🏷️ Basic Information Identification Make: BMW Model: 320i Model Code: E30 Generation: 2nd Generation (E30) Codes Production Years Covered: 1987-1991 👋 Introduction Market Position Vehicle Segment: Compact Executive Sedan/Coupe Competitive Analysis Key Competitors: Mercedes-Benz 190E, Audi 80/90, Alfa Romeo 75 Key Features Manual Benefit 1: Cost Savings by DIY Repairs Manual Benefit 2: Enhanced Vehicle Knowledge and Understanding Manual Benefit 3: Convenience of Digital Access and Printing Manual Benefit 4: Comprehensive Coverage for All Styles 📋 Manual Details Coverage Areas Vehicle Models: BMW 320, BMW 320i Years Covered: 1987, 1988, 1989, 1990, 1991 Page Count Estimated Pages: Hundreds Manual Type Type: Factory Service Repair Manual Target Audience: Do-it-yourselfer, Experienced Mechanic Language Primary Language: English Format Digital Format: PDF Accessibility: Printable, Web Browser Accessible 📖 Manual Coverage Systems Covered Engine Service Repair: Complete Engine Overhaul, Tuning, Diagnostics Transmission Service Repair: Manual and Automatic Transmission Service, Clutch Replacement Brake System: Hydraulic System, ABS (if equipped), Component Replacement Electrical System: Wiring Diagrams, Component Testing, Electrical Fault Diagnosis Suspension: Front and Rear Suspension Components, Alignment Procedures Steering: Power Steering System, Steering Gearbox, Tie Rods Cooling System: Radiator, Water Pump, Thermostat, Fan Assembly Fuel System: Fuel Pump, Injectors, Fuel Lines, Fuel Tank Fuel Injection: Bosch Motronic System Diagnostics and Repair Emission System: Catalytic Converter, EGR, Air Pump Systems HVAC: Heater Core, A/C System Service and Recharge Chassis Body: Body Panel Repair, Frame Specifications, Sealing Restraint System: Seat Belts, Airbag System (if equipped) Interior: Trim Removal, Seat Replacement, Dashboard Components Differential Drive: Rear Differential Service, CV Joints Axle: Drive Axle Assembly, Wheel Bearings Engine Control System: Motronic ECU diagnostics, sensor testing, actuator control Periodic Lubrication: Chassis lubrication points and schedule Wheel Alignment: Specifications and procedures for front and rear alignment Body And Trim: Interior and exterior trim removal and installation Procedures Included Maintenance: General Maintenance, Periodic Lubrication, Fluid Changes Troubleshooting: Diagnostic Flowcharts, Symptom-Based Troubleshooting Repair: Step-by-Step Repair Instructions for All Major Systems Disassembly Assembly: Complete Disassembly and Reassembly Guides Body Repair: Basic body panel repair and adjustment Diagnostic Procedures: Systematic troubleshooting for common faults Technical Depth Depth: Comprehensive, Detailed, Full Factory Level Illustrations Photos: Hundreds of Photos and Illustrations Wiring Diagrams: Detailed Electrical Wiring Diagrams Included 📊 Manual Specifications File Format File Type: PDF Searchability: Likely Text Searchable (depending on PDF source) Print Quality Printability: Fully Printable Binding Type Binding: N/A (Digital Format) Paper Type Paper Quality: N/A (Digital Format) Software Requirements PDF Reader: Adobe PDF Reader (Free) Compression Utility: Winzip or Equivalent (Free) ⚙️ Engine Specifications Primary Engine Engine Code: M10 (specific variant for 320i) Engine Type: Inline-4 Cylinder, SOHC Displacement: 1990 cc (2.0 Liters) Performance Horsepower Hp: Approx. 125-129 hp @ 5800-6000 rpm (depending on market and tuning) Torque Lb Ft: Approx. 127-130 lb-ft @ 3250-4500 rpm (depending on market and tuning) Fuel System Injection System: Bosch Motronic Electronic Fuel Injection Fuel Type Fuel Grade: Unleaded Gasoline (Premium Recommended) 🔧 Transmission Standard Transmission Type: 4-Speed Manual Optional Transmission Type: 3-Speed or 4-Speed Automatic (ZF) Features Clutch: Hydraulically Actuated Single Dry Plate 📐 Dimensions Exterior Wheelbase: Approx. 2570 mm (101.2 in) Length: Approx. 4325-4345 mm (170.3-171.1 in) Width: Approx. 1640-1680 mm (64.6-66.1 in) Height: Approx. 1380-1415 mm (54.3-55.7 in) Weights Curb Weight: Approx. 1180-1280 kg (2600-2820 lbs) 🛡️ Safety Features Ratings Crash Test Era: Pre-modern crash safety standards, focused on structural integrity Active Features Brakes: Front Ventilated Discs, Rear Solid Discs (ABS optional on later models) Passive Features Airbags: Not standard, optional driver's side airbag on some late models Seatbelts: 3-point front and rear seatbelts 💡 Technology Features Infotainment Audio System: Factory AM/FM radio with cassette player (upgrades common) Driver Assistance ABS: Optional on later models, not standard Connectivity Connectivity Features: None by modern standards 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000-7,500 miles or 1 year (whichever comes first), depending on driving conditions Spark Plug Replacement: Approx. 30,000 miles (depending on spark plug type) Timing Belt Replacement: N/A (M10 engine uses a timing chain) Fluid Specifications Engine Oil Type: API SG or higher, SAE 10W-40 or 15W-50 (consult manual for exact viscosity based on climate) Coolant Type: BMW Blue Antifreeze/Coolant (50/50 mix with distilled water) Brake Fluid Type: DOT 3 or DOT 4 Transmission Fluid Manual: GL-4 Hypoid Gear Oil (SAE 75W-90 or 80W-90) Transmission Fluid Automatic: Dexron II (or equivalent) Differential Fluid: GL-5 Hypoid Gear Oil (SAE 75W-90 or 80W-90) Known Issues Common Issue 1: Cooling system leaks (hoses, radiator, water pump) Common Issue 2: Cracked dashboard and interior plastics due to UV exposure Common Issue 3: Fuel distributor issues or injector leaks Common Issue 4: Bushings and suspension wear (control arm bushings, shock mounts) Common Issue 5: Rust, particularly on rocker panels, wheel arches, and battery tray area 📚 Vehicle History Brand Heritage Bmw Legacy: Renowned for sporty driving dynamics and build quality Model Evolution E30 Development: Introduced as a successor...