🏷️ Basic Information Identification Make: BMW Model: 3 Series Generation Generation Name: E30 Codes Chassis Code: E30 Engine Codes Covered: M10, M20, M40, M42, M21 👋 Introduction Market Position Target Audience: Enthusiast owners, DIY mechanics, and independent repair shops specializing in classic BMWs. Value Proposition: Provides access to authentic, factory-level repair information, enabling accurate and efficient maintenance and repair of the E30 3 Series. Competitive Analysis Comparison To Aftermarket: Offers superior accuracy, detail, and completeness compared to many aftermarket manuals, reflecting BMW's specific engineering and procedures. Key Features Authenticity: Original Factory Service Manual (FSM) ensuring manufacturer-specific procedures and specifications. Comprehensiveness: Covers a wide range of models and years within the E30 generation, including various engine options. Usability: Designed for ease of use with clear text, detailed diagrams, and logical organization. 📋 Manual Details Coverage Areas Models Covered: 316, 316i, 318i, 318is, 320i, 320is, 324, 324d, 324td Model Years Covered: 1985, 1986, 1987, 1988, 1989, 1990 Page Count Estimated Page Count: Extensive (Likely 500+ pages, typical for original factory manuals of this era) Manual Type Type: Factory Service Manual (FSM) / Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul procedures, component testing, assembly, timing belt/chain replacement, piston rings, bearings, cylinder head service. Engine Management And Fuel: Fuel injection systems (Bosch L-Jetronic, Motronic), carburetion (on some early models), ignition systems, diagnostics, sensor testing, ECU troubleshooting. Transmission: Manual and automatic transmission overhaul, clutch replacement, gearbox diagnostics, fluid specifications. Drivetrain: Axles, driveshafts, differential service, wheel bearings, CV joints. Suspension: Front and rear suspension component replacement (struts, shocks, control arms, bushings), alignment specifications, spring replacement. Steering: Power steering system service, steering rack overhaul, tie rod ends, steering column. Brakes: Disc brake service (pads, rotors, calipers), drum brake service (where applicable), hydraulic system (master cylinder, brake lines, bleeding), ABS diagnostics (if equipped). Electrical System: Complete wiring diagrams, starter motor, alternator, battery service, lighting systems, fuses, relays, switch testing, power windows, central locking. Body And Chassis: Body panel removal/installation, interior trim, glass replacement, door mechanisms, hinge adjustment, rust repair guidance. Heating And Air Conditioning: HVAC system diagnosis, component replacement (compressor, evaporator, heater core), refrigerant service (pre-R134a). Exhaust System: Exhaust component replacement, catalytic converter information (if applicable). Procedures Included Maintenance: Scheduled maintenance tasks, fluid changes (oil, coolant, brake fluid, transmission fluid), filter replacements, spark plug service. Troubleshooting: Diagnostic procedures for common faults, symptom-based troubleshooting guides, electrical system diagnosis. Repair: Step-by-step repair instructions for all major mechanical and electrical components. Diagnostics: OBD-I diagnostic codes and procedures, component testing with multimeter and specialized tools. Technical Depth Depth: Comprehensive (suitable for DIY mechanics and professional technicians alike, covering everything from routine maintenance to full engine and transmission rebuilds). 📊 Manual Specifications File Format File Type: PDF Searchable: Yes (typically) Printable: Yes Print Quality Quality Description: High-resolution scans of original factory documentation, ensuring clarity of text and diagrams. Binding Type Binding: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Families: M10 (4-cylinder), M20 (6-cylinder), M40 (4-cylinder), M42 (4-cylinder DOHC), M21 (Diesel 6-cylinder). Performance 316/316I Power: Approx. 75-98 hp (depending on market and specific engine variant). 318I/318Is Power: Approx. 98-115 hp (318is typically features DOHC M42). 320I/320Is Power: Approx. 125-129 hp (320is often features the M20B20). Note: 320is was a special homologation model with M20B20 and performance enhancements. 324D Power: Approx. 86 hp (Naturally Aspirated Diesel). 324Td Power: Approx. 115 hp (Turbocharged Diesel). Fuel System Fuel Delivery Gasoline: Bosch L-Jetronic or Motronic fuel injection; Carburetor on some early 316 models. Fuel Type: Unleaded gasoline (91+ RON recommended), Diesel fuel for diesel variants. Engine Displacements Liters M10: 1.6L, 1.8L M20: 2.0L, 2.3L (though 2.3L not specified in product title, it's common E30), 2.5L (later models, not specified but relevant). M40: 1.6L M42: 1.8L (DOHC) M21: 2.4L Diesel 🔧 Transmission Standard Manual Gearboxes: Getrag 240 (4-speed or 5-speed) for smaller engines, Getrag 260 (5-speed) for larger engines. Optional Automatic Gearboxes: ZF 4HP22 (4-speed automatic). Features Clutch Type: Single dry plate, hydraulically actuated (for manual transmissions). Fluid Specifications Manual Transmission Fluid Spec: API GL-4, SAE 75W-90 or 80W-90 (consult manual for exact spec based on year/model). Automatic Transmission Fluid Spec: Dexron II or equivalent. 📐 Dimensions Exterior Body Styles: 2-door sedan, 4-door sedan, convertible, station wagon (Touring - although less common for this specific manual coverage). Wheelbase Mm: Approximately 2570 mm (varies slightly by body style). Weights Curb Weight Kg: Approximately 1100-1350 kg (depending on engine and body style). 🛡️ Safety Features Ratings Crash Test Era: E30 generation pre-dates standardized NCAP testing as we know it today, but was designed to robust German safety standards of the era. Active Features ABS: Optional on most models, standard on some later performance variants (e.g., 320is, M3). Passive Features Seatbelts: Three-point seatbelts standard front and rear. Body Structure: Reinforced safety cage,...