🏷️ Basic Information Identification Make: Audi Model: 80 Model Code: B3-89 Year: 1991 Codes Chassis Code: Typ 89 👋 Introduction Market Position Vehicle Segment: Compact executive car, positioned as Audi's entry-level sedan/coupe/wagon. Competitive Analysis Competitors: BMW 3 Series (E30), Mercedes-Benz 190 (W201), Volkswagen Passat (B3), Ford Sierra. Key Features Audi Philosophy: Emphasized Quattro all-wheel drive (optional on many models), build quality, and refined engineering typical of Audi. 📋 Manual Details Coverage Areas Models Covered: All models of 1991 Audi 80 (B3-89) Page Count Total Pages: 2000+/- Manual Type Type: Factory Service and Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Mechanical Engine: Included (e.g., engine overhaul, timing belt replacement, fuel injection system) Transmission: Included (manual and automatic, clutch, gearbox service) Brakes: Included (disc and drum brakes, ABS systems if applicable, hydraulic components) Steering: Included (power steering system, steering column, tie rod ends) Suspension: Included (front and rear suspension, shock absorbers, springs, bushings) Driveline Axle: Included (front-wheel drive components, CV joints, driveshafts) Electrical: Included (starter, alternator, battery, ignition system, sensors) Lights: Included (headlights, taillights, interior lighting, wiring) Restraints: Included (seat belts, airbag systems if applicable) Body Frame Interior Exterior: Included (body panel removal, interior trim, doors, windows, seals) HVAC: Included (heating, ventilation, air conditioning system service) Audio Visual Telematics: Included (audio system removal, wiring) Accessories Equipment: Included (various accessory installations and repairs) Tires Wheels: Included (wheel alignment, tire replacement, balancing) Wiring Diagrams: Included (comprehensive electrical schematics) Procedures Included Maintenance: Included (routine checks, fluid changes, filter replacements) Troubleshooting: Included (diagnostic procedures for common faults) Repair: Included (step-by-step repair instructions for all major systems) Overhaul: Included (detailed procedures for engine and transmission overhauls) Replacement: Included (replacement of components like timing belts, alternators, brake pads) Adjustment: Included (e.g., carburetor adjustment, ignition timing) Diagnostics: Included (fault finding, error code interpretation) Fuel System Service: Included (diagnosis and repair of K-Jetronic/KE-Jetronic systems, injectors, fuel pumps, pressure regulators). Emission Control: Included (diagnosis and repair of emission control components, catalytic converter system). Body Repair: Included (procedures for repairing body panels, doors, windows, bumpers, and interior trim). Climate Control Repair: Included (diagnosing and repairing A/C system, heater core, blower motor, controls). Electrical Diagnostics: Included (troubleshooting electrical circuits using wiring diagrams, component testing). Wheel Alignment: Included (specifications and procedures for front and rear wheel alignment). Torque Specifications: Included (essential torque values for engine, chassis, and driveline components). Technical Depth Depth: Comprehensive factory-level coverage, suitable for professional technicians and advanced DIYers. Diagnostic Tools: While not explicitly listing tools, the manual's detail implies the use of standard automotive diagnostic tools (multimeter, pressure gauges, etc.). 📊 Manual Specifications File Format Digital Format: PDF Print Quality Printable: Yes, printable in its entirety or by selected pages. Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Searchability Search Capability: Fully searchable text Compatibility Operating Systems: Windows and Mac Requirements Software Requirements: Adobe PDF Reader and/or WinRar ⚙️ Engine Specifications Primary Engine Engine Options: Likely included 1.6L, 1.8L, 2.0L inline-4, and 2.3L inline-5 cylinder engines. Specific engine codes will be detailed within the manual (e.g., PM, 3A, NG, KV). Performance Horsepower Range: Approx. 75 HP to 137 HP, depending on engine variant. Torque Range: Approx. 120 Nm to 200 Nm, depending on engine variant. Fuel System Fuel Delivery: Bosch K-Jetronic (CIS) or KE-Jetronic (CIS-E) mechanical fuel injection, and potentially early electronic fuel injection (EFI) systems for 2.0L and 2.3L engines. Engine Layout Configuration: Transverse inline-4 and inline-5 cylinder engines. Displacement Range: 1.6L (1595cc) to 2.3L (2309cc). Ignition System Ignition Type: Electronic ignition with distributor. Cooling System Cooling Type: Liquid-cooled, pressurized system with fan. Engine Codes Common Codes B3: For the 1991 model year, common engine codes include 1.6L (EZ, PP), 1.8L (PM, RP), 2.0L (AAL, ABK), and the 2.3L 5-cylinder (NG, KV) for Quattro models. 🔧 Transmission Standard Manual Transmission: Likely 4-speed or 5-speed manual transmission. Optional Automatic Transmission: Optional 3-speed or 4-speed automatic transmission. Features Drive Type: Front-Wheel Drive (FWD) standard, with optional Quattro All-Wheel Drive (AWD). Fluid Specifications Automatic Transmission Fluid: G009300 or equivalent Dexron II/III type fluid (check specific vehicle VIN). Manual Transmission Fluid: G052171 or equivalent GL-4 gear oil (e.g., SAE 75W-90). 📐 Dimensions Exterior Body Styles: Sedan (Saloon), Coupe, Avant (Wagon). Weights Curb Weight: Varies by model and engine, typically ranging from 1100 kg to 1350 kg. 🛡️ Safety Features Ratings Crash Test Data: Limited public data for this era; manual will detail safety system construction and repair. Active Features Braking System: Front ventilated discs, rear discs or drums. ABS was optional on higher trims/engines. Passive Features Restraint System: 3-point seat belts with pre-tensioners (front), manual lap belts (rear). Airbags were not standard for this model year. 💡 Technology Features Infotainment Audio System: Factory fitted radio/cassette players. Manual covers removal, installation, and wiring for these units. Driver Assistance ABS: Optional Anti-lock Braking System...