BMW 340i 2005-2011

BMW 340i 2005-2011 3.0L Engine Specifications

Detailed technical specifications and documentation for the 3.0L inline-6 engine in the 2005-2011 BMW 340I. Includes performance data, system details, and maintenance guidelines.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the 3.0l-engine specifications for the 2005-2011 BMW 340I, including key features, measurements, and technical details

How to Use

Use the search function to locate specific 3.0l-engine specifications by entering keywords such as 'torque', 'horsepower', or 'compression ratio'.

Navigate through the documentation sections using the table of contents or by scrolling through the major sections and subsections.

Key Specifications

Displacement

3.0 liters (2996 cc)

Horsepower

300 hp @ 5800 rpm

Torque

300 lb-ft @ 1400-5000 rpm

Compression Ratio

10.7:1

Oil Capacity

6.5 liters

Available Specifications

Engine Design and Architecture

Details about the design, layout, and architecture of the 3.0l-engine

Engine Configuration

Inline 6-cylinder configuration
DOHC (Double Overhead Camshaft) design
Aluminum alloy block and cylinder head
Valvetronic variable valve lift system

Displacement and Compression

Displacement: 3.0 liters (2996 cc)
Compression ratio: 10.7:1
Bore: 85 mm
Stroke: 88 mm

Note: The high compression ratio enhances fuel efficiency and performance.

Performance Specifications

Technical details about the engine's performance capabilities

Power and Torque

Maximum horsepower: 300 hp @ 5800 rpm
Maximum torque: 300 lb-ft @ 1400-5000 rpm
Redline: 7000 rpm
Fuel delivery: Direct injection

Fuel Efficiency

City fuel economy: 18 mpg
Highway fuel economy: 28 mpg
Combined fuel economy: 22 mpg
Fuel type: Premium unleaded (91 octane or higher)

Note: Fuel efficiency may vary based on driving conditions and maintenance.

Cooling and Lubrication Systems

Details about the engine's cooling and lubrication systems

Cooling System

Liquid-cooled with electric water pump
Radiator capacity: 10.5 liters
Thermostat opening temperature: 97°C (207°F)
Coolant type: BMW-approved ethylene glycol-based coolant

Lubrication System

Wet sump oil system
Oil capacity: 6.5 liters
Oil type: BMW LL-01 approved synthetic 5W-30
Oil change interval: 15,000 miles or 12 months

Note: Regular oil changes are critical for maintaining engine performance.

Emissions and Exhaust System

Information about the engine's emissions control and exhaust system

Emissions Control

Complies with Euro 5 emissions standards
Dual VANOS variable valve timing
Catalytic converter integrated into the exhaust manifold
Oxygen sensors: 2 upstream, 2 downstream

Exhaust System

Dual exhaust system with chrome tips
Exhaust diameter: 70 mm
Backpressure: 0.8 bar at full load
Exhaust gas recirculation (EGR) system

Note: The dual exhaust system enhances performance and reduces backpressure.

Search Specifications

Search by specification name, value, or description

Engine Specifications

General information

Engine Code: N54B30

Engine Type: Inline 6-cylinder, turbocharged

Displacement: 3.0 liters (2979 cc)

Bore: 84.0 mm

Stroke: 89.6 mm

Compression Ratio: 10.2:1

Fuel System: Direct injection (High Precision Injection)

Fuel Type: Premium unleaded (91 AKI minimum)

Performance

Power Output: 300 hp @ 5800 rpm

Torque: 300 lb-ft @ 1400-5000 rpm

Redline: 7000 rpm

Boost Pressure: 8.8 psi (0.6 bar)

Top Speed: 155 mph (electronically limited)

Acceleration 0 To 60: 5.1 seconds

Engine Components

Cylinder Head: Material: Aluminum alloy
Valvetrain: DOHC, 24 valves
Valve Diameter intake: 32.0 mm
Valve Diameter Exhaust: 28.0 mm

Pistons: Material: Aluminum alloy
Piston Ring Gap: Top Ring: 0.20-0.35 mm, Second Ring: 0.40-0.55 mm, Oil Ring: 0.25-0.50 mm

Crankshaft: Material: Forged steel
Main Journal Diameter: 60.0 mm
Rod Journal Diameter: 48.0 mm

Turbocharger System

Type: Twin-turbo, parallel configuration

Turbo Model: BorgWarner K03

Wastegate Actuation: Electronic

Boost Control: Electronic wastegate with variable turbine geometry

Maximum Boost Pressure: 14.5 psi (1.0 bar)

intercooler Type: Air-to-air

Lubrication System

Oil Capacity: 6.5 liters (with filter)

Oil Type: BMW Longlife-01 5W-30 or equivalent

Oil Pump Type: Gerotor

Oil Pressure: Idle: 1.0 bar (14.5 psi)
Operating: 3.0-4.5 bar (43.5-65.3 psi)

Oil Filter Part Number: 11 42 7 566 327

Cooling System

Coolant Capacity: 10.5 liters

Coolant Type: BMW Antifreeze/Coolant (50/50 mix)

Thermostat Opening Temperature: 97°C (207°F)

Radiator Type: Aluminum, cross-flow

Water Pump Type: Electric, variable speed

Ignition System

Spark Plug Type: Bosch ZGR6STE2

Spark Plug Gap: 0.028-0.032 inches (0.7-0.8 mm)

Ignition Coil Type: Pencil coil

Ignition Coil Part Number: 12 13 7 566 112

Ignition Timing: Fully electronic, variable

Fuel System

Fuel Pump Type: Electric, in-tank

Fuel Pump Part Number: 16 14 7 181 798

Fuel Pressure: 5.0 bar (72.5 psi)

injector Type: Solenoid, direct injection

injector Part Number: 13 53 7 566 112

Fuel Rail Pressure: 150-200 bar (2175-2900 psi)

Emissions Control

Catalytic Converter Type: Three-way catalyst

Oxygen Sensor Type: Planar wideband

Oxygen Sensor Part Number: 11 78 7 566 112

Exhaust Gas Recirculation: None (turbocharged engines do not use EGR)

Evaporative Emissions System: Sealed system with charcoal canister

Maintenance Specifications

Spark Plug Replacement interval: 60,000 miles

Engine Oil Change Interval: 10,000 miles or 12 months

Coolant Replacement interval: 4 years or 60,000 miles

Air Filter Replacement interval: 30,000 miles

Fuel Filter Replacement interval: 60,000 miles

Timing Chain Inspection Interval: 100,000 miles

Diagnostic Specifications

Onboard Diagnostic System: OBD-II compliant

Diagnostic Connector Location: Under dashboard, driver's side

Common Fault Codes

P0171 - System too lean (Bank 1)
P0300 - Random/Multiple Cylinder Misfire Detected
P0299 - Turbocharger/Supercharger Underboost
P0128 - Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)

Diagnostic Tool: BMW ISTA/D or compatible OBD-II scanner

Service Information Service

Detailed service requirements and schedules for the 3.0L N54B30 engine

10,000

Engine oil and filter change
Inspect cooling system for leaks
Check and top off all fluid levels
Inspect drive belts for wear

Use only BMW-approved fluids and filters

30,000

Replace engine air filter
Inspect spark plugs
Check turbocharger system for leaks
Inspect fuel system for leaks

Replace spark plugs if necessary

60,000

Replace spark plugs
Replace fuel filter
Replace coolant
Inspect timing chain and tensioner

Timing chain inspection is critical for long-term reliability

100,000

120

Replace timing chain and guides if necessary
Inspect and replace turbocharger components if needed
Replace all drive belts
Perform comprehensive engine diagnostic

High-mileage engines may require additional maintenance

Common Questions

Find answers to common questions about torque specifications

What is the horsepower and torque output of the 3.0L engine in the 2005-2011 BMW 340i?

The 3.0L N52 engine in the 2005-2011 BMW 340i produces 255 horsepower at 6,600 rpm and 220 lb-ft of torque at 2,750 rpm. This naturally aspirated inline-6 engine features Valvetronic and Double-VANOS for optimized performance and efficiency.

What type of oil is recommended for the 3.0L engine?

BMW recommends using synthetic engine oil with a viscosity of SAE 5W-30 or SAE 0W-30, meeting BMW Longlife-01 or LL-04 specifications. The oil capacity is approximately 6.9 liters (7.3 quarts) with a filter change.

What is the service interval for the spark plugs in the 3.0L engine?

The spark plugs in the 3.0L N52 engine should be replaced every 60,000 miles (100,000 km) or as specified in the vehicle's maintenance schedule. Use only BMW-approved spark plugs to ensure proper performance and compatibility.

What is the compression ratio of the 3.0L engine?

The 3.0L N52 engine has a compression ratio of 10.7:1, which contributes to its efficient combustion and power output.

How often should the coolant be replaced in the 3.0L engine?

The coolant in the 3.0L engine should be replaced every 4 years or 60,000 miles (100,000 km), whichever comes first. Use only BMW-approved coolant mixed with distilled water in a 50:50 ratio.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

BMW N52 Engine Technical Manual

Coming Soon

Detailed technical manual covering the N52 3.0L engine, including specifications, maintenance procedures, and troubleshooting tips.

BMW Genuine Parts Catalog

Coming Soon

Official catalog for genuine BMW parts, including engine components, filters, and fluids for the 3.0L N52 engine.

BMW Maintenance Schedule Guide

Coming Soon

Comprehensive guide to the recommended maintenance schedule for the 2005-2011 BMW 340i, including engine-specific tasks.

BMW Service Bulletins for N52 Engine

Coming Soon

Collection of service bulletins and updates related to the N52 3.0L engine, addressing common issues and solutions.

Legal Disclaimer

Important information about using this content

Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.

General Information

The information provided on this website is for general informational purposes only. While we strive to maintain accuracy in our content, all specifications, procedures, and technical information should be verified against your vehicle's official service manual or with the manufacturer directly.

Warranty & Liability

The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.

We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.

Technical Information

All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
Vehicle specifications and procedures may vary by model year, trim level, and region.
Always follow the manufacturer's recommended procedures and safety precautions.
Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
If you're unsure about any procedure, consult a qualified professional mechanic.

Intellectual Property

All content, including text, images, and specifications, is protected by copyright and other intellectual property laws. Any unauthorized use or reproduction is prohibited.

About the Author

Expert automotive knowledge and experience

ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

Facebook Contact

15+ Years

Experience

500+ Guides

Guides

50+ Makes

Vehicles

1000+ Solutions

Solutions

Diagnostic

Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.

Repair

Expert in both traditional mechanical repairs and modern vehicle systems.

Additional Expertise

Documentation

Created over 500 detailed repair guides and technical documents.

Training

Conducted technical training sessions and contributed to repair databases.

Certifications & Research

Certifications

ASE Master Technician Certification
Advanced Diagnostic Specialist
Hybrid/Electric Vehicle Systems
Performance Tuning Expert

Research & Community

Actively researches emerging technologies and contributes to automotive forums.