🏷️ Basic Information Identification Make: BMW Model: 325i Convertible Chassis Code: E30 Body Style: Convertible Generation Generation: First Generation E30 Years Covered By Model: 1984-1990 Codes Engine Code: M20B25 👋 Introduction Market Position Segment: Compact Luxury Sports Sedan/Convertible Target Audience: Enthusiasts, DIY mechanics, BMW owners seeking detailed service information. Competitive Analysis Key Competitors: Mercedes-Benz 190E (W201), Audi 80/90, Alfa Romeo 75, Ford Sierra XR4i, Opel Monza. Key Features Driving Dynamics: Renowned for balanced handling, rear-wheel drive, well-tuned suspension, and engaging driving experience. Convertible Appeal: Iconic design, excellent chassis rigidity for its era, functional convertible top mechanism. Engineering Philosophy: German engineering excellence, build quality, driver-centric design. 📋 Manual Details Coverage Areas Manual Coverage Years: 1984, 1985, 1986, 1987, 1988, 1989, 1990 Specific Models Covered: BMW 325i Convertible Page Count Page Count: 554 Manual Type Manual Type: Workshop Service Repair Manual Language Language: English (assumed based on typical market distribution, manual may contain German terms) Format Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Engine overhaul, cylinder head, block, crankshaft, pistons, connecting rods, timing belt, valve train, oil pump, oil cooler, lubrication system. Engine Management: Fuel injection (Bosch Motronic), ignition system, sensors (crankshaft position, camshaft position, throttle position, airflow meter, coolant temperature, O2 sensor), actuators, ECU diagnostics. Transmission Manual: Clutch assembly, gear selection, shift linkage, gearbox overhaul, gear ratios, output shaft, input shaft, synchromesh components. Transmission Automatic: Torque converter, hydraulic control system, valve body, planetary gear sets, transmission fluid service, torque converter lock-up clutch. Drivetrain: Driveshafts, universal joints, constant velocity joints, rear differential, limited-slip differential (if equipped), axle shafts. Suspension: Front strut assembly, rear trailing arms, shock absorbers, springs, control arms, bushings, anti-roll bars, wheel bearings, alignment specifications. Steering: Steering rack, power steering pump, hydraulic lines, steering column, tie rods, steering knuckle, alignment procedures. Brakes: Front and rear disc brakes, brake calipers, brake pads, brake rotors, master cylinder, brake booster, ABS system (if equipped), brake fluid, bleeding procedures, parking brake. Electrical System: Battery, alternator, starter motor, wiring diagrams for all circuits, fuses, relays, lighting system, horn, wipers, power windows, central locking. Body And Interior: Body panel removal and installation, door mechanisms, convertible top operation and repair, interior trim, dashboard, seats, HVAC system (heater core, A/C components, blower motor). Fuel System: Fuel tank, fuel pump, fuel filter, fuel lines, fuel injectors, fuel pressure regulator. Cooling System: Radiator, thermostat, water pump, coolant hoses, coolant reservoir, cooling fan (electric/mechanical). Procedures Included Routine Maintenance: Oil change, filter replacement, spark plug replacement, air filter replacement, coolant flush, brake fluid flush, differential fluid change, transmission fluid change. Diagnostics And Troubleshooting: Step-by-step diagnostic procedures for common issues, fault code interpretation (if applicable for the era), electrical troubleshooting guides. Repair Procedures: Detailed instructions for component removal, installation, and repair for all major systems. Overhaul Procedures: Comprehensive instructions for complete engine and transmission overhauls. Specification Adjustments: Valve lash adjustment, ignition timing setting, fuel pressure adjustments, suspension alignment. Convertible Top Service: Hydraulic and mechanical system maintenance, troubleshooting, and repair of the soft top mechanism. Technical Depth Depth Level: Comprehensive: covers everything from basic fluid changes to full engine rebuilds and complex electrical diagnostics. Diagnostic Tools: References diagnostic procedures and test points, may require basic multimeter and logic probe for older systems. Torque Specifications: Detailed torque specifications for all critical fasteners and assemblies. Clearances And Tolerances: Specific measurement requirements for critical engine and drivetrain components. Wiring Diagrams: Detailed, often color-coded, wiring diagrams for all vehicle electrical systems. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable PDF, enabling quick navigation to specific topics. Print Quality Image Resolution: Varies, but typically sufficient for clear viewing of diagrams and text in official or well-scanned manuals. Binding Type Binding For Digital: N/A (Digital format) Paper Type Paper Type For Digital: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 6-cylinder, SOHC Displacement: 2.5 Liters (2494 cc) Bore X Stroke: 84.0 mm x 75.0 mm Compression Ratio: 8.5:1 (typical) Performance Horsepower: 170 hp @ 5,800 rpm (approx.) Torque: 210 Nm (155 lb-ft) @ 4,800 rpm (approx.) Fuel System Fuel Delivery: Bosch L-Jetronic (L-Jet) or Motronic (MFI) fuel injection Fuel Type: Unleaded gasoline (Octane rating 91 or higher recommended) Ignition System Ignition Type: Electronic Ignition with knock control (Motronic) 🔧 Transmission Standard Transmission Type Standard: Getrag 260 5-speed manual transmission Optional Transmission Type Optional: ZF 4HP22 4-speed automatic transmission Features Clutch Type: Single dry plate diaphragm spring clutch (manual) Gear Ratios Manual Example: 1st: 3.75, 2nd: 2.13, 3rd: 1.40, 4th: 1.00, 5th: 0.81, Reverse: 3.75 (approximate, may vary slightly by specific model/year) Fluid Specifications Manual Transmission Fluid: BMW MTF LT-2 or equivalent (e.g., SAE 75W-90 GL-4) Automatic Transmission Fluid: ZF TE-ML 09 or Dexron II/III equivalent 📐 Dimensions Exterior Length: 168.4 inches (4277 mm) Width: 66.5 inches (1689 mm) Height: 53.6 inches (1361 mm) Wheelbase: 101.2 inches (2570 mm) Weights Curb Weight: Approx....