🏷️ Basic Information Identification Make: BMW Model: 325i Year: 2005 Generation Chassis Code: E90 Codes Engine Code: N52B25 👋 Introduction Market Position Segment: Premium compact executive sedan Competitive Analysis Competitors: Audi A4, Mercedes-Benz C-Class, Lexus IS, Acura TL Key Features Driving Dynamics: Renowned for its balanced chassis, rear-wheel-drive bias, and engaging driving experience. Powertrain: Smooth and powerful inline-six engine, sophisticated transmissions. Interior: Driver-focused cockpit, high-quality materials, premium feel. 📋 Manual Details Coverage Areas Service And Repair: Comprehensive Page Count Estimated Pages: 2000+ Manual Type Type: Service and Repair Manual Software Language Language: English Format Format: Digital Software (likely PDF or proprietary executable) 📖 Manual Coverage Systems Covered Engine: Complete diagnostics, repair, overhaul, component replacement Transmission: Automatic (Steptronic) and Manual: diagnostics, fluid services, component repair Brakes: ABS, DSC, brake fluid service, pad/rotor replacement, caliper repair Suspension: Struts, shocks, control arms, bushings, alignment specifications Steering: Power steering system, steering rack, tie rods, alignment Electrical System: Comprehensive wiring diagrams, component testing, diagnostic procedures for all modules HVAC: Climate control system, refrigerant service, component replacement, diagnostics Body And Frame: Panel replacement, collision repair procedures, door/window mechanisms Fuel System: Fuel pump, injectors, fuel pressure, emissions controls Cooling System: Radiator, water pump, thermostat, coolant specifications, bleeding procedures Exhaust System: Component replacement, catalytic converter information, emissions Procedures Included Scheduled Maintenance: Detailed maintenance schedules and procedures Troubleshooting: Extensive diagnostic flowcharts and symptom-based troubleshooting guides Repair And Overhaul: Step-by-step instructions for major and minor repairs, including engine and transmission rebuilds Component Replacement: Instructions for replacing virtually all serviceable parts Diagnostic Tool Usage: Information on using BMW's diagnostic systems (e.g., ISTA/D) and specific fault codes Technical Depth Depth: Factory-level diagnostics, repair, and specifications 📊 Manual Specifications File Format File Type: Software Application or PDF Archive Print Quality Resolution: High-resolution, suitable for printing Binding Type Binding: N/A (Digital Format) Paper Type Paper Quality: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated Inline 6-Cylinder (I6) Displacement: 2.5 Liters (2497 cc) Bore X Stroke: 82.0 mm x 78.5 mm Compression Ratio: 10.7:1 Valvetrain: Double Overhead Camshafts (DOHC), 4 valves per cylinder, VANOS (Variable Valve Timing) Performance Horsepower: 215 hp @ 6500 rpm Torque: 185 lb-ft @ 2750 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Fuel Type: Premium Unleaded Gasoline (91 Octane Recommended) Engine Management ECU Type: Bosch Motronic (Specific variant for N52) 🔧 Transmission Standard Type: 6-Speed Manual (GS6-37BZ) Optional Type: 6-Speed Steptronic Automatic (GA6HP19Z) Features Steptronic Operation: Manual shifting mode via selector lever or steering wheel paddles (if equipped) Fluid Specs Automatic Transmission Fluid: BMW ATF LT-5 (or equivalent spec, e.g., Shell M-1375.4) Manual Transmission Fluid: BMW MTF LT-2 (or equivalent spec) 📐 Dimensions Exterior Length: 181.3 inches (4605 mm) Width: 69.2 inches (1757 mm) Height: 56.1 inches (1425 mm) Wheelbase: 108.0 inches (2745 mm) Weights Curb Weight: Approximately 3400-3550 lbs (1542-1610 kg) depending on transmission Gross Vehicle Weight Rating: Approximately 4500 lbs (2041 kg) 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star NHTSA Side Impact: 5-Star IIHS Front Crashworthiness: Good IIHS Side Impact: Good IIHS Rear Impact: Good IIHS Roof Strength: Good Active Features Traction Control: Dynamic Traction Control (DTC) Stability Control: Dynamic Stability Control (DSC) Brakes: Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD) Passive Features Airbags: Front airbags, side-impact airbags, head protection airbags (curtain) Seatbelts: Pretensioners and force limiters 💡 Technology Features Infotainment I Drive System: Optional iDrive system with central controller and LCD screen for navigation, audio, climate, and vehicle settings. Audio System: Various options including standard Hi-Fi system, Logic7 surround sound system. Driver Assistance Parking Sensors: Optional Park Distance Control (PDC) front and rear. Cruise Control: Standard cruise control, optional Active Cruise Control (ACC) on some models. Connectivity Bluetooth: Optional Bluetooth hands-free system. Usb Aux: Auxiliary audio input typically standard, USB connectivity may vary by option package. 🔧 Maintenance Service Intervals Oil Change: Condition-based service (CBS) via oil quality sensor, typically 10,000-15,000 miles or annually. Brake Fluid: Every 2 years Engine Air Filter: Every 30,000-40,000 miles (or as per CBS) Cabin Air Filter: Every 15,000-20,000 miles (or as per CBS) Spark Plugs: Typically around 60,000 miles for the N52 (check manual for exact spec) Fluid Specifications Engine Oil Type: SAE 5W-30 Synthetic (BMW Longlife-01 or LL-01 FE approved) Coolant Type: BMW Blue Antifreeze/Coolant (G48 ethylene glycol based) Known Issues Common Problems: Water pump failure (plastic impeller prone to cracking), ignition coil failure, VANOS solenoids, oil separator (crankcase vent) issues, coolant expansion tank leaks, oil filter housing gasket leaks. 📚 Vehicle History Brand Heritage Manufacturer: Bayerische Motoren Werke AG (BMW), Germany Model Evolution E90 Introduction: The E90 generation marked a significant redesign from the E46, introducing more modern styling, advanced technology, and the new N52 engine. Production Manufacturing Locations: Germany (Main), South Africa, China (for local markets) 🏆 Awards & Recognition Recognitions Car And Driver 10 Best: Often a recipient of Car...