Engine Mechanical:
Engine overhaul, cylinder head, block assembly, pistons, rings, crankshaft, camshaft, timing system, lubrication system, cooling system, fuel injection (CIS/KE-Jetronic and electronic), emissions control systems.
Engine Electrical:
Ignition system, starting system, charging system, fuel injection control module (ECU), sensors, actuators, diagnostic codes.
Transmission:
Manual transmission (5-speed), Automatic transmission (e.g., ZF 4HP22) overhaul, component identification, fluid specifications, torque converter, shift control.
Drivetrain:
Front-wheel drive (FWD) and Quattro all-wheel drive (AWD) system diagnosis and repair, driveshafts, CV joints, differentials (front and rear, if applicable).
Suspension:
Front suspension (e.g., McPherson struts, control arms), rear suspension (e.g., semi-trailing arms), shock absorbers, springs, bushings, alignment specifications.
Steering:
Power steering system diagnosis and repair, steering rack, tie rods, steering column, hydraulic pump.
Brakes:
Front and rear disc brakes, brake calipers, master cylinder, brake booster, ABS system (if equipped), bleeding procedures, parking brake.
Electrical System:
Full wiring diagrams, lighting system, gauges and instruments, power windows, central locking, climate control, radio wiring, fuses, relays.
Body And Chassis:
Body panel removal and installation, doors, hood, trunk lid, bumpers, glass, interior trim, sound deadening, chassis specifications.
Heating Ventilation And Ac:
HVAC system operation, components, refrigerant handling, blower motor, heater core, A/C compressor, diagnosis.
Troubleshooting:
Comprehensive diagnostic procedures for all systems, symptom-based troubleshooting guides, fault code interpretation.
Chassis Systems:
Detailed information on steering geometry, wheel alignment specifications, and suspension tuning.
Maintenance Procedures:
Oil and filter changes, fluid checks and top-offs, spark plug replacement, air filter replacement, coolant flush, brake pad replacement, belt inspection and replacement.
Repair Procedures:
Engine rebuilds, transmission removal and installation, suspension component replacement, brake system overhaul, electrical component diagnosis and replacement, body repair.
Diagnostic Procedures:
Detailed steps for diagnosing engine performance issues, electrical faults, transmission problems, and chassis component failures. Includes use of diagnostic tools and interpretation of readings.
Wiring Diagrams:
Complete and detailed electrical wiring diagrams for all vehicle systems, including color coding and component identification.
Specifications Data:
Includes torque specifications for all fasteners, fluid capacities, engine timing settings, and electrical component resistance values.
Depth Of Information:
Extremely detailed, covering everything from routine maintenance to complete engine and transmission rebuilds, suitable for professional technicians and advanced DIY mechanics.
Diagnostic Tools Coverage:
Procedures for using diagnostic tools specific to Audi's systems of the late 1980s, including interpretation of fault codes.
Oil Change Interval:
Typically every 5,000-7,500 miles or 6-12 months, depending on driving conditions.
Timing Belt Interval:
Recommended replacement interval: typically 40,000-60,000 miles or 4-5 years (critical for interference engines).
Engine Oil Type:
Refer to manual for specific viscosity grades (e.g., 5W-30, 10W-40, 5W-40 synthetic depending on engine and climate). API SF/SG or higher.
Coolant Type:
Ethylene glycol-based antifreeze. Check manual for specific mixture ratios and Audi-approved types.
Transmission Fluid Auto:
Refer to manual for specific ATF type (e.g., Dexron II or equivalent) and capacity for ZF transmissions.
Brake Fluid Type:
DOT 3 or DOT 4 brake fluid.
Common Problems:
Fuel distributor leaks (CIS systems), worn control arm bushings, aging vacuum lines and hoses, electrical connector corrosion, coolant leaks (especially from hose connections and water pump), timing belt failure if neglected.
Common Problems Detail:
Water pump leaks, alternator bearing noise, starter motor issues, ABS sensor failures, headlight leveling system problems (if equipped).