🏷️ Basic Information Identification Make: BMW Model: M3 Chassis Code: E30 Model Year Manual Focus: 1992 Codes Engine Code: S14B23 👋 Introduction Market Position Era Icon: The E30 M3 is a legendary homologation special, celebrated for its motorsport heritage and exceptional driving dynamics. Competitive Analysis Competitors: Porsche 944, Mercedes-Benz 190E 2.3-16 Cosworth, Ford Sierra RS Cosworth Key Features Driving Dynamics: Renowned for its balanced chassis, precise steering, and responsive engine, making it a driver's car. Motorsport Heritage: Developed directly from BMW's successful DTM racing program. 📋 Manual Details Coverage Areas Primary Coverage: Service, Repair, Workshop Systems Covered: Engine, Drivetrain, Suspension, Steering, Brakes, Electrical, Fuel, Cooling, HVAC, Bodywork, Interior Page Count Estimated Pages: 1000+ Manual Type Type: Workshop Manual / Service Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul, timing belt/chain, piston/ring inspection, valve train, crankshaft/rod bearings, cylinder head Engine Management: Fuel injection system (Bosch Motronic), ignition system, sensors, actuators, diagnostic procedures Drivetrain: Clutch, gearbox (Getrag 265), driveshafts, differential, limited-slip differential (optional) Suspension: Front struts, rear semi-trailing arms, control arms, bushings, shock absorbers, springs, alignment specifications Steering: Power steering system, steering rack, tie rods, steering column Brakes: Front and rear disc brakes, ABS (if equipped), brake fluid specifications, caliper overhaul, rotor replacement Electrical System: Wiring diagrams, starter, alternator, battery, lighting, fuses, relays, ECU diagnosis Fuel System: Fuel tank, fuel pump, fuel filter, fuel injectors, fuel pressure regulation Cooling System: Radiator, coolant hoses, water pump, thermostat, fan, coolant specifications HVAC: Air conditioning system, heater core, blower motor, refrigerant types Bodywork And Interior: Body panel repair, door mechanisms, interior trim, seat removal, glass replacement Procedures Included Maintenance: Routine checks, oil changes, filter replacements, spark plug replacement, brake pad replacement Diagnostics: Troubleshooting common issues, fault code reading (where applicable), component testing Repair Overhaul: Engine rebuild, transmission overhaul, suspension component replacement, brake system refurbishment Installation Adjustment: Component installation, alignment adjustments, clutch adjustment, valve clearance adjustment Technical Depth Depth: Comprehensive: from basic maintenance to complete engine and drivetrain rebuilds, including electrical system diagnostics and troubleshooting. 📊 Manual Specifications File Format File Type: PDF Searchability: Text-searchable content for efficient information retrieval Printability: Printable pages for workshop use Print Quality Image Resolution: High-resolution diagrams and illustrations Binding Type Binding Type: N/A (Digital Product) Paper Type Paper Type: N/A (Digital Product) ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated Inline-4 Engine Code: S14B23 Displacement: 2.3 Liters (2302 cc) Performance Horsepower: 192 hp @ 6,500 rpm (US Spec) Torque: 170 lb-ft @ 4,750 rpm (US Spec) Redline: 7,000 rpm Fuel System Fuel Delivery: Bosch Motronic Injection (ML-S1) Fuel Type: Premium Unleaded Gasoline (91+ Octane) Technical Details Bore X Stroke: 91 mm x 87 mm Compression Ratio: 10.5:1 Valve Train: Dual Overhead Camshafts (DOHC), 4 valves per cylinder 🔧 Transmission Standard Transmission Type: 5-Speed Manual Gearbox Model: Getrag 265 Optional Optional Transmission: None (Manual only for M3) Features Limited Slip Differential: Standard (typically 25% lock) Fluid Specifications Gearbox Oil Type: BMW Synthetic Gear Oil (e.g., BMW MTF LT-2 or equivalent like Red Line MTL 75W80) Gearbox Oil Capacity: Approx. 1.5 Liters 📐 Dimensions Exterior Length: 4345 mm (171.1 in) Width: 1700 mm (66.9 in) Height: 1370 mm (53.9 in) Wheelbase: 2562 mm (100.9 in) Weights Curb Weight: Approx. 1200 kg (2646 lbs) Gross Vehicle Weight: Approx. 1720 kg (3792 lbs) Wheels Tires Wheel Bolt Pattern: 5x120 Standard Wheel Size: 15x7J Standard Tire Size: 205/50VR15 🛡️ Safety Features Ratings Historic Ratings: No modern crash test ratings available for this era; known for robust chassis construction. Active Features ABS: Optional (standard on later models/markets) Passive Features Seatbelts: 3-point inertia reel seatbelts Structural Reinforcement: Reinforced chassis and crumple zones designed for the era. 💡 Technology Features Infotainment Audio System: Factory BMW radio/cassette player (various models) Speakers: Up to 6 speakers Driver Assistance Cruise Control: Optional Connectivity Connectivity Features: None (pre-digital era) 🔧 Maintenance Service Intervals Oil Change Interval: Typically 5,000-7,500 miles or annually, depending on driving conditions. Spark Plug Replacement: Every 20,000-30,000 miles Timing Belt Replacement: N/A (S14 is a chain-driven engine) Coolant Flush: Every 2 years Fluid Specifications Engine Oil Type: Synthetic 10W-40 or 15W-50 (check manual for specific BMW approvals) Engine Oil Capacity: Approx. 5.5 Liters (with filter) Coolant Type: BMW Blue Coolant (G48) or equivalent 50/50 mix with distilled water Brake Fluid Type: DOT 4 Power Steering Fluid: BMW ATF Dexron II or III Known Issues Engine Oil Consumption: S14 engines can consume oil; regular checks are crucial. Rear Subframe Mounts: Can crack due to stress; often reinforced during restoration. Bushings: Age-related wear on suspension and drivetrain bushings is common. Rust: Common rust areas include wheel arches, sills, and battery trays. 📚 Vehicle History Brand Heritage Bmw Motorsport Division: The M3 is a direct product of BMW's extensive motorsport engineering and success. Model Evolution E30 Generation: The E30 M3 was a...