Positioning:
Premium executive sedan and wagon targeting discerning buyers prioritizing quality, comfort, and sophisticated engineering.
Competitors:
BMW 5 Series, Mercedes-Benz E-Class, Lexus GS, Volvo 900 Series.
Engineering Philosophy:
German engineering, emphasis on Quattro all-wheel drive, refined interiors, and robust build quality.
Model Significance:
Represents the evolution of Audi's executive class offering, blending performance and luxury.
Engine Mechanical:
Yes (Diagnosis, Repair, Overhaul of all engine variants)
Engine Electrical:
Yes (Ignition, Fuel Injection, Sensors, ECUs)
Transmission Manual:
Yes (Clutch, Gearbox repair, linkages)
Transmission Automatic:
Yes (Repair, Fluid services, solenoids, torque converter)
Drivetrain:
Yes (Front-Wheel Drive, Quattro All-Wheel Drive systems, differentials, axles)
Suspension:
Yes (Front and Rear suspension, struts, shocks, bushings, alignment)
Steering:
Yes (Power steering system, pump, rack and pinion, tie rods)
Brakes:
Yes (Front and Rear brakes, ABS, hydraulic system, disc/drum details)
Fuel System:
Yes (Fuel pump, injectors, lines, tank, evaporative emissions control)
Cooling System:
Yes (Radiator, thermostat, water pump, fan, coolant specifications)
Exhaust System:
Yes (Catalytic converter, mufflers, pipes, O2 sensors)
Electrical System:
Yes (Battery, alternator, starter, wiring diagrams, fuses, relays)
Climate Control:
Yes (HVAC system, A/C, heater core, blower motor, climate control modules)
Interior Systems:
Yes (Seats, upholstery, door panels, trim, instrument cluster)
Exterior Body:
Yes (Body panels, doors, hood, trunk, bumpers, glass replacement)
Safety Systems:
Yes (Airbags, seatbelts, ABS operation)
Routine Maintenance:
Yes (Oil changes, filter replacements, fluid checks)
Diagnostic Procedures:
Yes (Troubleshooting guides, symptom-based diagnostics)
Repair Procedures:
Yes (Step-by-step guides for all major components)
Overhaul Procedures:
Yes (Engine and transmission rebuilds)
Installation Procedures:
Yes (Component replacement and installation)
Specifications Data:
Yes (Torque values, clearances, fluid types)
Depth:
Comprehensive (Dealer-level technical information)
Oil Change Interval:
Every 7,500 miles or 12 months, whichever comes first (using synthetic oil).
Engine Coolant Flush:
Every 30,000 miles or 2 years.
Timing Belt Replacement:
Every 60,000 miles or 5 years for V6 engines (critical component).
Engine Oil Type:
SAE 5W-40 Synthetic recommended (API SG or higher)
Engine Oil Capacity Liters:
Approx. 5.0 - 5.5 liters (with filter) for 2.6L V6.
Power Steering Fluid Type:
G 002 000 (or CHF 11S)
Coolant Type:
G 12 (or equivalent pink ethylene glycol coolant)
Engine Oil Leaks:
Common from valve cover gaskets, oil pan gaskets, and crankshaft seals, particularly with age.
Timing Belt Failure:
Critical failure if not replaced on schedule, can cause catastrophic engine damage.
Suspension Components:
Wear on control arm bushings and ball joints can lead to steering looseness and tire wear.
Ignition Coil Packs:
Can degrade over time, leading to misfires and rough running, especially on V6 models.
Window Regulator Failure:
Plastic components can break, leading to malfunctioning power windows.
ABS Module Failure:
Can become faulty with age, triggering ABS warning lights.
Heritage:
Audi, a German automotive manufacturer with a long history dating back to the early 20th century, known for its engineering prowess and innovative designs.
C4 Generation Introduction:
The C4 platform Audi 100 was introduced in late 1990 (as a 1991 model) and was a significant departure from the C3 generation, featuring more aerodynamic styling and improved safety.
C4 Facelift:
The C4 received a facelift in 1994, which included revised front and rear styling, updated interior, and powertrain enhancements, leading to the designation as the Audi A6 in many markets for subsequent years.
Production Years C4:
1990-1997
Manufacturing Locations:
Ingolstadt, Germany.
Model Transition:
The Audi 100 (C4) was rebranded as the Audi A6 starting with the 1995 model year in North America.