🏷️ Basic Information Identification Make: BMW Model: 3 Series Chassis Code: E30 Product Type: Service Repair Workshop Manual Product Format: Downloadable PDF Codes Engine Codes Covered: M10, M20, M40, M42, M30 (partial for later models) Transmission Codes Covered: Getrag 240, Getrag 260, ZF 4HP22 Chassis Codes Covered: All E30 variants (2-door, 4-door, convertible, touring) 👋 Introduction Market Position Market Segment: Compact Executive / Sports Sedan Bmw Positioning: The E30 established BMW's reputation for sporty handling, driver engagement, and build quality in the compact luxury segment. Competitive Analysis Key Competitors: Mercedes-Benz W201 190E, Audi 80/90, Alfa Romeo 75, Ford Sierra, Chevrolet Camaro (for M3) Key Features Design Philosophy: Classic BMW proportions, driver-focused cockpit, renowned handling characteristics Performance Focus: Balanced chassis, rear-wheel drive, powerful inline-six engines (in many variants), iconic M3 variant Manual Value Proposition Target Audience: BMW E30 owners, aspiring owners, independent mechanics, and enthusiasts seeking in-depth maintenance and repair knowledge. Benefits For Owner: Empowers owners to perform routine maintenance, diagnose issues, and undertake repairs, potentially saving on labor costs and ensuring longevity. 📋 Manual Details Coverage Areas Vehicle Generations Covered: BMW E30 3 Series (1982-1991) Engine Variants Covered: 316, 318i, 320i, 323i, 324d, 324td, 325e, 325i, 325ix, M3 (various engine configurations) Page Count Estimated Page Count: 1000+ (varies by specific manual compilation) Manual Type Manual Type: Factory Service Manual / Workshop Manual / Repair Manual Language Language: English Format File Format: PDF Accessibility: Instant Download 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical (M10, M20, M40, M42, M30), Fuel system (EFI, K-Jetronic), Ignition system, Exhaust system, Cooling system, Lubrication system, Engine management systems (Motronic variants) Transmission Drivetrain: Manual transmissions (Getrag 240, 260), Automatic transmissions (ZF 4HP22), Clutch system, Drive shafts, Differential, Axles Chassis Suspension Steering: Front suspension (MacPherson struts), Rear suspension (Semi-trailing arms), Steering system (power and manual), Wheel bearings, Hubs Brakes: Front brakes (Disc), Rear brakes (Disc/Drum), ABS system (where applicable), Brake hydraulics, Parking brake Electrical System: Battery, Charging system (alternator, starter), Lighting system (headlights, taillights, interior), Fuses and relays, Wiring diagrams, Instruments and gauges, Horn, Wiper/washer system Body And Interior: Body panels, Doors, Hood, Trunk, Bumpers, Glass, Seats, Upholstery, Climate control (HVAC), Body sealing Procedures Included Maintenance: Oil changes, Filter replacements, Spark plug service, Air filter replacement, Coolant flush, Belt replacement, Brake fluid flush, Battery service Troubleshooting: Diagnostic procedures for engine performance, electrical faults, transmission issues, braking problems, starting issues, overheating Repair Rebuild: Engine overhaul, Transmission overhaul, Suspension component replacement, Brake caliper/rotor replacement, Steering rack replacement, Fuel injector replacement, Alternator/starter replacement, Radiator replacement Diagnostics: On-board diagnostics (OBD) procedures for specific ECUs, component testing, sensor diagnostics, fault code interpretation Technical Depth Depth Of Information: Comprehensive factory-level detail for professional technicians and advanced DIY enthusiasts Diagnostic Capabilities: Detailed diagnostic flowcharts, troubleshooting guides, and component testing procedures Rebuild Specifications: Torque specifications, clearance measurements, cylinder head assembly, piston ring installation, bearing clearances 📊 Manual Specifications File Format PDF Quality: High-resolution, searchable PDF with clear text and diagrams Printability: Printable pages for workshop use Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) Licensing Licensing Terms: No expiry dates, no extra fees ⚙️ Engine Specifications Primary Engine Engine Family Common: M20 Inline-4 and Inline-6 Engine Family Early: M10 Inline-4 Engine Family Diesel: M21 Diesel Inline-4 Engine Family Later 4Cyl: M40 / M42 Inline-4 (16v) Engine Family M3: S14 Inline-4 (DOHC, 4 valves per cylinder) Performance 318I Power: Approx. 105 hp (M10), 113 hp (M40) 325I Power: Approx. 170 hp (M20B25) M3 Power: Approx. 192-238 hp (S14 variants) Fuel System Fuel Injection Early: Bosch K-Jetronic (mechanical fuel injection) Fuel Injection Later: Bosch Motronic (electronic fuel injection and ignition) Fuel Type: Unleaded Gasoline (Octane rating varies by engine) Engine Management ECU Type Common: Bosch Motronic ML4.1, M1.3, M1.7 Emissions Control: Catalytic converter, Lambda sensor (O2 sensor) 🔧 Transmission Standard Standard Transmission: 5-speed Manual (e.g., Getrag 260) Optional Optional Transmission: 4-speed Automatic (e.g., ZF 4HP22) Features Clutch Type: Hydraulically actuated single-plate dry clutch Final Drive Ratio: Varies by model and engine (e.g., 3.91 for 325i, 3.73 for 325ix) 📐 Dimensions Exterior Wheelbase: Approx. 2570 mm (101.2 in) Length: Approx. 4340 mm (170.9 in) for sedan Width: Approx. 1680 mm (66.1 in) Height: Approx. 1380 mm (54.3 in) for sedan Weights Curb Weight: Varies by model, approx. 1200-1400 kg (2645-3086 lbs) Cargo Trunk Capacity: Approx. 400 liters (14.1 cu ft) 🛡️ Safety Features Ratings Crash Test Standards: Designed to meet 1980s safety standards; specific official ratings may vary by region and year. Active Features ABS: Optional on most models, standard on some later variants and M3 Traction Control: Optional on some later models (ASC) Passive Features Airbags: Driver-side airbag became optional in later years (late 80s/early 90s), not standard throughout production. Seatbelts: 3-point front seatbelts, rear lap belts (3-point optional/standard on later models) Body Structure: Reinforced safety cage, crumple zones 💡 Technology...