🏷️ Basic Information Identification Make: BMW Model: 325i Convertible Generation Chassis Code: E30 Production Years Covered: 1988, 1989, 1990, 1991, 1992 Codes Engine Code Common: M20B25 👋 Introduction Market Position Positioning: Targeted at BMW 325i Convertible owners and independent repair shops seeking factory-accurate information. Competitive Analysis Alternatives: Offers a significant advantage over generic repair guides by providing vehicle-specific, dealer-level data. Key Features Unique Selling Points: Downloadable, printable, high-quality factory manual, comprehensive coverage, step-by-step instructions, diagrams, wiring schematics, vehicle-specific. 📋 Manual Details Coverage Areas Scope: All models and all repairs A-Z Page Count Estimated Pages: Large, comprehensive (specific count not provided, but file size suggests extensive content) Manual Type Type: Factory Service/Repair Manual Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine (Cooling, Lubrication, Fuel, Control), Transmission, Clutch, Driveline, Exhaust System, Starting System, Charging System Chassis: Front Suspension, Rear Suspension, Steering System, Brake System, Parking Brake System, Wheels & Tires Electrical Electronics: Interior Lighting, Audio/Visual/Navigation, Power Window Control, Charging System, Power Supply/Ground/Circuit Elements, Meter/Warning Lamp/Indicator, Security Control System, SRS Airbag System, Sonar System Body Interior Exterior: Body Control System, Door & Lock, Seat, Wiper & Washer, Roof, Seat Belt Control, Glass & Window System, Power Outlet, Mirrors, Exterior, Defogger, Ventilation System, Heater & Air Conditioning System Procedures Included Maintenance: Scheduled maintenance, fluid changes, lubrication, filter replacements, inspections Diagnostics Troubleshooting: Step-by-step diagnostic procedures, troubleshooting guides for various systems and common issues Repair Rebuild: Complete step-by-step repair and overhaul procedures for all major components and systems Technical Information: Wiring schematics, diagrams, illustrations, specifications, torque values Technical Depth Depth: Factory-level, detailed, covering all aspects from basic maintenance to complex diagnostics and major component overhauls 📊 Manual Specifications File Format Compatibility: All Versions of Windows (XP, Vista 32/64, ME, 98, NT, 2000) & Mac Requirements: Adobe PDF Reader & WinZip File Size: Approximately 45-46 MB Print Quality Printability: All pages are printable, allows for enlarged printing of images/diagrams Binding Type Format Type: Digital Download (CD-Manual equivalent) Paper Type Digital Medium: N/A (Digital File) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 6-cylinder, naturally aspirated Displacement: 2.5 Liters (2494 cc) Engine Codes: M20B25 Performance Horsepower: Approx. 168 hp @ 5800 rpm (US spec) Torque: Approx. 164 lb-ft @ 4300 rpm (US spec) Fuel System Fuel Delivery: Bosch Motronic electronic fuel injection (EFI) Fuel Type: Unleaded gasoline (Octane rating as per BMW specification) 🔧 Transmission Standard Transmission Type: 5-speed manual Optional Transmission Type: 4-speed automatic (optional) Features Clutch Type: Hydraulically actuated single dry plate clutch 📐 Dimensions Exterior Length: Approx. 168.5 inches Width: Approx. 66.5 inches Height: Approx. 53.1 inches (convertible top up) Weights Curb Weight: Approx. 2800-3000 lbs (depending on options) Gross Vehicle Weight Rating: N/A (Refer to vehicle VIN plate) 🛡️ Safety Features Ratings Crash Test Results: Era-specific safety standards, manual covers SRS Airbag system components and operation. Active Features Braking System: Front ventilated discs, rear solid discs (ABS optional on some models) Steering: Power assisted rack and pinion Passive Features Airbags: Driver-side airbag (standard on later models, check specific vehicle) Seat Belts: Three-point front seat belts, rear lap belts. 💡 Technology Features Infotainment Audio System: Factory AM/FM cassette stereo, optional premium sound systems. Manual covers installation and repair of these systems. Navigation: Early BMW navigation systems may have been available as dealer options; manual covers AV system components. Driver Assistance ABS: Anti-lock Braking System (ABS) was an optional feature on many models; manual provides ABS system diagnostics and repair. Connectivity Onboard Computer: Optional On-Board Computer (OBC) with functions like fuel economy, range estimation, etc. Manual details troubleshooting and repair of OBC components. 🔧 Maintenance Service Intervals Oil Change: Typically every 7,500 - 10,000 miles or annually (consult specific manual section for exact recommendation). Spark Plugs: Recommended replacement at intervals based on type (e.g., platinum plugs often have longer service life). Coolant Flush: Recommended every 2-3 years or as per BMW service schedule. Fluid Specifications Engine Oil: Refer to manual for specific viscosity (e.g., 10W-40 or 20W-50 often recommended based on climate) and API service classification. Typically a synthetic or semi-synthetic oil is advised. Coolant: BMW Blue Antifreeze/Coolant concentrate mixed with distilled water (50/50 ratio) or equivalent ethylene glycol based coolant. Brake Fluid: DOT 4 or DOT 3 brake fluid (refer to manual for exact specification and replacement interval). Automatic Transmission Fluid: Dexron III/Mercon equivalent (BMW P/N 83 22 9 407 807 or equivalent) Power Steering Fluid: ATF fluid (e.g., Dexron II/III) Known Issues Common Problems: Cooling system leaks (hoses, water pump, radiator), fuel pump failure, idle control valve issues, valve cover gasket leaks, door panel card deterioration (common on E30s), convertible top mechanism issues, OBC (On-Board Computer) display failure. Electrical Faults: Fuse box corrosion, wiring harness degradation, fuel pump relay failure, starter motor issues. 📚 Vehicle History Brand Heritage Heritage: BMW has a long-standing reputation for performance, luxury, and...