🏷️ Basic Information Identification Make: BMW Model: 335i xDrive Model Code: E90/E91/E92/E93 (specific chassis depends on body style) Year: 2011 Codes Engine Code: N55B30 Chassis Codes: E90 (Sedan), E91 (Wagon/Touring), E92 (Coupe), E93 (Convertible) 👋 Introduction Market Position Positioning: The 2011 BMW 335i xDrive represented BMW's premium sport sedan and coupe offering, competing directly with the Audi A4 Quattro, Mercedes-Benz C-Class 4MATIC, and Infiniti G37x. It was positioned as a performance-oriented luxury vehicle with the added security of all-wheel drive. Competitive Analysis Competitors: Audi A4 3.2 FSI Quattro, Mercedes-Benz C350 4MATIC, Infiniti G37x Sedan/Coupe. The 335i xDrive stood out with its potent twin-scroll turbocharged inline-six, offering superior torque and acceleration compared to most naturally aspirated competitors. Key Features Engine Performance: The N55B30 engine's 300 hp and 300 lb-ft of torque provided exhilarating performance, further enhanced by the xDrive system's enhanced traction. Xdrive AWD: BMW's intelligent all-wheel-drive system optimized for rear-wheel bias, providing excellent handling and stability in various weather conditions. Chassis Dynamics: Renowned BMW 50/50 weight distribution and refined suspension tuning for a balanced and engaging driving experience. 📋 Manual Details Coverage Areas Coverage: Comprehensive repair, service, and diagnostics for all systems of the 2011 BMW 335i xDrive. Page Count Estimated Page Count: 1500-2500+ (Digital software, actual content size may vary) Manual Type Type: Official Service and Repair Manual Software Language Language: English Format Format: Software (Digital/Downloadable) 📖 Manual Coverage Systems Covered Engine: N55 3.0L Twin-Scroll Turbocharged Inline-6 engine (maintenance, repair, diagnostics, performance tuning basics). Drivetrain: xDrive All-Wheel Drive system (transfer case, differentials, driveline components, servicing). Transmission: ZF 6-speed automatic transmission (GA6HP26Z) and optional 7-speed M-DCT dual-clutch transmission (if applicable for specific trims, though less common on standard 335i xDrive E9x). Fluid specifications, service intervals, troubleshooting. Brakes: Hydraulic brake system, ABS, DSC (Dynamic Stability Control), brake pad/rotor replacement, fluid flush, component testing. Suspension: Front and rear suspension components (struts, shocks, control arms, bushings), alignment specifications, servicing. Steering: Electric Power Steering (EPS) system, steering rack, tie rods, power steering fluid (if applicable). Electrical: Complete electrical system, wiring diagrams, fuses, relays, battery, alternator, starter, lighting, sensors, ECUs, module diagnostics. HVAC: Climate control system, refrigerant charging, blower motor, evaporator, condenser, troubleshooting. Bodywork: Body panel removal/installation, door mechanisms, exterior trim, interior trim, sealing, structural components. Diagnostics: On-Board Diagnostics (OBD-II) procedures, fault code interpretation, diagnostic tool usage (e.g., ISTA/D, INPA), troubleshooting trees. Procedures Included Routine Maintenance: Oil and filter changes, air filter replacement, cabin air filter replacement, spark plug replacement, fluid level checks and top-offs. Component Replacement: Brake pads and rotors, exhaust components, engine mounts, transmission mounts, suspension components, water pump, thermostat, alternator, starter motor, fuel injectors, ignition coils. Diagnostics And Troubleshooting: Step-by-step guides for diagnosing common and complex issues, identifying root causes, using diagnostic tools. System Calibration: Steering angle sensor calibration, DSC sensor calibration, adaptive headlight calibration. Software Updates: Procedures for engine control unit (ECU) and other module software updates (requires appropriate BMW diagnostic hardware/software). Technical Depth Depth: Detailed mechanical and electrical repair procedures, including disassembly, reassembly, torque specifications, special tool requirements, and diagnostic flowcharts. 📊 Manual Specifications File Format Compatibility: Compatible with Windows operating systems. Specific version requirements may apply. Print Quality Quality: Digital format allows for high-resolution diagrams, schematics, and text. Printable pages for workshop use. Binding Type Type: N/A (Digital Software) Paper Type Type: N/A (Digital Software) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 6-cylinder, Twin-Scroll Turbocharged, Double VANOS, Valvetronic Displacement: 2979 cc (3.0 Liters) Bore X Stroke: 84.0 mm x 90.0 mm Compression Ratio: 10.2:1 Performance Horsepower: 300 hp @ 5800 rpm Torque: 300 lb-ft @ 1200 rpm Redline: 7000 rpm Fuel System Fuel Delivery: Direct Injection (High-Pressure Fuel Injection) Fuel Type: Premium Unleaded Gasoline (91 Octane or higher recommended) Fluid Capacities Engine Oil Capacity: 6.9 US quarts (6.5 Liters) with filter change Coolant Capacity: Approximately 7.9 US quarts (7.5 Liters) 🔧 Transmission Standard Transmission Type: ZF 6-speed automatic (GA6HP26Z) Transmission Fluid Type: BMW ATF 71141 or equivalent (e.g., Pentosin ATF1) Features Automatic Features: Steptronic manual shift mode, adaptive transmission control. Optional Transmission Type: 7-speed M Double Clutch Transmission (M-DCT) - Less common on standard 2011 335i xDrive E9x, more prevalent on M3 models, but should be verified by specific chassis code. 📐 Dimensions Exterior Wheelbase: 108.7 inches (2761 mm) for Sedan/Coupe, 110.1 inches (2797 mm) for Wagon Length: 181.8 - 182.5 inches (4618 - 4636 mm) depending on body style Width: 69.8 inches (1773 mm) to 70.2 inches (1783 mm) Height: 55.4 inches (1407 mm) for Coupe, 56.3 inches (1430 mm) for Sedan, 57.2 inches (1453 mm) for Wagon Weights Curb Weight: Approximately 3700 - 3900 lbs (1680 - 1770 kg) depending on body style and options Cargo Trunk Volume: 12.0 cubic feet (340 Liters) for Sedan, 13.4 cubic feet (380 Liters) for Wagon (with seats up) 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star (for applicable body...