🏷️ Basic Information Identification Make: Audi Model: S4 Year: 1992 Codes Platform Code: B4 👋 Introduction Market Position Segment: Performance Sedan Target Audience: Enthusiasts, DIY mechanics, and professional repair shops seeking authoritative information for the 1992 Audi S4. Competitive Analysis Competitors Era: BMW M3 (E30/E36), Mercedes-Benz 190E 2.3-16/2.5-16, Ford Sierra RS Cosworth, Lancia Delta Integrale. Key Features Software Advantage: Instant online access, searchable content, compatibility across devices, year-long subscription. Data Source: Officially licensed, derived from OE (Original Equipment) materials. 📋 Manual Details Coverage Areas Primary Coverage: Service and Repair Engine Coverage: 2.2L Inline 5-Cylinder Turbocharged (ABCs Engine Code) Drivetrain Coverage: Quattro All-Wheel Drive System Body Chassis Coverage: Suspension, Steering, Brakes, Body Panels, Interior Trim Electrical Coverage: Wiring Diagrams, Lighting, ECUs, Sensors HVAC Coverage: Heating, Ventilation, and Air Conditioning Systems Page Count Estimated Pages: Extensive (Full Factory-Derived Content) Manual Type Type: Digital Service and Repair Manual Software Language Language: English Format Format: Online Access (Web Browser Based) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine disassembly, assembly, diagnostics, timing, seals, gaskets, pistons, rings, valves, camshafts, crankshaft. Engine Performance: Turbocharger system, intercooler, fuel injection, ignition system, engine control unit (ECU) diagnostics. Transmission Manual: 5-speed manual transmission (016) disassembly, assembly, clutch replacement, gear shifter linkage. Transmission Automatic: N/A (1992 S4 exclusively manual transmission) Drivetrain Quattro: Front and rear differential service, center differential, driveshafts, CV joints, wheel bearings. Suspension Front: MacPherson struts, control arms, ball joints, sway bar, bushings, alignment specifications. Suspension Rear: Multi-link independent suspension, trailing arms, shock absorbers, springs, bushings, alignment specifications. Steering: Power steering system, steering rack, tie rods, power steering pump, fluid specifications. Brakes Front: Ventilated disc brakes, caliper replacement, pad replacement, rotor specifications, brake fluid type. Brakes Rear: Solid disc brakes, caliper replacement, pad replacement, rotor specifications, parking brake system. Electrical Charging: Alternator, battery, starter motor, charging system diagnostics. Electrical Lighting: Headlights, taillights, interior lighting, bulb types, wiring. Electrical Ignition: Distributor, ignition coils, spark plugs, ignition timing. Electrical Sensors: Oxygen sensors, throttle position sensor (TPS), knock sensors, ABS sensors, engine coolant temperature (ECT) sensor. Bodywork Exterior: Door panel removal, bumper replacement, fender alignment, hood and trunk adjustments. Bodywork Interior: Dashboard removal, seat removal, carpet replacement, headliner repair. Procedures Included Maintenance Scheduled: Oil change, filter replacement, spark plug replacement, air filter replacement, fuel filter replacement, coolant flush. Troubleshooting Engine: Diagnostic trouble codes (DTCs) interpretation, no-start conditions, rough idle, misfires, overheating. Troubleshooting Electrical: Battery drain issues, lighting faults, starter problems, warning light diagnostics. Repair Engine: Head gasket replacement, piston and ring replacement, valve job, timing belt (chain) replacement (note: this era may use a belt or chain, manual will clarify). Repair Transmission: Transmission fluid change, clutch replacement, seal replacement. Repair Brakes: Brake pad and rotor replacement, caliper overhaul, brake line replacement, bleeding procedures. Repair Suspension: Strut and shock absorber replacement, control arm and bushing replacement, wheel bearing replacement. Installation Accessories: Likely covers factory or common aftermarket accessory installations (e.g., stereo upgrades, alarm systems). Technical Depth Diagnostic Capability: Advanced diagnostics, including component testing, circuit analysis, and interpretation of sensor data. Rebuild Procedures: Comprehensive rebuild procedures for major components like the engine and transmission. Wiring Diagrams: Detailed, color-coded wiring diagrams for all vehicle systems. Torque Specifications: Precise torque specifications for all critical fasteners. Schematics: Hydraulic, pneumatic, and electrical schematics. 📊 Manual Specifications File Format Data Format: Proprietary web-based format by RepairSurge Print Quality Resolution: High-resolution, clear diagrams and text suitable for digital viewing and potential printing of specific pages. Binding Type Binding: N/A (Digital Format) Paper Type Paper: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: ABCs Configuration: Inline 5-Cylinder Displacement: 2226 cc (2.2 Liters) Aspiration: Turbocharged with Intercooler Performance Horsepower: 227 hp @ 5900 rpm Torque: 244 lb-ft (330 Nm) @ 1950 rpm Fuel System Injection Type: Bosch Motronic Electronic Fuel Injection (EFI) Fuel Type: Unleaded Premium Gasoline (91+ Octane Recommended) 🔧 Transmission Standard Type: 5-Speed Manual Transmission Features Drivetrain: Permanent All-Wheel Drive (Quattro) 📐 Dimensions Exterior Length: approx. 4540 mm (178.7 in) Width: approx. 1720 mm (67.7 in) Height: approx. 1400 mm (55.1 in) Weights Curb Weight: approx. 1470 kg (3240 lbs) 🛡️ Safety Features Ratings Certification Era: Vehicle safety standards of the early 1990s; full modern crash test ratings are not directly applicable. Active Features ABS: Anti-lock Braking System (ABS) Passive Features Airbags: Driver-side airbag standard. Seatbelts: Front and rear seat belts with pre-tensioners (driver). 💡 Technology Features Infotainment Audio System: Factory Audi Concert Series or Delta system with CD/Cassette/AM/FM radio. Speaker quality varies by trim. Driver Assistance Cruise Control: Standard electronic cruise control. Connectivity Connectivity Features: N/A (No modern Bluetooth or USB connectivity). 🔧 Maintenance Service Intervals Oil Change: Every 5,000-7,500 miles or 6-12 months, depending on driving conditions. Timing Belt: Crucial: The 2.2L 5-cylinder engine in this era typically uses a timing belt. Check manual for exact interval, generally around 60,000-90,000 miles or 5-7 years. Failure...