🏷️ Basic Information Identification Make: Audi Model: A4 S4 Year: 2005 Codes Chassis Code: B6 Platform: Volkswagen Group PL46 👋 Introduction Market Position Vehicle Segment: Premium compact executive car. Competitors 2005: BMW 3 Series (E46/E90), Mercedes-Benz C-Class (W203), Lexus IS. Competitive Analysis Audi Strengths: Quattro all-wheel drive, refined interior, strong performance in S4 variant. Key Features Manual Value Proposition: Provides comprehensive factory-level repair and maintenance information in a digital format, saving costs compared to physical manuals or dealership services. Delivery Method: Instant email delivery, eliminating shipping delays and costs. 📋 Manual Details Coverage Areas Sections Covered: Lubrication & Maintenance, Suspension, Brakes, Cooling System, Electrical System, Engine, Fuel System, Exhaust System, Transmission, Heating and Air Conditioning, Emission Control Systems, Body, Wiring Diagrams Page Count Estimated Pages: Extensive (implied by factory shop manual similarity) Manual Type Type: Workshop Service / Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine: Detailed service, repair, troubleshooting, and overhaul procedures for all engine variants. Transmission: Service and repair of manual and automatic transmissions, including torque converter, clutch, and gearbox. Brakes: Inspection, maintenance, repair, and bleeding of braking systems, including ABS and EBD. Suspension: Front and rear suspension components, alignment, shock absorbers, struts, and steering linkage. Electrical System: Comprehensive coverage of the entire electrical system, including starter, alternator, battery, lighting, and accessories. Fuel System: Fuel pump, injectors, fuel lines, fuel filter replacement, and fuel pressure testing. Cooling System: Radiator, water pump, thermostat, hoses, and coolant capacity and specifications. Exhaust System: Catalytic converter, mufflers, exhaust pipes, and emissions control. HVAC: Heating, ventilation, and air conditioning system diagnosis, repair, and refrigerant handling. Emission Control: Diagnosis and repair of emission control systems, including EVAP and secondary air injection. Body: Body panel repair, door mechanisms, glass replacement, and interior trim. Wiring Diagrams: Detailed electrical wiring diagrams for all vehicle systems. Procedures Included Maintenance: Scheduled maintenance intervals, fluid changes, filter replacements, and inspections. Troubleshooting: Diagnostic charts and procedures for identifying and resolving common and uncommon faults. Repair: Step-by-step instructions for component removal, repair, and reinstallation. Rebuilding: Comprehensive procedures for engine, transmission, and component overhauls. Technical Depth Depth: Factory-level detail, suitable for professional technicians and experienced DIY enthusiasts. Diagnostics: Advanced diagnostic procedures, including OBD-II code interpretation and sensor testing. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely searchable due to PDF format, enabling quick access to information. Print Quality Print Capability: Printable in full or by section, allowing for convenient use in a workshop environment. Visuals: Includes numerous pictures and diagrams to illustrate procedures. Binding Type Binding: N/A (Digital Format) Paper Type Paper Quality: N/A (Digital Format, user-printable on desired paper) ⚙️ Engine Specifications Primary Engine A4 Engine Options: 2.0L TFSI (BGB, BPG, BWE, BWT), 3.0L V6 (ASN, AVK), 4.2L V8 (BBK - S4 only). S4 Engine: 4.2L V8 FSI (Naturally Aspirated) Performance S4 Horsepower: 340 hp @ 7000 rpm S4 Torque: 302 lb-ft (410 Nm) @ 3500 rpm Engine Codes Covered: Likely includes common A4 engine codes (e.g., BGB, BPG, ASN) and the S4 specific BBK. Fuel System Fuel Injection: Multi-point fuel injection (MPI) for most A4 engines, Direct Fuel Injection (FSI) for V8 S4. Maintenance Spark Plugs: Specific spark plug types and torque specifications provided. Timing Belt Chain: Details on timing belt (if applicable to specific A4 engines) or timing chain maintenance for V8. 🔧 Transmission Standard A4 Transmission Options: 6-speed manual, Tiptronic 6-speed automatic. S4 Transmission Options: 6-speed manual, Tiptronic 6-speed automatic. Optional Drivetrain: Quattro all-wheel drive standard on S4, optional on A4 variants. Features Transmission Fluid: Specifications and capacities for manual and automatic transmission fluids. Clutch Replacement: Procedures for clutch inspection, replacement, and flywheel servicing. 📐 Dimensions Exterior Wheelbase: Approximately 104.3 inches (2649 mm) Length: Approximately 178.4 inches (4531 mm) Width: Approximately 69.4 inches (1763 mm) Height: Approximately 55.4 inches (1407 mm) Weights Curb Weight S4: Approximately 3,858 lbs (1750 kg) for manual transmission Towing Capacity: Not typically specified for this vehicle class, but manual would detail if applicable. 🛡️ Safety Features Ratings NHTSA Ratings 2005: Likely good ratings, as the B6 platform generally performed well in crash tests. IIHS Ratings 2005: Refer to IIHS archives for specific 2005 model year ratings. Active Features ABS: Standard Anti-lock Braking System. Esc: Electronic Stability Control (ESP) standard. AWD: Quattro all-wheel drive enhances traction and stability. Passive Features Airbags: Front, side, and optional curtain airbags. Seatbelts: Front and rear seatbelt systems with pretensioners. 💡 Technology Features Infotainment Audi Navigation System: Optional Audi Navigation Plus system available. Audi Sound System: Optional Bose premium sound system available. Driver Assistance Parking Sensors: Optional front and rear parking sensors. Cruise Control: Standard cruise control. Connectivity Bluetooth: Optional Bluetooth hands-free interface might be available. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 5,000-7,500 miles (8,000-12,000 km) or annually, depending on driving conditions and oil type used. Manual will specify exact...