🏷️ Basic Information Identification Make: BMW Model: 3 Series Model Variant: 325i Year: 1989 Codes Chassis Code: E30 Engine Code Common: M20B25 👋 Introduction Market Position Vehicle Segment: Compact Executive Sedan/Coupe Target Audience: Performance-oriented luxury car buyers, enthusiasts Competitive Analysis Primary Competitors 1989: Mercedes-Benz 190E, Audi 80/90, Alfa Romeo 75, Volvo 240/740 Competitive Advantage: Superior handling and driving dynamics, advanced engineering, brand prestige Key Features Driving Experience: Renowned for its balanced chassis, rear-wheel drive, and engaging driving feel Design Heritage: Part of the iconic E30 generation, known for its timeless and muscular design Engineering Philosophy: Typical BMW focus on driver engagement, performance, and build quality 📋 Manual Details Coverage Areas Primary Coverage: Service, Repair, Workshop Component Coverage: Engine, Drivetrain, Suspension, Steering, Brakes, Electrical System, Bodywork, Climate Control, Fuel System, Exhaust System, Cooling System, Lubrication System, Interior Trim, Exterior Trim, Diagnostics Page Count Estimated Page Count: Approximately 1000+ pages (typical for comprehensive workshop manuals of this era) Manual Type Type: Workshop Manual / Service Manual / Repair Manual Language Language: English Format Format: Likely Printed (Original Factory) or PDF Digital Format 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, cylinder head, block, pistons, crankshaft, camshaft, timing, valves, lubrication, cooling system overhaul, fuel injection system (Bosch Motronic M2.7 or M2.8) Engine Management: Ignition system, fuel delivery, emissions control, troubleshooting of electronic control unit (ECU) and sensors Transmission Manual: Gearbox overhaul, clutch replacement, driveshaft service Transmission Automatic: Automatic transmission servicing, troubleshooting, overhaul (if applicable to 325i models of this year) Suspension And Steering: Front and rear suspension components, shock absorbers, springs, control arms, subframes, steering rack, power steering system Brakes: Front and rear brake systems (discs), caliper service, master cylinder, ABS system (if equipped), brake bleeding procedures Electrical System: Wiring diagrams, lighting, starter, alternator, battery, fuses, relays, instrument cluster, power windows, central locking Body And Chassis: Body panel removal and installation, door mechanisms, glass replacement, structural repair guidance, rust prevention Climate Control: HVAC system diagnosis and repair, refrigerant handling (R12) Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug changes, fluid checks and top-offs, belt inspection and replacement Troubleshooting: Step-by-step diagnostic procedures for common and uncommon issues, fault code interpretation (where applicable) Major Repairs: Engine rebuilds, transmission overhauls, suspension component replacement, brake system overhauls Component Replacement: Detailed instructions for replacing specific parts like alternators, starters, fuel pumps, radiators, water pumps, CV joints Adjustment And Calibration: Valve adjustments (if applicable), timing belt tension adjustment, idle speed adjustment Technical Depth Level Of Detail: Comprehensive, suitable for professional mechanics and experienced DIY enthusiasts Diagnostic Capabilities: Includes diagnostic charts, symptom-to-cause analysis, and electrical troubleshooting based on wiring diagrams Torque Specifications: Detailed torque values for all critical fasteners Special Tools: Lists and descriptions of special tools required for specific procedures Diagrams And Illustrations: Extensive use of exploded views, schematics, and detailed illustrations for clarity 📊 Manual Specifications File Format Digital Format: PDF (if digital), typically with searchable text and high-resolution images Print Quality Printed Quality: High-quality printing with durable paper stock and clear diagrams (for original manuals) Binding Type Printed Binding: Professional binding (e.g., perfect bound, spiral bound) for ease of use in a workshop environment Paper Type Printed Paper: Durable, often glossy paper to withstand workshop conditions and highlight diagrams ⚙️ Engine Specifications Primary Engine Engine Type: Inline-6 Cylinder, DOHC (Double Overhead Camshaft) Displacement: 2.5 Liters (2494 cc) Bore X Stroke: 84 mm x 75 mm Compression Ratio: 8.5:1 or 9.0:1 (depending on specific engine variant) Engine Code: M20B25 Performance Horsepower: 168-171 hp @ 5800-6000 rpm (depending on market and specific tuning) Torque: 164-167 lb-ft (222-226 Nm) @ 4300-4500 rpm Fuel System Fuel Injection: Bosch Motronic Electronic Fuel Injection (EFI), either M2.7 or M2.8 Fuel Type: Unleaded Gasoline (Octane rating as per owner's manual) Cooling System Cooling Type: Water-cooled, pressurized system Lubrication System Oil Capacity: Approx. 5.0-5.5 liters (with filter) Timing Timing Belt Type: Timing Belt (CRITICAL REPLACEMENT INTERVAL) 🔧 Transmission Standard Transmission Type: Getrag 260 5-speed Manual Transmission Optional Transmission Type: ZF 4HP22 4-speed Automatic Transmission Features Clutch: Hydraulically actuated single dry plate clutch Driveshaft: RWD (Rear Wheel Drive) with universal joints and guibo flex disc Fluid Specifications Manual Transmission Fluid: API GL-4 Gear Oil (e.g., Pentosin MTF 75W-80 or equivalent) Automatic Transmission Fluid: ATF Dexron II or Dexron III (check manual for exact spec) 📐 Dimensions Exterior Length: Approx. 4340 mm (170.9 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. 1250-1350 kg (2756-2976 lbs) Gross Vehicle Weight Rating: Varies by body style and options Cargo Trunk Capacity: Approx. 430 liters (15.2 cu ft) 🛡️ Safety Features Ratings Crash Test Performance: While official ratings from modern agencies are not directly comparable, the E30 chassis was known for its robust safety cage and build quality for its era. 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