🏷️ Basic Information Identification Make: BMW Model: 3 Series Model Variant: 325, 325e, 325es Codes Chassis Code: E30 👋 Introduction Market Position Segment: Compact Executive Sedan/Coupe Reputation: Renowned for driving dynamics, build quality, and sporty appeal Competitive Analysis Competitors: Mercedes-Benz 190E, Audi 80/90, Alfa Romeo 75 Key Features Chassis: Iconic E30 platform, known for its balanced handling and rear-wheel drive layout Engine Options: Smooth inline-six engines (M20 series) Design: Timeless Paul Bracq design, understated yet sporty aesthetic 📋 Manual Details Coverage Areas Years Covered: 1984, 1985, 1986, 1987, 1988, 1989, 1990 Models Covered: 325, 325e, 325es Page Count Estimated Pages: Over 1000 Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul, assembly, disassembly, diagnosis Engine Management: Fuel injection (Motronic), ignition system, emission controls Transmission Manual: Gearbox overhaul, clutch, shifting mechanisms Transmission Automatic: Overhaul, torque converter, hydraulic controls Suspension And Steering: Front/rear suspension components, steering gear, power steering Braking System: Disc brakes (front/rear), ABS (if equipped), hydraulic system, parking brake Electrical System: Wiring diagrams, starter, alternator, battery, lighting, instruments Bodywork And Chassis: Body panel repair, interior trim, doors, windows, welding procedures Heating And Air Conditioning: HVAC system components, refrigerant service Fuel System: Fuel tank, lines, pump, injectors, pressure regulator Cooling System: Radiator, water pump, thermostat, cooling fans Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks, tune-ups Major Repairs: Engine rebuilds, transmission overhaul, suspension component replacement Diagnostics: Troubleshooting guides, common faults, diagnostic trouble codes (DTCs) Torque Specifications: Critical fastener torque values for all major components Wiring Diagrams: Comprehensive electrical schematics for all systems Specifications: Engine specs, clearances, tolerances, fluid capacities Technical Depth Depth: In-depth, from basic maintenance to full engine and transmission rebuilds Troubleshooting Level: Advanced, with diagnostic flowcharts and fault finding procedures 📊 Manual Specifications File Format Compatibility: Compatible with all PDF readers (Adobe Acrobat, etc.) Print Quality Quality: High-resolution, clear and legible text and diagrams Binding Type Binding: N/A (Digital) Paper Type Paper: N/A (Digital) Searchability Text Search: Fully searchable text for quick information retrieval Navigation Hyperlinks: Clickable table of contents and index for easy navigation ⚙️ Engine Specifications Primary Engine Engine Code: M20B27 (325e/es), M20B25 (325i, though 325 is used generically here and often implied as 325i for performance context in this era, the 325e/es are specifically M20B27) Displacement: 2.7 Liters (325e/es) Cylinders: Inline-6 Horsepower 325E: 121 hp @ 4800 rpm (approx.) Torque 325E: 170 lb-ft @ 3250 rpm (approx.) Horsepower 325Es: 121 hp @ 4800 rpm (US spec, identical to 325e) Torque 325Es: 170 lb-ft @ 3250 rpm (US spec, identical to 325e) Performance Compression Ratio 325E: 8.5:1 (designed for low-end torque and fuel economy) Fuel System Injection Type: Bosch Motronic (M1.1 or M1.3 depending on specific model year) Fuel Type: Unleaded Gasoline 🔧 Transmission Standard Type: 4-speed Automatic (standard on 325e/es in many markets) Optional Type: 5-speed Manual (Getrag 260) Features Clutch: Single dry plate Rear Axle Ratio: Variable depending on transmission and market (e.g., 2.79:1 for auto, 3.15:1 for manual) 📐 Dimensions Exterior Wheelbase: 101.2 inches (2570 mm) Length: 170.5 inches (4330 mm) Width: 66.3 inches (1684 mm) Height: 55.1 inches (1400 mm) Weights Curb Weight: 2800 - 3000 lbs (approx.) Gross Vehicle Weight: Over 3500 lbs (approx.) 🛡️ Safety Features Ratings NHTSA Ratings: Refer to specific model year testing; generally performed well for its era Active Features ABS: Optional on some models, standard on later 'i' versions and specific packages Passive Features Seat Belts: Three-point front and rear seat belts Headrests: Front and rear headrests Body Construction: Unitized body with crumple zones 💡 Technology Features Infotainment Radio: Factory AM/FM cassette player, optional premium sound systems Speakers: Various configurations depending on trim and options Driver Assistance Cruise Control: Optional Connectivity Connectivity Features: Limited by era; primarily analog systems 🔧 Maintenance Service Intervals Oil Change: Every 5,000-7,500 miles or annually (depending on usage and oil type) Coolant Flush: Every 2 years or 30,000 miles Spark Plugs: Refer to manual; typically every 30,000 miles for standard plugs, longer for platinum Timing Belt: M20 engines use a timing belt; replace every 40,000-60,000 miles or 5 years due to potential failure risk Fluid Specifications Engine Oil: API SG or higher, SAE 15W-50 or 10W-40 recommended (check manual for specific temp ranges) Coolant: BMW Blue Antifreeze/Coolant, 50/50 mix with distilled water Brake Fluid: DOT 4 Transmission Fluid Auto: Dexron II or equivalent Transmission Fluid Manual: GL-4 Gear Oil, SAE 75W-90 or 80W-90 Known Issues Engine Oil Leaks: Valve cover gasket, oil pan gasket, front/rear main seals Cooling System: Cracked plastic radiator end tanks, failing water pump, thermostat housing leaks Suspension: Worn control arm bushings, ball joints, shock absorbers Electrical: Corroded ground points, failing instrument clusters, fuel pump relays Interior: Sunroof drain blockage leading to water ingress, cracked dashboards 📚 Vehicle History Brand Heritage Bmw Philosophy:...