🏷️ Basic Information Identification Make: Audi Model: A4 Year: 2005 Generation Platform Code: B6-8E Codes Chassis Code: 8E/8H 👋 Introduction Market Position Segment: Compact Executive / Premium Compact Sedan & Wagon Competitors: BMW 3 Series, Mercedes-Benz C-Class, Lexus IS, Volvo S60 Key Features Platform: VW Group B6 platform, shared with Volkswagen Passat Drivetrain Options: Available in Front-Wheel Drive (FWD) and Quattro All-Wheel Drive (AWD) Design Philosophy: Audi's signature 'singleframe' grille design evolution, refined interior quality, strong emphasis on driving dynamics 📋 Manual Details Coverage Areas Overall Scope: A-Z comprehensive service and repair Page Count Estimated Pages: 1000+ Manual Type Type: Factory Service Manual / Repair Manual Language Language: English Format Format: Digital (likely PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine (all variants), Transmission (manual & automatic), Clutch, Drivetrain Chassis: Suspension (front & rear), Steering, Brakes (hydraulic & ABS), Wheels & Tires Electrical: Engine Management Systems (ECU), Lighting, Instrumentation, Body Electrics, HVAC Controls, Infotainment, SRS (Airbag) Systems Bodywork: Body & Frame Repair, Exterior Trim, Doors, Hood, Trunk, Interior Trim, Glass & Seals Procedures Included Maintenance: Scheduled maintenance, Oil changes, Filter replacements, Spark plug service, Belt replacement, Fluid checks & changes Diagnostics: Troubleshooting guides, Diagnostic trouble codes (DTCs), Component testing, Circuit diagrams, Scan tool procedures Repair: Engine overhaul, Transmission repair, Brake caliper replacement, Suspension component replacement, Electrical component repair/replacement, Body panel repair Disassembly Assembly: Complete step-by-step instructions for component removal and installation Technical Depth Depth: Professional technician level; covers everything from basic fluid changes to complete engine and transmission rebuilds Special Tools: Details required special tools for specific procedures Torque Specs: Comprehensive list of torque specifications for all fasteners Wiring Diagrams: Includes detailed electrical wiring diagrams for all systems 📊 Manual Specifications File Format Searchability: Likely fully searchable text Printability: Printable pages Print Quality Quality: High-resolution imagery and diagrams Binding Type Binding: N/A (Digital) Paper Type Paper: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Code Example: BEX (1.8T), AVJ (1.8T), BFB (1.8T), ALT (2.0), AMB (2.0T), BBK (3.0) Engine Type Examples: Inline 4-cylinder Turbocharged (1.8T, 2.0), V6 (2.4, 3.0) Performance Hp Range Example: 170 hp (1.8T) to 220 hp (3.0) Torque Range Example: 165 lb-ft (1.8T) to 221 lb-ft (3.0) Fuel System Injection Type: Multi-point Fuel Injection (MPI) or Direct Injection (FSI on later models, but 2005 B6 primarily MPI/TFSI) Fuel Type: Unleaded Gasoline (Premium recommended/required) Engine Management ECU Type Example: Bosch Motronic or Simos 🔧 Transmission Standard Transmission Type Standard: 5-speed Manual Optional Transmission Type Optional: 5-speed Tiptronic Automatic (with Sport Mode) Features AWD Integration: Quattro system, Torsen center differential Fluid Specifications Manual Transmission Fluid: G 052 171 A2 (or equivalent synthetic SAE 75W-90 API GL-4/GL-5) Automatic Transmission Fluid: G 055 005 A2 (or equivalent ATF like JWS 3309 / T-IV) 📐 Dimensions Exterior Length Sedan: Approx. 178.5 inches Width Sedan: Approx. 69.2 inches Height Sedan: Approx. 56.1 inches Wheelbase: Approx. 104.2 inches Cargo Trunk Volume Sedan: Approx. 13.6 cubic feet Weights Curb Weight Range: Approx. 3200 - 3600 lbs (depending on drivetrain and engine) Wheels Tires Standard Tire Size Example: 205/55R16, 215/55R16, 235/45R17 Bolt Pattern: 5x112mm Center Bore: 57.1 mm 🛡️ Safety Features Ratings NHTSA Front Impact: 5 Stars NHTSA Side Impact: 5 Stars IIHS Frontal Offset: Good IIHS Side Impact: Good Active Features ABS: Standard Anti-lock Braking System Esp: Standard Electronic Stability Program (ESP) / Electronic Stabilization Program Traction Control: Standard Traction Control (ASR/EDL on FWD, integrated with ESP/Quattro) Passive Features Airbags Front: Dual front airbags Airbags Side: Standard front side-impact airbags Airbags Curtain: Optional or standard side curtain airbags (depending on trim/market) Seatbelts: 3-point inertia-reel seatbelts with pretensioners 💡 Technology Features Infotainment Head Unit Options: Concert, Symphony, or Chorus radios; optional Navigation Plus system. Audio System Options: Bose premium audio system available on some models. Driver Assistance Parking Sensors: Optional front and rear parking sensors (Parktronic). Cruise Control: Standard cruise control system. Connectivity Phone Integration: Optional Bluetooth hands-free interface (often dealer-installed or part of higher trims). Lighting Headlights: Halogen projector headlights; optional Xenon (HID) headlights with auto-leveling and washers. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 10,000 miles or 12 months, whichever comes first (under normal driving conditions, though some markets/engines may vary; refer to manual for specific interval). Timing Belt Interval: Varies by engine. The 3.0L V6 (BBK) uses a timing chain. The 1.8T and 2.0L engines use timing belts. Refer to manual for specific engine's replacement interval (often around 90,000-105,000 miles or 7-8 years). Spark Plug Replacement: Typically 60,000-100,000 miles depending on ignition system and plug type (e.g., long-life iridium). Fluid Specifications Coolant: G 12 Plus (Pink) or G 12 EVO (Purple) ethylene glycol-based coolant, mixed 50/50 with distilled water. Brake Fluid: DOT 4 (or DOT 4 Plus) low viscosity (LV) brake fluid. Power Steering Fluid: G 002 000 (or Pentosin CHF 11S, or equivalent hydraulic fluid). Engine Oil Capacity 1.8T: Approx. 4.4...