🏷️ Basic Information

Make:

BMW

Model:

328xi

Model Code Internal:

E90/E91 (Sedan/Wagon)

Model Years Covered:

2006, 2007, 2008, 2009, 2010

Chassis Code:

E90 (Sedan), E91 (Wagon)

Engine Code:

N51 (B30 Valvetronic)

👋 Introduction

Market Position:

The BMW 3 Series (E90/E91) represented BMW's core premium compact executive segment, competing directly with models like the Mercedes-Benz C-Class and Audi A4. The 328xi variant specifically targeted buyers seeking enhanced traction and all-weather capability.

Competitive Analysis:

The E90 generation 3 Series, including the 328xi, was lauded for its driving dynamics, refined interiors, and advanced technology. This manual provides the essential technical data required to maintain and repair these sophisticated vehicles, offering a distinct advantage for owners and independent repair facilities.

Key Features:

Inline-6 engine, xDrive all-wheel-drive system, advanced electronic stability control, high-quality interior materials, sophisticated chassis design.

📋 Manual Details

Coverage Areas:

All major mechanical and electrical systems, bodywork, interior, and accessories for the BMW 328xi (E90/E91) from 2006-2010.

Page Count:

Extensive (specific number not provided, but described as 'full' and used by professionals).

Manual Type:

Service Repair Workshop Manual

Language:

English

Format:

Digital (likely PDF, implied by 'All ma......' suggesting a digital transmission of comprehensive data).

📖 Manual Coverage

Systems Covered:

Engine, Drivetrain (xDrive AWD), Transmission (Automatic & Manual), Suspension, Steering, Brakes (including ABS, DSC), Fuel System, Cooling System, Exhaust System, Electrical Systems (ECU, sensors, wiring diagrams), Climate Control, SRS Airbag Systems, Chassis, Body & Frame, Interior Trim, Exterior Body Panels, Diagnostics and Troubleshooting.

Procedures Included:

Routine maintenance, scheduled service, component removal and installation, rebuilding procedures, diagnostic fault finding, troubleshooting flowcharts, wiring harness repair, specific component adjustments, special tool usage, torque specifications, fluid capacities and types, emissions control systems.

Technical Depth:

Comprehensive, covering everything from basic fluid changes and inspections to in-depth engine and transmission overhauls, electrical system diagnostics, and body repair. Suitable for professional mechanics and advanced DIY enthusiasts.

📊 Manual Specifications

File Format:

PDF (Portable Document Format) - Likely, allowing for searchability and easy access.

Print Quality:

High Resolution - Essential for clear diagrams, schematics, and illustrations.

Binding Type:

N/A (Digital Format)

Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Type:

Naturally Aspirated Inline 6-Cylinder

Engine Displacement:

3.0 Liters (2996 cc)

Engine Code:

N51B30

Valve Mechanism:

Double Overhead Camshafts (DOHC), 24 Valves, Valvetronic

Horsepower:

Approx. 230 hp @ 6500 RPM

Torque:

Approx. 200 lb-ft @ 2750 RPM

Fuel Delivery:

Electronic Fuel Injection (EFI) with Siemens DME (Digital Motor Electronics)

Fuel Type:

Premium Unleaded Gasoline (91 Octane or higher recommended)

Block Material:

Aluminum Alloy

Head Material:

Aluminum Alloy

🔧 Transmission

Transmission Type:

6-Speed Manual (Optional on some models, but 328xi often came with Auto)

Transmission Type:

6-Speed Steptronic Automatic with Adaptive Transmission Control (ATC)

Drivetrain:

xDrive All-Wheel Drive (Permanent AWD with Variable Torque Distribution)

Automatic Transmission Fluid Spec:

BMW ATF LT-3 (or equivalent specified by manufacturer)

Manual Transmission Fluid Spec:

BMW MTF LT-2 (or equivalent specified by manufacturer)

📐 Dimensions

Wheelbase:

Approx. 108.7 inches (2760 mm)

Length:

Approx. 181.2 inches (4603 mm) for Sedan, 181.1 inches (4600 mm) for Wagon

Width:

Approx. 70.1 inches (1781 mm)

Height:

Approx. 57.7 inches (1466 mm) for Sedan, 57.2 inches (1453 mm) for Wagon

Curb Weight:

Approx. 3600-3750 lbs (1633-1701 kg)

Gross Vehicle Weight Rating:

N/A (Specific GVWR typically found in owner's manual or vehicle door jamb)

Standard Wheel Size:

17 inches

Optional Wheel Size:

18 inches

Standard Tire Size:

225/45R17

Wheel Bolt Pattern:

5x120 mm

Center Bore:

72.5 mm

🛡️ Safety Features

NHTSA Front Impact:

5-Star (Driver and Passenger)

NHTSA Side Impact:

5-Star (Front and Rear Passengers)

IIHS Top Safety Pick:

Likely achieved 'Good' ratings in most categories for this generation.

Active Safety Features:

Dynamic Stability Control (DSC), Dynamic Traction Control (DTC), Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assist (BA), All-Wheel Drive (xDrive).

Passive Safety Features:

Front-impact airbags (driver and passenger), Side-impact airbags (front and rear), Curtain airbags (front and rear), Active front head restraints, Three-point seatbelts with pretensioners and force limiters, Crumple zones.

💡 Technology Features

Infotainment System:

iDrive Control System (CCC or CIC depending on options and year), optional navigation, satellite radio, premium audio systems (e.g., Harman Kardon).

Driver Assistance Features:

Park Distance Control (PDC), Cruise Control, Rain-sensing wipers, Automatic headlights.

Connectivity Options:

Bluetooth hands-free interface (optional), USB/Auxiliary audio input.

Engine Management System:

Siemens MSV80 DME (Digital Motor Electronics) with Valvetronic and Double VANOS.

🔧 Maintenance

Oil Change Interval:

Typically every 10,000-15,000 miles or 12-24 months, as indicated by the vehicle's Condition Based Service (CBS) system.

Microfilter Replacement:

Recommended every 2 years or 30,000 miles.

Brake Fluid Flush:

Recommended every 2 years, regardless of mileage.

Spark Plug Replacement:

Recommended around 60,000 miles for the N51 engine.

Engine Oil Specification:

SAE 0W-30 or 0W-40 Synthetic; BMW Longlife-01 (LL-01) or Longlife-01 FE (LL-01 FE) approved.

Coolant Specification:

BMW Blue Antifreeze/Coolant (G48 ethylene glycol based, mixed 50/50 with distilled water).

Power Steering Fluid Spec:

Pentosin CHF 11S (or equivalent specified by BMW, often identified as hydraulic fluid).

Known Issues:

Common issues can include: Oil leaks (valve cover gasket, oil pan gasket), PCV (Positive Crankcase Ventilation) system failures leading to rough idle or oil consumption, Water pump failure (often plastic impeller), Ignition coil and spark plug issues, ABS/DSC sensor failures, Electric power steering issues (on later E90 variants, though 328xi is hydraulic), VANOS (Variable Valve Timing) solenoid issues, Crankshaft Position Sensor failure.

Common Diagnostic Trouble Codes:

P0300-P0306 (Misfires), P0171/P0174 (System Too Lean), P0442 (Evaporative Emission System Leak Detected), P0130-P0135 (Oxygen Sensor Circuits), P0190-P0194 (Fuel Rail Pressure Sensor).

📚 Vehicle History

Brand Heritage:

BMW has a long-standing reputation for producing sporty, premium automobiles with a focus on driving pleasure. The 3 Series has been the marque's backbone for decades, consistently setting benchmarks in its class.

Model Evolution:

The E90 generation marked a significant evolution for the 3 Series, introducing more advanced technology, improved comfort, and sharper styling compared to its E46 predecessor. The 328xi model further solidified its appeal by offering the renowned BMW driving experience in conjunction with all-weather capability.

Production Years For E90 328Xi:

2007-2011 (US Market, 2006 for international markets with similar engine configurations)

Production Locations:

Primarily Dingolfing, Germany; also Spartanburg, South Carolina, USA for certain variants.

🏆 Awards & Recognition

Recognitions:

The E90 3 Series generation frequently appeared on 'Car and Driver's' 10Best lists and received numerous accolades for its performance, handling, and overall value proposition as a premium sport sedan.