Engine Mechanical:
Engine assembly, cylinder head, pistons, crankshaft, camshafts, timing, lubrication system, cooling system, fuel injection system (CIS-E).
Engine Management:
Ignition system, electronic engine control unit (ECU) diagnostics and wiring diagrams, sensor functions.
Transmission Manual:
Clutch, gearbox overhaul, shift mechanism, drive shafts, differential.
Transmission Automatic:
Automatic transmission (e.g., ZF 4HP-22) overhaul, hydraulic control, torque converter, valve body, shift solenoids.
Suspension:
Front suspension (MacPherson struts, control arms), rear suspension (independent trailing arms/semi-trailing arms), shock absorbers, springs, wheel bearings.
Steering:
Power steering system, steering rack, steering column, hydraulic pump, steering fluid.
Brakes:
Front and rear disc brakes, brake calipers, master cylinder, brake booster, ABS (Anti-lock Braking System) operation and diagnostics (if equipped).
Electrical System:
12V DC system, battery, alternator, starter motor, lighting system (headlights, taillights, interior), fuses, relays, wiring harnesses.
Body And Interior:
Body panels, doors, hood, trunk lid, interior trim, seats, dashboard, HVAC system (heating, ventilation, air conditioning).
Fuel System:
Fuel tank, fuel pump, fuel lines, fuel filter, fuel injectors.
Routine Maintenance:
Oil changes, filter replacements, spark plug replacement, fluid level checks and top-ups, belt inspection and replacement.
Engine Repair:
Engine rebuild procedures, valve adjustments, head gasket replacement, timing belt/chain replacement, piston and rod installation.
Transmission Service:
Transmission fluid and filter changes, clutch replacement, automatic transmission overhaul, repair of common transmission faults.
Brake Service:
Brake pad and rotor replacement, caliper servicing, brake bleeding, master cylinder replacement, ABS component testing.
Suspension And Steering Repair:
Strut replacement, control arm bushing replacement, ball joint replacement, tie rod end replacement, power steering pump and rack repair.
Electrical Diagnostics:
Troubleshooting electrical faults, testing circuits, component replacement (alternator, starter, ignition coil), wiring diagram interpretation.
Bodywork And Collision Repair:
Panel alignment, rust repair techniques, door and latch adjustment, glass replacement.
HVAC Service:
Refrigerant handling (R12 or R134a depending on region/conversion), compressor replacement, blower motor replacement, heater core service.
Troubleshooting Guides:
Diagnostic tables for common symptoms, fault codes (if applicable), and step-by-step troubleshooting sequences.
Depth Level:
Comprehensive (from basic maintenance to full engine and transmission rebuilds, including electrical diagnostics).
Diagnostic Capability:
Covers component testing, wiring diagrams, and diagnostic procedures for engine management and ABS systems.
Precision Details:
Includes torque specifications, clearances, timing marks, and alignment procedures.
Oil Change Interval:
Every 10,000 km (6,200 miles) or 12 months, whichever comes first (standard recommendation for the era).
Air Filter Replacement:
Every 20,000 km (12,400 miles) or 24 months.
Spark Plug Replacement:
Every 30,000 km (18,600 miles) for standard plugs, potentially longer for platinum plugs if fitted.
Timing Belt Replacement:
Every 60,000 km (37,000 miles) or 4-5 years for gasoline engines (critical maintenance item).
Engine Oil Spec:
API SF/SG or ACEA A2/A3, Viscosity SAE 10W-40 or 15W-50 recommended (check owner's manual for specific climate recommendations).
Coolant Spec:
Ethylene glycol based antifreeze, mixed 50/50 with distilled water for freeze protection and corrosion inhibition.
Brake Fluid Spec:
DOT 3 or DOT 4 brake fluid.
Cis E Fuel Injection Quirks:
Deterioration of fuel distributor seals, air flow meter issues, incorrect mixture settings, vacuum leaks causing rough running.
Electrical Gremlins:
Corroded connectors, failing relays (especially fuel pump and starter relays), dashboard warning light issues, aging wiring insulation.
Cooling System Issues:
Leaking coolant pipes, radiator leaks, heater core leaks (especially problematic on the passenger side).
Suspension Wear:
Worn control arm bushings, strut top mounts, and ball joints leading to imprecise handling and noise.
Corrosion:
While galvanised, corrosion can still occur in wheel arches, sills, and around window seals, particularly in areas with heavy road salt use.
Audi Heritage Post Wwii:
Audi's revival in the post-WWII era under Volkswagen Group, known for engineering innovation and premium positioning.
Audi 100 Evolution Type 44:
The Type 44 chassis replaced the Type 43. Introduced in 1982, it was a significant redesign, focusing on aerodynamics, comfort, and advanced technology for its time. The 1986 model is a mid-cycle refresh, with subtle styling and feature updates.
Key Innovations Type 44:
Introduction of the highly aerodynamic design, advanced galvanised steel unibody construction for corrosion resistance, and the widespread adoption of the sophisticated 5-cylinder engine and quattro AWD.
Production Period Type 44:
1982-1991
Manufacturing Locations:
Primarily Ingolstadt, Germany, with potential assembly in other VW Group facilities.
