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Audi 90 B3 1986-1991 Workshop Service Manual for Repair

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🏷️ Basic Information Identification Make: Audi Model: 90 B3 Model Generation: B3 Model Years: 1986, 1987, 1988, 1989, 1990, 1991 Codes Chassis Code: Type 89 (also referred to as B3) 👋 Introduction Market Position Segment: Compact Executive Sedan/Coupe Target Audience: DIY enthusiasts, independent mechanics, Audi owners seeking in-depth repair knowledge Competitive Analysis Competitors: BMW 3 Series (E30), Mercedes-Benz 190E (W201), Alfa Romeo 75 Key Features Distinguishing Features: Advanced Quattro all-wheel drive system (optional), refined interior, distinctive Audi styling Manual Value Proposition: Comprehensive, detailed, and accurate technical information for effective and safe vehicle maintenance and repair. 📋 Manual Details Coverage Areas Primary Coverage: Complete repair and service for Audi 90 B3 models 1986-1991 Secondary Coverage: Maintenance, diagnostics, adjustments, removal, installation, disassembly, assembly Page Count Total Pages: 2381 Manual Type Type: Workshop Service Manual Purpose: Repair and Maintenance Language Language: English Format File Format: PDF Download Type: Instant Download 📖 Manual Coverage Systems Covered Engine: Detailed coverage of engine mechanicals, fuel system, ignition, cooling, lubrication, exhaust Transmission: Manual and automatic transmission service, repair, and overhaul Drivetrain: Front-wheel drive and quattro all-wheel drive system components, axles, differentials Suspension: Front and rear suspension systems, shock absorbers, springs, control arms, wheel bearings Steering: Steering gear, power steering system, steering column Brakes: Brake system components (discs, pads, calipers, master cylinder, lines), ABS if equipped Electrical: Complete electrical system diagrams, wiring, lighting, ignition, starting, charging, accessories Bodywork: Body panels, doors, windows, locks, body sealing, exterior trim Interior: Interior trim, seats, dashboard, HVAC system, climate control HVAC: Heating, ventilation, and air conditioning system diagnosis and repair Diagnostics: Troubleshooting guides, symptom-based diagnostics, fault code information Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks and top-offs Repair: Comprehensive step-by-step repair procedures for all major vehicle components Adjustments: Detailed procedures for adjustments on engine, brakes, suspension, and electrical systems Removal Installation: Instructions for removing and installing all vehicle parts and systems Disassembly Assembly: In-depth guides for disassembling and reassembling components Troubleshooting: Systematic troubleshooting guides for common and uncommon issues Technical Depth Depth: From basic maintenance to full engine rebuilds and complex diagnostics Detail Level: Bumper-to-bumper coverage with detailed explanations and pictorial diagrams Special Tools: References to specific Audi special service tools and their usage Specifications: Inclusion of factory specifications, torque values, wear limits, and tolerances 📊 Manual Specifications File Format Quality: High-resolution PDF, allowing for zooming and clear viewing of diagrams Searchable: Likely searchable text within PDF, facilitating quick information retrieval Print Quality Printable: Yes, all 2381 pages are printable Binding Type Binding: N/A (Digital PDF) Paper Type Paper: N/A (Digital PDF) Compatibility Operating Systems: Windows, Mac, Linux OS Requirements Software: Adobe Reader or compatible PDF viewer ⚙️ Engine Specifications Primary Engine Engine Options Common: 2.3L (2309cc) inline-5 (NG engine code) producing approximately 130-136 hp. Also 2.0L and 2.2L inline-5 variants were available in some markets. Performance Horsepower Range: 110 hp (2.0L) to 136 hp (2.3L) Torque Range: 133 lb-ft (2.3L) to 140 lb-ft (2.3L) Fuel System Fuel Delivery: Bosch K-Jetronic (CIS) or Bosch KE-Jetronic (CIS-E) mechanical fuel injection Engine Construction Cylinder Layout: Inline-5 Valvetrain: SOHC (Single Overhead Camshaft) 🔧 Transmission Standard Standard Transmission: 5-speed Manual Optional Optional Transmission: 4-speed Automatic (ZF 4HP22) Features Drivetrain Options: Front-Wheel Drive (FWD) or quattro All-Wheel Drive (AWD) 📐 Dimensions Exterior Body Styles: 4-door Sedan, 2-door Coupe Wheelbase: Approx. 2610 mm (102.8 inches) Weights Curb Weight Range: Approx. 1200-1350 kg (2645-2976 lbs) 🛡️ Safety Features Ratings Era Safety Standards: Reflects safety standards of the late 1980s and early 1990s. Active Features ABS: Anti-lock Braking System (ABS) was an available option on later models. Passive Features Seatbelts: Three-point seatbelts, potentially with pre-tensioners. 💡 Technology Features Infotainment Audio System: Factory-installed radio/cassette player with optional amplifier and speaker upgrades. Driver Assistance ABS Availability: Optional ABS system, providing enhanced braking control. Connectivity Connectivity Features: Basic for its era, focused on vehicle functions rather than external connectivity. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 5,000-7,500 miles or 6-12 months, depending on driving conditions and oil used. Timing Belt Replacement: Crucial replacement interval, typically around 50,000-60,000 miles or 5 years for the 5-cylinder engines. Fluid Specifications Engine Oil Type: API SG or higher, SAE 5W-30, 10W-40 or 15W-50 depending on climate. Manual specifies specific viscosity grades. Coolant Type: Ethylene glycol based antifreeze with corrosion inhibitors (e.g., G11). Brake Fluid Type: DOT 3 or DOT 4. Transmission Fluid Manual: API GL-4 or GL-5 SAE 75W-90 or 80W-90 gear oil. Transmission Fluid Automatic: Dexron III or equivalent ATF. Known Issues Common Problems: Fuel distributor diaphragm leaks (K-Jetronic), coolant leaks (especially heater core), electrical connector corrosion, worn suspension bushings, exhaust manifold cracks (5-cylinder). Maintenance Importance: Adherence to maintenance schedules, particularly timing belt replacement, is critical for engine longevity. 📚 Vehicle History Brand Heritage Brand Focus: Audi has a long history of engineering innovation, particularly in quattro all-wheel drive technology and...
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Audi 90 B3 1986-1991 Workshop Service Manual for Repair
🏷️ Basic Information
Identification
Make:
Audi
Model:
90 B3
Model Generation:
B3
Model Years:
1986, 1987, 1988, 1989, 1990, 1991
Codes
Chassis Code:
Type 89 (also referred to as B3)
👋 Introduction
Market Position
Segment:
Compact Executive Sedan/Coupe
Target Audience:
DIY enthusiasts, independent mechanics, Audi owners seeking in-depth repair knowledge
Competitive Analysis
Competitors:
BMW 3 Series (E30), Mercedes-Benz 190E (W201), Alfa Romeo 75
Key Features
Distinguishing Features:
Advanced Quattro all-wheel drive system (optional), refined interior, distinctive Audi styling
Manual Value Proposition:
Comprehensive, detailed, and accurate technical information for effective and safe vehicle maintenance and repair.
📋 Manual Details
Coverage Areas
Primary Coverage:
Complete repair and service for Audi 90 B3 models 1986-1991
Secondary Coverage:
Maintenance, diagnostics, adjustments, removal, installation, disassembly, assembly
Page Count
Total Pages:
2381
Manual Type
Type:
Workshop Service Manual
Purpose:
Repair and Maintenance
Language
Language:
English
Format
File Format:
PDF
Download Type:
Instant Download
📖 Manual Coverage
Systems Covered
Engine:
Detailed coverage of engine mechanicals, fuel system, ignition, cooling, lubrication, exhaust
Transmission:
Manual and automatic transmission service, repair, and overhaul
Drivetrain:
Front-wheel drive and quattro all-wheel drive system components, axles, differentials
Suspension:
Front and rear suspension systems, shock absorbers, springs, control arms, wheel bearings
Steering:
Steering gear, power steering system, steering column
Brakes:
Brake system components (discs, pads, calipers, master cylinder, lines), ABS if equipped
Electrical:
Complete electrical system diagrams, wiring, lighting, ignition, starting, charging, accessories
Bodywork:
Body panels, doors, windows, locks, body sealing, exterior trim
Interior:
Interior trim, seats, dashboard, HVAC system, climate control
HVAC:
Heating, ventilation, and air conditioning system diagnosis and repair
Diagnostics:
Troubleshooting guides, symptom-based diagnostics, fault code information
Procedures Included
Maintenance:
Scheduled maintenance, oil changes, filter replacements, fluid checks and top-offs
Repair:
Comprehensive step-by-step repair procedures for all major vehicle components
Adjustments:
Detailed procedures for adjustments on engine, brakes, suspension, and electrical systems
Removal Installation:
Instructions for removing and installing all vehicle parts and systems
Disassembly Assembly:
In-depth guides for disassembling and reassembling components
Troubleshooting:
Systematic troubleshooting guides for common and uncommon issues
Technical Depth
Depth:
From basic maintenance to full engine rebuilds and complex diagnostics
Detail Level:
Bumper-to-bumper coverage with detailed explanations and pictorial diagrams
Special Tools:
References to specific Audi special service tools and their usage
Specifications:
Inclusion of factory specifications, torque values, wear limits, and tolerances
📊 Manual Specifications
File Format
Quality:
High-resolution PDF, allowing for zooming and clear viewing of diagrams
Searchable:
Likely searchable text within PDF, facilitating quick information retrieval
Print Quality
Printable:
Yes, all 2381 pages are printable
Binding Type
Binding:
N/A (Digital PDF)
Paper Type
Paper:
N/A (Digital PDF)
Compatibility
Operating Systems:
Windows, Mac, Linux OS
Requirements
Software:
Adobe Reader or compatible PDF viewer
⚙️ Engine Specifications
Primary Engine
Engine Options Common:
2.3L (2309cc) inline-5 (NG engine code) producing approximately 130-136 hp. Also 2.0L and 2.2L inline-5 variants were available in some markets.
Performance
Horsepower Range:
110 hp (2.0L) to 136 hp (2.3L)
Torque Range:
133 lb-ft (2.3L) to 140 lb-ft (2.3L)
Fuel System
Fuel Delivery:
Bosch K-Jetronic (CIS) or Bosch KE-Jetronic (CIS-E) mechanical fuel injection
Engine Construction
Cylinder Layout:
Inline-5
Valvetrain:
SOHC (Single Overhead Camshaft)
🔧 Transmission
Standard
Standard Transmission:
5-speed Manual
Optional
Optional Transmission:
4-speed Automatic (ZF 4HP22)
Features
Drivetrain Options:
Front-Wheel Drive (FWD) or quattro All-Wheel Drive (AWD)
📐 Dimensions
Exterior
Body Styles:
4-door Sedan, 2-door Coupe
Wheelbase:
Approx. 2610 mm (102.8 inches)
Weights
Curb Weight Range:
Approx. 1200-1350 kg (2645-2976 lbs)
🛡️ Safety Features
Ratings
Era Safety Standards:
Reflects safety standards of the late 1980s and early 1990s.
Active Features
ABS:
Anti-lock Braking System (ABS) was an available option on later models.
Passive Features
Seatbelts:
Three-point seatbelts, potentially with pre-tensioners.
💡 Technology Features
Infotainment
Audio System:
Factory-installed radio/cassette player with optional amplifier and speaker upgrades.
Driver Assistance
ABS Availability:
Optional ABS system, providing enhanced braking control.
Connectivity
Connectivity Features:
Basic for its era, focused on vehicle functions rather than external connectivity.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Typically 5,000-7,500 miles or 6-12 months, depending on driving conditions and oil used.
Timing Belt Replacement:
Crucial replacement interval, typically around 50,000-60,000 miles or 5 years for the 5-cylinder engines.
Fluid Specifications
Engine Oil Type:
API SG or higher, SAE 5W-30, 10W-40 or 15W-50 depending on climate. Manual specifies specific viscosity grades.
Coolant Type:
Ethylene glycol based antifreeze with corrosion inhibitors (e.g., G11).
Brake Fluid Type:
DOT 3 or DOT 4.
Transmission Fluid Manual:
API GL-4 or GL-5 SAE 75W-90 or 80W-90 gear oil.
Transmission Fluid Automatic:
Dexron III or equivalent ATF.
Known Issues
Common Problems:
Fuel distributor diaphragm leaks (K-Jetronic), coolant leaks (especially heater core), electrical connector corrosion, worn suspension bushings, exhaust manifold cracks (5-cylinder).
Maintenance Importance:
Adherence to maintenance schedules, particularly timing belt replacement, is critical for engine longevity.
📚 Vehicle History
Brand Heritage
Brand Focus:
Audi has a long history of engineering innovation, particularly in quattro all-wheel drive technology and advanced engine designs.
Model Evolution
Predecessor:
Audi 80/90 (B2)
Successor:
Audi A4 (B5) (effectively replaced the 80/90 lineage)
Production
Production Period:
1986-1991
Manufacturing Locations:
Ingolstadt, Germany
🏆 Awards & Recognition
Recognitions
Automotive Press:
The Audi 90 B3 was generally well-received for its build quality, comfort, and driving dynamics, especially with quattro.
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