🏷️ Basic Information Identification Make: BMW Model: M3 Generation: E30 Year Covered: 1982 Codes Chassis Code: E30 Model Code: M3 👋 Introduction Market Position Segment: Performance Sedan/Coupe Target Audience: Enthusiasts, Performance Drivers, Track Day Participants Competitive Analysis Competitors: Ford Sierra RS Cosworth, Peugeot 405 Mi16, Alfa Romeo 75 Evoluzione Key Features Motorsport Homologation: Developed for Group A Touring Car racing homologation Handling: Renowned for its exceptional handling and driver feedback Engine Development: Unique S14 4-cylinder engine, derived from BMW's M10 block Aerodynamics: Distinctive flared arches, front air dam, and rear spoiler for improved downforce 📋 Manual Details Coverage Areas Coverage Type: Comprehensive Service and Repair Page Count Estimated Pages: 1500+ Manual Type Type: Workshop Manual / Service Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine, Fuel System, Exhaust System, Cooling System, Lubrication System Drivetrain: Transmission (Manual), Clutch, Driveshafts, Differential, Axles Chassis: Suspension (Front & Rear), Steering System, Braking System, Wheels & Tires Electrical: Engine Management, Ignition System, Lighting, Instrumentation, Power Accessories, Battery, Charging System, Fuses & Relays Body: Body Panels, Doors, Windows, Seats, Interior Trim, Bumpers, Aerodynamics Procedures Included Maintenance: Scheduled Maintenance, Oil Changes, Filter Replacements, Fluid Checks & Top-offs Troubleshooting: Diagnostic Flowcharts, Symptom-based Troubleshooting Guides, Error Code Interpretation Repair: Engine Overhaul, Transmission Rebuild, Brake System Repair, Suspension Component Replacement, Electrical Component Repair Diagnostics: Component Testing, Electrical Schematics Interpretation, OBD (On-Board Diagnostics) Procedures Specifications: Torque Specifications, Tightening Sequences, Alignment Data, Component Tolerances Technical Depth Depth: Expert Level; Covers detailed diagnostics, component-level repair, and complete system overhauls. 📊 Manual Specifications File Format File Type: PDF Searchability: Full Text Searchable Print Quality Image Resolution: High-resolution diagrams and images for clarity Binding Type Binding: N/A (Digital) Paper Type Paper Quality: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Code: S14 Configuration: Inline 4-cylinder, DOHC (Double Overhead Camshaft) Displacement: 2.3 Liters (2302 cc) Bore X Stroke: 93.7 mm x 84.0 mm Performance Horsepower: 192 hp @ 6100 rpm (Catalytic Converter Version: 190 hp @ 6100 rpm) Torque: 170 lb-ft @ 4750 rpm (Catalytic Converter Version: 164 lb-ft @ 4750 rpm) Fuel System Fuel Delivery: Bosch L-Jetronic Fuel Injection Fuel Type: Unleaded Premium (91+ Octane) Ignition System Ignition Type: Distributorless Ignition System (DIS) or Distributor with Electronic Ignition Control Cooling System Coolant Type: BMW Antifreeze/Coolant (Ethylene Glycol based) Lubrication System Oil Capacity: 5.0 Liters (5.3 US Quarts) with filter Recommended Oil Viscosity: SAE 15W-40 or 20W-50 (depending on climate and usage, check manual for specific recommendations) 🔧 Transmission Standard Type: Getrag 265 5-Speed Manual Gear Ratios: Close-ratio, with a Dogleg first gear (first gear is angled forward and down) Optional Type: N/A (M3 E30 exclusively manual) Features Clutch Type: Hydraulically operated single-plate dry clutch Transmission Fluid Capacity: 1.5 Liters (1.6 US Quarts) Transmission Fluid Type: GL-4 Gear Oil (e.g., Red Line MTL 75W-80) 📐 Dimensions Exterior Length: 4330 mm (170.5 in) Width: 1700 mm (66.9 in) Height: 1370 mm (53.9 in) Wheelbase: 2565 mm (101.0 in) Weights Curb Weight: 1200 kg (2646 lbs) Gross Vehicle Weight Rating: 1630 kg (3594 lbs) Cargo Trunk Capacity: Approximately 0.42 m³ (14.8 cu ft) 🛡️ Safety Features Ratings Crash Test Data: Data from era; later models may have more extensive testing. Focus on design for occupant protection. Active Features Braking System: Four-wheel disc brakes (Ventilated front discs, solid rear discs) ABS: Optional Anti-lock Braking System (ABS) available on some models Passive Features Seatbelts: 3-point inertia-reel seatbelts Steering Column: Collapsible steering column Construction: Reinforced safety cell, crumple zones 💡 Technology Features Infotainment Radio: Factory BMW E30 radio system (e.g., Bavaria C or similar) Speakers: Factory speaker setup Driver Assistance ABS: Optional, as mentioned in safety features. Cruise Control: Optional on some models. Connectivity Connectivity Features: Limited by era; primarily focused on vehicle function rather than digital integration. 🔧 Maintenance Service Intervals Oil Change: Every 7,500-10,000 miles or 12-18 months (refer to manual for precise interval based on driving conditions) Air Filter: Inspect every 15,000 miles, replace as needed (more frequently in dusty conditions) Spark Plugs: Replace every 30,000 miles (typically NGK BPR6ES or equivalent) Timing Belt: N/A (S14 engine uses a timing chain) Fluid Specifications Brake Fluid: DOT 4 (e.g., Ate Super Blue Racing or equivalent high-performance fluid) Power Steering Fluid: ATF Dexron II or equivalent Coolant Capacity: Approx. 7.5 Liters (7.9 US Quarts) Known Issues Head Gasket: Can be prone to leaks if overheated or due to age; proper coolant levels are crucial. Oil Pan Leaks: Common due to age of seals and gaskets. Rear Axle Bushings: Wear can lead to wheel hop and instability under acceleration. Subframe Mounts: Can crack or become loose, affecting alignment and handling. ECU Issues: Early models can suffer from DME (Digital Motor Electronics) failures or corrosion. 📚 Vehicle History Brand Heritage Bmw Motorsport: Direct lineage from BMW's successful motorsport division Model Evolution Purpose: Homologation special for...