🏷️ Basic Information Identification Make: Audi Model: 80 / 90 Chassis Code: B3 Generation: Third Generation (Typ 89/8B) Generation Generation Years: 1986-1991 👋 Introduction Market Position Target Audience: Professional automotive technicians, independent repair shops, and advanced do-it-yourself enthusiasts with a foundational understanding of automotive mechanics and electrical systems. Competitive Analysis Value Proposition: Provides factory-level repair information in a readily accessible digital format, enabling efficient and accurate maintenance and repair for the Audi 80/90 B3, often surpassing the availability of physical manuals for this model year range. Key Features Feature 1: Step-by-step repair procedures with detailed instructions. Feature 2: Critical specifications, torque values, and tolerances. Feature 3: Illustrations, diagrams, and schematics to aid understanding. Feature 4: Comprehensive diagnostic information and troubleshooting guides. Feature 5: Maintenance schedules and fluid recommendations. 📋 Manual Details Coverage Areas Model Years Covered: 1986, 1987, 1988, 1989, 1990, 1991 Vehicle Types Covered: Sedan, Coupe (implied by '80/90' designation for this generation, though coupe might be specifically 80 Coupe) Page Count Estimated Page Count: Extensive (typical for factory-level repair manuals, likely 1000+ pages) Manual Type Manual Type: Repair Service Manual / Workshop Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine: Comprehensive overhaul and repair of all gasoline and diesel engines offered in the B3 chassis, including fuel injection systems (KE-Jetronic, Motronic), ignition systems, cooling systems, lubrication systems, exhaust systems, and emissions control. Transmission: Manual and automatic transmission repair, maintenance, clutch system service, driveshafts, CV joints, and differentials. Brakes: Front and rear brake systems (disc and drum configurations), ABS (if equipped), hydraulic lines, master cylinder, calipers, pads, rotors, and parking brake system. Steering: Power steering system diagnosis and repair, steering rack, tie rods, steering column, and alignment procedures. Suspension: Front and rear suspension components, shock absorbers, struts, control arms, ball joints, bushings, and wheel bearings. Electrical System: Complete wiring diagrams, fuse box layouts, battery and charging system, starter motor, alternator, lighting systems (headlights, taillights, interior), horn, wipers, power windows, central locking, and instrument cluster diagnostics. Body And Chassis: Body panel removal and installation, door mechanisms, interior trim, glass replacement, bumpers, corrosion protection, and chassis components. Heating Ventilation Air Conditioning: HVAC system diagnosis, blower motor, heater core, evaporator, refrigerant system, and climate control operation. Fuel System: Fuel tank, fuel pump, fuel lines, fuel filter, and fuel level sender unit diagnosis and replacement. Cooling System: Radiator, coolant hoses, thermostat, water pump, cooling fan, and heater core replacement and bleeding procedures. Procedures Included Maintenance: Routine maintenance tasks such as oil changes, filter replacements, spark plug service, brake fluid flushes, coolant changes, and belt inspections. Troubleshooting: Systematic diagnostic procedures for identifying and resolving common and complex mechanical and electrical issues, including symptom-based troubleshooting guides. Repair: Detailed step-by-step instructions for disassembling, repairing, cleaning, and reassembling all major vehicle components and systems. Installation: Guidance on installing new or replacement parts, accessories, and components. Technical Depth Depth Of Coverage: Comprehensive. Designed for professional technicians but accessible to skilled DIY mechanics. Covers everything from basic fluid changes to complete engine and transmission overhauls. 📊 Manual Specifications File Format File Format: PDF Print Quality Printability: Full Printable Navigation Zoom Functionality: YES Delivery Delivery Method: Instant Download Requirements Software Requirements: Adobe PDF Reader & WinZip Compatibility Operating Systems: All Versions of Windows & Mac ⚙️ Engine Specifications Primary Engine Common Engines: 1.6L, 1.8L, 2.0L, 2.3L (5-cylinder) gasoline engines; 1.6L, 1.9L diesel engines. Engine Variants Engine Codes Examples: e.g., JN (1.8L), KV (2.2L Coupe), NG (2.3L 5-cylinder), AAZ (1.9L TD) Performance Horsepower Range: Approx. 70 hp to 130 hp depending on engine variant. Torque Range: Approx. 120 Nm to 200 Nm depending on engine variant. Fuel System Fuel Delivery Types: Carbureted (early models), K-Jetronic (CIS) mechanical fuel injection, Motronic electronic fuel injection. Engine Management ECU Systems: Motronic variants (e.g., M2.3, M2.5) for injected engines, diagnostic capabilities for these ECUs. Engine Construction Block Material: Cast Iron Cylinder Head Material: Aluminum Alloy Engine Maintenance Timing Belt Replacement Interval: Typically 60,000 - 100,000 km (refer to manual for specific engine) 🔧 Transmission Standard Standard Transmission Types: 5-speed Manual Transmission Optional Optional Transmission Types: 3-speed or 4-speed Automatic Transmission (e.g., ZF 4HPxx series) Features Clutch Type: Dry single-plate clutch for manual transmissions. Maintenance Manual Transmission Fluid Type: API GL-4, SAE 75W-90 or 80W-90 gear oil. Automatic Transmission Fluid Type: Audi G 052 162 A1 (equivalent to ATF Dexron II or III compatible fluid, check manual for exact spec). 📐 Dimensions Exterior Wheelbase: Approx. 2610 mm Length: Approx. 4300-4400 mm (depending on sedan/coupe variant) Width: Approx. 1700 mm Height: Approx. 1390-1420 mm (depending on sedan/coupe variant) Weights Curb Weight: Approx. 1150-1350 kg (depending on engine and equipment) Gross Vehicle Weight Rating: Typically around 1700-1900 kg. Wheel Specifications Wheel Bolt Pattern: 4x108 Center Bore: 57.1 mm Tire Sizes: Commonly 185/60 R14, 195/60 R14, 205/55 R15 (check manual for specific fitment) 🛡️...