🏷️ Basic Information Identification Make: BMW Model: 325i Year: 2006 Generation Chassis Code: E90 Generation Name: Fifth Generation Codes Engine Code: N52B25 👋 Introduction Market Position Segment: Compact Executive Sedan Target Audience: Enthusiast owners, Independent repair shops, DIY mechanics Competitive Analysis Key Competitors: Audi A4, Mercedes-Benz C-Class, Lexus IS, Infiniti G35 Key Features Vehicle Strengths: Driving dynamics, premium interior, advanced technology for its era Manual Advantage: Official licensing ensures accuracy and completeness, digital format offers easy navigation and searchability. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive Service and Repair Page Count Estimated Page Count: 2000+ Manual Type Type: Software (Digital Service Manual) Language Language: English Format Format: Digital Software (likely executable or viewable via specialized viewer) 📖 Manual Coverage Systems Covered Powertrain: Engine, Transmission, Drivetrain, Fuel System, Exhaust System Chassis: Suspension, Steering, Brakes, Wheels, Tires Electrical: Engine Management, Lighting, Instrumentation, HVAC Electrical, Body Electrical, Infotainment Body And Interior: Body Panels, Doors, Windows, Seats, Trim, Safety Restraints Procedures Included Maintenance: Routine Maintenance, Oil Changes, Filter Replacements, Fluid Checks and Replacements Diagnostics: Troubleshooting Guides, Diagnostic Trouble Codes (DTCs), Electrical System Diagnostics Repair: Engine Component Repair, Transmission Overhaul, Suspension Component Replacement, Brake System Repair, Electrical Component Repair, Bodywork Repairs Disassembly Assembly: Detailed step-by-step instructions for component removal and installation Technical Depth Depth: Expert Level - Covers diagnostics, repair, and overhaul of all major vehicle systems. Diagrams: Includes detailed wiring diagrams, exploded views, and component illustrations. 📊 Manual Specifications File Format File Type: Software Application/Executable Print Quality Printability: Printable sections available (specifics depend on software implementation) Binding Type Binding: N/A (Digital) Paper Type Paper Quality: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated Inline-6 Engine Displacement: 2.5 Liters (2497 cc) Performance Horsepower: 184 hp @ 6000 rpm Torque: 175 lb-ft @ 3750 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) with Valvetronic and VANOS Recommended Fuel: Premium Unleaded (91 octane or higher) Technical Features Block Material: Aluminum Alloy Head Material: Aluminum Alloy Valvetrain: Double Overhead Camshafts (DOHC), 4 Valves per Cylinder 🔧 Transmission Standard Type: 6-Speed Manual (Getrag GS6-37BZ) Optional Type: 6-Speed Steptronic Automatic (GM 6L45) Features Manual Fluid Type: BMW MTF LT-2 (or equivalent) Automatic Fluid Type: ATF LT-3 (or equivalent) Drivetrain: Rear-Wheel Drive (RWD) 📐 Dimensions Exterior Length: 181.2 inches (4603 mm) Width: 69.1 inches (1755 mm) Height: 56.1 inches (1425 mm) Wheelbase: 108.7 inches (2760 mm) Weights Curb Weight: 3450 - 3580 lbs (1565 - 1624 kg) (approximate, depending on transmission) 🛡️ Safety Features Ratings NHTSA Frontal Impact Driver: 5 Stars NHTSA Frontal Impact Passenger: 5 Stars IIHS Side Impact Driver: Good IIHS Rear Impact Head Restraints: Good Active Features Traction Control: Standard (Dynamic Traction Control - DTC) Stability Control: Standard (Dynamic Stability Control - DSC) Brakes: Four-wheel disc brakes with ABS, Electronic Brake-force Distribution (EBD), and Brake Assist Passive Features Airbags: Frontal airbags, front side-impact airbags, front and rear head protection system (curtain airbags) Seatbelts: 3-point inertia-reel seat belts with pretensioners and force limiters 💡 Technology Features Infotainment System Name: iDrive (First Generation) Features: Central display, controller knob, radio, CD player, optional navigation system, optional Bluetooth connectivity. Driver Assistance Features: ABS, DTC, DSC, optional Parking Distance Control (PDC). Connectivity Bluetooth: Optional, enabling hands-free calling and audio streaming. Lighting Headlights: Standard Halogen Projector, optional Xenon Adaptive Headlights. 🔧 Maintenance Service Intervals Oil Change: Variable Oil Service Interval (Condition Based Service - CBS), typically around 10,000 - 15,000 miles or annually. Air Filter: Every 30,000 - 50,000 miles (or as indicated by CBS) Cabin Filter: Every 15,000 - 30,000 miles (or as indicated by CBS) Spark Plugs: Every 60,000 miles (for iridium plugs) Brake Fluid: Every 2 years (regardless of mileage) Fluid Specifications Engine Oil: SAE 5W-30, BMW Longlife-01 (LL-01) approved synthetic oil Coolant: BMW Blue Antifreeze/Coolant (G48) or equivalent HOAT coolant Known Issues Common Problems: Oil pan gasket leaks, valve cover gasket leaks, CCV (Crankcase Ventilation) system issues, water pump failure, fuel pump issues, ignition coil failures, power steering leaks. Maintenance Tips: Regularly check for oil leaks, monitor coolant levels, inspect CCV system components for degradation. 📚 Vehicle History Brand Heritage Bmw Legacy: Renowned for sporting sedans and driving dynamics since its inception. Model Evolution E90 Introduction: The E90 generation replaced the E46 and introduced BMW's new design language and updated technologies. Production Production Years: 2006 - 2011 (E90 generation) Manufacturing Location: Germany (primarily Munich) 🏆 Awards & Recognition Recognitions Ward Best Engines: The N52 engine family (including the 2.5L variant) was recognized by Ward's AutoWorld in various years for its smooth power delivery and efficiency.