🏷️ Basic Information Identification Make: BMW Model: 3 Series (E21) Sub Models Covered: 320/6, 323i Chassis Code: E21 Product Name: BMW 320 323i 3 Series E21 1975-1983 Workshop Service Repair Manual 👋 Introduction Market Position Target Audience: DIY enthusiasts, independent repair shops, BMW owners Competitive Analysis Value Proposition: Provides comprehensive repair and service information for a classic BMW model at a fraction of the cost of dealership services or physical manuals. Key Features Format Advantage: Electronic format allows for easy searching, printing of specific pages, and accessibility across multiple devices. Source Credibility: Factory manual standard, used by professionals worldwide. 📋 Manual Details Coverage Areas Applicable Years: 1975-1983 Engine Coverage: 2.0L, 2.3L Transmission Coverage: 4-speed Manual (Getrag), 3-speed Automatic (ZF/3 HP-22) Page Count Estimated Page Count: N/A (digital format) Manual Type Manual Type: Workshop Service Repair Manual Language Language: English (assumed based on product description) Format File Format: PDF Delivery Format: ZIP archive 📖 Manual Coverage Systems Covered General Hints: Yes Maintenance: Yes Engine Mechanical: Yes Engine Electrical Systems: Yes Fuel System: Yes Cooling System: Yes (Radiator) Exhaust System: Yes Clutch System: Yes Manual Transmission: Yes Automatic Transmission: Yes Gearshift Mechanism: Yes Drivetrain: Yes (Driveshaft, Rear Axle) Steering System: Yes Suspension System: Yes Brake System: Yes Pedal Assembly: Yes Wheels And Tires: Yes Bodywork: Yes Interior Features: Yes (Seats/Sliding Roof) Chassis Electrical: Yes Instrumentation: Yes Heating And Air Conditioning: Yes Audio Systems: Yes (Radio & Accessories) Equipment Parts: Yes Paint Work: Yes Procedures Included Repair Procedures: Yes (detailed step-by-step) Maintenance Procedures: Yes Troubleshooting: Implied by workshop manual nature Diagnostics: Implied by workshop manual nature Technical Depth Technical Scope: Comprehensive workshop level, suitable for DIY and professional mechanics Illustrations: Detailed illustrations and diagrams/pictures Wiring Diagrams: No wiring diagrams included (stated as scanned manual) 📊 Manual Specifications File Format File Size: 226 MB File Type: PDF Software Requirement: Adobe Acrobat Reader Extraction Software: WinZip or WinRAR Print Quality Printability: Printable pages Binding Type Binding: N/A (digital format) Paper Type Paper Type: N/A (digital format) ⚙️ Engine Specifications Primary Engine 320 6 Engine Code Variants: M20 (e.g., M20B20) Displacement: 2.0 Liters (1990 cc) Configuration: Inline 6-cylinder Fuel System: Likely Carbureted (Solex/Zenith) or early Bosch L-Jetronic fuel injection depending on specific market and year. Power Output Est: Approx. 100-120 hp Primary Engine 323 I Engine Code Variants: M20 (e.g., M20B23) Displacement: 2.3 Liters (2316 cc) Configuration: Inline 6-cylinder Fuel System: Bosch L-Jetronic fuel injection Power Output Est: Approx. 140-145 hp 🔧 Transmission Standard 320 6 Transmission Type: 4-Speed Manual Manufacturer: Getrag Optional 323 I And Later 320 6 Transmission Type: 3-Speed Automatic Manufacturer: ZF Model: 3 HP-22 Features Gearshift Mechanism Coverage: Yes 📐 Dimensions Exterior General Body Styles: 2-door sedan (coupe), later models may have 4-door variants in some markets. Weights General Curb Weight Est: Approx. 1100-1250 kg (2425-2755 lbs) 🛡️ Safety Features Ratings General Historical Safety Standards: Reflects 1970s/early 1980s safety regulations, generally lacking modern active safety features and advanced passive safety structures. Passive Features Passive Safety: Seat belts, crumple zones (basic design). 💡 Technology Features Infotainment General Infotainment Features: Basic analogue radio, cassette player (optional). Focus on driving rather than advanced electronics. Driver Assistance General Driver Assistance: None (this era predates modern driver assistance systems). 🔧 Maintenance Service Intervals General Typical Oil Change Interval: Likely every 5,000-7,500 miles or 6-12 months, depending on usage and oil type. Refer to manual for specific recommendations. Fluid Specifications Engine Oil Type Est: API SF/SG, SAE 20W-50 or 10W-40 depending on climate. Manual will specify. Coolant Type Est: Ethylene glycol-based antifreeze with corrosion inhibitors. Manual will specify mixture ratio. Transmission Fluid Manual Est: GL-4 gear oil, e.g., SAE 75W-90 or 80W-90. Manual will specify. Transmission Fluid Auto Est: Dexron III (or equivalent) automatic transmission fluid. Manual will specify. Known Issues Common E21 Issues: Rust (especially around wheel arches, sills, and strut towers), aging rubber components (bushings, hoses), fuel system issues (clogged injectors/carburetors), electrical gremlins, differential seals. 📚 Vehicle History Brand Heritage Brand Focus: BMW's reputation for sporty driving dynamics and engineering excellence. Model Evolution E21 Significance: First generation of the BMW 3 Series, establishing the benchmark for compact executive sports sedans. Known for its ' Hofmeister kink' in the C-pillar design. Production Production Period: 1975-1983 Manufacturing Locations: Primarily Germany. 🏆 Awards & Recognition Recognitions General Automotive Press Reputation: The E21 chassis was widely praised for its handling, ride comfort, and build quality, cementing BMW's reputation in the sports sedan segment.