🏷️ Basic Information Identification Make: Audi Model: 90 B3 Production Years Covered: 1986, 1987, 1988, 1989, 1990, 1991 Codes Chassis Code: Typ 89/8A (B3) 👋 Introduction Market Position Target Audience: Do-it-yourself enthusiasts and professional mechanics seeking comprehensive repair and maintenance information for the Audi 90 B3. Competitive Analysis Advantages Over Print: Less expensive than traditional paper manuals, convenient digital format, accessible on multiple devices, searchable content, no wear and tear from physical use. Key Features Content Highlight: Official full factory service repair manual, comprehensive coverage of all styles, step-by-step instructions with illustrations. 📋 Manual Details Coverage Areas Documentation Scope: Complete factory service and repair information for all styles of the Audi 90 B3. Page Count Estimated Pages: Hundreds (exact count not specified, but described as comprehensive). Manual Type Type: Factory Service Repair Manual / Workshop Manual Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Mechanical Systems: Engine Service/Repair, Transmission Service/Repair, Brake System, Suspension, Steering, Cooling System, Fuel Injection, Fuel System, Emission System, Differential/Drive, Axle, Chassis/Body, Heater/Air Conditioning. Electrical Systems: Electrical System, Wiring Diagrams, Engine Control System, Restraint System (Airbags/Seatbelts). Procedures Included Diagnostic And Repair: Troubleshooting, complete disassembly and reassembly procedures, component repair and replacement, diagnostics. Maintenance And Routine: General Maintenance, Periodic Lubrication, Fluid Changes, Tune-ups. Technical Depth Level Of Detail: Step-by-step instructions with hundreds of photos and illustrations, suitable for both DIYers and experienced mechanics. Covers complete vehicle disassembly. 📊 Manual Specifications File Format Software Requirements: Adobe PDF Reader (free), Winzip (free) Print Quality Printability: Fully printable, allowing users to print entire manual or specific pages. Binding Type Binding Type: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Options: Likely includes the Audi 2.3L 5-cylinder (NG engine code) and potentially other variants depending on market. Manual covers ALL STYLES. Performance Typical Horsepower Range: Around 130-136 hp for the 2.3L 5-cylinder engine, depending on specific tune and market. Fuel System Injection System: Fuel Injection (specifics like Bosch KE-Jetronic or Motronic likely detailed in manual). 🔧 Transmission Standard Transmission Type: Likely offered with both manual and automatic transmissions. Manual provides coverage for both. Optional Optional Transmission: Audi's quattro all-wheel-drive system was a significant option for the Audi 90 B3, especially with larger engines. Features Gearbox Coverage: Service and repair information for transmission systems including clutch, gearbox, and drivetrain components. 📐 Dimensions Exterior Body Styles: Primarily sedan (Saloon/Limousine), also potentially coupe variants depending on market specific designation for the '90' model. Weights Curb Weight: Curb weight typically ranged from approximately 1250-1400 kg, depending on engine and drivetrain. 🛡️ Safety Features Ratings Crash Test Data: Specific crash test ratings for this era are less standardized than modern vehicles; manual may detail structural integrity and safety features relevant to occupant protection. Active Features Braking System: Front disc brakes, rear drum or disc brakes depending on model/trim. ABS (Anti-lock Braking System) was often an option. Passive Features Restraint Systems: Seat belts, potentially early airbag systems in later models or higher trims. Manual covers the Restraint System. 💡 Technology Features Infotainment Audio System: Basic AM/FM radio with cassette player, optional CD player in later models or higher trims. Manual covers dashboard disassembly for access. Driver Assistance ABS Availability: Anti-lock Braking System (ABS) was an available option and is covered within the brake system section of the manual. Connectivity N/A: Connectivity features are minimal by modern standards; manual may cover basic diagnostic port access if applicable. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 5,000-7,500 miles (8,000-12,000 km) or 6-12 months, depending on driving conditions. Manual will provide precise specifications. Fluid Specifications Engine Oil Type: Likely requiring synthetic or semi-synthetic oils, such as 5W-40 or 10W-40, dependent on ambient temperature. Manual will list specific VW/Audi specifications (e.g., VW 500.00, VW 501.01). Coolant Type: G11 (blue/green) antifreeze/coolant. Manual will specify correct type and mixture ratio. Known Issues Common Problems: Potential issues can include aging electrical components, vacuum hose deterioration, catalytic converter issues, cooling system leaks (especially hoses and water pump), and clutch wear. The manual provides solutions for these. 📚 Vehicle History Brand Heritage Audi Philosophy: Audi's reputation for engineering, quality interiors, and advanced (for the time) technology, often setting benchmarks in the premium segment. Model Evolution B3 Generation: The B3 generation (Typ 89/8A) marked a significant redesign for Audi, featuring more aerodynamic styling and a focus on improved safety and comfort compared to its predecessors. The '90' designation often indicated a higher trim level or more powerful engine variant within the Audi 80/90 family. Production Manufacturing Location: Audi vehicles of this era were primarily manufactured in Germany.