Market Segment:
Performance Sedan
Competitors:
BMW M3 (E30/E36 generation), Mercedes-Benz 190E 2.3-16/2.5-16, Ford Sierra RS Cosworth
Vehicle Highlights:
Turbocharged 5-cylinder engine, Quattro all-wheel drive, Sport-tuned suspension, Legendary performance and handling for its era
Value Statement:
Provides authorized, comprehensive, and easily accessible repair and maintenance information for DIY enthusiasts and professional technicians alike, at a fraction of the cost of traditional printed manuals and shop time.
Primary Coverage:
Comprehensive Service and Repair
Additional Coverage:
Maintenance, Troubleshooting, Diagnostics, Component Replacement
Estimated Page Count:
Varies by Software Version (OE source material is extensive)
Type:
Digital Service and Repair Manual (Software)
Format:
Online/Web-based Software
Powertrain:
Engine (2.2L 5-cylinder Turbocharged), Drivetrain (Quattro All-Wheel Drive), Transmission (5-speed manual)
Chassis:
Suspension (front MacPherson struts, rear independent), Steering (power-assisted rack and pinion), Brakes (front ventilated discs, rear solid discs, ABS)
Electrical:
Wiring Diagrams, Lighting, Ignition System, Charging System, Instrumentation, Audio System
Body And Interior:
Body Panels, Doors, Glass, Seats, Climate Control System (HVAC), Interior Trim
Fuel System:
Fuel pump, injectors, fuel lines, fuel pressure regulator, fuel filter replacement.
Exhaust System:
Catalytic converter, mufflers, exhaust pipes, lambda sensors (oxygen sensors).
Maintenance:
Scheduled Maintenance, Oil Changes, Filter Replacements, Fluid Checks and Replacements
Repair And Diagnostics:
Engine Overhaul, Transmission Rebuild, Brake System Repair, Suspension Component Replacement, Electrical System Troubleshooting, HVAC System Repair
Troubleshooting:
Diagnostic flowcharts for common symptoms, troubleshooting guides for electrical and mechanical issues.
Component Replacement:
Detailed instructions for replacing major components like engine mounts, CV joints, wheel bearings, radiators, and alternators.
Depth:
Factory-level repair procedures, diagnostic codes, specifications, torque values, and step-by-step instructions
Diagnostic Codes:
Information on accessing and interpreting diagnostic trouble codes (DTCs) relevant to the Motronic engine management system.
Engine Type:
Inline 5-cylinder, turbocharged, intercooled
Displacement:
2226 cc (2.2 Liters)
Bore X Stroke:
85.0 mm x 98.0 mm
Valve Train:
DOHC, 4 valves per cylinder (20 valves total)
Horsepower:
227 hp @ 5900 rpm (DIN)
Torque:
243 lb-ft (329 Nm) @ 1950 rpm
Fuel Delivery:
Bosch Motronic Electronic Fuel Injection (EFI)
Fuel Type:
Premium Unleaded Gasoline (91+ Octane)
Coolant Capacity:
Approx. 9.5 Liters (10.0 US Quarts)
Oil Capacity:
Approx. 4.5 Liters (4.8 US Quarts) with filter change
Recommended Oil Viscosity:
SAE 5W-40 or 10W-40 (depending on climate)
Type:
5-speed Manual Transmission
Type:
N/A for 1993 S4 (Manual was standard)
Drivetrain:
Permanent All-Wheel Drive (Quattro)
Manual Transmission Fluid Type:
API GL-4 or GL-5 gear oil, SAE 75W-90 recommended
Crash Test Results:
Limited data available for this era and specific model; modern standards not applicable.
Braking System:
Anti-lock Braking System (ABS)
Restraints:
Front airbags (driver and passenger), Three-point seatbelts with pre-tensioners, Rear seatbelts
Audio System:
Factory AM/FM Cassette Player with optional CD Changer compatibility (early Audi Concert/Symphony systems may not be applicable)
ABS:
Standard on all models
Quattro:
Advanced permanent all-wheel-drive system with Torsen center differential for optimal traction and handling
Climate Control:
Optional automatic climate control (Klima-Automatik)
Windows Mirrors:
Power-adjustable side mirrors, power windows (front and rear)
Oil Change Interval:
Every 10,000 km (6,000 miles) or 12 months, whichever comes first (Audi recommendation, actual usage may vary)
Timing Belt Replacement:
Every 90,000 km (55,000 miles) or 5 years
Coolant Type:
G11 (Blue) or equivalent silicate-free, ethylene glycol-based antifreeze
Power Steering Fluid Type:
Pentosin CHF 11S or compatible hydraulic fluid
Common Problems:
Turbocharger wear, intercooler leaks, oil leaks (valve cover gaskets, oil pan), ABS sensor failures, window regulator failures, ignition coil issues, fuel pump reliability.
Performance Tips:
Regular maintenance is crucial for maintaining performance. Ensure proper cooling system function to prevent heat-related issues common in turbocharged engines.
Heritage Statement:
Audi AG, a German automobile manufacturer, has a long history of engineering innovation and performance, particularly known for its Quattro all-wheel-drive system.
S4 Evolution:
The 1993 S4 represents the high-performance variant of the Audi 100/A6 lineage (B4 generation), succeeding the 200 Turbo and preceding the more powerful C4 S6. It was a significant evolution, incorporating the potent 20-valve turbocharged engine and advanced Quattro system.
Production Years:
1991-1994 (B4 generation S4/S6)
Manufacturing Location:
Ingolstadt, Germany
