🏷️ Basic Information Identification Make: BMW Model: 3 Series Chassis Code: E90 (Sedan), E91 (Wagon/Touring), E92 (Coupe), E93 (Convertible) Model Years Covered: 2006, 2007, 2008, 2009, 2010 Codes Engine Codes: N52, N52KP, N51, N54 Transmission Codes: Getrag GS6, ZF GS6, ZF GS6X (Manual), GM GA6L45R, ZF 6HP19 (Automatic) 👋 Introduction Market Position Market Position: The BMW E90 generation 3 Series is a highly regarded compact executive car, known for its sporty driving dynamics, premium interior, and advanced technology. This era represented a significant evolution in BMW's core product line, offering a blend of performance and everyday usability. Competitive Analysis Key Competitors: Audi A4, Mercedes-Benz C-Class, Lexus IS, Infiniti G35/G37, Acura TL. Key Features Key Features Of Vehicle: Advanced engine technology (Valvetronic, Twin-Turbo), sophisticated chassis dynamics, available xDrive all-wheel drive, premium interior materials, a wide range of comfort and technology options. Manual Value Proposition Manual Value: This comprehensive workshop manual is an indispensable tool for BMW owners and independent technicians, providing the authoritative information needed for accurate diagnosis, efficient repair, and proper maintenance, ultimately saving time and money compared to dealership service. 📋 Manual Details Coverage Areas Covered Models: 325i, 330i, 328i, 325xi, 330xi, 328xi, 335i, 335xi Drive Types: Rear-Wheel Drive (RWD), All-Wheel Drive (xDrive) Page Count Page Count: >1200 Manual Type Manual Type: Workshop Service Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine (general, removal/installation, lubrication, ignition, battery, starter, alternator, charging system, fuel injection, fuel tank, fuel pump, radiator, cooling system, exhaust, turbocharger), Transmission (manual, automatic, gearshift linkage), Drivetrain (driveshaft, transfer case, front/rear axle differentials), Clutch System Chassis And Suspension: Steering, Wheel Alignment, Power Steering, Rear Suspension Brakes And Dynamics: Brake System, Anti-lock Brake System (ABS), Dynamic Stability Control (DSC) Body And Interior: Body General, Doors, Fenders, Engine Hood, Trunk Lid, Tailgate, Exterior Trim, Bumpers, Interior Trim, Central Lock & Anti Theft, Seats, Seat Belts, Convertible Top Electrical And Electronics: Electrical System General, Wiper & Washer, Instrument Cluster, Lighting System, Heating & Air Conditioning, Radio System, Air Bag System (SRS), Electrical Component Location, Electrical Wiring Diagrams, On-Board Diagnostics (OBD) Procedures Included Repair And Maintenance: Step-by-step repair procedures, routine maintenance tasks, troubleshooting common symptoms, component removal and installation, diagnostic procedures, system checks and adjustments, fluid changes, filter replacements. Technical Depth Technical Depth: Comprehensive coverage from basic maintenance to in-depth diagnostics and complex repairs. Includes detailed illustrations, diagrams, and specifications essential for professional and DIY mechanics. 📊 Manual Specifications File Format File Format Details: PDF. Requires Adobe Acrobat Reader. The file is delivered in a ZIP archive, requiring extraction using software like WinZip or WinRAR. Print Quality Print Quality Description: Printable. Users can print specific pages as needed for hands-on work. Binding Type Binding Type: N/A (Electronic format) Paper Type Paper Type: N/A (Electronic format) File Size File Size Mb: 190 ⚙️ Engine Specifications Primary Engine Engine Family: Inline 6-Cylinder (Naturally Aspirated and Twin-Turbocharged) N52 Engine Details: 3.0L (2996cc), 24-valve, naturally aspirated, features Valvetronic (variable valve lift) and Double VANOS. Aluminum construction. Naturally aspirated variants include the N52B30A. N51 Engine Details: 3.0L (2996cc), 24-valve, naturally aspirated, SULEV-2 (Super Ultra Low Emission Vehicle) compliant. Features Valvetronic and Double VANOS. Often found in 328i models in specific markets (e.g., California). N54 Engine Details: 3.0L (2979cc), 24-valve, twin-turbocharged, direct injection (High Pressure Injection - HPI). Known for its potent performance and rapid acceleration. Features Double VANOS. Performance N52 Power Output: Approx. 215-255 hp depending on specific variant (e.g., 325i, 330i). N54 Power Output: Approx. 300-320 hp depending on specific variant (e.g., 335i). Fuel System Fuel Delivery: Electronic Port Fuel Injection (PFI) for N52/N51, High Pressure Direct Injection (HPDI) for N54. Fuel Type Recommended Fuel: Premium Unleaded gasoline (91 AKI or higher recommended for optimal performance and engine health). 🔧 Transmission Standard Standard Transmission: 6-Speed Manual Gearbox (e.g., Getrag GS6-37BZ, ZF GS6-17BG/DZ). Optional Optional Transmission: 6-Speed Steptronic Automatic Transmission (e.g., GM GA6L45R for RWD, ZF 6HP19 for RWD and xDrive). Features Automatic Features: Steptronic manual shifting mode, available paddle shifters on some models. Fluid Specifications Manual Transmission Fluid: Refer to manual for specific fluid type (often specialized synthetic gear oil). Example: BMW MTF LT-2. Automatic Transmission Fluid: Refer to manual for specific fluid type. Example for ZF 6HP19: Esso LT 71141 or equivalent approved fluid. For GM GA6L45R: DEXRON-VI. 📐 Dimensions Exterior Wheelbase: E90/E91: approx. 108.7 inches (2760 mm); E92/E93: approx. 108.5 inches (2755 mm) Weights Curb Weight: Varies significantly by model, body style, and drivetrain (approx. 3400-3900 lbs or 1540-1770 kg). 🛡️ Safety Features Ratings NHTSA Ratings: Generally good ratings from NHTSA and IIHS for frontal and side impact for sedan and coupe variants. Convertible (E93) may have different ratings due to structural differences. Active Features Active Safety Systems: Dynamic Stability Control (DSC) including ABS, Traction Control, Dynamic Brake Control (DBC), Cornering Brake Control (CBC), Hill Start Assistant...