Audi 100 c3 1988-1990 Bentley Workshop Service Repair Manual

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🏷️ Basic Information Identification Make: Audi Model: 100 Model Code: C3 (Type 44) Years Covered: 1988-1990 👋 Introduction Market Position Vehicle Segment: Executive Sedan/Wagon, representing Audi's premium offering in its...

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标签: 100 1988 1989 1990 Audi c3 Car Cars Wiring Diagrams

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Description

🏷️ Basic Information

Identification

Make:

Model:

Model Code:

C3 (Type 44)

Years Covered:

1988-1990

👋 Introduction

Market Position

Vehicle Segment:

Executive Sedan/Wagon, representing Audi's premium offering in its class.

Competitive Analysis

Key Competitors:

BMW 5 Series, Mercedes-Benz E-Class, Volvo 740/760, Saab 9000.

Key Features

Aerodynamics:

The C3 generation was renowned for its exceptionally low drag coefficient (Cd), a pioneering feature for its time.

Quattro:

Availability of the legendary Quattro all-wheel-drive system, enhancing traction and handling, particularly in adverse conditions.

Build Quality:

Known for robust German engineering and high-quality interior materials.

Design:

Sleek, modern design with integrated bumpers and flush windows, a departure from earlier boxier designs.

📋 Manual Details

Coverage Areas

Manual Type:

Factory Service Repair Workshop Manual

Language:

English

Format:

Completeness:

100% Complete and Intact

📖 Manual Coverage

Systems Covered

Engine:

Detailed diagnosis, repair, and overhaul procedures for all applicable engine variants (e.g., 2.3L I5).

Fuel System:

Fuel injection system (CIS-E, KE-Jetronic), fuel pump, injectors, fuel lines, pressure regulation.

Ignition System:

Ignition timing, coil, distributor (if applicable), spark plugs, ignition control module.

Cooling System:

Radiator, water pump, thermostat, hoses, fan operation, coolant specifications.

Exhaust System:

Exhaust manifold, catalytic converter, mufflers, oxygen sensors (if applicable).

Transmission:

Manual and automatic transmission overhaul, clutch service, torque converter, gear selection mechanisms.

Drivetrain:

Front-wheel drive (FWD) and Quattro all-wheel drive (AWD) systems, CV joints, driveshafts, differential.

Brakes:

Front and rear disc brake systems, ABS (Anti-lock Braking System) diagnosis and repair, brake fluid specifications, master cylinder, calipers.

Suspension:

Front struts, rear shock absorbers, control arms, ball joints, bushings, wheel alignment specifications.

Steering:

Power steering system, steering rack, tie rods, steering column.

Electrical System:

Wiring diagrams, battery, alternator, starter motor, lighting systems, fuses, relays, diagnostic connectors.

HVAC:

Heating, ventilation, and air conditioning (HVAC) system diagnosis, refrigerant, compressor, controls.

Body And Interior:

Body panel removal and installation, interior trim, seats, door mechanisms, glass replacement, rust prevention.

Body Control Modules:

Central locking, power windows, mirrors, alarm system (if equipped).

Procedures Included

Maintenance:

Oil changes, filter replacements, spark plug service, fluid checks and top-offs, belt inspections.

Troubleshooting:

Diagnostic procedures for common faults and drivability issues, symptom-based troubleshooting guides.

Repair:

Step-by-step instructions for component removal, overhaul, and reinstallation for all major systems.

Diagnostics:

Detailed diagnostic routines, test procedures, and specifications for electrical and mechanical components.

Overhaul:

Complete engine and transmission rebuild procedures.

Adjustment:

Valve adjustment, ignition timing, idle speed, brake adjustments.

Installation:

Procedures for installing aftermarket parts or replacing major components.

Technical Depth

Depth Level:

Comprehensive (from basic maintenance to complete engine/transmission rebuilds and advanced diagnostics).

Illustrations:

Hundreds of photos and detailed illustrations guiding each procedure.

Target Audience:

Do-it-yourself (DIY) enthusiasts and experienced professional mechanics.

📊 Manual Specifications

File Specifications

File Format:

PDF (Portable Document Format)

Print Quality:

Printable pages (high quality reproduction).

Searchability:

Likely searchable text within the PDF.

Compatibility:

Compatible with all PC-based Windows operating systems and Mac.

Binding Type

Binding:

Digital Download (PDF)

Paper Type

Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Primary Engine

Engine Code Example:

JN, NF (2.2L I5)

Engine Type:

Inline 5-cylinder, SOHC (Single Overhead Camshaft)

Displacement:

2.2 Liters (2226 cc)

Bore X Stroke:

85.0 mm x 98.0 mm (typical for 2.2L)

Performance

Horsepower Range:

Approximately 115-137 hp (depending on specific engine variant and emissions control)

Torque Range:

Approximately 132-150 lb-ft (depending on specific engine variant)

Fuel System

Fuel Delivery:

Bosch CIS-E (Continuous Injection System - Electronic) or KE-Jetronic fuel injection.

Fuel Type:

Unleaded Gasoline (Octane rating as per manual recommendation)

Engine Management

Engine Control Unit:

Engine Control Unit (ECU) for fuel and ignition management.

🔧 Transmission

Standard

Transmission Type Standard:

5-speed Manual Transmission

Optional

Transmission Type Optional:

ZF 4-speed Automatic Transmission

Features

All Wheel Drive:

Quattro permanent all-wheel-drive system available with both manual and automatic transmissions.

Clutch:

Hydraulically operated single dry plate clutch (for manual transmission).

Fluid Specifications

Manual Transmission Fluid:

GL-4 Gear Oil (Specific viscosity, e.g., 75W-90, as per manual)

Automatic Transmission Fluid:

Dexron III or equivalent ATF (Automatic Transmission Fluid)

📐 Dimensions

Exterior

Body Styles:

4-door Sedan, 5-door Avant (Wagon)

Length:

Approx. 4700 mm (Sedan)

Width:

Approx. 1770 mm

Height:

Approx. 1400 mm (Sedan)

Wheelbase:

Approx. 2610 mm

Weights

Curb Weight:

Approx. 1350-1500 kg (depending on configuration)

Gross Vehicle Weight:

As specified in the manual for each model variant.

Wheels Tires

Wheel Bolt Pattern:

5x112mm

Standard Tire Size:

e.g., 195/65R15, 205/55R15 (depending on trim and year)

🛡️ Safety Features

Ratings

Crash Test Data:

While official NCAP ratings as we know them today were not standard, the C3 was built with significant structural integrity. Specific data would be in the manual if available from manufacturer tests.

Active Features

Anti-lock Braking System (ABS) available as an option on some models.

Quattro AWD:

Quattro all-wheel-drive system provides enhanced stability and traction in challenging conditions.

Passive Features

Seatbelts:

Inertia-reel seatbelts with pre-tensioners (depending on market and year).

Crumple Zones:

Designed with front and rear crumple zones for impact energy absorption.

Steering Column:

Collapsible steering column for improved driver safety in frontal impacts.

💡 Technology Features

Infotainment

Audio System:

Factory-fitted radios, often with cassette players and basic EQ controls.

Driver Assistance

ABS Availability:

Optional ABS system significantly improved braking control.

Connectivity

Diagnostic Interface:

Early diagnostic systems; manual will detail connector locations and basic diagnostic procedures.

Convenience Features

Power Options:

Power windows, power mirrors, central locking were common options.

🔧 Maintenance

Service Intervals

Oil Change Interval:

Typically every 7,500-10,000 miles or 12 months, as per manual recommendation.

Timing Belt Interval:

Crucial for 5-cylinder engines; typically 60,000-80,000 miles or 5 years. Manual will specify exact interval and part number.

Spark Plug Replacement:

Refer to manual for specific interval and plug type (e.g., single or dual electrode).

Fluid Specifications

Engine Oil Capacity:

Approx. 4.5-5.0 liters (check manual for exact quantity and specification).

Engine Oil Specification:

API SG/SH or ACEA A2/A3; viscosity typically 5W-40 or 10W-40.

Coolant Specification:

G11 (Blue/Green) or equivalent silicate-free antifreeze.

Brake Fluid Specification:

DOT 3 or DOT 4 as specified.

Known Issues

Common Problems:

Potential for ABS sensor failures, fuel distributor leaks (CIS systems), aging rubber hoses and bushings, timing belt tensioner issues, and electrical connector corrosion.

Preventative Maintenance:

Regular inspection of the cooling system, timing belt replacement as per schedule, and cleaning of electrical grounds are vital.

📚 Vehicle History

Brand Heritage

Audi Legacy:

Audi's heritage of engineering innovation, particularly in quattro technology and aerodynamic design.

Model Evolution

C3 Introduction:

The Audi 100 C3 (Type 44) was introduced in 1982, with this 1988-1990 range representing the later, facelifted models.

Design Philosophy:

Continued the C3's focus on aerodynamics, comfort, and understated luxury.

Production

Production Years C3:

1982-1991

Manufacturing Location:

Germany (primarily Ingolstadt and Neckarsulm)

🏆 Awards & Recognition

Recognitions

Aerodynamic Design Award:

The C3 generation was widely recognized for its industry-leading aerodynamic efficiency, contributing to better fuel economy and reduced wind noise.

Ratings

Reliability Perception:

Generally considered a well-built and durable vehicle, especially the Quattro models, when properly maintained.