Market Segment:
Executive Sedan/Wagon, Premium Mid-size segment
Key Competitors:
BMW 5 Series (E34), Mercedes-Benz E-Class (W124), Volvo 240/740/940, Saab 9000
Model Highlights:
Front-wheel drive architecture, available quattro all-wheel drive, galvanized unibody construction, refined interior, innovative aerodynamic design for its era.
Manual Value Proposition:
Provides essential technical data for maintaining and repairing the Audi 100, enabling DIY enthusiasts and professional mechanics to perform a wide range of tasks, saving on labor costs and extending vehicle lifespan.
Primary Coverage:
Service, Repair, and Maintenance
Estimated Page Count:
Extensive (typical workshop manuals for this era range from 500 to over 1000 pages)
Manual Type:
Workshop Service and Repair Manual
Language:
English (presumed, standard for Audi manuals of this period)
Engine Systems:
Engine mechanical, fuel injection (KE-Jetronic, Motronic), ignition, cooling, lubrication, exhaust
Transmission Systems:
Manual transmission, Automatic transmission (ZF 4HP-22), clutch system
Drivetrain Systems:
Front-wheel drive (FWD), quattro all-wheel drive (AWD) system (center differential, rear differential, drive shafts)
Suspension Steering:
Front independent suspension (MacPherson struts), rear independent suspension (semi-trailing arms), power steering system, steering gear
Brake Systems:
Front disc brakes, rear disc brakes, anti-lock braking system (ABS, if equipped), parking brake
Electrical Systems:
12V electrical system, battery, alternator, starter motor, lighting, instrumentation, fuses, relays, wiring diagrams
Body Chassis:
Body construction, exterior panels, doors, windows, interior trim, sound insulation
HVAC Systems:
Heating, Ventilation, and Air Conditioning (HVAC) system, climate control
Maintenance Procedures:
Oil change, filter replacement, spark plug replacement, brake fluid flush, coolant flush, belt replacement, tune-ups
Repair Procedures:
Engine overhaul, transmission overhaul, suspension component replacement, brake caliper rebuild, electrical component diagnosis and repair
Troubleshooting Diagnostics:
Step-by-step diagnostic procedures for common faults, symptom-based troubleshooting guides
Specification Settings:
Valve clearances, ignition timing, fuel pressure, torque specifications for all fasteners, wheel alignment specifications
Component Removal Installation:
Detailed instructions for removing and installing all major mechanical and electrical components
Depth Of Coverage:
Comprehensive (covers everything from basic fluid changes to complete engine and transmission rebuilds)
Diagnostic Capability:
Advanced diagnostic routines and fault code interpretation for electronic systems (where applicable for 1989 models)
Special Tools:
Identification and usage of specialized tools required for specific procedures
Engine Type:
Inline-5 Cylinder, Naturally Aspirated
Engine Displacement Liters:
2.3 L (2309 cc)
Engine Code Common:
NG (Gasoline)
Horsepower Ps:
136 PS (approx. 134 hp)
Torque Nm:
186 Nm (approx. 137 lb-ft)
Fuel Delivery:
Bosch KE-Jetronic (CIS-E) fuel injection
Fuel Type:
Unleaded Gasoline (Premium recommended)
ECU Type:
Motronic (integrated ignition and fuel control)
Coolant Type:
Ethylene Glycol based coolant (G11 spec or equivalent, typically blue/green)
Standard Transmission Type:
5-Speed Manual
Optional Transmission Type:
ZF 4-Speed Automatic Transmission (4HP-22)
Automatic Transmission Features:
Lock-up torque converter, Sport/Comfort modes (if equipped)
Manual Transmission Fluid:
GL-4 Gear Oil (e.g., 75W-90 or 80W-90)
Automatic Transmission Fluid:
Dexron II or equivalent
Crash Test Ratings:
NHTSA/IIHS data for this era is less comprehensive than modern standards; focus is on engineering robustness and available features.
ABS:
Anti-lock Braking System (Optional on some models)
Seatbelts:
3-point inertia-reel seatbelts with front pre-tensioners (standard)
Airbags:
Driver-side airbag (Optional, became more common towards the end of the generation)
Body Structure:
Galvanized steel unibody for corrosion resistance, safety crumple zones
Oil Change Interval Km Miles:
Typically 10,000-15,000 km (6,000-10,000 miles) or 12 months, whichever comes first.
Spark Plug Replacement Interval:
Approximately 30,000-50,000 km (20,000-30,000 miles), depending on spark plug type.
Timing Belt Replacement Interval:
Critical: Typically 60,000-90,000 km (40,000-60,000 miles) or 5 years. Failure can cause severe engine damage.
Engine Oil Type:
API SG/SH or ACEA A2/A3, SAE 5W-40, 10W-40, or 15W-40 (depending on climate)
Engine Oil Capacity Liters:
Approx. 4.5 liters (4.8 US quarts) with filter
Brake Fluid Type:
DOT 3 or DOT 4
Power Steering Fluid Type:
Pentosin CHF 11S or equivalent hydraulic fluid
Common Problems:
Engine oil leaks (valve cover gaskets, oil pan gaskets), coolant leaks (hose degradation, water pump seals), fuel distributor issues (KE-Jetronic), starter motor failure, ABS sensor failures, door lock actuator issues, minor electrical gremlins.
Rust Prone Areas:
Wheel wells, rocker panels, rear strut towers, trunk floor (due to body galvanization, rust is generally less severe than non-galvanized cars of the era).
Brand Establishment:
Audi AG, a German automobile manufacturer, has a heritage dating back to the early 20th century.
Previous Generation:
Audi 100 (Type 43)
Successor Model:
Audi A6 (C4)
Production Period:
1982 - 1991 (Type 44/4C generation)
Manufacturing Locations:
Germany (Ingolstadt, Neckarsulm), Belgium, Brazil, Mexico
