🏷️ Basic Information Identification Make: Audi Model: A4 Quattro Year: 2009 Codes Chassis Code: B8 👋 Introduction Market Position Positioning: Premium compact executive sedan/wagon targeting discerning drivers seeking performance, technology, and luxury. Competitive Analysis Competitors: BMW 3 Series, Mercedes-Benz C-Class, Lexus IS, Infiniti G37 Key Features Design Philosophy: Understated elegance, sophisticated interior, balanced driving dynamics, and quattro all-wheel drive as a core offering. 📋 Manual Details Coverage Areas Primary Coverage: Service and Repair Secondary Coverage: Maintenance, Diagnostics, Troubleshooting, Wiring Diagrams Page Count Estimated Page Count: Thousands (comprehensive digital format) Manual Type Type: Online Service and Repair Manual Software Language Language: English Format Format: Web-based access (PC, Laptop, Smartphone, Tablet compatible) Access Duration: 1 Year Subscription (Discounts for extensions) 📖 Manual Coverage Systems Covered Powertrain: Engine Mechanical, Engine Management, Fuel System, Ignition System, Exhaust System, Drivetrain (Transmission, Axles, Differentials) Chassis: Suspension (Front & Rear), Steering System, Brake System, Wheels & Tires Electrical: Body Electrical, Lighting, Instruments, HVAC (Heating, Ventilation, Air Conditioning), Infotainment System, Navigation System, Driver Assistance Systems, Wiring Diagrams Procedures Included Maintenance: Routine Scheduled Maintenance, Fluid Changes, Filter Replacements, Belt Inspections/Replacements Repair: Engine Overhaul, Transmission Repair, Brake Component Replacement, Suspension Component Replacement, Electrical Component Diagnosis and Replacement, Body Panel Repair Diagnostics: Troubleshooting Guides, Fault Code Interpretation, Diagnostic Procedures for all major systems Technical Depth Depth: Factory-level detail, including specifications, tolerances, diagnostic trees, and step-by-step repair instructions. 📊 Manual Specifications File Format File Format Details: Proprietary web-based application, accessible via modern web browsers. Print Quality Print Quality: N/A (Digital format, printable pages may vary in quality based on user's printer) Binding Type Binding Type: N/A (Digital format) Paper Type Paper Type: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Code: 2.0 TFSI (e.g., CDNB, CDNC) Engine Type: Inline 4-cylinder, turbocharged, direct injection Displacement: 1984 cc (2.0 Liters) Bore X Stroke: 82.5 mm x 92.8 mm Compression Ratio: 9.6:1 (typical) Performance Horsepower: 200 - 211 PS (approx. 197 - 208 bhp) Torque: 280 - 350 Nm (approx. 207 - 258 lb-ft) Fuel System Fuel Delivery: Direct Fuel Injection (TFSI) Fuel Type: Premium Unleaded Gasoline (91 AKI or higher recommended) Engine Management ECU: Bosch Motronic (specific variant depends on market and engine code) 🔧 Transmission Standard Transmission Type: 6-speed Manual Transmission (e.g., 0B5 for S tronic) Optional Transmission Type Optional: Continuously Variable Transmission (CVT) Multitronic (Front-wheel drive models), 7-speed S tronic dual-clutch automatic (Quattro models) Features Quattro System: Torsen T-3 center differential with asymmetrical torque distribution Fluid Specifications Manual Transmission Fluid: G 052 726 A2 (or equivalent GL-4/GL-5 SAE 75W-90) S Tronic Fluid: G 052 512 A2 (or equivalent ATF) 📐 Dimensions Exterior Length: 4703 mm (Sedan) Width: 1811 mm Height: 1437 mm (Sedan) Wheelbase: 2808 mm Weights Curb Weight: 1570 - 1650 kg (approx., depending on configuration) Gross Vehicle Weight Rating: 2250 kg (approx.) 🛡️ Safety Features Ratings NHTSA Rating: 5-Star Overall (typically) IIHS Top Safety Pick: Yes (likely for 2009 model year) Active Features Electronic Stability Control: Standard (ESC) Anti Lock Braking System: Standard (ABS) Traction Control: Standard (ASR) Passive Features Airbags: Front, Side, Curtain Airbags Seatbelts: 3-point front and rear seatbelts with pre-tensioners Child Seat Anchors: ISOFIX/LATCH system 💡 Technology Features Infotainment Mmi System: Multi Media Interface (MMI) with optional navigation, Bluetooth, SD card reader, CD player. Driver Assistance Optional Features: Adaptive Cruise Control (ACC), Audi Parking System Plus, Lane Departure Warning (Audi Lane Assist) Connectivity Connectivity Options: Bluetooth for phone calls and audio streaming 🔧 Maintenance Service Intervals Oil Change Interval: 10,000 miles or 12 months, whichever comes first (LongLife Oil) Major Service Interval: Every 40,000 miles or 4 years (e.g., spark plugs, air filter, cabin filter) Timing Belt Chain: Timing Chain (maintenance-free under normal conditions, but inspection recommended) Fluid Specifications Engine Oil Type: SAE 0W-30 or 5W-30 Synthetic, meeting VW 502 00 or 504 00 specifications Engine Oil Capacity: Approx. 4.7 Liters (5 US Quarts) Coolant Type: G 13 (Pink/Violet) or G 12 Plus (Red) Antifreeze/Coolant Brake Fluid Type: DOT 4 Known Issues Common Issues: Oil consumption (early TFSI engines), PCV valve issues, ignition coil failures, water pump leaks, potential timing chain tensioner issues (though less common than earlier generations). 📚 Vehicle History Brand Heritage Heritage Overview: Audi AG, a German luxury automobile manufacturer, known for its advanced engineering, quattro all-wheel-drive system, and sophisticated design. Model Evolution Generation: Third Generation (B8) Introduction Year Generation: 2008 (for the 2009 model year) Key Changes Generation: All-new platform (MLB), revised styling, improved interior, updated powertrains, introduction of advanced technologies. Production Manufacturing Locations: Ingolstadt, Germany; Neckarsulm, Germany 🏆 Awards & Recognition Recognitions Awards Context: The Audi A4, as a model line, has historically received numerous awards for design, safety, and performance from various automotive publications and organizations.