🏷️ Basic Information Identification Make: BMW Model: 335xi Model Years Covered: 2006, 2007, 2008, 2009, 2010 Generation Chassis Code: E90 (Sedan), E91 (Wagon/Touring), E92 (Coupe), E93 (Convertible) Codes Engine Code Primary: N54B30 👋 Introduction Market Position Vehicle Segment: Entry-level luxury sport sedan/coupe/convertible. Competitive Set: Audi A4 Quattro, Mercedes-Benz C-Class, Lexus IS, Infiniti G37. Competitive Analysis Key Differentiators: The 335xi stood out with its potent twin-turbocharged inline-six engine (N54), offering class-leading horsepower and torque, coupled with BMW's renowned xDrive all-wheel-drive system for enhanced traction and performance in various conditions. Key Features Powertrain: The N54B30 engine, a 3.0-liter twin-turbocharged inline-six, delivered exceptional power and responsiveness, making it a performance benchmark in its class. Drivetrain: xDrive all-wheel-drive system provided enhanced grip and stability, particularly beneficial in adverse weather conditions. Driving Dynamics: BMW's signature balanced chassis and responsive steering offered engaging driving dynamics. 📋 Manual Details Coverage Areas Manual Type: Service Repair Workshop Manual Language: English Format: Digital (likely PDF, though not explicitly stated, common for workshop manuals of this era) Page Count Estimated Page Count: 1500-2500+ pages (typical for comprehensive workshop manuals covering multiple chassis variants and engines) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul, including cylinder head, block, pistons, crankshaft, connecting rods, timing system (chain, guides, tensioners), lubrication system, cooling system, fuel delivery, intake manifold, exhaust manifold, turbochargers (twin-turbo system), intercooler. Engine Electrical: Ignition system, fuel injection system (high-pressure direct injection), ECU (DME) function and diagnostics, sensors (crankshaft, camshaft, knock, lambda, MAF, MAP), actuators, starter, alternator, battery management. Transmission: Manual Transmission (6-speed Getrag GS6-37BZ), Automatic Transmission (ZF 6HP19TU). Covers internal components, clutch, torque converter, valve body, mechatronics unit, shift solenoids, transmission control module (TCM), fluid specifications, and refill procedures. Drivetrain: All-wheel-drive (xDrive) system (ATC300 transfer case), front and rear differentials, driveshafts, CV joints, wheel bearings, hub assemblies. Suspension: Front and rear suspension components (struts, shocks, control arms, sway bars, bushings), power steering system (hydraulic), wheel alignment specifications. Brakes: Front and rear brake systems (vented discs), ABS (Anti-lock Braking System), DSC (Dynamic Stability Control), brake booster, master cylinder, brake lines, calipers, pads, rotors, parking brake, fluid specifications (DOT 4). Electrical System: Body control module (BCM), comfort access, lighting (headlights, taillights, interior), wipers, horn, power windows, mirrors, seats, sunroof, keyless entry, immobilizer system, fuse box diagrams, relay locations, wiring diagrams. Climate Control: HVAC system, A/C compressor, condenser, evaporator, refrigerant (R134a), blower motor, climate control unit, cabin air filter replacement. Body And Chassis: Body panels, doors, hood, trunk lid, bumpers, windows, seals, chassis structure, rust prevention, interior trim, sound deadening. Diagnostics And Troubleshooting: OBD-II (On-Board Diagnostics II) procedures, fault code interpretation, diagnostic trouble codes (DTCs), common failure modes, systematic troubleshooting flowcharts. Procedures Included Routine Maintenance: Oil and filter change, air filter replacement, cabin filter replacement, spark plug replacement, brake fluid flush, coolant flush, differential fluid change, transmission fluid change, belt replacement. Major Repairs: Engine rebuilds (including turbocharger servicing/replacement), clutch replacement, transmission overhaul, differential rebuild, suspension component replacement, brake caliper rebuild, power steering pump replacement, alternator replacement, starter replacement. Diagnostic Procedures: Step-by-step diagnostic routines for specific symptoms, use of diagnostic scan tools, sensor testing, actuator testing, wiring harness continuity checks. Electrical Repairs: Wiring harness repair, connector diagnosis and replacement, component replacement (e.g., ABS module, DSC module, fuel pump, ECU). Bodywork And Trim: Door panel removal, interior trim piece replacement, bumper cover replacement, headlight/taillight assembly replacement. Wheel And Tire: Tire changing, wheel balancing, tire pressure monitoring system (TPMS) reset. Technical Depth Diagnostic Tools: Emphasis on BMW's proprietary diagnostic software (ISTA/P, DIS) and specialized tools, but also covers general automotive diagnostic principles. Troubleshooting Methodology: Detailed troubleshooting flowcharts and symptom-based diagnostic trees, covering electrical, mechanical, and software issues. Rebuild Specifications: Includes critical torque specifications, bearing clearances, piston ring end gap, valve lash adjustments (if applicable), and other precision measurements for engine and transmission overhauls. Electrical Diagrams: Comprehensive wiring diagrams for all major systems, including power distribution, signal routing, and sensor inputs/outputs. Maintenance Scheduling: Detailed recommended service intervals based on mileage and time, including specific checks and replacements for each service level. 📊 Manual Specifications File Format File Type: Likely PDF (Portable Document Format) Searchability: Typically searchable text, allowing quick navigation to specific topics. Printability: Designed to be printable, often with individual page formatting suitable for a workshop environment. Print Quality Graphics Resolution: High-resolution diagrams, schematics, and photographic illustrations. Diagram Clarity: Clear, detailed technical drawings and exploded views for assembly and disassembly procedures. Binding Type Physical Manual Binding: N/A (Digital Format) Paper Type Physical Manual Paper: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Name: N54B30 Engine Type: Inline-6 Cylinder, Twin-Turbocharged, Direct Injection Displacement: 2979 cc (3.0 Liters) Bore X Stroke: 84.0 mm x 90.0 mm Compression Ratio: 10.2:1 Horsepower: 300 hp @ 5800 rpm Torque: 300 lb-ft (400 Nm) @ 1300-5000 rpm Redline: 7000 rpm Fuel System Fuel Type: Premium Unleaded Gasoline (91+ Octane Recommended) Fuel...