🏷️ Basic Information Identification Make: BMW Model: 3 Series Model Variant: 325, 325e, 325es Year: 1989 Codes Chassis Code: E30 👋 Introduction Market Position Positioning: The BMW 3 Series (E30) of this era was a benchmark in the compact luxury sports sedan segment, known for its superior driving dynamics, build quality, and engaging performance. Competitive Analysis Competitors: Competed with vehicles such as the Mercedes-Benz 190E, Audi 80/90, and certain American luxury sedans of the late 1980s. Key Features Driving Dynamics: Renowned for its balanced chassis, rear-wheel-drive layout, and responsive steering, offering a true driver's car experience. Reliability: Generally considered robust and well-engineered, though specific maintenance is crucial for longevity. Manual Value Value Proposition: This manual is essential for owners and mechanics looking to maintain, repair, or restore their E30 325 models, providing the technical data needed for DIY projects and professional service. 📋 Manual Details Coverage Areas Engine: Yes Transmission: Yes Suspension: Yes Brakes: Yes Electrical System: Yes Fuel System: Yes Cooling System: Yes Exhaust System: Yes Steering: Yes Body And Frame: Yes Interior: Yes HVAC: Yes Troubleshooting: Yes Maintenance: Yes Diagnostics: Yes Rebuilds: Yes Restoration: Yes Page Count Approximate Pages: 1500+ Manual Type Type: Full Service Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, disassembly, cylinder head, pistons, connecting rods, crankshaft, camshaft, timing belt/chain, oil pump, lubrication system. Engine Management: Bosch Motronic system, fuel injection, ignition system, sensors (e.g., crankshaft position, camshaft position, throttle position, manifold absolute pressure), actuators, emissions control systems (e.g., EGR, O2 sensors). Transmission Manual: Gearbox overhaul, clutch replacement, shifting mechanisms, gear ratios, fluid specifications. Transmission Automatic: Overhaul, torque converter, valve body, hydraulic control, fluid specifications, shift control. Suspension Front: MacPherson struts, control arms, bushings, ball joints, sway bar, steering knuckles, wheel bearings. Suspension Rear: Trailing arms, shock absorbers, springs, bushings, differential mounting, driveshafts, CV joints. Brakes Front: Disc brake caliper overhaul, rotor replacement, brake pad replacement, brake lines, ABS system components (if applicable). Brakes Rear: Disc brake caliper overhaul, rotor replacement, brake pad replacement, parking brake mechanism, brake lines, ABS system components (if applicable). Steering: Steering rack and pinion, power steering pump, steering fluid, tie rods, steering column. Electrical Engine: Wiring diagrams, starter motor, alternator, battery, fuses, relays, ignition coil, spark plug wires. Electrical Body: Headlights, taillights, interior lighting, power windows, power locks, wipers, horn, dashboard instruments, central locking system. HVAC: Blower motor, evaporator, condenser, refrigerant system, heater core, climate control panels. Fuel System: Fuel tank, fuel pump, fuel filter, fuel lines, fuel pressure regulator, fuel injectors. Cooling System: Radiator, thermostat, water pump, coolant hoses, expansion tank, cooling fan. Procedures Included Routine Maintenance: Oil and filter change, air filter replacement, spark plug replacement, fluid checks and top-offs, brake inspection, tire rotation. Component Removal Installation: Step-by-step guides for removing and reinstalling major components such as engine, transmission, suspension parts, brake calipers, etc. Troubleshooting Guides: Diagnostic procedures for common and uncommon problems, including symptom-based troubleshooting and component testing. Engine Rebuild: Detailed instructions for complete engine disassembly, inspection, repair, and reassembly, including torque specifications and clearances. Transmission Overhaul: Comprehensive steps for disassembling, inspecting, and reassembling both manual and automatic transmissions. Electrical Troubleshooting: Utilizing wiring diagrams to diagnose and repair electrical faults, including testing of sensors, actuators, and control modules. Body Repair: Procedures for minor body panel repair, door adjustments, trim removal and installation. Technical Depth Depth: Comprehensive from basic maintenance to complete engine and transmission rebuilds, including detailed diagnostic procedures. 📊 Manual Specifications File Format Quality: High-resolution, searchable PDF with clear text and legible diagrams. Print Quality Quality: Designed for clear printing, with professional layout and easy-to-read fonts and diagrams. Binding Type Type: N/A (Digital Format) Paper Type Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: M20B27 (for 325e/es) Engine Type: Inline 6-cylinder, SOHC (Single Overhead Camshaft) Displacement: 2.7 Liters (2693 cc) Bore X Stroke: 84.0 mm x 81.0 mm Compression Ratio: 8.8:1 (for 325e), 9.4:1 (for 325es) Performance Horsepower 325E: 121 hp @ 4800 rpm Torque 325E: 170 lb-ft @ 3250 rpm Horsepower 325Es: 168 hp @ 5800 rpm (with revised cam and ECU tuning) Torque 325Es: 164 lb-ft @ 4000 rpm Fuel System Injection System: Bosch Motronic ML-Jetronic (325e), Bosch Motronic M1.3 (325es) Fuel Type: Unleaded gasoline Recommended Octane: 91 AKI (87 Octane may be acceptable for 325e with potential power reduction) 🔧 Transmission Standard Type: Getrag 260 5-speed manual transmission (standard on 325es and optional on 325e) Optional Type: ZF 4HP22 4-speed automatic transmission (optional on 325e) Features Clutch: Hydraulically operated single dry plate clutch Differential: Open differential (standard), optional Limited Slip Differential (LSD) available on some models. 📐 Dimensions Exterior Length: 170.5 inches (4330 mm) Width: 67.3 inches (1710 mm) Height: 54.7 inches (1390 mm) Wheelbase: 104.7 inches (2660 mm) Weights Curb Weight: Approx. 2900-3100 lbs (1315-1406 kg) depending on transmission...