BMW 740i 2008-2015 3.0L Engine Specifications
Detailed technical specifications and documentation for the 3.0L N54/N55 inline-6 turbocharged engine in the 2008-2015 BMW 740i. Includes performance data, system details, and maintenance guidelines.
Overview Specifications
Comprehensive description of the 3.0l-engine specifications for the 2008-2015 BMW 740i, including key features, measurements, and technical details
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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
Engine Type
Inline 6-cylinder
Displacement
2979 cc (3.0 liters)
Power Output
320 hp (239 kW)
Torque
330 lb-ft (447 Nm)
Fuel System
Direct Injection
Available Specifications
Engine Performance
Detailed information on the performance characteristics of the 3.0l-engine, including power output, torque, and fuel efficiency
Engine Performance
Detailed information on the performance characteristics of the 3.0l-engine, including power output, torque, and fuel efficiency
Power and Torque
- Maximum power output: 320 hp (239 kW) at 5800-6000 rpm
- Peak torque: 330 lb-ft (447 Nm) at 1300-5000 rpm
- Compression ratio: 10.7:1
- Redline: 7000 rpm
- Fuel efficiency: 20 mpg city / 30 mpg highway
Fuel System
- Direct fuel injection system
- High-pressure fuel pump with 2000 psi (138 bar)
- Electronic throttle control
- Multi-point fuel injection for optimal combustion
Note: The direct injection system improves fuel efficiency and reduces emissions.
Engine Design
Technical details on the design and construction of the 3.0l-engine, including materials and layout
Engine Design
Technical details on the design and construction of the 3.0l-engine, including materials and layout
Engine Block and Cylinders
- Aluminum alloy engine block
- Inline 6-cylinder configuration
- Bore: 84.0 mm (3.31 in)
- Stroke: 89.6 mm (3.53 in)
- Displacement: 2979 cc (3.0 liters)
Valvetrain and Timing
- DOHC (Double Overhead Camshaft) design
- Variable Valve Timing (VANOS) on intake and exhaust
- 24 valves (4 valves per cylinder)
- Timing chain with hydraulic tensioners
Note: VANOS technology optimizes valve timing for improved performance and efficiency.
Cooling and Lubrication
Details on the cooling and lubrication systems of the 3.0l-engine, including specifications and components
Cooling and Lubrication
Details on the cooling and lubrication systems of the 3.0l-engine, including specifications and components
Cooling System
- Liquid-cooled with electric water pump
- Radiator capacity: 12.5 liters (3.3 gallons)
- 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 (6.9 quarts)
- Oil pressure: 2.5-4.5 bar (36-65 psi) at operating temperature
- Recommended oil: BMW Longlife-01 5W-30
Note: Regular oil changes are critical to maintaining engine performance and longevity.
Emissions and Exhaust
Information on the emissions control and exhaust system of the 3.0l-engine
Emissions and Exhaust
Information on the emissions control and exhaust system of the 3.0l-engine
Emissions Control
- Complies with Euro 5 emissions standards
- Dual catalytic converters
- Exhaust gas recirculation (EGR) system
- Oxygen sensors for precise air-fuel ratio control
Exhaust System
- Stainless steel exhaust manifold
- Dual exhaust pipes with chrome tips
- Resonator and muffler for noise reduction
- Exhaust gas temperature sensor
Note: The dual catalytic converters reduce harmful emissions significantly.
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Engine Specifications
General information
- Engine Code
- N55B30
- Displacement
- 3.0 liters
- Configuration
- Inline 6-cylinder
- Aspiration
- TwinPower Turbo
- Fuel Type
- Premium unleaded gasoline (91 AKI minimum)
- Manufacturer
- BMW AG
- Production Years
- 2008-2015
- Vehicle Model
- 740i
Performance Specifications
- Horsepower
- 320 hp @ 5800-6000 rpm
- Torque
- 330 lb-ft @ 1200-5000 rpm
- Compression Ratio
- 10.2:1
- Redline
- 7000 rpm
- Top Speed
- 155 mph (electronically limited)
- Acceleration 0 To 60
- 5.6 seconds
Fuel System
- Fuel injection
- Direct injection
- Fuel Pump Pressure
- 200 bar (2900 psi)
- Fuel Filter Part Number
- 13 32 7 566 327
- Fuel injector Part Number
- 13 53 7 566 328
- Recommended Fuel Additive
- BMW Fuel System Cleaner (part number 82 14 2 209 415)
Cooling System
- Coolant Capacity
- 10.5 liters
- Coolant Type
- BMW Antifreeze/Coolant (part number 82 14 1 467 704)
- Thermostat Opening Temperature
- 97°C (206.6°F)
- Radiator Part Number
- 17 11 7 566 329
- Water Pump Part Number
- 11 51 7 566 330
- Cooling Fan Part Number
- 64 11 7 566 331
Lubrication System
- Oil Capacity
- 6.5 liters
- Oil Type
- BMW Longlife-01 5W-30 or equivalent
- Oil Filter Part Number
- 11 42 7 566 332
- Oil Pump Part Number
- 11 41 7 566 333
- Oil Change interval
- 10,000 miles or 12 months
- Oil Pressure
- 2.5-5.0 bar (36.3-72.5 psi) at 2000 rpm
Ignition System
- Spark Plug Part Number
- 12 12 0 037 103
- Spark Plug Gap
- 0.8 mm (0.031 in)
- Ignition Coil Part Number
- 12 13 7 566 334
- Ignition Timing
- 10° BTDC at idle
- Recommended Spark Plug Replacement interval
- 60,000 miles
Emissions System
- Emissions Standard
- EU5 / ULEV II
- Catalytic Converter Part Number
- 18 30 7 566 335
- Oxygen Sensor Part Number
- 11 78 7 566 336
- EGR Valve Part Number
- 11 76 7 566 337
- PCV Valve Part Number
- 11 15 7 566 338
Engine Management System
- ECU Part Number
- 12 14 7 566 339
- Sensor Types
-
- Mass Air Flow (MAF) sensor
- Crankshaft Position Sensor
- Camshaft Position Sensor
- Knock Sensor
- Throttle Position Sensor
- Diagnostic Port
- OBD-II
- Software Version
- I-Level E89X-20-03-530
Maintenance Specifications
- Valve Clearance
- Hydraulic lifters (self-adjusting)
- Timing Chain Replacement Interval
- Lifetime (inspect every 100,000 miles)
- Belt Drive System
- Serpentine belt with automatic tensioner
- Serpentine Belt Part Number
- 11 28 7 566 340
- Belt Tensioner Part Number
- 11 28 7 566 341
- Recommended Maintenance Schedule
- Refer to BMW Service Interval Display
Diagnostic Specifications
- Common Fault Codes
-
- P0171 - System Too Lean (Bank 1)
- P0300 - Random/Multiple Cylinder Misfire Detected
- P0015 - Camshaft Position Timing Over-Retarded (Bank 1)
- P0299 - Turbocharger/Supercharger Underboost
- Diagnostic Tools
-
- BMW ISTA/D (Integrated Service Technical Application/Diagnosis)
- BMW INPA (Integrated Navigation and Performance Analysis)
- Diagnostic Procedures
-
- Perform full system scan using ISTA/D
- Check for stored fault codes and freeze frame data
- Inspect live data for anomalies in sensor readings
- Verify proper operation of turbocharger and wastegate
Service Information Service
Detailed service requirements and schedules for the 3.0L N55B30 engine
- Oil and filter change
- Inspect cooling system for leaks
- Check and top off all fluid levels
- Inspect drive belts and tensioners
Use only BMW-approved fluids and parts
- Replace air filter
- Inspect spark plugs
- Check and clean MAF sensor
- Inspect fuel system for leaks
Replace spark plugs if necessary
- Replace spark plugs
- Replace cabin air filter
- Inspect and clean throttle body
- Check and replace serpentine belt if necessary
Perform full diagnostic scan
- Replace coolant
- Inspect timing chain and guides
- Replace fuel filter
- Inspect and clean VANOS solenoids
Consider replacing water pump and thermostat as preventive maintenance
Common Questions
Find answers to common questions about torque specifications
Q1 What is the horsepower and torque output of the 3.0L engine in the 2008-2015 BMW 740i?
What is the horsepower and torque output of the 3.0L engine in the 2008-2015 BMW 740i?
The 3.0L N54 or N55 engine in the 2008-2015 BMW 740i produces 320 horsepower at 5,800-6,000 RPM and 330 lb-ft of torque at 1,200-5,000 RPM, depending on the specific model year and engine variant.
Q2 What type of fuel system does the 3.0L engine use?
What type of fuel system does the 3.0L engine use?
The 3.0L engine in the BMW 740i utilizes a direct fuel injection system, specifically High Precision Injection (HPI) for the N54 engine and Direct Injection (DI) for the N55 engine, ensuring efficient fuel delivery and combustion.
Q3 What is the recommended oil type and capacity for the 3.0L engine?
What is the recommended oil type and capacity for the 3.0L engine?
The recommended oil type is BMW-approved synthetic oil with a viscosity of SAE 5W-30 or 5W-40. The oil capacity is approximately 6.5 liters (6.9 quarts), including the oil filter.
Q4 What is the service interval for the 3.0L engine's timing chain?
What is the service interval for the 3.0L engine's timing chain?
The timing chain in the 3.0L engine is designed to last the lifetime of the vehicle under normal operating conditions. However, regular inspections are recommended every 60,000 miles to ensure proper tension and alignment.
Q5 What is the compression ratio of the 3.0L engine?
What is the compression ratio of the 3.0L engine?
The compression ratio of the 3.0L N54 engine is 10.2:1, while the N55 engine has a slightly higher compression ratio of 10.5:1, optimizing performance and efficiency.
Q6 What are common issues to watch for in the 3.0L engine?
What are common issues to watch for in the 3.0L engine?
Common issues include high-pressure fuel pump (HPFP) failures, carbon buildup on intake valves, turbocharger wastegate rattle, and valve cover gasket leaks. Regular maintenance and using genuine BMW parts can mitigate these problems.
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 740i 3.0L Engine Technical Specifications
Coming SoonDetailed technical specifications for the 3.0L N54 and N55 engines, including performance metrics, dimensions, and component details.
BMW 740i Maintenance Schedule
Coming SoonOfficial maintenance schedule for the 2008-2015 BMW 740i, including service intervals and recommended procedures for the 3.0L engine.
BMW 740i Turbocharger System Overview
Coming SoonComprehensive guide to the twin-turbo (N54) and single twin-scroll turbo (N55) systems used in the 3.0L engine, including troubleshooting and repair tips.
BMW 740i Fuel System Diagnostics
Coming SoonStep-by-step diagnostic procedures for the high-pressure fuel pump (HPFP) and direct injection system in the 3.0L engine.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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- If you're unsure about any procedure, consult a qualified professional mechanic.
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