🏷️ Basic Information Identification Make: BMW Model: 328i & 328xi Generation Chassis Code: E90/E91/E92/E93 (specific to sedan, wagon, coupe, convertible variants) Codes Engine Code: N51 (SULEV) or N52 👋 Introduction Market Position Segment: Premium Compact Executive Sedan/Coupe/Convertible/Wagon Competitive Analysis Key Competitors: Audi A4, Mercedes-Benz C-Class, Lexus IS, Infiniti G35/G37, Cadillac CTS, Acura TL. Key Features Driving Dynamics: Renowned for its balanced chassis, rear-wheel-drive bias (or sophisticated xDrive AWD), and engaging driving experience. Powertrain Options: Smooth, powerful inline-six engines known for their refinement and responsiveness. Build Quality: Typical BMW high-quality interior materials and assembly. 📋 Manual Details Coverage Areas Regions Covered: Global (primarily North American market focus due to SULEV designation on some models) Page Count Estimated Pages: 1500+ Manual Type Type: Complete Workshop Service Repair Manual Language Language: English Format Format: Downloadable Digital Format (likely PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine overhaul, cylinder head, block, pistons, crankshaft, camshafts, timing, lubrication, cooling, fuel delivery, ignition, exhaust. Engine Management: Engine Control Unit (ECU) diagnostics, sensor data, emissions control (including SULEV specific systems), DFI (Direct Fuel Injection) troubleshooting. Transmission Manual: Clutch, gearbox overhaul, shift mechanisms, internal components. Transmission Automatic: Automatic transmission fluid (ATF) service, torque converter, valve body, electronic controls, overhaul procedures. Drivetrain: Driveshafts, CV joints, differential (rear and xDrive all-wheel-drive system), transfer case (if applicable). Brakes: Brake fluid flush, caliper service, rotor replacement, ABS (Anti-lock Braking System), DSC (Dynamic Stability Control), EBD (Electronic Brake-force Distribution) diagnostics. Suspension: Front and rear suspension components (struts, shocks, control arms, bushings), alignment specifications, steering system. Steering: Power steering system (hydraulic or electric), steering rack, tie rods, alignment. Electrical: Battery, charging system, starter, lighting, power windows, locks, mirrors, wipers, horn, fuses, relays. Body And Chassis: Body panels, doors, hinges, latches, interior trim, exterior trim, chassis diagnostics, corrosion protection. HVAC: Air conditioning system, heater core, blower motor, climate control module, refrigerant handling. Diagnostics: OBD-II (On-Board Diagnostics II) procedures, fault code interpretation, diagnostic tool usage, troubleshooting flowcharts. Procedures Included Scheduled Maintenance: Oil changes, filter replacements (oil, air, cabin), spark plug replacement, fluid checks and changes. Troubleshooting: Step-by-step guides for diagnosing common and uncommon issues across all vehicle systems. Repair And Replacement: Detailed instructions for removing, repairing, and reinstalling all major and minor components. Component Testing: Methods for testing the functionality and integrity of sensors, actuators, and electronic modules. Rebuilding: Complete overhaul procedures for engines, transmissions, and differentials. Calibration: Procedures for recalibrating steering angle sensors, yaw rate sensors, and other electronic modules after replacement or repair. Technical Depth Depth: Comprehensive: Covers basic maintenance to complete engine and transmission rebuilds, including advanced diagnostics and electrical schematics. 📊 Manual Specifications File Format Compatibility: Viewable on all devices with PDF reader software. Print Quality Printability: High-resolution, printable pages for workshop use. Binding Type Digital Format Advantage: Instant access, searchable text, bookmarking capability. Paper Type Digital Equivalent: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Name: BMW N52 (3.0L Inline-6) Displacement: 2996 cc (3.0 Liters) Bore X Stroke: 85 mm x 88 mm Compression Ratio: 10.7:1 Performance Horsepower: 230 hp @ 6500 rpm Torque: 200 lb-ft @ 2750 rpm Redline: 7000 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) / Direct Fuel Injection (DFI for some late models or specific variants like N51) Fuel Type: Premium Unleaded Gasoline (91 Octane Recommended) Emission Control: SULEV (Super Ultra Low Emission Vehicle) for N51 variants in specific markets (e.g., California). 🔧 Transmission Standard Transmission Type: 6-speed Manual Transmission (e.g., GS6-37BZ) Optional Transmission Type: 6-speed Steptronic Automatic Transmission (e.g., GA6HP19Z) Features Drivetrain Options: Rear-Wheel Drive (RWD) standard, xDrive All-Wheel Drive (AWD) optional. 📐 Dimensions Exterior Wheelbase: Approx. 108.7 inches (2760 mm) Overall Length: Approx. 181.7 inches (4615 mm) for Sedan Overall Width: Approx. 70.1 inches (1780 mm) Overall Height: Approx. 56.5 inches (1435 mm) for Sedan Cargo Trunk Volume: Approx. 12.0 cu ft (340 Liters) for Sedan Weights Curb Weight: Approx. 3461 lbs (1570 kg) for 328i Sedan Gross Vehicle Weight Rating: Varies by model and configuration, typically around 4500-4700 lbs 🛡️ Safety Features Ratings NHTSA Front Crash Test: 5-Star (for applicable models and testing year) IIHS Top Safety Pick: Often achieved Top Safety Pick ratings during its production years. Active Features Stability Control: Dynamic Stability Control (DSC), Dynamic Traction Control (DTC). Braking Assistance: Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assistant. Passive Features Airbags: Frontal airbags, front side-impact airbags, front and rear head protection airbags (curtain airbags). Seatbelts: 3-point inertia-reel seat belts with pre-tensioners and force limiters. 💡 Technology Features Infotainment Infotainment System: iDrive system (various iterations depending on model year and options, typically with a central display and controller). Navigation: Optional Professional Navigation system with updated map data. Audio Systems: Standard Hi-Fi, optional Logic 7 or Harman Kardon surround sound systems. Driver Assistance Parking Assistance: Optional Park Distance Control (PDC) front and rear, optional rearview camera. Cruise Control: Standard...