This comprehensive service and repair manual provides all the technical information you need to maintain and repair your 2005 Audi A4 S4. It is a complete workshop manual, offering the same detailed information as the factory shop manual. The manual covers every aspect of your vehicle, from basic maintenance procedures to complex engine and transmission repairs.

You'll find detailed instructions and diagrams for procedures such as:

* Lubrication and Maintenance
* Suspension and Steering System Repairs
* Brake System Maintenance and Overhaul
* Cooling System Diagnosis and Repair
* Electrical System Troubleshooting and Repair
* Engine Repair and Rebuilding
* Fuel System Diagnosis and Maintenance
* Exhaust System Repair
* Transmission Service and Repair
* Heating and Air Conditioning System Diagnosis and Repair
* Emission Control System Maintenance and Troubleshooting
* Bodywork Repair and Refinishing
* Comprehensive Wiring Diagrams

Whether you're a professional mechanic or a DIY enthusiast, this manual is an invaluable resource for keeping your Audi A4 S4 running smoothly.

## The Audi A4 S4: A Symphony of Performance and Luxury

The Audi A4 S4, produced from 2005 to 2008, is a high-performance sedan that seamlessly blends sporty handling with luxurious comfort. It's a testament to Audi's engineering prowess, boasting a powerful V8 engine capable of delivering exhilarating acceleration while maintaining a refined and sophisticated driving experience. Under the hood lies a 4.2-liter, naturally aspirated V8 engine, generating 340 horsepower and 302 lb-ft of torque, paired with either a six-speed manual or a six-speed Tiptronic automatic transmission. This potent powertrain propels the S4 from 0 to 60 mph in a mere 5.1 seconds, showcasing its athleticism and making it a true enthusiast's car.

Beyond the impressive performance, the S4 provides a refined and comfortable driving experience. Its elegant interior features premium materials and meticulous craftsmanship, offering a luxurious and inviting atmosphere. The well-appointed cabin offers ample space for both driver and passengers, and comes equipped with advanced technology features, including a navigation system, a powerful sound system, and a comprehensive array of safety features. The S4's handling is equally impressive, thanks to its sport-tuned suspension and precise steering, providing a balanced and responsive driving experience. This combination of power, luxury, and handling makes the A4 S4 a compelling choice for discerning drivers seeking a blend of practicality and performance.