspension, brakes, and electrical system. The suspension components, such as the shocks and struts, can wear out over time, leading to a bumpy ride and poor handling. The brakes can also wear out, and it's important to have them inspected regularly and replaced as needed. The electrical system can also be prone to problems, such as faulty sensors, wiring issues, and problems with the infotainment system. To help prevent these problems, it's important to have the car serviced regularly by a qualified mechanic and to address any issues as soon as they arise. With regular maintenance and proper care, the 2009 Audi A4 2.0 TDI S Line can be a reliable and enjoyable car to own.