🏷️ Basic Information Identification Make: Audi Model: 100 Generation Code: C3 Production Years Covered: 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991 👋 Introduction Market Position Segment: Executive/Mid-size Luxury Sedan and Wagon Positioning: Audi positioned itself as a premium German manufacturer, offering advanced technology and sophisticated design in its segment. Competitive Analysis Key Competitors: BMW 5 Series, Mercedes-Benz E-Class, Volvo 700 Series, Saab 9000 Key Features Design: Aerodynamic 'jelly bean' styling, advanced galvanized steel body for corrosion resistance, Quattro all-wheel-drive availability. Technology: Procon-ten passive safety system (precursor to airbags), electronic climate control, advanced engine management systems. 📋 Manual Details Coverage Areas Primary Coverage: Workshop Service Repair Engine Variants Covered: Multiple (includes gasoline, potential diesel variants if applicable for the period) Body Styles Covered: Sedan, Avant (Wagon) Page Count Estimated Pages: Hundreds (specific count not provided, but implies comprehensive coverage) Manual Type Type: Factory Service Manual / Workshop Manual Language Language: English (assumed for this market) Format Format: Downloadable Digital File (likely PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, fuel system, ignition system, exhaust system, cooling system, lubrication system Drivetrain: Transmission (manual and automatic), clutch, drive shafts, differentials, axles Chassis: Suspension (front and rear), steering system, braking system, wheels and tires Electrical: Battery, charging system, starting system, lighting, instruments, warning indicators, infotainment systems, wiring diagrams Body And Interior: Body construction, exterior panels, doors, windows, seats, trim, HVAC (Heating, Ventilation, and Air Conditioning) Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, lubrication Diagnostics: Troubleshooting guides, symptom-to-cause analysis, diagnostic codes (OBD-I if applicable) Repair: Component removal, installation, overhaul, and adjustment procedures Specifications: Torque values, clearances, fluid capacities, electrical resistance values Technical Depth Depth: Comprehensive factory-level detail, suitable for professional technicians and experienced DIYers. 📊 Manual Specifications File Format Format: PDF (Portable Document Format) is standard for digital downloads. Searchability: Likely includes text-searchable capabilities for efficient information retrieval. Print Quality Quality: High-resolution scans ensuring clarity of diagrams, text, and images. Binding Type Type: N/A (for digital download) Paper Type Type: N/A (for digital download) ⚙️ Engine Specifications Primary Engine Engine Code Examples: WX (2.2L 5-cylinder Turbo), JT (2.3L 5-cylinder Naturally Aspirated), NF (2.0L 4-cylinder Naturally Aspirated) Performance Horsepower Range: Approximately 110-165 hp (depending on engine and turbocharging) Torque Range: Approximately 180-250 Nm (depending on engine and turbocharging) Fuel System Injection Type: Bosch K-Jetronic (CIS) or Bosch KE-Jetronic (CIS-E) mechanical fuel injection, potentially Bosch Motronic electronic fuel injection on later models. Displacement Common Displacements: 2.0L (4-cylinder), 2.2L (5-cylinder), 2.3L (5-cylinder) Cylinder Count Count: 4-cylinder and 5-cylinder inline engines Turbocharging Availability: Available on 2.2L variants (e.g., Audi 100 CS Turbo). 🔧 Transmission Standard Type: 5-speed Manual Transmission Optional Type: 3-speed or 4-speed Automatic Transmission (e.g., ZF 4HP22) Features Drivetrain Options: Front-wheel drive (FWD) and Audi's permanent All-wheel drive (Quattro). Fluid Specifications Manual Transmission Fluid: GL-4 Gear Oil, typically SAE 75W-90 or 80W-90 (refer to specific manual for exact spec). Automatic Transmission Fluid: Dexron II or equivalent (check specific model year and transmission type for exact specification). 📐 Dimensions Exterior Length: Approximately 4750-4800 mm (Sedan) Width: Approximately 1775 mm Height: Approximately 1410-1420 mm (Sedan) Wheelbase: Approximately 2610 mm Weights Curb Weight: Approximately 1300-1500 kg (depending on engine and options) Gross Vehicle Weight Rating: Varies by model, typically around 1900-2100 kg 🛡️ Safety Features Ratings Crash Test Performance: While official NHTSA/Euro NCAP ratings from this era are less comprehensive, the C3 generation was noted for its robust body structure and early adoption of safety innovations. Active Features Braking System: Front ventilated discs, rear discs. ABS (Anti-lock Braking System) became available on later models and higher trims. Steering System: Power assisted rack and pinion Passive Features Body Structure: Galvanized steel unibody construction for enhanced corrosion resistance and structural integrity. Restraint System: Seat belts. Introduction of Audi's 'Procon-ten' system (Projectile Control) as a passive restraint system, a precursor to airbags, designed to tighten seat belts in a collision. 💡 Technology Features Infotainment Audio System: Factory AM/FM radio with cassette player, often with premium sound system options and amplifier. Driver Assistance ABS: Available on higher trims and later models. Cruise Control: Commonly available as an option or standard on higher trims. Connectivity Early Features: Basic power accessories, central locking, electronic climate control (ECC) on premium models. 🔧 Maintenance Service Intervals Oil Change: Typically every 5,000-10,000 miles or 12 months, depending on driving conditions and oil used (refer to specific manual). Timing Belt: Critical replacement interval for 5-cylinder engines, often around 60,000-80,000 miles or 5-7 years. Failure can cause catastrophic engine damage. (Confirm exact interval in manual). Spark Plugs: Typically at 30,000-60,000 miles depending on plug type (e.g., copper, platinum). Coolant Flush: Every 2-3 years or 30,000 miles. Fluid Specifications Engine Oil Type: API SG/SH or higher, Viscosity SAE 5W-30, 5W-40, or 10W-40 depending on climate and engine wear (refer to manual). Engine Oil Capacity: Approximately 4.0...