🏷️ Basic Information Identification Make: BMW Model: 325i Convertible Model Code: E30 Convertible Generation: E30 Codes Production Years Covered: 1984, 1985, 1986, 1987, 1988, 1989, 1990 👋 Introduction Market Position Positioning: Entry-level luxury sport convertible, offering a balance of performance, handling, and open-air motoring Competitive Analysis Key Competitors: Audi 80/90 Cabriolet, Mercedes-Benz 190SL (earlier), Porsche 944 Cabriolet (higher end) Key Features Vehicle Appeal: Iconic E30 chassis, renowned BMW handling characteristics, direct steering feel, robust inline-six engine Convertible Top: Fully automatic hydraulic convertible top system with manual override and heated rear glass Manual Value Target Audience: BMW enthusiasts, owners undertaking maintenance and restoration, independent repair shops 📋 Manual Details Coverage Areas Primary Markets: North America, Europe Body Styles Covered: Convertible Page Count Estimated Page Count: 1000+ Manual Type Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul, diagnostics, timing, cooling, lubrication Engine Management: Fuel injection (Bosch Motronic), ignition system, sensor diagnostics, ECU functions Transmission: Manual (Getrag 260), Automatic (ZF 4HP22), clutch, driveshaft, differential Suspension And Steering: Front struts, rear semi-trailing arms, bushings, power steering system, wheel alignment Brakes: Front ventilated discs, rear discs, ABS (if equipped), hydraulic system, parking brake Electrical System: Battery, alternator, starter, lighting, gauges, power windows, convertible top motor and hydraulics Climate Control: HVAC system, blower motor, refrigerant system, heater core Bodywork And Trim: Body panels, bumpers, convertible top mechanism, interior trim, glass replacement Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, spark plugs, brake fluid flush Diagnostics: Troubleshooting guides for common issues, DTC reading (where applicable), component testing Repair: Component removal and installation, major overhauls, sub-assembly repairs Adjustments: Valve lash, throttle linkage, ignition timing (early models), parking brake adjustment Torque Specifications: Engine, chassis, and suspension component torque values Technical Depth Depth: Comprehensive, suitable for professional technicians and advanced DIY enthusiasts Diagnostic Tools Required: Mention of specific tools and equipment, including early diagnostic aids 📊 Manual Specifications File Format File Type: PDF Searchability: Text-searchable for easy information retrieval Print Quality Print Readability: High-resolution scans, clear diagrams and text Binding Type Binding: N/A (Digital Format) Paper Type Paper Quality: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: M20B25 Configuration: Inline 6-cylinder, SOHC Displacement: 2.5 Liters (2494 cc) Performance Horsepower: 171 hp @ 5800 rpm (approx.) Torque: 167 lb-ft @ 4300 rpm (approx.) Fuel System Injection System: Bosch Motronic ML-Jetronic Fuel Type: Unleaded Gasoline (Premium Recommended) Cooling System Coolant Type: BMW Antifreeze/Coolant (Blue or Green, ethylene glycol based) Lubrication Oil Capacity: 5.5 Liters (5.8 US Quarts) with filter Oil Specification: API SG or higher, SAE 15W-40 or 10W-40 recommended (refer to manual for specific climate grades) 🔧 Transmission Standard Type: Getrag 260 5-speed Manual Optional Type: ZF 4HP22 4-speed Automatic Features Manual Fluid Type: BMW Synchromesh Fluid (or equivalent API GL-4 75W-90) Automatic Fluid Type: Dexron III (or equivalent ATF) Clutch Type: Hydraulically actuated single dry plate 📐 Dimensions Exterior Length: 170.5 inches (4331 mm) Width: 65.4 inches (1661 mm) Height: 52.7 inches (1339 mm) Wheelbase: 100.4 inches (2550 mm) Weights Curb Weight: 2950 - 3150 lbs (approx., varies by transmission and options) Gross Vehicle Weight Rating: 4100 lbs (approx.) 🛡️ Safety Features Ratings NHTSA Rating: Not directly rated by NHTSA for this period, but known for robust chassis construction. Active Features ABS: Optional Anti-lock Braking System (ABS) Passive Features Airbags: Driver airbag became standard in later E30 models; early models may not have them. Rollover Protection: Reinforced A-pillars and windshield frame for improved structural integrity in rollovers. 💡 Technology Features Infotainment Audio System: Factory AM/FM/Cassette stereo, optional premium sound systems Driver Assistance Cruise Control: Available Connectivity Auxiliary Input: Not standard, aftermarket solutions common 🔧 Maintenance Service Intervals Oil Change: Every 5,000 - 7,500 miles or 12 months (synthetic oil) Spark Plugs: Replace every 30,000 miles (NGK BPR6ES or equivalent) Coolant Flush: Every 2 years or 30,000 miles Brake Fluid Flush: Every 2 years Fluid Specifications Power Steering Fluid: Pentosin CHF 11S or BMW ATF Dexron II Brake Fluid: DOT 4 Differential Fluid: API GL-5 80W-90 Known Issues Engine Oil Leaks: Valve cover gasket, oil pan gasket, rear main seal Cooling System: Cracked plastic coolant expansion tank, failing water pump, thermostat housing leaks Suspension: Worn control arm bushings (bushings integral to the arm), rear shock mounts, subframe bushings Convertible Top Hydraulics: Leaks in hoses or cylinders, pump failure, worn seals Electrical: Corroded ground points, failing alternator voltage regulator, window regulator issues 📚 Vehicle History Brand Heritage Bmw Philosophy: Sheer Driving Pleasure, focus on driver engagement and performance engineering. Model Evolution E30 Platform: Third generation 3 Series, introduced in 1982. The convertible variant was a significant addition, known for its sporty driving dynamics. Convertible Launch: Introduced in 1985 for the 1986 model year. Production Manufacturing Location: Germany 🏆 Awards & Recognition Recognitions Critical Acclaim:...