🏷️ Basic Information Identification Make: BMW Model: 3 Series Model Variant: 320i Chassis Code: E30 Product Name: BMW 320i E30 Complete Workshop Service Repair Manual 1987 1988 1989 1990 1991 👋 Introduction Market Position Segment: Compact Executive Sedan/Coupe Brand Philosophy: BMW's reputation for 'The Ultimate Driving Machine', emphasizing performance, handling, and build quality. Competitive Analysis Key Competitors: Mercedes-Benz 190E, Audi 80/90, Alfa Romeo 75, Volvo 240, and Japanese rivals like Toyota Cressida, Nissan Maxima. Key Features Design Era: Iconic E30 design, known for its timeless and sporty aesthetic. Driving Dynamics: Renowned for balanced chassis, RWD layout, and engaging driving experience. Build Quality: Typical BMW robust construction and durable materials. 📋 Manual Details Coverage Areas Coverage Years: 1987, 1988, 1989, 1990, 1991 Engine Coverage: 320i models Region Coverage: Likely Global, with specific focus on markets where the 320i E30 was prevalent Page Count Estimated Page Count: Varies by specific publication, typically 500-1000+ pages for comprehensive manuals Manual Type Manual Type: Workshop Service Repair Manual Language Language: English (Standard for most professional workshop manuals) Format Format: Downloadable (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul, diagnosis, repair of all engine components, including cylinder head, block, pistons, crankshaft, camshafts, timing system. Engine Management: Fuel injection system (Motronic), ignition system, emissions control, sensors, actuators, ECU diagnosis and troubleshooting. Transmission: Manual and Automatic transmission removal, disassembly, inspection, repair, and reassembly. Clutch system. Drivetrain: Driveshafts, differential, axles, wheel bearings, U-joints. Suspension: Front and rear suspension components, springs, shock absorbers, control arms, bushings, steering linkage. Steering: Steering rack, power steering system, steering column, alignment procedures. Brakes: Front and rear brake systems (disc brakes), ABS (if equipped), hydraulic lines, calipers, master cylinder, brake fluid specifications. Electrical System: Wiring diagrams, charging system (alternator, battery), starting system (starter motor), lighting system, fuses, relays, diagnostic connectors. Body And Chassis: Body panel repair, door mechanisms, interior trim, glass replacement, chassis lubrication, corrosion prevention. HVAC: Heating, ventilation, and air conditioning system diagnosis and repair. Fuel System: Fuel tank, fuel pump, fuel lines, fuel injectors, fuel pressure testing. Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug replacement, fluid level checks and top-offs, belt inspection and replacement. Troubleshooting: Diagnostic procedures for common and uncommon faults, symptom-based troubleshooting guides. Major Repairs: Engine rebuilding, transmission overhauls, suspension component replacement, brake caliper rebuilding. Component Replacement: Step-by-step instructions for replacing virtually any component on the vehicle. Diagnostic Codes: Information on reading and interpreting diagnostic trouble codes (DTCs) if applicable to the era and system. Technical Specifications: Torque values, clearances, timing settings, fluid capacities, and other critical data. Technical Depth Depth Level: Comprehensive (from basic maintenance to full engine and transmission rebuilds) Detail Level: Detailed, step-by-step instructions with exploded views, diagrams, and illustrations. 📊 Manual Specifications File Format File Type: PDF Searchability: Typically searchable text within the PDF for quick information retrieval. Print Quality Print Readability: Designed for clarity, though original scan quality can vary for older manuals. Binding Type Binding: N/A (Downloadable PDF) Paper Type Paper Quality: N/A (Downloadable PDF) ⚙️ Engine Specifications Primary Engine Engine Code: M20B20 (for the 320i, common in European markets) Engine Type: Inline 6-cylinder, SOHC Displacement: 1990 cc (2.0 Liters) Bore X Stroke: 80.0 mm x 66.0 mm Performance Horsepower: 125-129 hp (DIN) @ 6000 rpm (approximate, varies by market and year) Torque: 174 Nm / 129 lb-ft (DIN) @ 4300 rpm (approximate, varies by market and year) Fuel System Fuel Delivery: Bosch Motronic fuel injection (early versions might use L-Jetronic or similar, but 1987-1991 usually Motronic) Fuel Type: Unleaded Gasoline (Premium Recommended) Engine Management Ignition System: Electronic Ignition (Distributorless ignition or distributor with coil) 🔧 Transmission Standard Transmission Type: 4-speed or 5-speed Manual Transmission Optional Transmission Type: 3-speed or 4-speed Automatic Transmission (ZF 4HP22) Features Clutch Type: Hydraulically actuated single dry plate clutch (for manual) Fluid Specifications Manual Transmission Fluid: BMW recommended manual transmission fluid (e.g., Castrol TAF-X or equivalent API GL-4/GL-5 synthetic) Automatic Transmission Fluid: Dexron II or Dexron III (or equivalent ATF) 📐 Dimensions Exterior Length: Approx. 4300 mm (169.3 in) Width: Approx. 1670 mm (65.7 in) Height: Approx. 1380 mm (54.3 in) Wheelbase: Approx. 2570 mm (101.2 in) Weights Curb Weight: Approx. 1200-1300 kg (2646-2866 lbs) Gross Vehicle Weight: Approx. 1700 kg (3748 lbs) 🛡️ Safety Features Ratings Crash Test Data: Limited official global crash test data for this specific era and variant. E30 chassis generally considered robust for its time. Active Features ABS: Optional on most models, becoming more common in later years. Traction Control: Rarely, if ever, available on the 320i E30. Passive Features Seatbelts: Three-point seatbelts front and rear. Airbags: Driver's side airbag became available in later model years (optional, not standard). Crumple Zones: Designed with front and rear crumple zones. 💡 Technology Features Infotainment Radio System: Factory AM/FM radio with cassette player was common, often with basic EQ settings. Upgraded sound systems...