🏷️ Basic Information Identification Make: Audi Model: A6 Quattro Year: 2003 Codes Chassis Code: C5 Generation Generation: Second Generation (C5) 👋 Introduction Market Position Market Position: Premium executive sedan segment Competitive Analysis Competitive Analysis: Competed directly with models like the BMW 5 Series, Mercedes-Benz E-Class, and Lexus GS. Key Features Key Features: Standard Quattro all-wheel drive, luxurious interior, advanced technology, refined ride quality, strong performance options. 📋 Manual Details Coverage Areas Coverage Areas: Full vehicle service, repair, and maintenance Page Count Page Count: Extensive (digital, comprehensive) Manual Type Manual Type: Service and Repair Manual Software Language Language: English Format Format: Online Software / Digital Access Manual Developer Manual Developer: RepairSurge Licensing Licensing: Officially Licensed / Licensed information derived from OE materials 📖 Manual Coverage Systems Covered Systems Covered: Engine mechanical and electrical, transmission (automatic and manual), driveline, suspension, steering, brakes (ABS, ESP), climate control (HVAC), fuel system, exhaust system, electrical systems, body and interior, safety systems (airbags), wiring diagrams Procedures Included Procedures Included: Routine maintenance, troubleshooting, diagnostics, component repair and replacement, system overhauls, electrical diagnostics, wiring harness repair, body panel repair, interior trim removal/installation, HVAC service Procedures Included Bodywork: Body panel alignment, rust repair, dent removal, panel replacement, trim removal and installation. Procedures Included Electrical: Component testing, wiring harness repair, fuse and relay identification, lighting system service, instrument cluster diagnostics. Technical Depth Technical Depth: Factory-level diagnostics and repair procedures, detailed specifications, torque values, special tool requirements, step-by-step instructions, diagnostic trouble codes (DTCs) and troubleshooting trees Diagnostics Diagnostics Coverage: OBD-II diagnostic codes, troubleshooting procedures for common faults, component testing 📊 Manual Specifications File Format File Format: Web-based access (HTML, JavaScript) Print Quality Print Quality: N/A (Digital Access) Binding Type Binding Type: N/A (Digital Access) Paper Type Paper Type: N/A (Digital Access) Access Duration Access Duration: 1 year subscription Device Compatibility Device Compatibility: PC, Laptop, Smartphone, Tablet (requires internet connection and web browser) ⚙️ Engine Specifications Primary Engine Engine Displacement Liters: 2.7 (for V6 Bi-Turbo), 3.0 (for V6 FSI), 4.2 (for V8 FSI) Engine Configuration: V6, V8 Engine Code Examples: ARE (2.7T), BBK (3.0), BBK (3.0), AUH (2.7T) Performance Horsepower Range: 237 HP (2.7T) to 300 HP (4.2 V8) Torque Range: 258 lb-ft (2.7T) to 317 lb-ft (4.2 V8) Acceleration 0 60 Mph Seconds Range: 6.5 - 7.5 (depending on engine and transmission) Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) / Fuel Stratified Injection (FSI for V8) Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) Engine Code Examples Engine Code Examples 2.7T: APU, AWT, ARK, AZA, ARE Engine Code Examples 3.0: ASN, AVK Engine Code Examples 4.2: ASG, BAR 🔧 Transmission Standard Transmission Type Standard: 5-speed Tiptronic Automatic (standard on most models) Optional Transmission Type Optional: 6-speed Manual (less common) Features Transmission Features: Torsen center differential (Quattro system), manual override via Tiptronic shifter or steering wheel buttons Transmission Fluid Manual Transmission Fluid Manual: G 052 171 A2 or equivalent (for 6-speed manual) 📐 Dimensions Exterior Length Inches: 191.3 Width Inches: 71.0 Height Inches: 57.0 Wheelbase Inches: 110.4 Weights Curb Weight Lbs Range: 3700 - 4000 (approx.) Interior Passenger Volume Cubic Feet: Approx. 101.0 Cargo Volume Cubic Feet: Approx. 15.1 🛡️ Safety Features Ratings NHTSA Frontal Driver: 5-star NHTSA Frontal Passenger: 5-star IIHS Moderate Overlap Front: Good Active Features Active Safety Features: Anti-lock Braking System (ABS), Electronic Stability Program (ESP), Traction Control System (ASR), Quattro All-Wheel Drive Passive Features Passive Safety Features: Front airbags (driver and passenger), front side airbags, side curtain airbags (optional) 💡 Technology Features Infotainment Infotainment System: Audi Navigation System (RNS-D), Symphony stereo with CD player, Bose premium sound system (optional) Driver Assistance Driver Assistance Features: Parking sensors (optional), cruise control Connectivity Connectivity Features: OnStar (North America, optional), hands-free calling preparation (optional) 🔧 Maintenance Service Intervals Oil Change Interval Miles: 7,500 miles or 12 months (flexible service system depending on driving) Timing Belt Replacement Miles: 60,000-100,000 miles (depending on engine and specific interval) Spark Plug Replacement Miles: 60,000-100,000 miles (depending on spark plug type) Fluid Specifications Engine Oil Type: SAE 0W-40 or 5W-40 Synthetic (API SM or SN, ACEA A3/B4, VW 502 00/505 00 approved) Coolant Type: G12 or G12+ (Pink/Red ethylene glycol based coolant) Transmission Fluid Automatic: G 055 025 (for 5HP24, 5HP19) or equivalent ATF, check manual for specific type Brake Fluid Type: DOT 4 Known Issues Known Issues Common: Ignition coil failure, ABS/ESP module issues, coolant flange leaks, camshaft adjuster solenoid failures, window regulator failure, oil cooler leaks, PCV system issues, sagging headliner, worn suspension components (control arms, bushings) Fluid Capacities Engine Oil Capacity Liters: Approx. 4.5 - 5.0 (depending on engine) Coolant Capacity Liters: Approx. 7.5 - 8.5 (depending on engine and radiator size) Brake Fluid Capacity Liters: Approx. 1.0 Filter Part Numbers Oil Filter Part Number Example: Mann-Filter HU 711/5z, Bosch 0 986 452 045 Air Filter Part Number Example: Mann-Filter C...