Engine Mechanical:
Engine system diagnostics, repair, overhaul, including cylinder head, block, crankshaft, pistons, connecting rods, timing, valve train, lubrication system, cooling system.
Engine Fuel System:
Fuel charging and controls, fuel injection systems (e.g., K-Jetronic, KE-Jetronic, Motronic), fuel pump, injectors, fuel filter, throttle body, fuel pressure regulation.
Ignition System:
Engine ignition system, distributor, ignition coils, spark plugs, ignition control module.
Emission Control:
Engine emission control, emissions systems, catalytic converter, oxygen sensors, EGR system, intake air distribution, evaporative emission control.
Electronic Engine Control:
Electronic Engine Controls (EEC) diagnostics, sensor inputs, actuator outputs, ECU operation, wiring diagrams specific to engine management.
Transmission Manual:
Manual transmission repair, overhaul, clutch controls, linkage, gear selection, internal components.
Transmission Automatic:
Automatic transmission repair, overhaul, hydraulic controls, torque converter, valve body, shift solenoids, control systems.
Driveline:
Driveline system, driveshaft, constant velocity (CV) joints, differential, axle shafts, wheel bearings.
Suspension:
Suspension system, front and rear suspension components, shock absorbers, springs, control arms, bushings, anti-roll bars.
Steering:
Steering system, steering rack, power steering pump, hoses, steering column, linkage.
Brakes:
Brake system, hydraulic components, master cylinder, brake lines, calipers, brake pads, rotors, parking brake, Anti-Lock Control (ABS) system.
Wheels Tires:
Wheel and tyre information, specifications, mounting, balancing, alignment.
Electrical System:
Electrical distribution, battery, charging system (alternator, regulator), starting system (starter motor), wiring diagrams for all circuits.
Lighting:
Lighting system, headlights, taillights, interior lights, bulb types and replacement.
Instrumentation:
Instrument and Warning Systems, dashboard instruments, gauges, warning lights, sensor inputs.
Climate Control:
Climate Control System, air conditioning, heating, ventilation, air distribution, control components, refrigerant systems.
Body Exterior:
Body System, body panels, bumpers, doors, hood, trunk, fenders, glass, frames, mechanisms, mirrors, roof.
Body Interior:
Interior Trim, seating, instrument panel, console, door panels, headliner.
Body Repairs:
Body repairs, metal repairs, subframe and mounting system, structural repairs.
Safety Features:
Safety Belt System, airbags (if equipped), other passive safety features.
Comfort Features:
Information and Entertainment Systems, power windows, power locks, cruise control (speed control), wipers and washers.
Routine Maintenance:
Routine maintenance procedures, fluid changes, filter replacements, spark plug inspection, belt checks.
Troubleshooting:
Diagnostic procedures and troubleshooting guides for various systems, including common problems and their solutions.
Component Repair:
Detailed repair and overhaul procedures for all major mechanical and electrical components.
Electrical Diagnostics:
Electrical troubleshooting, circuit testing, use of multimeters, component testing, and comprehensive wiring diagrams.
Jacking Lifting:
Correct procedures for jacking and lifting the vehicle safely for maintenance and repair.
Alignment:
Wheel alignment specifications and procedures.
Noise Vibration Harshness:
NVH (Noise, Vibration, and Harshness) diagnosis and solutions.
Depth:
Dealer-level factory manual quality, covering everything from basic maintenance to complete component overhaul and advanced diagnostics.
Diagnostic Tools:
Information implicitly supports the use of standard automotive diagnostic tools and specialized Audi tools of the era.
Oil Change Interval:
Typically every 7,500-15,000 km (4,500-9,000 miles) or annually, depending on driving conditions and oil used. The manual will specify.
Timing Belt Replacement:
For engines with timing belts (many inline-5s of this era), intervals were typically around 80,000-100,000 km (50,000-60,000 miles). Crucial to verify with manual.
Engine Oil Specification:
Typically API SF/SG or higher, viscosity grade like 5W-40, 10W-40, or 15W-40 depending on climate. Manual will provide precise recommendation.
Coolant Specification:
G11 (Blue) or G12 (Red) coolant (or equivalent), mixed 50/50 with distilled water. Manual will specify exact type.
Brake Fluid Specification:
DOT 3 or DOT 4 brake fluid, depending on the ABS system requirements. Manual will provide the specific type.
Common Wear Items:
Worn engine mounts, suspension bushings, CV joint boots, fuel pump, distributor components, vacuum leaks, ABS sensor failures, and aging rubber seals/hoses.
Turbocharger Maintenance:
Proper warm-up and cool-down procedures are critical for turbocharger longevity. Oil supply lines and seals can be prone to failure.