🏷️ Basic Information Identification Make: BMW Model: 320i Chassis Code: E30 Codes Model Code Prefix: 116 Engine Code Prefix: M20 👋 Introduction Market Position Segment: Compact Executive Sedan/Coupe/Convertible Brand Perception: Known for performance, handling, and premium build quality within its class. Competitive Analysis Key Competitors: Mercedes-Benz 190E, Audi 80/90, Alfa Romeo 75, Saab 900, Volvo 240. Key Features Driving Dynamics: Renowned for BMW's signature balanced chassis, rear-wheel drive, and engaging driving experience. Build Quality: Solid construction and durable materials characteristic of BMW engineering. Design Philosophy: Classic BMW styling with clean lines, iconic kidney grille, and functional ergonomics. 📋 Manual Details Coverage Areas Model Years Covered: 1987, 1988, 1989, 1990, 1991 Specific Models Covered: 320i Page Count Estimated Page Count: Hundreds of pages (specific number not provided, but implies comprehensive coverage) Manual Type Type: Service and Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed procedures for engine disassembly, inspection, repair, and reassembly, including cylinder head, pistons, crankshaft, camshaft, timing belt, oil pump, and cooling system. Engine Management: Diagnosis and repair of fuel injection (Bosch Motronic), ignition system, sensors (e.g., MAF, O2, crank position), actuators, and ECU. Transmission Manual: Repair and maintenance of the Getrag 260 5-speed manual gearbox, including clutch, driveshaft, and differential. Transmission Automatic: Repair and maintenance of the ZF 4HP22 automatic transmission, including torque converter, valve body, and electronic control unit. Suspension: Front MacPherson struts, rear semi-trailing arms, bushings, shocks, springs, and alignment specifications. Steering: Power steering system (recirculating ball), steering rack, tie rods, and fluid specifications. Brakes: Front and rear disc brakes, ABS system (if equipped), brake fluid specifications, bleeding procedures, and component replacement. Electrical System: Wiring diagrams, fuse box layout, component testing, starter, alternator, battery, lighting, and auxiliary circuits. Fuel System: Fuel pump, fuel filter, fuel lines, fuel tank, and fuel pressure testing. Exhaust System: Exhaust manifolds, catalytic converter, mufflers, and pipe replacement. HVAC: Heating, ventilation, and air conditioning system components, refrigerant, and troubleshooting. Body And Interior: Body panel removal, door mechanisms, trim, seats, and interior components. Procedures Included Scheduled Maintenance: Detailed steps and recommended intervals for oil changes, filter replacements, fluid checks, and general tune-ups. Troubleshooting Guides: Systematic diagnostic procedures for common and uncommon problems, including symptom-based troubleshooting. Component Replacement: Step-by-step instructions for replacing major components such as engine, transmission, brakes, suspension parts, and electrical modules. Rebuilding Procedures: Comprehensive guidance for rebuilding key mechanical assemblies like the engine and transmission. Restoration Tips: Guidance relevant to refurbishing and restoring the vehicle's original condition. Technical Depth Diagnostic Capabilities: Advanced diagnostic procedures for engine management systems, including fault code interpretation and sensor data analysis. Torque Specifications: Precise torque values for all critical fasteners during assembly and disassembly. Clearances And Tolerances: Specifications for engine component clearances (e.g., piston ring gap, bearing clearances) and other critical measurements. Wiring Diagrams: Detailed, color-coded wiring diagrams for all vehicle systems. Special Tools: Identification and usage of specialized tools required for specific repair procedures. 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Searchability: Likely text-searchable for efficient information retrieval. Print Quality Resolution: High resolution, suitable for printing individual pages or the entire manual. Binding Type Binding Method: N/A (Digital PDF format) Paper Type Paper Quality: N/A (Digital PDF format) ⚙️ Engine Specifications Primary Engine Engine Family: M20 Engine Configuration: Inline 6-cylinder Displacement: 1.990 Liters (1990 cc) Bore X Stroke: 80.0 mm x 66.0 mm Compression Ratio: 8.8:1 (typical for M20B20) Valvetrain: SOHC (Single Overhead Camshaft), 2 valves per cylinder Performance Horsepower: 129 PS (127 hp; 95 kW) at 6000 rpm (approximate, may vary by market) Torque: 174 Nm (128 lb-ft) at 4300 rpm (approximate, may vary by market) Fuel System Fuel Injection: Bosch Motronic electronic fuel injection Fuel Type: Unleaded gasoline Octane Rating: 91 RON / 87 AKI (recommended) 🔧 Transmission Standard Type: Getrag 260 5-speed Manual Transmission Optional Type: ZF 4HP22 4-speed Automatic Transmission Features Clutch Manual: Hydraulically operated single dry plate clutch Gear Ratios Manual: 1st: 4.00:1, 2nd: 2.13:1, 3rd: 1.30:1, 4th: 1.00:1, 5th: 0.81:1, Reverse: 3.77:1 (approximate, specific ratios may vary) Transmission Fluid Manual: BMW MTF LT-2 or equivalent (e.g., Pentosin MTF 2.0) Transmission Fluid Automatic: Dexron III / Mercon (or equivalent ATF) 📐 Dimensions Exterior Length: 4325 mm (170.3 in) Width: 1640 mm (64.6 in) Height: 1380 mm (54.3 in) Wheelbase: 2570 mm (101.2 in) Front Track: 1390 mm (54.7 in) Rear Track: 1405 mm (55.3 in) Weights Curb Weight: 1260 kg (2778 lbs) for manual transmission (approximate) Gross Vehicle Weight Rating: 1750 kg (approximate) Fuel Capacity: 55 Liters (14.5 US gal) 🛡️ Safety Features Ratings Crash Test Results: E30 models generally performed well for their era, though specific official ratings from modern agencies are limited. Active Features ABS: Anti-lock Braking System (optional on many models, standard on later versions or specific trims) Traction Control: Not typically available on the...