🏷️ Basic Information

Make:

Audi

Model:

80/90

Model Code:

Typ 81/85 (B2 platform), Typ 89/90 (B3 platform)

Production Years:

1986-1991

Market Segment:

Compact Executive / Small Family Car

Chassis Codes:

Typ 81, Typ 85, Typ 89, Typ 90

👋 Introduction

Positioning:

The Audi 80/90 series represented Audi's entry into the compact executive segment, competing with established German and European rivals. Known for its build quality, refined interiors, and often Quattro all-wheel-drive options.

Competitors:

Primary competitors included the BMW 3 Series, Mercedes-Benz 190 (W201), and Volvo 240/740 series. The 80/90 offered a distinct blend of technology and understated luxury.

Highlights:

Known for its 'Procon-Ten' safety system (a pre-tensioning system for seatbelts triggered by deceleration), Quattro all-wheel drive availability on select models, aerodynamic styling (especially the B3 generation), and durable build.

📋 Manual Details

Covered Models:

All Audi 80 and 90 models from 1986 to 1991, including various body styles (Saloon/Sedan, Avant/Wagon) and engine variants.

Approximate Page Count:

Hundreds of pages (specific count not provided, but described as comprehensive).

Type:

Full Factory Service & Repair Manual

Language:

English

Format:

PDF

Delivery Method:

Instant Download

Printable:

Yes

Searchable:

Fully Searchable

Operating Systems:

Windows and Mac

Software Requirements:

Adobe PDF Reader and/or WinRar

📖 Manual Coverage

Engine Mechanical:

Detailed coverage of internal combustion engines, including disassembly, assembly, component testing, torque specifications, and overhaul procedures for various engine variants.

Transmission:

Manual and automatic transmission repair, servicing, fluid specifications, gear train diagnostics, clutch operation, and driveline component maintenance.

Brakes:

Hydraulic system diagnostics, disc and drum brake servicing, ABS (where applicable) troubleshooting, component replacement, bleeding procedures, and specifications.

Electrical:

Comprehensive electrical system diagrams, component testing, troubleshooting for ignition, starting, charging systems, lighting, instrumentation, and accessories.

Steering:

Power steering system maintenance, rack and pinion repair, steering column adjustments, alignment procedures, and component wear assessment.

Suspension:

Front and rear suspension component inspection, replacement of struts, shocks, control arms, bushings, wheel bearing servicing, and alignment procedures.

Body Frame:

Body panel repair, rust prevention, structural integrity checks, interior trim removal and installation, exterior component replacement (bumpers, lights, mirrors).

HVAC:

Heating, ventilation, and air conditioning system service, refrigerant handling, component diagnostics, blower motor replacement, and cabin filter service.

Lights:

Headlight, taillight, interior lighting, and signal lamp troubleshooting, bulb replacement, and wiring for the lighting system.

Restraints:

Seatbelt mechanisms, airbag system diagnostics (if equipped), and related safety component information.

Audio Visual Telematics:

Information on factory radio systems, speaker replacement, antenna systems, and basic telematics if applicable to the era.

Accessories Equipment:

Details on factory-installed accessories such as sunroofs, power windows, central locking, and other electrical conveniences.

Tires Wheels:

Tire pressure recommendations, wheel specifications, lug nut torque, and wheel bearing service.

Maintenance:

Scheduled maintenance intervals, fluid changes (oil, coolant, brake fluid, transmission fluid), filter replacements, spark plug service, and lubrication points.

Troubleshooting:

Systematic diagnostic procedures for common and uncommon issues, fault code interpretation (if applicable), and symptom-based troubleshooting guides.

Repair:

Step-by-step instructions for component removal, repair, and reinstallation across all major vehicle systems.

Diagnostics:

In-depth diagnostic strategies for mechanical and electrical faults, including testing methods and expected readings.

Overhaul:

Detailed procedures for complete engine and transmission rebuilds, including component clearances and specifications.

Wiring Diagrams:

Comprehensive, color-coded wiring diagrams for all electrical systems, crucial for electrical diagnostics and repair.

Depth:

Factory-level technical information, suitable for professional mechanics and advanced DIY enthusiasts. Covers everything from basic maintenance to complete engine and transmission overhauls.

📊 Manual Specifications

File Type:

PDF

Search Functionality:

Full text search enabled for quick access to specific information.

Printability:

Printable pages allow for physical copies of specific sections or the entire manual.

Binding:

N/A (Digital Download)

Paper Quality:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Options:

Covered engines include 1.6L, 1.8L, 2.0L, 2.2L, and 2.3L inline-four and inline-five cylinder gasoline engines. Diesel variants (e.g., 1.6 TD) may also be covered depending on regional specifics.

Power Range:

Horsepower typically ranged from 75 hp to 137 hp, with performance variants (e.g., Audi 90) offering more potent engines.

Induction:

Carbureted and Bosch CIS-Jetronic fuel injection systems were common during this period.

🔧 Transmission

Manual Transmission:

5-speed manual transmissions were standard on many models.

Automatic Transmission:

3-speed and 4-speed automatic transmissions were optional.

Drivetrain:

Front-wheel drive was standard; Audi's renowned Quattro permanent all-wheel drive system was available on many 2.0L, 2.2L, and 2.3L engine variants.

📐 Dimensions

Body Styles:

Offered as a 2-door coupe, 4-door saloon (sedan), and 5-door Avant (station wagon).

Curb Weight Range:

Approximately 2,400 - 2,900 lbs (1,090 - 1,315 kg) depending on model and equipment.

🛡️ Safety Features

Crash Test Data:

Contemporary safety standards were high for the era, with structural integrity being a hallmark of German engineering. Specific NHTSA/Euro NCAP ratings for this period are not directly comparable to modern standards but reflect advancements in passive safety.

Active Safety:

Anti-lock Braking System (ABS) was an option on higher trims. Good chassis balance and handling were key active safety features.

Passive Safety:

Procon-Ten seatbelt pre-tensioning system, reinforced safety cage construction, energy-absorbing bumpers, and driver/front passenger airbags (later models).

💡 Technology Features

Audio System:

Factory AM/FM radios with cassette players were standard. Higher trims might have premium speaker systems. The manual will detail radio removal and wiring.

Advanced Features:

ABS and the Procon-Ten system were the primary advanced safety technologies. Cruise control was an option on some models.

Early Features:

Basic functionality with factory-installed audio systems. No modern Bluetooth or infotainment connectivity.

🔧 Maintenance

Oil Change Interval:

Typically every 5,000-7,500 miles (8,000-12,000 km) or annually, depending on driving conditions and oil type specified in the manual.

Timing Belt Interval:

Crucial interval for many engines (e.g., 2.0L, 2.3L 5-cylinder). Typically 60,000 miles (96,000 km) or 4 years. Failure leads to catastrophic engine damage.

Engine Oil Type:

Consult manual for specific viscosity (e.g., 10W-40, 15W-40) and API/ACEA specifications based on engine and climate. Synthetic oils are recommended for modern performance.

Coolant Type:

Ethylene glycol-based antifreeze/coolant, typically a 50/50 mix with distilled water. Specific Audi G11 or equivalent recommended.

Transmission Fluid Type Auto:

ATF Dexron II or equivalent, check manual for exact specification.

Brake Fluid Type:

DOT 3 or DOT 4 brake fluid.

Common Problems:

Common issues can include aging electrical components (relays, switches), fuel system issues (fuel pumps, injectors), coolant leaks (especially from plastic components and hoses), seized brake calipers, and worn suspension bushings. Timing belt failure is a critical concern. Rust can affect wheel wells, sills, and door bottoms.

Specific Component Failures:

Distributor O-rings, various vacuum hose failures, window regulator mechanisms, and door lock actuators can be prone to wear.

📚 Vehicle History

Audi Legacy:

Audi's history of engineering innovation, including the Quattro system, laid the groundwork for the performance and technology offered in the 80/90 series.

B2 To B3 Transition:

The 1986-1991 period covers the transition from the Typ 81/85 (B2 platform, introduced in 1978) to the significantly redesigned Typ 89/90 (B3 platform, introduced in 1986/1987). The B3 featured a more aerodynamic design and a torsion bar front suspension.

Manufacturing Locations:

Primarily manufactured in Ingolstadt and Neckarsulm, Germany.

🏆 Awards & Recognition

Industry Acclaim:

The Audi 80/90 series, particularly the B3 generation, received positive reviews for its refined chassis, comfortable ride, and advanced safety features for its time. It helped solidify Audi's reputation for quality and engineering.