🏷️ Basic Information Identification Make: BMW Model: 330xi Model Generation: E90/E91 Model Years Covered: 2006, 2007, 2008, 2009, 2010 Codes Chassis Code: E90 (Sedan), E91 (Wagon/Touring) 👋 Introduction Market Position Segment: Compact Executive Sedan/Wagon Target Audience: Enthusiasts, DIY mechanics, professional workshops servicing BMW vehicles. Competitive Analysis Competitors: Audi A4 Quattro, Mercedes-Benz C-Class 4MATIC, Lexus IS350 AWD, Infiniti G35x Key Features Vehicle Identity: Renowned for its sporty handling, refined interior, and advanced engineering, particularly the xDrive all-wheel-drive system. Manual Value: Provides factory-level diagnostic and repair procedures, essential for maintaining the integrity and performance of the vehicle. 📋 Manual Details Coverage Areas Coverage Type: Complete Factory Service Repair Page Count Estimated Page Count: Hundreds (Exact count not specified, but indicates comprehensive nature) Manual Type Type: Service and Repair Manual Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Powertrain: Engine (N52B30), Drivetrain (xDrive All-Wheel Drive), Transmission (6-speed manual/automatic) Chassis: Suspension, Steering, Brakes (including DSC/ABS), Wheels & Tires Electrical: Engine Management, Body Electrics, Lighting, HVAC Control, Infotainment, Instrument Cluster, DME/ECU Diagnostics Body: Body Panels, Doors, Glass, Interior Trim, Seats, Bumpers, Exterior Lighting Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, brake pad/rotor replacement Repair: Engine overhaul, transmission repair/replacement, suspension component replacement, brake system repair, electrical component diagnosis and repair Diagnostics: Troubleshooting guides, diagnostic trouble codes (DTCs) interpretation, common fault diagnosis Specifications: Torque specifications, fluid capacities, electrical schematics, alignment data Technical Depth Depth: Comprehensive: from basic fluid services to complete engine and transmission rebuilds, electrical system troubleshooting, and bodywork repair. 📊 Manual Specifications File Format PDF Quality: High-resolution, suitable for printing and digital viewing. Searchable Text: Likely includes searchable text for easy navigation and information retrieval. Print Quality Printability: Designed for full printing of individual sections or the entire manual. Binding Type Binding: N/A (Digital PDF format) Paper Type Paper Type: N/A (Digital PDF format) ⚙️ Engine Specifications Primary Engine Engine Code: N52B30 Engine Type: 3.0L 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), DISA intake manifold Fuel Type: Premium Unleaded Gasoline (91+ octane recommended) Technologies Valve Control: Double VANOS (Variable Valve Timing), Valvetronic 🔧 Transmission Standard Type: 6-Speed Manual (GS6-37BZ) Optional Type: 6-Speed Automatic (GA6HP-19Z) Features Drivetrain: xDrive All-Wheel Drive (AWD) Specifications Transmission Fluid Type Auto: BMW ATF LT-3 (or equivalent specified in manual) Transmission Fluid Type Manual: BMW MTF LT-2 (or equivalent specified in manual) 📐 Dimensions Exterior Length E90: 181.8 inches Width: 69.9 inches Height E90: 56.7 inches Wheelbase: 108.7 inches Cargo Trunk Capacity E90: 12.0 cubic feet Weights Curb Weight Approx: 3600-3700 lbs (depending on transmission and options) 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star (2006 Model Year) IIHS Top Safety Pick: Yes (for E90 Sedan, specific years may vary) Active Features Traction Control: Dynamic Traction Control (DTC) Stability Control: Dynamic Stability Control (DSC) Braking System: Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assist Passive Features Airbags: Frontal, front side-impact, head protection airbags Seatbelts: 3-point inertia-reel seat belts with pretensioners and force limiters 💡 Technology Features Infotainment System: iDrive (Infotainment System), CCC generation (Car Communication Computer) on earlier models, potentially CIC on later ones within the range. Navigation, Radio, CD, Bluetooth (optional). Driver Assistance Features: Park Distance Control (PDC), Adaptive Xenon Headlights (optional), Rain-sensing wipers, Cruise Control. Connectivity Options: Bluetooth hands-free interface (optional), USB/Auxiliary audio input. Engine Management ECU: MSV70 (likely for N52B30 ECU) 🔧 Maintenance Service Intervals Oil Change Interval: Typically 10,000-15,000 miles or 12-24 months, as indicated by the vehicle's Condition Based Service (CBS) system. Manual will provide detailed guidance. Brake Fluid Change: Every 2 years, regardless of mileage. Coolant Change: Initial change at 100,000 miles, then every 50,000 miles or 2 years thereafter. Specific BMW coolant required. Fluid Specifications Engine Oil Type: BMW Longlife-01 (LL-01) or Longlife-04 (LL-04) approved synthetic oil, viscosity typically 0W-30 or 5W-30. Refer to manual for exact specification. Engine Oil Capacity: Approx. 6.5 liters (6.9 US quarts) with filter change. Power Steering Fluid: BMW Power Steering Fluid (or CHF 11 S equivalent, as specified) Coolant Type: BMW Blue Coolant (G48 antifreeze) mixed 50/50 with distilled water. Known Issues Common Problems Engine: Oil leaks (valve cover gasket, oil pan gasket), VANOS solenoids, water pump failure, ignition coil failure, PCV system issues. Common Problems Drivetrain: Differential seal leaks, transfer case issues (xDrive), driveshaft universal joint wear. Common Problems Electrical: CCC/iDrive system glitches, HVAC blower motor resistor failure, window regulator issues, sensor failures (ABS, crankshaft position). Common Problems Chassis: Control arm bushings, tie rod ends, strut mount wear, rear axle carrier bushings. 📚 Vehicle History Brand Heritage Brand Legacy: BMW has a long-standing reputation for producing driver-focused, performance-oriented vehicles with superior engineering. Model Evolution E90 Introduction: The E90 generation replaced the E46 and...