🏷️ Basic Information Identification Make: BMW Model: 323i Production Years Covered: 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984 Codes Chassis Code: E21 👋 Introduction Market Position Segment: Compact Executive Sedan / Coupe Target Audience: Enthusiasts, DIY mechanics, classic car owners, restoration specialists Competitive Analysis Competitors: Mercedes-Benz W123, Audi 80/Fox, Alfa Romeo Alfetta, Volvo 240 Series Key Features Vehicle Highlight: Sporty handling, refined ride, powerful inline-six engine, quality German engineering Manual Value Proposition: Essential tool for maintaining the performance and longevity of a classic BMW. 📋 Manual Details Coverage Areas Primary Coverage: Workshop Repair and Service Page Count Estimated Page Count: Varies by specific edition, typically 500+ pages for comprehensive coverage Manual Type Type: Service Manual / Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: M20B23 engine: maintenance, repair, diagnostics, overhaul, tuning Fuel System: Fuel injection (Bosch L-Jetronic), fuel pump, lines, injectors, troubleshooting Ignition System: Distributor, ignition coil, spark plugs, timing, electronic control module (ECM) Transmission: Manual (Getrag 245) and Automatic (ZF 3HP18) transmissions: servicing, repair, fluid specifications Drivetrain: Clutch, driveshaft, differential, rear axle assembly: maintenance and repair Brakes: Front discs, rear drums (or discs on some models), hydraulic system, parking brake, ABS (if equipped): service and overhaul Suspension: Front MacPherson struts, rear semi-trailing arms, shock absorbers, bushings: repair and alignment specifications Steering: Recirculating ball steering system, power steering components (if equipped): maintenance and repair Electrical System: Wiring diagrams, battery, alternator, starter motor, lighting, instrumentation, fuses, relays, diagnostic procedures Bodywork And Chassis: Body panel removal/installation, door mechanisms, window regulators, seals, rust prevention, structural repair basics Heating And Ventilation: HVAC system, blower motor, heater core, A/C system (if equipped): diagnosis and repair Climate Control: Heater core, blower fan, defrost systems, basic ventilation. Procedures Included Maintenance: Oil changes, filter replacements, tune-ups, fluid checks, belt inspections, chassis lubrication Troubleshooting: Systematic diagnostic procedures for common and complex issues, fault codes (where applicable) Repair: Step-by-step instructions for component removal, repair, and reinstallation Overhaul: Engine and transmission rebuild procedures, detailed component specifications Adjustments: Valve adjustments, ignition timing, carburetor adjustments (if applicable), brake adjustments Diagnostics: Electrical system troubleshooting using wiring diagrams, fuel system pressure testing, ignition system analysis. Technical Depth Depth: Comprehensive: Covers basic maintenance to complete engine and transmission overhauls, including electrical diagnostics and chassis repairs. 📊 Manual Specifications File Format File Type: PDF Searchability: Typically text-searchable for quick information retrieval Print Quality Quality: High-resolution scans of original factory manuals, ensuring clarity of diagrams and text Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code: M20B23 Engine Type: Inline 6-cylinder, SOHC (Single Overhead Camshaft) Displacement: 2316 cc (2.3 Liters) Performance Horsepower Peak: Approx. 141-143 hp (105-107 kW) at 5300 rpm (DIN) Torque Peak: Approx. 190-195 Nm (140-144 lb-ft) at 4000 rpm (DIN) Fuel System Fuel Delivery: Bosch L-Jetronic (Air-flow controlled electronic fuel injection) Recommended Fuel: Unleaded gasoline, 95 RON (Premium) or equivalent Cooling System Coolant Type: Ethylene glycol based antifreeze/coolant Engine Type Block Material: Cast Iron Head Material: Aluminum Alloy 🔧 Transmission Standard Type: 4-speed Manual (Getrag 245) or optional 5-speed Manual Optional Type: 3-speed Automatic (ZF 3HP18) Features Manual Fluid Type: GL-4 Gear Oil (e.g., Castrol EPX 80W/90 or equivalent) Automatic Fluid Type: Dexron III (or equivalent ATF fluid) 📐 Dimensions Exterior Length: Approx. 4,360 mm (171.7 in) Width: Approx. 1,660 mm (65.4 in) Height: Approx. 1,380 mm (54.3 in) Wheelbase: Approx. 2,565 mm (101.0 in) Wheel Base: 2565 mm (101.0 in) Weights Curb Weight: Approx. 1,200 - 1,300 kg (2,645 - 2,866 lbs), depending on body style and equipment 🛡️ Safety Features Ratings Crash Test Data: Limited official crash test data from the era; relied on BMW's internal safety engineering standards. Active Features Braking System: Front ventilated discs, rear drums standard; optional rear discs on later models. Passive Features Construction: Reinforced passenger cell, safety-designed steering column. Seatbelts: Three-point inertia reel seatbelts in the front. 💡 Technology Features Infotainment Audio System: Factory AM/FM radio with cassette player (optional). Aftermarket upgrades common. Driver Assistance Features: Basic for the era; focus on mechanical feedback and driver engagement. Features like cruise control were optional. Connectivity Features: No modern connectivity features; primarily analog systems. 🔧 Maintenance Service Intervals Oil Change: Every 5,000-7,500 miles or 6-12 months, whichever comes first. Tune Up: Spark plugs, ignition timing, air filter replacement at 20,000-30,000 mile intervals. Coolant Flush: Every 2 years or 30,000 miles. Fluid Specifications Engine Oil: SAE 20W-50 or 10W-40, API SF/CD quality or better (check manual for specific viscosity recommendations). Coolant Capacity: Approx. 8.0 Liters (8.5 US Quarts) Brake Fluid: DOT 3 or DOT 4 hydraulic fluid. Manual Transmission Capacity: Approx. 1.4 Liters (1.5 US Quarts) Automatic Transmission Capacity: Approx. 7.0 Liters (7.4 US Quarts) Known Issues Common Problems: Fuel injection system issues (cold start valve, airflow meter), coolant leaks (hose...