🏷️ Basic Information Identification Make: BMW Model: M3 Chassis Code: E30 Generation: First Generation M3 Production Years Covered: 1986-1992 Engine Code: S14 Transmission Type Covered: Manual Transmission Only 👋 Introduction Market Position Positioning: Essential resource for BMW E30 M3 enthusiasts and technicians seeking authentic repair information. Competitive Analysis Competitors: Comparable to factory service manuals (e.g., Bentley Publishers), offering equivalent depth and accuracy for independent use. Key Features Feature 1: Dealer-level diagnostic and repair procedures. Feature 2: Comprehensive coverage of all major vehicle systems. Feature 3: Empowers owners to understand and communicate effectively with technicians. Feature 4: Instant digital access without shipping delays. 📋 Manual Details Coverage Areas Primary Coverage: Comprehensive repair and service for BMW E30 M3 Target Audience: Owners with basic mechanical skills, independent auto service professionals Page Count Estimated Page Count: Refer to product for exact count, typically 1000+ pages for full service manuals Manual Type Type: Repair Service Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine: Service and Overhauling, Induction, Fuel System, Emission Control, Mechanical, Control System Drivetrain: Transmission and Differentials Chassis: Chassis, Steering and Suspension, Brakes, ABS Body: Body Electrical: Wiring Procedures Included Maintenance: Scheduled maintenance, routine service work Diagnostics: Troubleshooting and Diagnostics, diagnosing fault symptoms Repair: Engine overhauling, transmission service, brake repair, suspension work Technical Analysis: Evaluating repair approaches, analyzing engine management systems Electrical Tracing: Verifying wiring diagrams, specific terminal pin connections and expected readings Technical Depth Depth: Dealer-level specifications and procedures, advanced diagnostics, rebuild procedures 📊 Manual Specifications File Format File Type: PDF Viewing Compatibility: PC, Mac, E-readers (Kindle), many mobile devices Printability: Printable individual pages Print Quality Quality: High-resolution for clarity, suitable for professional use Binding Type Binding: N/A (Digital File) Paper Type Paper: N/A (Digital File) Delivery Method Delivery: Instant Download ⚙️ Engine Specifications Primary Engine Engine Code: S14 Engine Type: Naturally Aspirated Inline-4 Displacement: 2.3 Liters (2302 cc) Bore X Stroke: 93.75 mm x 83.2 mm Compression Ratio: 10.5:1 (typically) Valvetrain: DOHC, 4 Valves per Cylinder Performance Horsepower: 192 hp @ 6900 rpm (European Spec), 192 hp @ 6900 rpm (US Spec, 1987-1988), 210 hp @ 6750 rpm (US Spec Cat. Conv. models, 1989-1991) Torque: 170 lb-ft @ 4900 rpm (European Spec), 170 lb-ft @ 4900 rpm (US Spec, 1987-1988), 181 lb-ft @ 4750 rpm (US Spec Cat. Conv. models, 1989-1991) Fuel System Fuel Delivery: Bosch L-Jetronic Fuel Injection (early models), Bosch Motronic (later models) Recommended Fuel: Premium Unleaded Gasoline (91 Octane or higher) Induction Intake System: Individual Throttle Bodies (ITBs) on some models, common intake manifold on others 🔧 Transmission Standard Type: 5-Speed Manual Transmission (Getrag 265) Optional Type: None (No Automatic Transmission offered for E30 M3) Features Clutch Type: Single Dry Plate Clutch Differential: Limited Slip Differential (LSD) standard Gear Ratios: Specific ratios detailed in manual, typically close-ratio for performance Fluid Specifications Transmission Fluid Type: Refer to manual for specific BMW approved gear oil (e.g., Castrol TAF-X, or equivalent with appropriate API GL-4/GL-5 rating) Fluid Capacity Capacity: Approx. 1.5 Liters (refer to manual for exact specification) 📐 Dimensions Exterior Length: 4347 mm (171.1 in) Width: 1700 mm (66.9 in) Height: 1365 mm (53.7 in) Wheelbase: 2565 mm (100.9 in) Weights Curb Weight: Approx. 1200 kg (2646 lbs) Gross Vehicle Weight Rating: Refer to manual Cargo Trunk Capacity: Refer to manual Wheels Tires Wheel Size: 15-inch Alloy (standard), 16-inch Alloy (optional/later models) Tire Size: 205/55 VR 15 (standard), 225/45 ZR 16 (optional/later models) Bolt Pattern: 5x120 mm Offset: Refer to manual for specific fitments 🛡️ Safety Features Ratings Crash Test Results: No specific US NCAP ratings available for this period, but designed with advanced safety features for its time. Active Features ABS: Anti-lock Braking System (ABS) available/standard on later models Brakes: Front: Ventilated Discs, Rear: Solid Discs Passive Features Seatbelts: Three-point inertia-reel seatbelts Body Structure: Reinforced safety cage, crumple zones 💡 Technology Features Infotainment Infotainment System: Basic analog gauges, optional cassette/radio system of the era. Driver Assistance Driver Assistance Features: ABS (on applicable models), limited compared to modern vehicles. 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500-10,000 miles or 12 months (refer to manual for specific driving conditions) Spark Plug Replacement: Every 30,000 miles (typical for period) Coolant Flush: Every 2-3 years or 30,000 miles Fluid Specifications Engine Oil Type: Fully Synthetic 5W-40 or 10W-40 (refer to manual for specific BMW LL approvals) Engine Oil Capacity: 5.0 Liters (with filter change) Coolant Type: BMW Blue or Green Antifreeze (50/50 mix with distilled water) Brake Fluid Type: DOT 4 Known Issues Common Issue 1: Head gasket leaks (due to high-performance nature of the S14 engine). Common Issue 2: Rocker arm wear or ticking noise. Common Issue 3: Subframe cracking (especially rear subframe mounts). Common Issue 4: Vanos system issues (if equipped on later models, though primary E30 M3 did not have Vanos, later S14 variants...