🏷️ Basic Information Identification Make: BMW Model: 5-series Model Code: E12 Year: 1979 👋 Introduction Market Position Target Audience: BMW E12 5-series owners, DIY enthusiasts, independent repair shops Value Proposition: Empowers owners to perform maintenance and repairs, saving time and money compared to dealership service Competitive Analysis Differentiation: Authentic factory data, vehicle-specific, comprehensive coverage unlike generic manuals Key Features Key Selling Points: Step-by-step instructions, diagrams, illustrations, wiring schematics, specifications, all-in-one PDF format Benefits Knowledge Enhancement: Increases user knowledge and confidence in vehicle maintenance and repair Convenience: Print only necessary pages, take to garage/workshop, avoid physical manual wear and tear 📋 Manual Details Coverage Areas Primary Coverage: All models and all repairs A-Z for the 1979 BMW 5-series (E12) Specific Models Covered: All 1979 E12 5-series variants (e.g., 520, 525, 528i, etc.) Page Count Estimated Page Count: Comprehensive (Specific page count not provided, but described as complete) Manual Type Type: Factory Service and Repair Manual Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Engine: Complete service, diagnosis, and repair for engine systems Control System: Engine control system diagnostics and repair Mechanical: All mechanical components and systems Fuel System: Fuel service specifications and repair Emission Control: Emission control systems diagnosis and repair Cooling System: Intake, exhaust, and cooling system service Lubrication System: Lubrication system service and specifications Ignition Charging: Ignition, starting, and charging system service Transmission Auto: Automatic transmission service and repair Transmission Manual: Manual transmission service and repair Drivetrain: Transfer case, propeller shaft, driveshaft, differential, and axle service Suspension: Suspension system diagnosis and repair Wheels Tires: Tire and wheel service specifications Brakes: Brake control, brake system, and parking brake service Steering: Steering column and power steering system service Climate Control: Air conditioning system service and repair Safety Restraint: Supplemental restraint system (SRS) and seat belt service Security: Engine immobilizer system information Cruise Control: Cruise control system service Wipers Washers: Wiper and washer system service Body Interior: Door lock systems, interior and exterior trim, seats, engine hood, doors, and glass/mirrors Electrical: Complete electrical system diagnosis, wiring schematics, and repair Instrumentation: Instrument panel, meter, and audio/visual system service Chassis: Chassis component service and repair Communication: Multiplex/CAN communication system information Procedures Included Maintenance: Complete step-by-step maintenance procedures Repair: Detailed repair instructions for all vehicle systems Diagnostics: Diagnostic procedures for troubleshooting common and complex issues Specifications: Comprehensive technical specifications for all components and systems Wiring: Complete wiring schematics and diagrams Illustrations: Detailed diagrams and illustrations for visual guidance Technical Depth Depth: Factory-level, high-detail repair information used by dealership technicians Relevance: Vehicle-specific, not generic repair information 📊 Manual Specifications File Format Format: PDF Compatibility: Windows (Vista32/64, XP, ME, 98, NT, 2000) and Mac compatible Requirements: Adobe PDF Reader, Winzip (free downloads available) Print Quality Printability: All pages are printable, with the ability to enlarge images Binding Type Binding: Digital (PDF), eliminates physical binding concerns Paper Type Paper Usage: User selects printable pages, minimizing paper use and wear Accessibility Ease Of Use: Single, easy-to-use PDF manual, no flipping through multiple books ⚙️ Engine Specifications Primary Engine Engine Options E12: Inline-4, Inline-6 petrol engines (e.g., M10, M20 families) Performance Example Performance 528I: Approx. 170-180 hp, depending on specific market and tuning Fuel System Fuel Delivery: Carburetor or Bosch L-Jetronic/K-Jetronic fuel injection (model dependent) Engine Management Ignition System: Points-based or electronic ignition systems Cooling System Cooling Type: Liquid-cooled 🔧 Transmission Standard Standard Transmission Type: 4-speed manual transmission Optional Optional Transmission Type: 3-speed or 4-speed automatic transmission (e.g., ZF 3HP22, ZF 4HP22) Features Clutch Type: Single dry plate clutch (manual transmission) 📐 Dimensions Exterior Chassis Type: Monocoque construction Weights Curb Weight Approx: 1300 - 1500 kg (depending on engine and equipment) 🛡️ Safety Features Ratings Safety Ratings: No official standardized crash test ratings from modern bodies (e.g., NHTSA, Euro NCAP) for this era Active Features Active Safety Features: Four-wheel disc brakes (ventilated front discs on most models), power-assisted brakes, independent front suspension Passive Features Passive Safety Features: Reinforced safety cage, crumple zones, padded interior, three-point seat belts (retractable front) 💡 Technology Features Infotainment Infotainment Features: Basic AM/FM radio, optional cassette player, analog gauges Driver Assistance Driver Assistance Features: Power steering (on most models), limited driver aids by modern standards Connectivity Connectivity Features: N/A (pre-digital era) 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000 - 7,500 miles or 6-12 months (refer to manual for exact specs) Tune Up Interval: Spark plugs, ignition timing, and fuel system checks at regular intervals (e.g., 15,000 - 30,000 miles) Fluid Specifications Engine Oil Spec: API SG or SH classification, viscosity typically 10W-40 or 20W-50 depending on climate (manual confirmation required) Coolant Spec: Mixture of ethylene glycol based antifreeze and distilled water Transmission Fluid Auto: Dexron-II or equivalent (model specific, refer to manual) Brake Fluid Spec: DOT 3 or DOT 4 brake fluid Known Issues Common Issues E12: Rust (especially...