🏷️ Basic Information

Make:

BMW

Model:

328xi

Year:

2008

Chassis Code:

E90/E91 (Sedan/Wagon)

Engine Code:

N52B30A

👋 Introduction

Segment:

Premium Compact Executive Sedan/Wagon

Competitors:

Audi A4 Quattro, Mercedes-Benz C300 4MATIC, Lexus IS250 AWD, Acura TL SH-AWD.

Differentiation:

BMW's hallmark driving dynamics, potent inline-six engine, sophisticated xDrive all-wheel-drive system, and refined interior. The 328xi offered a compelling blend of performance, luxury, and all-weather capability.

Driving Dynamics:

Rear-biased xDrive system, balanced chassis, responsive steering.

Powertrain:

Smooth and powerful 3.0L inline-six engine.

Interior:

Premium materials, ergonomic design, advanced iDrive infotainment system.

Availability:

Offered as both a sedan (E90) and a wagon (E91) body style.

📋 Manual Details

Coverage:

Complete Service and Repair

Estimated Pages:

1000+

Type:

Service and Repair Manual Software

Language:

English

Format:

Digital Software (Likely PDF or proprietary executable)

📖 Manual Coverage

Engine Mechanical:

Engine assembly, cylinder head, valvetrain, crankshaft, pistons, connecting rods, lubrication system, cooling system, fuel system (injection, pump, lines), intake system, exhaust system, engine management (ECU functions).

Engine Electrical:

Ignition system, starting system, charging system, fuel injectors, sensors (crankshaft position, camshaft position, oxygen, MAP, IAT, knock), emission control systems (EVAP, secondary air injection).

Transmission:

Automatic transmission (ZF GA6HP19Z) and manual transmission (Getrag GS6-17BG), torque converter, clutch assembly, shift mechanisms, transmission control module (TCM), fluid specifications, diagnosis, and repair.

Drivetrain:

All-wheel drive system (xDrive), differentials (front, rear, center), driveshafts, axles, CV joints, wheel bearings.

Brakes:

Hydraulic system, ABS (Anti-lock Braking System), DSC (Dynamic Stability Control), brake calipers, rotors, pads, parking brake, hydraulic lines, bleeding procedures, diagnosis.

Suspension:

Front suspension (struts, control arms, ball joints), rear suspension (multi-link, subframe), shock absorbers, springs, sway bars, power steering system (hydraulic rack and pinion), wheel alignment specifications.

Steering:

Power steering system, steering column, steering rack, tie rods, alignment procedures, troubleshooting.

Electrical Body:

Lighting system (headlights, taillights, interior), power windows, power locks, mirrors, wipers, horn, central locking system, keyless entry, alarm system.

Climate Control:

HVAC system, refrigerant charging, blower motor, A/C compressor, heater core, climate control module, diagnosis, and repair.

Interior Trim:

Dashboard removal, door panel removal, seat removal, headliner, center console, trim pieces, airbag system safety precautions.

Body Exterior:

Body panels, doors, hood, trunk lid, bumpers, exterior trim, glass, seals, hinges, latches.

Diagnostics:

OBD-II (On-Board Diagnostics) system, diagnostic trouble codes (DTCs), scan tool usage, troubleshooting flowcharts, symptom-based diagnosis.

Routine Maintenance:

Oil changes, filter replacements (oil, air, cabin, fuel), spark plug replacement, fluid checks and top-offs, tire rotations, brake inspections.

Major Repairs:

Engine overhaul, transmission overhaul, clutch replacement, brake system repairs, suspension component replacement, driveshaft and axle repairs, electrical component diagnosis and replacement.

Troubleshooting:

Step-by-step diagnostic procedures for common and uncommon problems across all vehicle systems, including wiring diagrams and component testing.

Component Replacement:

Detailed instructions for replacing components such as alternators, starters, fuel pumps, radiators, water pumps, A/C compressors, sensors, ECUs, and more.

Specifications:

Torque specifications for all fasteners, fluid capacities, electrical system specifications, diagnostic data, and performance parameters.

Depth:

Comprehensive, covering everything from basic preventative maintenance to complete engine and transmission rebuilds, including detailed electrical troubleshooting and wiring diagrams.

📊 Manual Specifications

File Type:

Digital Software (e.g., PDF, EXE, HTML-based)

Searchability:

Likely searchable text content for quick information retrieval.

Interactivity:

May include clickable links to diagrams, tables of contents, and cross-references.

Quality:

High-resolution digital content, allowing for clear printing of diagrams and text.

Type:

Not Applicable (Digital Software)

Type:

Not Applicable (Digital Software)

⚙️ Engine Specifications

Engine Type:

Naturally Aspirated Inline 6-Cylinder

Displacement:

2996 cc (3.0 Liters)

Bore X Stroke:

85.0 mm x 88.0 mm

Compression Ratio:

10.7:1

Valvetrain:

Double Overhead Camshafts (DOHC), 24 Valves, VANOS (Variable Valve Timing), VALVETRONIC (Variable Valve Lift).

Horsepower:

230 hp @ 6500 rpm

Torque:

200 lb-ft @ 2750 rpm

Fuel Delivery:

Sequential Electronic Fuel Injection (EFI)

Fuel Type:

Premium Unleaded Gasoline (91+ octane recommended)

Emission Control:

Catalytic Converter, Secondary Air Injection System, EVAP Emission Control System.

🔧 Transmission

Type:

6-speed Manual Transmission (Getrag GS6-17BG)

Type:

6-speed Automatic Transmission with Steptronic (ZF GA6HP19Z)

Automatic Features:

Adaptive Transmission Control (ATC), electronic shift lever, manual shifting mode (Steptronic), sport mode.

Automatic Fluid:

BMW Longlife-01 Approved ATF (e.g., Pentosin ATF1 or equivalent)

Manual Fluid:

BMW MTF LT-2 (Manual Transmission Fluid)

📐 Dimensions

Length Sedan:

181.9 inches (4620 mm)

Width:

70.1 inches (1781 mm)

Height Sedan:

56.7 inches (1441 mm)

Wheelbase:

108.7 inches (2760 mm)

Trunk Volume Sedan:

12.0 cubic feet (340 liters)

Curb Weight Manual:

Approx. 3571 lbs (1620 kg)

Curb Weight Automatic:

Approx. 3649 lbs (1655 kg)

Gross Vehicle Weight Rating:

Approx. 4630 lbs (2100 kg)

Standard Wheel Size:

17 x 8.0 inches

Standard Tire Size:

225/45R17

Bolt Pattern:

5x120 mm

Center Bore:

72.6 mm

🛡️ Safety Features

NHTSA Frontal Driver:

5-Star

NHTSA Frontal Passenger:

5-Star

NHTSA Side Driver:

5-Star

NHTSA Side Rear Passenger:

4-Star

NHTSA Rollover:

4-Star

IIHS Top Safety Pick:

Yes

Stability Control:

Dynamic Stability Control (DSC) including Traction Control System (TCS), Automatic Differential Brake (ADB-X).

Braking Control:

Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assist (BA), Dynamic Brake Control (DBC).

All Wheel Drive:

xDrive Intelligent All-Wheel Drive System

Airbags:

Front airbags (driver and passenger), front side-impact airbags, front and rear head protection system (side curtain airbags).

Seatbelts:

3-point inertia-reel seat belts with pre-tensioners and force limiters, active front head restraints.

Child Seat Anchors:

LATCH (Lower Anchors and Tethers for CHildren) system.

💡 Technology Features

System:

iDrive System (CCC or CIC depending on specific build date/options)

Features:

Optional navigation system, satellite radio, CD player, aux input, Bluetooth connectivity (phone and audio streaming).

Display:

Central LCD display integrated into the dashboard.

Features:

Park Distance Control (PDC), Adaptive Xenon Headlights, Rain-sensing wipers and automatic headlight control.

Features:

Optional BMW Assist (telematics service with emergency call function), Bluetooth hands-free interface.

🔧 Maintenance

Oil Change Interval:

Variable Service Interval Indicator (VSI) based on driving conditions, typically around 10,000-15,000 miles or 12-24 months.

Air Filter Replacement:

Check every 30,000 miles, replace as needed. Often tied to VSI.

Cabin Filter Replacement:

Check every 30,000 miles, replace as needed. Often tied to VSI.

Spark Plug Replacement:

Long-life spark plugs (e.g., NGK SILZKFR6A11), typically recommended for replacement around 60,000-100,000 miles depending on VSI.

Brake Fluid Flush:

Every 2 years, regardless of mileage.

Coolant Replacement:

BMW Blue Antifreeze/Coolant (G48), typically recommended at 100,000 miles or 5 years, then every 2 years thereafter.

Engine Oil:

BMW Longlife-01 (LL-01) or Longlife-01 FE (LL-01 FE) approved synthetic oil, typically 0W-30 or 5W-30.

Engine Oil Capacity:

6.5 US quarts (6.2 liters) with filter change for N52B30 engine.

Power Steering Fluid:

BMW Power Steering Fluid (G002000 or equivalent Pentosin CHF 11S).

Oil Filter Housing Gasket:

Common leak point, requires replacement of gasket/seal.

Valvetronic Actuator Motor:

Can fail, leading to rough idle or check engine light. Often requires replacement.

Water Pump:

Electric water pump can fail, leading to overheating. Early models had mechanical pumps.

Pcv Valve And Breather Hose:

Can clog or crack, leading to vacuum leaks and rough running.

Thermostat:

Can fail, causing temperature regulation issues.

ABS Dsc Wheel Speed Sensors:

Can fail, triggering ABS/DSC warning lights.

📚 Vehicle History

Legacy:

BMW AG, a German automotive manufacturer, has a long-standing reputation for producing vehicles with exceptional driving dynamics, performance, and engineering excellence since its founding in 1916.

Generation:

Part of the fifth generation of the BMW 3 Series (E90/E91/E92/E93), which debuted in 2005.

Introduction Of AWD:

The 'xi' designation signifies BMW's xDrive all-wheel-drive system, which became widely available across the 3 Series lineup starting with this generation.

Production Years:

E90 Sedan: 2005-2011; E91 Wagon: 2005-2012.

Manufacturing Locations:

Primarily produced at BMW's plants in Germany (e.g., Dingolfing, Munich), with potential assembly in other global locations.

🏆 Awards & Recognition

Ward'S 10 Best Engines:

The N52 engine (3.0L inline-6) was a multiple-time recipient of Ward's 10 Best Engines award, recognized for its smooth power delivery, efficiency, and technology.