🏷️ Basic Information Identification Make: BMW Model: 325i Generation: E30 Codes Chassis Code: E30 👋 Introduction Market Position Vehicle Segment: Compact Executive Sports Sedan/Coupe Target Audience: Enthusiasts seeking performance, handling, and BMW's renowned driving dynamics. Competitive Analysis Key Competitors: Mercedes-Benz 190E, Audi 80/90, Alfa Romeo 75. Key Features Driving Dynamics: Renowned for its balanced chassis, precise steering, and engaging driving experience. Engine Performance: Smooth and responsive M20 inline-six engine providing ample power for its class. Build Quality: Characteristic BMW build quality and durable construction. Manual Value Proposition Essential Resource: Indispensable for maintaining, diagnosing, and repairing the BMW 325i E30, ensuring longevity and optimal performance. 📋 Manual Details Coverage Areas Model Years Covered: 1987, 1988, 1989, 1990, 1991 Engine Variants Covered: M20B25 (2.5L Inline-6) Page Count Estimated Page Count: 1000+ Manual Type Manual Type: Comprehensive Service & Repair Workshop Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed overhaul procedures, component specifications, timing belt replacement, valve adjustments, cooling system diagnostics and repair, lubrication system. Engine Electrical: Ignition system, fuel injection system (Bosch Motronic), starter, alternator, engine sensors, wiring diagrams. Transmission: Manual and Automatic transmission overhaul, clutch service, driveshaft and differential maintenance, gear linkage adjustment. Suspension And Steering: Front and rear suspension component replacement, shock absorber and strut replacement, power steering system service, wheel alignment specifications. Brakes: Front and rear brake system overhaul (discs and calipers), brake fluid replacement, parking brake adjustment, ABS system diagnostics (if equipped). Electrical System: Comprehensive wiring diagrams, lighting system, instrument cluster, power windows, central locking, fuse box diagrams, battery and charging system. Body And Chassis: Body panel repair, door mechanisms, trunk lid, hood, bumper repair, chassis lubrication, rust prevention and repair. Procedures Included Routine Maintenance: Oil change intervals and specifications, filter replacement, spark plug replacement, coolant flush, air filter replacement. Troubleshooting: Diagnostic charts for common issues, fault code interpretation (where applicable), symptom-based troubleshooting guides. Component Replacement: Step-by-step instructions for replacing major components (e.g., water pump, alternator, starter, fuel pump). Special Tools Requirements: Identification and usage of specialized tools required for specific procedures. Technical Depth Depth: Detailed diagnostic procedures, torque specifications, component clearances, electrical schematics, and overhaul instructions suitable for professional mechanics and advanced DIY enthusiasts. 📊 Manual Specifications File Format Searchable Text: Yes Printable: Yes Print Quality Image Clarity: High-resolution diagrams and images. Binding Type Binding: N/A (Digital PDF) Paper Type Paper Quality: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Code: M20B25 Engine Type: Inline-6, SOHC Displacement: 2494 cc (2.5 Liters) Bore X Stroke: 84.0 mm x 75.0 mm Compression Ratio: 8.8:1 Performance Horsepower: 168 hp @ 5800 rpm (approx.) Torque: 225 Nm (166 lb-ft) @ 4300 rpm (approx.) Fuel System Fuel Delivery: Bosch Motronic Injection (LE-Jetronic/L-Jetronic variants) Recommended Fuel: Unleaded Premium (91+ Octane) Lubrication Oil Capacity: 5.0 Liters (5.3 US Quarts) with filter Cooling Coolant Capacity: 8.0 Liters (8.5 US Quarts) Ignition Ignition System: Electronic Ignition with Knock Sensor 🔧 Transmission Standard Transmission Type: Getrag 260 5-Speed Manual Optional Transmission Type: ZF 4HP22 4-Speed Automatic Features Clutch Type: Hydraulic Differential Type: Limited Slip Differential (Optional) Fluid Specs Manual Transmission Fluid: BMW Manual Gearbox Oil (e.g., SAE 75W-90, specific BMW part numbers available in manual) Automatic Transmission Fluid: Dexron II or equivalent (specific BMW ATF part numbers available in manual) 📐 Dimensions Exterior Wheelbase: 2570 mm (101.2 in) Length: 4340 mm (170.9 in) Width: 1670 mm (65.7 in) Height: 1380 mm (54.3 in) Weights Curb Weight: Approx. 1270 kg (2800 lbs) - Sedan Gross Vehicle Weight Rating: Varies by model and configuration Wheels Tires Wheel Bolt Pattern: 5x120 Standard Tire Size: 195/65R14 or 205/55VR14 Optional Wheel Size: 15-inch alloy wheels 🛡️ Safety Features Ratings Crash Test Results: Limited official crash test data for this era, but E30 chassis known for robust construction. Active Features ABS: Optional Anti-lock Braking System (ABS) Passive Features Seatbelts: 3-point front seatbelts, optional rear seatbelts. Driver Airbag: Not standard on all models, introduced later in the generation. Crumple Zones: Engineered front and rear crumple zones for improved occupant protection. 💡 Technology Features Infotainment Audio System: Factory-installed AM/FM cassette player with optional premium sound system. Manual covers basic operation and speaker replacement. Driver Assistance Cruise Control: Optional cruise control system. Manual details operation and common fault diagnosis. Connectivity Exterior Antennae: Power antenna for radio reception. Manual covers antenna replacement and wiring. 🔧 Maintenance Service Intervals Oil Change Interval: Every 7,500-10,000 miles (or 12,000-16,000 km) or 1 year, whichever comes first. Timing Belt Replacement Interval: Every 60,000 miles (96,000 km) or 5 years. Coolant Flush Interval: Every 2 years or 30,000 miles (48,000 km). Fluid Specifications Engine Oil Specification: API SG, ACEA A3/B3, SAE 10W-40 or 15W-50 (refer to manual for precise recommendations based on climate). Brake Fluid Specification: DOT 3 or DOT 4 Known Issues Head Gasket Leaks: Can be prone to head gasket failures...