Segment:
Compact Executive Sedan/Wagon
Global Recognition:
The Audi 80/90 was a significant model for Audi in expanding its market share in Europe and North America, known for its sophisticated engineering and AWD capabilities.
Competitors:
BMW 3 Series, Mercedes-Benz 190E, Volvo 240/740, Ford Sierra, Opel Vectra.
Design Philosophy:
Quattro all-wheel-drive availability, advanced engineering for its era, solid build quality.
Target Audience:
Drivers seeking a well-built, refined, and capable European vehicle, often with a focus on safety and performance.
Powertrain:
Engine diagnostics, maintenance, repair for gasoline and diesel engines; clutch, gearbox, drivetrain, axle maintenance and repair.
Chassis:
Suspension, steering, brakes (hydraulic and mechanical components), wheel alignment.
Electrical:
Engine management systems, ignition, fuel injection, lighting, instrumentation, comfort systems, wiring diagrams.
Bodywork:
Body repair, collision damage, interior trim, exterior components, glass, seals.
Comfort Systems:
Heating, ventilation, air conditioning (HVAC) system operation, maintenance, and common repair procedures.
Instrumentation And Controls:
Detailed explanation of dashboard layout, warning lights, gauges, and control functions.
Maintenance:
Scheduled maintenance, fluid changes, filter replacements, spark plug service, belt replacement.
Diagnostics:
Troubleshooting guides, fault code interpretation (for applicable systems), diagnostic procedures for various components.
Repair:
Component disassembly, repair, reassembly, component replacement procedures.
Technical Specifications:
Torque specifications, clearances, adjustments, fluid capacities, electrical schematics.
Assembly Disassembly:
Detailed step-by-step instructions for the removal and installation of most vehicle components, including engine, transmission, suspension parts, and interior/exterior trim.
Cleaning:
Procedures for cleaning specific components during maintenance or repair to ensure proper function and prevent contamination.
Troubleshooting Guides:
Systematic approach to diagnosing common problems, often presented in a 'symptom-cause-solution' format.
Depth:
Comprehensive, covering routine maintenance to major overhauls and diagnostics.
Wiring Diagrams:
Comprehensive electrical schematics and wiring diagrams for all major systems, crucial for electrical troubleshooting.
Searchability:
PDF format typically allows for text searching, greatly enhancing the user's ability to find specific information quickly.
Printability:
Printable by section or in full, allows for high-quality hard copy.
Image Quality:
Diagrams and illustrations are generally of sufficient quality for clear interpretation when printed.
Binding Suggestion:
For printed versions, spiral binding is recommended for lay-flat usability.
Digital Format Advantage:
Instant access and ability to search specific terms or sections without needing a physical index.
Paper Recommendation:
Standard copier paper is suitable for printing; consider heavier stock for frequent use.
Engine Options:
Inline-4 (1.6L, 1.8L, 2.0L), Inline-5 (2.2L, 2.3L). Turbocharged variants available (e.g., 200hp 2.2L Turbo).
Horsepower Range:
Approximately 70 hp to 165 hp (naturally aspirated), up to 200 hp (turbocharged).
Torque Figures:
Ranges from approximately 120 Nm to over 250 Nm depending on engine displacement and configuration.
Injection Type:
Typically Bosch K-Jetronic or KE-Jetronic (CIS-E) mechanical fuel injection; later models may feature electronic fuel injection (EFI).
Engine Codes:
Examples: JN (1.6), PM (1.8), RP (1.8), RU (1.8), JN (1.8), KV (2.2E), NG (2.3E), WY (2.2 Turbo).
Engine Configurations:
Inline-4 and Inline-5 cylinder configurations. Longitudinal engine mounting.
Body Styles:
4-door Sedan, 5-door Avant (Wagon).
Wheelbase:
Approximately 2500-2550 mm depending on specific model variant.
Overall Length:
Approximately 4400-4500 mm.
Wheel Size:
Commonly 14-inch or 15-inch wheels, with 15-inch and 16-inch optional or on higher trims/Quattro.
Curb Weight Range:
Approximately 1150 kg to 1450 kg depending on engine and drivetrain.
Gross Vehicle Weight Rating:
Typically around 1700-1900 kg.
Towing Capacity:
Varies by market and engine; refer to vehicle-specific documentation or VIN plate.
Payload Capacity:
Varies by model; refer to VIN plate or manual for specific figures.
Crash Test Data:
While official Euro NCAP or NHTSA ratings for this specific era are scarce, the B3 chassis was known for its robust construction and safety features for its time.
Braking System:
Front ventilated discs, rear drums (standard); Rear discs optional on higher trims and Quattro models.
Restraints:
Seatbelts, optional driver's side airbag on later models.
Construction:
Unitary body construction with crumple zones.
Audio System:
Factory fitted radios often cassette-based, with optional CD players on later models. Speaker systems varied by trim level.
ABS:
Anti-lock Braking System (ABS) available as an option, particularly on Quattro models and higher trim levels.
Early Features:
Focus on core mechanical and electrical systems rather than advanced digital connectivity prevalent in modern vehicles.
Oil Change Interval:
Typically 5,000-7,500 miles (8,000-12,000 km) or 6-12 months, depending on driving conditions and oil type.
Timing Belt Interval:
Around 50,000-70,000 miles (80,000-110,000 km) for most gasoline engines; crucial to replace to prevent catastrophic engine damage.
Spark Plug Replacement:
Typically every 20,000-30,000 miles (32,000-48,000 km) for standard spark plugs. Platinum or iridium plugs may have longer intervals.
Engine Oil:
API SG or SH, SAE 10W-40 or 15W-40 (check specific engine for optimal viscosity, e.g., 5W-40 for colder climates).
Coolant:
G11 (blue) or G12 (pink/red) coolant mixed 50/50 with distilled water. Check for specific compatibility.
Transmission Fluid:
Manual: GL-4 75W-90 or 80W-90 gear oil. Automatic: ATF Dexron II or III (check specific transmission type).
Brake Fluid:
DOT 3 or DOT 4.
Power Steering Fluid:
Typically ATF Dexron II/III or a specific Pentosin CHF 11S for some hydraulic systems. Always verify with manual.
Common Problems:
Cooling system leaks (radiator, hoses, water pump), fuel distributor diaphragm issues (K-Jetronic), seized caliper pistons, worn front control arm bushings, electrical gremlins (especially older wiring), exhaust manifold cracks (5-cylinder).
Maintenance Tips:
Regularly inspect and replace vacuum hoses, maintain the cooling system diligently, clean the battery terminals, and listen for any unusual engine or transmission noises.
Rust Susceptibility:
Like many cars of this era, can be susceptible to rust, especially in common areas like wheel arches, sills, and around the windscreen. Regular inspection is key.
Audi Legacy:
Audi's reputation for engineering excellence and quality construction.
B3 Development:
The B3 platform represented a significant step forward from its predecessor (Type 85), featuring improved aerodynamics, updated suspension, and enhanced safety.
Successor Model:
The B3 generation paved the way for the Audi 80/A4 (B4/8D chassis) starting in 1991/1994.
Manufacturing Locations:
Ingolstadt, Germany; various CKD (Completely Knocked Down) assembly plants worldwide.
Production Period:
1986-1991
