🏷️ Basic Information Identification Make: BMW Model: 3 Series Model Code: E30 Engine Variant: 316i Production Years: 1988-1991 Codes Engine Code Primary: M40B16 👋 Introduction Market Position Vehicle Class: Compact Executive Sedan/Coupe/Convertible Target Audience: Enthusiasts and owners seeking detailed maintenance and repair knowledge for their E30 316i. Competitive Analysis Key Competitors: Mercedes-Benz 190E, Audi 80/90, Alfa Romeo 75, Ford Sierra, Peugeot 405. Key Features Driving Dynamics: Renowned for its balanced chassis, rear-wheel drive, and communicative steering, establishing the E30 as a driver's car. Build Quality: Typical BMW build quality of the era, known for durability and longevity when properly maintained. Design Era: Iconic 'E30' design language, a blend of timeless styling and sporty proportions. 📋 Manual Details Coverage Areas Manual Type: Comprehensive Service and Repair Manual Language: English Format: Digital (PDF) Page Count Estimated Page Count: 500+ 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed diagnosis, repair, and overhaul procedures for the M40B16 engine, including cylinder head, block, pistons, crankshaft, camshaft, timing, and lubrication systems. Fuel System: Bosch Motronic electronic fuel injection (EFI) system diagnosis, component testing (injectors, fuel pump, pressure regulator), fuel filter replacement, and troubleshooting. Ignition System: Diagnosis and repair of the electronic ignition system, including coil, distributor (if applicable for early M40 variants or associated systems), spark plugs, and ECU interaction. Cooling System: Radiator, fan, water pump, thermostat, hoses, and heater core servicing, troubleshooting leaks, and coolant specifications. Exhaust System: Catalytic converter, mufflers, pipes, and exhaust manifold inspection, repair, and replacement. Transmission Manual: Repair, overhaul, and fluid specifications for the Getrag 260 5-speed manual gearbox, including clutch operation and linkage adjustment. Transmission Automatic: Diagnosis, fluid servicing, and troubleshooting for the ZF 4HP22 automatic transmission (if equipped as optional). Drivetrain: Rear axle, driveshaft, CV joints, and wheel bearings inspection and service. Suspension Front: MacPherson strut system, control arms, ball joints, bushings, sway bar, and wheel bearing servicing. Suspension Rear: Semi-trailing arm suspension, shock absorbers, springs, bushings, and sway bar servicing. Steering System: Power steering pump, rack and pinion, fluid, and tie rod end diagnosis and repair. Brake System Front: Disc brake system, caliper, rotor, pads, and brake fluid servicing. Brake System Rear: Disc brake system (or drum depending on specific market/variant), caliper/wheel cylinder, rotor/drum, pads/shoes, and parking brake servicing. Electrical System: Wiring diagrams, component testing (alternator, starter, battery), fuses, relays, lighting, and accessory circuits. Interior Trim: Seat removal, dashboard disassembly, door panel removal, and headliner servicing. Body Exterior: Door, hood, trunk panel alignment, bumper removal, and glass replacement procedures. Procedures Included Routine Maintenance: Oil change, filter replacement, spark plug replacement, air filter replacement, coolant flush, brake fluid flush, transmission fluid change, differential fluid change. Troubleshooting: Systematic diagnostic procedures for common and uncommon faults across all major vehicle systems, including fault code interpretation (where applicable for EFI). Repair Overhaul: Detailed step-by-step instructions for component removal, disassembly, inspection, repair, reassembly, and installation. Adjustments: Engine timing, carburetor settings (if applicable to specific market variants or older models, though 316i is EFI), clutch linkage, parking brake, and idle speed adjustments. Component Replacement: Specific procedures for replacing parts such as water pump, alternator, starter motor, fuel pump, brake master cylinder, wheel bearings, and more. Wiring Diagrams: Comprehensive electrical schematics for all major vehicle systems, aiding in diagnosis and repair of electrical faults. Technical Depth Diagnostic Capability: Advanced diagnostic information, including sensor data interpretation for EFI, ignition timing analysis, and component testing methods. Rebuild Procedures: Complete engine and transmission overhaul procedures with torque specifications, tolerances, and assembly sequences. Specification Data: Detailed technical specifications for all components, including clearances, pressures, voltages, and capacities. 📊 Manual Specifications File Format Digital Format: PDF (Portable Document Format) Searchability: Fully searchable text for quick access to information. Printability: Printable pages for workshop use. Print Quality Image Resolution: High-resolution images and diagrams for clarity. Binding Type Physical Manual Binding: N/A (Digital Product) Paper Type Physical Manual Paper: N/A (Digital Product) ⚙️ Engine Specifications Primary Engine Engine Name: M40B16 Engine Type: Inline-4 Cylinder, DOHC (Double Overhead Camshaft) Displacement: 1596 cc (1.6 Liters) Bore X Stroke: 84.0 mm x 71.0 mm Compression Ratio: 8.5:1 Performance Horsepower Hp: 100 hp (74 kW) at 5800 rpm Torque Lb Ft: 140 Nm (103 lb-ft) at 4000 rpm Fuel System Fuel Delivery: Bosch Motronic ML 4.1 (or similar EFI variant) Fuel Type: Unleaded Gasoline (RON 91/95 recommended) Cooling System Cooling Type: Water-cooled 🔧 Transmission Standard Type: Getrag 260 5-Speed Manual Transmission Optional Type: ZF 4HP22 4-Speed Automatic Transmission Features Clutch Type: Hydraulically operated single dry plate clutch Final Drive Ratio: Typically 3.64:1 or similar, depending on variant 📐 Dimensions Exterior Body Styles: 2-door Sedan, 4-door Sedan, 2-door Convertible, 2-door Coupe Length: Approx. 4330 mm (170.5 in) Width: Approx. 1680 mm (66.1 in) Height: Approx. 1380 mm (54.3 in) for Sedan Wheelbase: Approx. 2570 mm (101.2 in) Weights Curb Weight Kg: Approx. 1150-1250 kg (depending on body...