🏷️ Basic Information

Make:

BMW

Model:

3 Series

Model Variant:

335i xDrive

Year:

2009

Chassis Code:

E90 (Sedan), E91 (Wagon/Touring), E92 (Coupe), E93 (Convertible)

Engine Code Primary:

N54B30

👋 Introduction

Segment:

Premium Compact Executive Sedan/Wagon/Coupe/Convertible

Target Audience:

Enthusiasts, DIY mechanics, independent repair shops specializing in BMW vehicles.

Key Competitors:

Audi A4, Mercedes-Benz C-Class, Lexus IS.

Vehicle Philosophy:

Performance-oriented luxury vehicle with advanced engineering and sophisticated driving dynamics, emphasizing the 'Ultimate Driving Machine' ethos.

Manual Value Proposition:

Provides access to official, detailed, and accurate repair procedures, crucial for maintaining the complex systems of a BMW 335i xDrive.

📋 Manual Details

Coverage Scope:

Comprehensive service and repair for the specified vehicle model and year.

Estimated Page Count:

High (typical for official BMW repair manuals, likely 1000+ pages)

Type:

Official Factory Service Manual (Software)

Language:

English

Format:

Software/Digital (likely PDF or proprietary viewer)

📖 Manual Coverage

Engine:

3.0L Twin-Turbocharged Inline-6 (N54B30), including fuel injection, ignition, cooling, lubrication, emissions control, turbocharger system, and ECU diagnostics.

Transmission:

ZF 6HP19/21 (Automatic) and GETRAG GS6-37BZ (Manual), including clutch, gearbox, transfer case (for xDrive), differentials, driveshafts, and related hydraulics/electronics.

Drivetrain:

xDrive All-Wheel Drive System, including transfer case, front and rear differentials, axles, and electronic control unit.

Suspension:

Front McPherson strut and independent rear suspension, including springs, shock absorbers, control arms, bushings, steering knuckles, and anti-roll bars.

Brakes:

Front and rear disc brakes (ventilated), ABS, DSC (Dynamic Stability Control), DTC (Dynamic Traction Control), including brake calipers, rotors, pads, lines, master cylinder, and brake booster.

Steering:

Hydraulic power steering system, including steering rack, pump, hoses, and column.

Electrical:

Full vehicle electrical system, including battery, alternator, starter motor, lighting (headlights, taillights, interior), power accessories, wiring diagrams, fuses, relays, and onboard diagnostics (OBD-II).

Body:

Exterior body panels, doors, hood, trunk, bumpers, glass, seals, and interior trim panels.

HVAC:

Heating, Ventilation, and Air Conditioning (HVAC) system, including compressor, evaporator, condenser, blower motor, climate control unit, and refrigerant system.

Infotainment And Electronics:

iDrive infotainment system, navigation, audio system, instrument cluster, and electronic control modules (ECUs).

Maintenance:

Routine scheduled maintenance, oil changes, filter replacements (oil, air, cabin, fuel), spark plug replacement, brake fluid flush, coolant flush, and tire rotation.

Diagnostics And Troubleshooting:

Step-by-step diagnostic procedures for all major systems, including fault code interpretation, component testing, and troubleshooting flowcharts.

Repair And Replacement:

Detailed instructions for component removal, installation, and repair, including engine component overhaul, transmission service, brake system repair, suspension and steering work, electrical component replacement, and body panel repair.

Special Tools And Equipment:

Identification and usage instructions for specialized BMW tools required for specific repair and diagnostic procedures.

Depth:

Full factory-level repair information, covering everything from basic fluid checks to complete engine and transmission rebuilds, including detailed wiring schematics and diagnostic procedures.

📊 Manual Specifications

File Type:

Digital Software (likely PDF, CHM, or proprietary viewer format)

Print Readability:

High, designed for clear on-screen viewing and printing of diagrams and text.

Binding Type:

N/A (Software format)

Paper Type:

N/A (Software format)

⚙️ Engine Specifications

Engine Name:

N54B30

Engine Type:

3.0 Liter (2979 cc) Twin-Turbocharged Inline 6-Cylinder

Bore X Stroke:

84 mm x 90 mm

Compression Ratio:

10.2:1

Valvetrain:

DOHC, 24 Valves (4 valves per cylinder), Double VANOS

Fuel Delivery:

High-Pressure Direct Injection (HPFP)

Turbocharging:

Twin Turbochargers (parallel configuration)

Ignition System:

Coil-on-plug ignition with knock control

Horsepower Hp:

300 hp @ 5800 rpm

Torque Lb-Ft:

300 lb-ft @ 1300-5000 rpm

Fuel Type:

Premium Unleaded Gasoline (91 AKI or higher recommended)

Engine Oil Type:

BMW Longlife-01 (LL-01) Synthetic

Engine Oil Capacity Quarts:

6.5 quarts (with filter)

Coolant Type:

BMW Blue Antifreeze/Coolant (G48)

🔧 Transmission

Type Automatic:

ZF 6HP19/21 Steptronic Automatic

Type Manual:

GETRAG GS6-37BZ 6-Speed Manual

Drivetrain Type:

xDrive All-Wheel Drive

Automatic Transmission Fluid Type:

ZF Lifeguard Fluid 6 (LF-6)

Manual Transmission Fluid Type:

BMW MTF LT-3

Transfer Case Fluid Type:

BMW DTF-1

📐 Dimensions

Wheelbase Inches:

108.7 inches (E90/E91), 107.4 inches (E92/E93)

Curb Weight Lbs Approx:

3700-4000 lbs (depending on body style and transmission)

🛡️ Safety Features

NHTSA Overall Rating:

Likely 4 or 5 stars (specific rating varies by body style and testing cycle)

Stability Control:

Dynamic Stability Control (DSC), including Dynamic Traction Control (DTC)

Braking System:

Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assist

Airbags:

Front airbags, side-impact airbags, head protection system (curtains)

💡 Technology Features

System Name:

BMW iDrive (CCC or CIC Professional Navigation System)

Features:

Navigation, radio (AM/FM/Satellite), CD player, auxiliary audio input, Bluetooth connectivity (for calls and audio streaming on some configurations).

Advanced Features:

Tire Pressure Monitoring System (TPMS), Rain-sensing wipers, Automatic headlights.

Bluetooth:

Standard on most models, enabling hands-free calling and audio streaming.

OBD Ii Port:

Standard OBD-II port for diagnostic scanning and data retrieval.

🔧 Maintenance

Oil Change Interval:

Typically 15,000 miles or 2 years, or as indicated by the Condition Based Service (CBS) system, whichever comes first.

Brake Fluid Change Interval:

Every 2 years, regardless of mileage.

Spark Plug Replacement Interval:

Typically 60,000 miles for the N54 engine.

Coolant Capacity Quarts:

Approximately 7.5 quarts (15-20% concentrate mixed with distilled water).

High Pressure Fuel Pump:

Known for potential failure, leading to rough idling, stalling, and misfires. Requires diagnostic and potential replacement.

Ignition Coils And Spark Plugs:

Can fail prematurely, causing misfires and rough running. Regular replacement is recommended as a preventative measure.

Turbocharger Wastegate Rattle:

Common issue where wastegate actuators can develop a rattle, especially upon deceleration. Often addressed with actuator rod adjustment or replacement.

Oil Pan Gasket Leaks:

Can develop leaks over time due to age and heat. Requires replacement of gasket and often labor-intensive access.

Water Pump And Thermostat:

Can fail, leading to overheating. Often replaced preventatively around 60,000-80,000 miles.

Oil Filter Part Number:

BMW 11 42 7 541 827 (example, verify for specific engine variant)

📚 Vehicle History

Brand Philosophy:

BMW (Bayerische Motoren Werke AG) has a long-standing reputation for producing performance-oriented luxury vehicles with a focus on driving dynamics and engineering excellence.

Generation:

Fifth generation (E90/E91/E92/E93) of the BMW 3 Series, replacing the E46 generation.

Key Introductions Of Generation:

Introduction of electric power steering (on some models later in the generation), advanced infotainment systems, and the potent N54 twin-turbocharged engine.

Production Years For E90 Gen:

2005-2013 (Sedan/Wagon), 2006-2013 (Coupe), 2007-2013 (Convertible)

🏆 Awards & Recognition

Ward Ten Best Engines:

The N54 engine received multiple 'Ward's 10 Best Engines' awards for its performance and technological innovation.

General Reputation:

The 3 Series, particularly models with the N54 engine, are highly regarded for their driving dynamics, performance, and luxury appointments.