🏷️ Basic Information Identification Make: BMW Model: 325i Year: 2005 Generation: E90 (2006-2011 in North America) Codes Chassis Code: E90 (Sedan), E91 (Wagon/Touring), E92 (Coupe), E93 (Convertible) - Manual covers E90 sedan variant primarily 👋 Introduction Market Position Segment: Compact Executive Sedan/Saloon Target Audience: Enthusiasts, DIY mechanics, professional workshops specializing in BMW vehicles Competitive Analysis Key Competitors: Audi A4, Mercedes-Benz C-Class, Lexus IS, Infiniti G35 Key Features Driving Dynamics: Renowned for its balanced chassis, responsive steering, and engaging driving experience Powertrain Refinement: Smooth and potent 3.0L inline-six engine known for its durability and linear power delivery Build Quality: Typical BMW high-quality interior materials and robust construction 📋 Manual Details Coverage Areas Engine Coverage: 3.0L Inline-6 (N52B30) Transmission Coverage: 6-speed Manual (GS6-37BZ), 6-speed Automatic (GA6HP-19Z) Chassis Coverage: Suspension, Steering, Brakes, Body Structure Electrical Coverage: Full Electrical Schematics, Lighting, Powertrain Control, Body Electronics, Infotainment Page Count Estimated Page Count: 1500-2000+ Manual Type Type: Full Service and Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, fuel injection, ignition, emissions control, cooling system, lubrication system, exhaust system Drivetrain: Clutch, manual transmission, automatic transmission, drive shafts, differentials, axles Suspension Steering: Front suspension, rear suspension, steering system components, alignment specifications Brakes: Front and rear brake systems (disc brakes), ABS (Anti-lock Braking System), DSC (Dynamic Stability Control) Electrical System: Battery, charging system, starter, lighting system (headlights, taillights, interior), body control module (BCM), comfort systems, power accessories HVAC: Heating, Ventilation, and Air Conditioning system components and diagnosis Body Exterior: Body panels, doors, windows, mirrors, bumpers, convertible top (if applicable to trim) Body Interior: Seats, dashboard, trim panels, airbags, seatbelts Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, brake pad replacement Troubleshooting: Diagnostic fault codes (DTCs), common problem identification and solutions Repair And Rebuild: Engine overhaul, transmission repair, suspension component replacement, brake caliper overhaul, electrical component replacement Diagnostics: Detailed diagnostic procedures for all major systems, using BMW's diagnostic tools (e.g., ISTA/D concepts) Special Tools: Listing and usage of specialized BMW tools required for specific repairs Technical Depth Depth: Comprehensive from basic maintenance to complete engine and transmission rebuilds, including electrical system diagnostics and wiring diagrams. 📊 Manual Specifications File Format Digital Format: PDF Searchability: Searchable text for quick information retrieval Printable: Printable pages for offline reference Image Quality: High-resolution diagrams, illustrations, and photographs Binding Type Binding: N/A (Digital Format) Paper Type Paper Quality: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: N52B30 Engine Type: Naturally Aspirated, Inline-6 Cylinder Displacement: 2996 cc (3.0 Liters) Performance Horsepower: 255 hp @ 6600 rpm Torque: 220 lb-ft @ 2750 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) with Valvetronic and Double VANOS Recommended Fuel: Premium Unleaded (91 Octane or higher) Engine Management ECM: Siemens MSV70/MSV80 🔧 Transmission Standard Type: 6-speed Manual Transmission (GS6-37BZ) Optional Type: 6-speed Steptronic Automatic Transmission (GA6HP-19Z) Features Clutch: Hydraulically actuated single-plate dry clutch (Manual) Automatic Features: Adaptive shift logic, sport mode, manual mode (Steptronic) 📐 Dimensions Exterior Length: 180.6 in (4587 mm) Width: 68.0 in (1727 mm) Height: 56.2 in (1427 mm) Wheelbase: 108.7 in (2760 mm) Weights Curb Weight: 3362 - 3494 lbs (1525 - 1585 kg) 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star (Driver and Passenger) IIHS Front Offset: Good Active Features Stability Control: Dynamic Stability Control (DSC) Traction Control: Automatic Stability Control and Traction (ASC+T) Braking: Anti-lock Braking System (ABS), Electronic Brake Force Distribution (EBD), Brake Assist Passive Features Airbags: Frontal airbags, side-impact airbags, head protection system (curtain airbags) Seat Belts: Pretensioning seatbelts with force limiters 💡 Technology Features Infotainment System Name: iDrive (Optional, first generation) Features: Central display screen, rotary controller for navigation, audio, and climate control (depending on options). Driver Assistance Parking Sensors: Optional Park Distance Control (PDC) front and rear Connectivity Bluetooth: Optional Bluetooth hands-free system Convenience Cruise Control: Standard 🔧 Maintenance Service Intervals Oil Change Interval: Variable, typically 10,000-15,000 miles or 12-24 months, based on oil quality and driving conditions (Condition Based Service - CBS) Brakes Inspection: Every 15,000 miles or 12 months Engine Air Filter: Every 30,000 miles or 24 months Cabin Air Filter: Every 15,000 miles or 12 months Spark Plugs: Every 60,000 miles (Iridium type) Fluid Specifications Engine Oil: SAE 0W-30 or 5W-30 Synthetic, meeting BMW LL-01 specification Coolant: BMW Blue Antifreeze/Coolant (G48) or equivalent silicate-free ethylene glycol based coolant Brake Fluid: DOT 4 Low Viscosity (LV) High Performance Brake Fluid Transmission Fluid Manual: SAE 75W-80 or 75W-90 Synthetic Manual Transmission Fluid (API GL-4 or GL-5) Transmission Fluid Automatic: BMW Approved ATF (e.g., ATF LT-3 or equivalent) Known Issues Crankcase Ventilation System: PCV valve and hoses can degrade, leading to rough idle and oil leaks. Coolant Leaks: Water pump (often plastic impeller) and thermostat housing are common failure points. Oil Pan Gasket: Can leak over time due to age...