🏷️ Basic Information Identification Make: Audi Model: 100 Model Designation: Audi 100 C4 Year: 1994 Codes Chassis Code: 4A5 Engine Codes: AAF, ABC, ACZ, AAT, ABF (V6 gasoline), AEL (TDI diesel) 👋 Introduction Market Position Segment: Executive Sedan/Wagon (mid-size luxury) Target Audience: Owners seeking to perform DIY maintenance and repairs, independent repair shops Competitive Analysis Key Competitors: BMW 5 Series, Mercedes-Benz E-Class, Volvo 900 Series, Lexus ES Key Features Of Vehicle Platform: Audi Type 44 (C4 platform) Body Styles: 4-door Sedan, 5-door Avant (Wagon) Design Philosophy: Understated luxury, advanced engineering, excellent build quality 📋 Manual Details Coverage Areas Primary Coverage: North American Market (likely, confirm with specific product) Regional Variants: Includes specifications and procedures relevant to North American versions Page Count Estimated Page Count: Likely 1000+ pages (based on 'hundreds of pages' and factory completeness) Manual Type Type: Full Factory Service and Repair Manual Language Language: English Format Format: Digital Download (printable) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine overhaul, component testing, cylinder head, pistons, crankshaft, camshaft, timing, lubrication, cooling system Engine Management: Fuel injection systems (MPI), ignition systems, engine control module (ECM) diagnostics and repair, emission controls Transmission Manual: Manual transmission overhaul, clutch system, shift linkage Transmission Automatic: Automatic transmission overhaul (e.g., 01F/01W), hydraulic control, torque converter, electronic control Drivetrain: Front-wheel drive (FWD), Quattro all-wheel drive (AWD) system diagnosis and repair, drive shafts, CV joints, differentials Suspension: Front and rear suspension systems, shock absorbers, struts, control arms, bushings, wheel alignment specifications Brakes: Brake system components (calipers, rotors, pads), ABS (Anti-lock Braking System) diagnosis and repair, hydraulic lines, parking brake Steering: Power steering system, steering rack, steering column, hydraulic pump Electrical System: Battery, charging system (alternator), starting system (starter), lighting systems, fuses, relays, wiring diagrams, diagnostic connectors Body And Interior: Body panel removal and installation, door mechanisms, glass, interior trim, seats, HVAC system (heating, ventilation, and air conditioning) Chassis And Frame: Frame components, body structural integrity Procedures Included Maintenance: Oil changes, filter replacements, spark plug replacement, belt tensioning, fluid checks and top-offs Troubleshooting: Diagnostic procedures for common and uncommon faults, fault code interpretation, symptom-based diagnostics Repair: Step-by-step repair instructions for all major mechanical and electrical components, including component replacement and adjustment Overhaul: Complete engine and transmission rebuild procedures Diagnostics: Detailed diagnostic flowcharts and tables for identifying and rectifying issues Specifications: Torque specifications, clearances, tolerances, and alignment data for all adjustable components Technical Depth Depth: Comprehensive, from basic maintenance to full engine/transmission rebuilds and advanced electrical diagnostics Detail Level: Factory-level detail with explicit instructions, diagrams, and specifications 📊 Manual Specifications File Format Format: PDF (Portable Document Format) Print Quality Quality: High resolution, suitable for printing individual pages or the entire manual Binding Type Binding Recommendation: Digital format allows for user-preferred binding (e.g., spiral-bound, three-hole punched) Paper Type Print Paper Recommendation: Standard office paper; heavier stock recommended for frequently used sections ⚙️ Engine Specifications Primary Engine Engine Options Gasoline: 2.6L V6 (AAF, ABC), 2.8L V6 (ACZ, ABF) Engine Options Diesel: 2.5L TDI I5 (AEL) Performance 2 6L V6 Horsepower: 138-150 hp (depending on specific engine code and market) 2 8L V6 Horsepower: 172-178 hp (depending on specific engine code and market) 2 5L Tdi I5 Horsepower: 114 hp 2 8L V6 Torque: 170-177 lb-ft Fuel System Fuel Injection: Bosch Motronic electronic fuel injection (EFI) Fuel Type: Unleaded gasoline (for V6 engines), Diesel fuel (for TDI engine) Engine Management Ignition Type: Distributorless ignition system (DIS) on some V6 models Emissions Control: Catalytic converter, secondary air injection, EVAP system 🔧 Transmission Standard Manual Transmission Type: 5-speed manual (e.g., 01A) Optional Automatic Transmission Type: 4-speed automatic (e.g., 01F, 01W) Features Drivetrain Options: Front-wheel drive (FWD) or Audi Quattro all-wheel drive (AWD) Fluid Specifications Automatic Transmission Fluid: G 052 162 A2 (or equivalent Dexron III/Mercon) Manual Transmission Fluid: G 052 171 A2 (or equivalent SAE 75W-90 GL-4) 📐 Dimensions Exterior Wheelbase: 109.1 inches (2770 mm) Length Sedan: 191.1 inches (4855 mm) Length Avant: 190.5 inches (4838 mm) Width: 70.5 inches (1790 mm) Height Sedan: 55.1 inches (1400 mm) Height Avant: 55.0 inches (1397 mm) Cargo Cargo Volume Sedan: Approximately 16.0 cubic feet Cargo Volume Avant: Approximately 21.0 - 62.0 cubic feet (with rear seats folded) Weights Curb Weight Approx Fw: 3300-3600 lbs (depending on engine and drivetrain) Curb Weight Approx Quattro: 3500-3800 lbs (depending on engine) Wheels And Tires Standard Wheel Size: 15 or 16 inch alloy wheels Wheel Bolt Pattern: 5x112mm Standard Tire Size: 205/60R15, 215/55R16 🛡️ Safety Features Ratings NHTSA Front Impact Driver: Not rated for this year, but generally considered safe for its era IIHS Crash Test Ratings: Not specifically rated for this year. Active Features ABS: Standard on most models Traction Control: Optional (ASR - Anti-Slip Regulation) Passive Features Airbags: Driver's airbag standard; Passenger airbag optional Seatbelts: 3-point inertia-reel seatbelts with pre-tensioners (front) Child Seat Anchors: ISOFIX/LATCH system not standard, but...