🏷️ Basic Information

Make:

BMW

Model:

328i

Generation Codes:

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

👋 Introduction

Vehicle Class:

Compact Executive Car (Entry-Level Luxury Sedan/Coupe/Convertible)

Target Audience:

Discerning drivers seeking performance, luxury, advanced technology, and engaging driving dynamics.

Key Competitors:

Audi A4, Mercedes-Benz C-Class, Lexus IS, Infiniti G35/G37, Cadillac CTS, Acura TL.

Driving Dynamics:

Renowned for BMW's characteristic balanced chassis, precise steering, and engaging handling.

Powertrain Refinement:

Smooth and powerful naturally aspirated inline-six engine offering linear power delivery.

Build Quality:

High-quality interior materials, solid construction, and premium fit and finish.

Styling:

Classic BMW design language, evolving from the E46 generation with a modern interpretation.

📋 Manual Details

Vehicle Years Covered:

2006, 2007, 2008, 2009, 2010

Model Variants Covered:

All 328i Sedan (E90), Wagon (E91), Coupe (E92), Convertible (E93) models

Estimated Page Count:

Approx. 2000-3000+ pages (typical for comprehensive workshop manuals)

Manual Type:

Workshop Repair Service Manual

Language:

English

Format:

PDF Download

📖 Manual Coverage

Powertrain:

Engine (N52B30), cooling system, fuel system, exhaust system, engine management system (DME), transmission (automatic and manual), clutch, drivetrain (rear-wheel drive).

Chassis:

Suspension (front and rear), steering system, braking system (including ABS, DSC), wheels, tires.

Electrical:

Complete electrical system, wiring diagrams, fuse box diagrams, lighting system, ignition system, starting system, charging system, body control modules (BCM), comfort systems, entertainment system, diagnostic connectors (OBD-II).

Body And Interior:

Body panels, doors, windows, locks, seats, airbags, climate control system, interior trim, exterior trim, convertible top mechanisms (for E93).

Maintenance:

Routine scheduled maintenance (oil changes, filter replacements, fluid checks/changes, spark plugs, drive belts), inspection procedures, lubrication.

Repair And Rebuild:

Engine overhaul and repair, transmission service and overhaul, suspension component replacement, brake system repair, electrical component diagnosis and replacement, bodywork repairs.

Troubleshooting:

Diagnostic flowcharts, common fault symptom analysis, code reader interpretation, repair procedures for specific issues.

Special Procedures:

Alignment specifications, torque specifications for critical fasteners, special tool requirements, diagnostic procedures for complex electronic systems.

Depth Of Coverage:

Comprehensive; covers everything from basic fluid checks and tire rotations to complete engine and transmission rebuilds, advanced electronic diagnostics, and body panel repair.

📊 Manual Specifications

File Type:

PDF

Searchability:

Likely text-searchable for efficient information retrieval.

Print Quality:

High-resolution, suitable for printing individual pages or sections.

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Code:

N52B30

Engine Type:

Naturally Aspirated Inline 6-Cylinder

Displacement:

2,996 cc (3.0 Liters)

Bore X Stroke:

85.0 mm x 88.0 mm

Compression Ratio:

10.7:1

Horsepower:

230 hp @ 6,500 rpm

Torque:

200 lb-ft @ 2,750 rpm

Fuel Delivery:

Sequential Multi-Point Fuel Injection (MPI) with Bosch Motronic ECU

Fuel Type:

Premium Unleaded Gasoline (91+ octane recommended)

Valve Train:

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

🔧 Transmission

Transmission Type Standard:

6-Speed Manual Transmission

Transmission Type Optional:

6-Speed Steptronic Automatic Transmission with Paddle Shifters

Transmission Features:

Rear-wheel drive (RWD) is standard; xDrive all-wheel drive (AWD) was not typically offered on the 328i during this generation, but was available on other 3-Series models (e.g., 328xi).

Manual Transmission Fluid:

BMW recommends specific manual transmission fluids; consult manual for exact specification (e.g., Pentosin MTF LT-2 or equivalent).

Automatic Transmission Fluid:

BMW ATF LT-5 or equivalent synthetic ATF, often Esso JWS 3309 or ZF Lifeguardfluid 5.

📐 Dimensions

Wheelbase:

E90 Sedan: 108.7 inches (2760 mm); E92 Coupe: 108.8 inches (2765 mm)

Length:

E90 Sedan: 178.2 inches (4527 mm); E92 Coupe: 181.8 inches (4618 mm)

Width:

E90 Sedan: 70.2 inches (1782 mm); E92 Coupe: 71.5 inches (1815 mm)

Height:

E90 Sedan: 56.7 inches (1441 mm); E92 Coupe: 54.7 inches (1391 mm)

Curb Weight:

Approx. 3,500 - 3,800 lbs (depending on body style and options)

Gross Vehicle Weight Rating:

Typically around 4,600 - 4,800 lbs

Wheelbase E91 E93:

E91 Touring: 108.7 inches (2760 mm); E93 Convertible: 108.7 inches (2760 mm)

Trunk Capacity:

E90 Sedan: ~12.0 cubic feet; E92 Coupe: ~13.1 cubic feet

🛡️ Safety Features

NHTSA Front Crash Test:

5-Star (for relevant body styles)

IIHS Top Safety Pick:

Generally rated 'Good' in IIHS tests for frontal offset, side impact, and rear impact.

Traction Control:

Dynamic Traction Control (DTC) and Dynamic Stability Control (DSC) standard

Braking System:

Anti-lock Braking System (ABS) with Electronic Brake-force Distribution (EBD) and Brake Assist.

Airbags:

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

Seatbelts:

3-point inertia-reel seatbelts with front-seat pretensioners and force limiters.

Convertible Safety Features:

Reinforced A-pillars, pop-up roll bars (for E93).

💡 Technology Features

Infotainment System:

BMW iDrive system (first generation, CCC or CIC depending on build date and options), with integrated navigation, radio, CD player, and optional satellite radio.

Connectivity:

Bluetooth connectivity for hands-free calling and audio streaming, USB/Aux input for audio.

Cruise Control:

Standard cruise control; optional Adaptive Cruise Control (ACC) on some models.

Parking Assistance:

Optional rear parking sensors (PDC - Park Distance Control) and sometimes front PDC.

Climate Control:

Automatic climate control with multi-zone temperature settings.

Seats:

Power-adjustable front seats with driver memory; optional heated seats, sport seats, and lumbar support.

Headlights:

Standard Halogen headlights; optional Xenon Adaptive Headlights with cornering function.

🔧 Maintenance

Oil Change Interval:

Variable; indicated by the Condition Based Service (CBS) system, typically between 10,000-15,000 miles or annually.

Filter Replacement Schedule:

Engine oil filter with every oil change. Cabin air filter: 15,000-20,000 miles or annually. Engine air filter: 30,000-40,000 miles.

Spark Plug Replacement:

Typically around 60,000-100,000 miles depending on plug type (original Bosch FGR7KQE0U or similar long-life plugs).

Engine Oil Specification:

BMW Longlife-01 (LL-01) or Longlife-04 (LL-04) compliant synthetic oil, typically 5W-30 or 0W-30.

Coolant Specification:

BMW Blue Antifreeze/Coolant (G48) or equivalent, mixed 50/50 with distilled water.

Brake Fluid Specification:

DOT 4 High Performance brake fluid.

Oil Leaks:

Common leaks from valve cover gasket, oil pan gasket, and eccentric shaft sensor O-ring due to age and heat.

Cooling System:

Plastic water pump failures, coolant expansion tank leaks, and hose degradation are common.

Pcv System:

Crankcase Ventilation (CCV) system can clog, leading to increased crankcase pressure, oil consumption, and potential vacuum leaks or seal failures.

Electric Water Pump:

Later models (post-2008 facelifts) featured an electric water pump which is more complex but can also fail, often indicated by a 'coolant low' warning or overheating.

Valvetronic Actuator:

Issues with the Valvetronic eccentric shaft sensor or actuator can cause rough idle or performance issues.

Power Steering:

Hydraulic power steering system can develop leaks at the pump or steering rack. Some early models had electric power steering recall/updates.

📚 Vehicle History

Brand Reputation:

BMW, known as Bayerische Motoren Werke AG, has a long-standing heritage in automotive engineering, particularly for sporty and luxurious vehicles with excellent driving dynamics.

E90 Generation Introduction:

The E90 3 Series generation debuted in 2005 for the 2006 model year, replacing the highly successful E46 generation. The 328i nameplate, previously used for a 3.0L engine in the E46, returned for this generation using the N52B30 engine.

Body Style Expansion:

This generation expanded the 3 Series lineup to include Sedan (E90), Wagon/Touring (E91), Coupe (E92), and Convertible (E93) variants.

Production Period:

2006-2011 (with 2006-2010 being the primary focus of this manual).

Manufacturing Locations:

Primarily manufactured in Germany (Munich, Dingolfing), with some assembly in other global locations.

🏆 Awards & Recognition

Ward'S 10 Best Engines:

The N52 engine (and variants) was frequently recognized on Ward's 10 Best Engines list during its production years for its smoothness and efficiency.

Car And Driver Best 10:

The 3 Series consistently ranked on Car and Driver's 10Best lists for its segment-defining handling and performance.

Consumer Reports Reliability:

Reliability ratings can vary; while the chassis and performance are lauded, specific components like the cooling system and some electronic modules have historically been areas requiring attention.