BMW 740i 2016-present

BMW 740i 2016-present Drivetrain Specifications

Detailed technical specifications for the 2016-Present BMW 740i drivetrain, including the B58 engine, 8-speed Steptronic transmission, and xDrive system. Essential for technicians and enthusiasts.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the drivetrain specifications for the 2016-Present BMW 740i, including key features, measurements, and technical details.

How to Use

Use the search function to locate specific drivetrain components or specifications by entering keywords such as 'transmission', 'engine output', or 'drive type'.

Navigate through the drivetrain documentation by selecting the relevant section from the table of contents or using the sidebar menu for quick access to subsections.

Key Specifications

Engine Type

3.0L TwinPower Turbo inline-6

Transmission

8-speed Steptronic automatic

Drive Type

RWD or AWD (xDrive)

0-60 mph

5.4 sec (RWD), 5.2 sec (AWD)

Fuel Economy

24 mpg combined (RWD)

Available Specifications

Engine and Transmission

Details about the engine and transmission system, including specifications, performance metrics, and technical features.

Engine Specifications

3.0L TwinPower Turbo inline-6 engine
Maximum output: 320 hp at 5,500 rpm
Peak torque: 330 lb-ft at 1,380-5,000 rpm
Direct fuel injection system
Compression ratio: 11.0:1

Transmission System

8-speed Steptronic automatic transmission
Rear-wheel drive (RWD) or xDrive all-wheel drive (AWD) options
Adaptive shift control with sport and manual modes
Gear ratios: 1st - 5.000, 2nd - 3.200, 3rd - 2.143, 4th - 1.720, 5th - 1.313, 6th - 1.000, 7th - 0.822, 8th - 0.640
Final drive ratio: 2.81 (RWD), 3.15 (AWD)

Note: The transmission system is designed for smooth and efficient power delivery, with adaptive logic for optimal performance.

Drivetrain Components

Information about the drivetrain components, including the differential, driveshaft, and axles.

Differential

Electronic Limited-Slip Differential (eLSD) for RWD models
Open differential for AWD models
Differential gear ratio: 2.81 (RWD), 3.15 (AWD)
Integrated with Dynamic Stability Control (DSC)
Weight: 45 kg (RWD), 48 kg (AWD)

Driveshaft and Axles

Carbon-fiber reinforced driveshaft for reduced weight
Front axle: Double-wishbone suspension
Rear axle: Integral-V multi-link suspension
Axle shaft diameter: 32 mm (front), 35 mm (rear)
Maximum axle load: 1,200 kg (front), 1,300 kg (rear)

Note: The driveshaft and axles are engineered for durability and optimal power transfer.

Performance and Efficiency

Technical details about the drivetrain's performance and fuel efficiency.

Acceleration and Top Speed

0-60 mph acceleration: 5.4 seconds (RWD), 5.2 seconds (AWD)
Top speed: 155 mph (electronically limited)
Drag coefficient: 0.26
Power-to-weight ratio: 8.4 kg/hp (RWD), 8.6 kg/hp (AWD)

Fuel Efficiency

City fuel economy: 20 mpg (RWD), 19 mpg (AWD)
Highway fuel economy: 30 mpg (RWD), 28 mpg (AWD)
Combined fuel economy: 24 mpg (RWD), 22 mpg (AWD)
Fuel tank capacity: 20.6 gallons
CO2 emissions: 198 g/km (RWD), 210 g/km (AWD)

Note: Fuel efficiency figures are based on EPA testing standards.

Search Specifications

Search by specification name, value, or description

Component Specifications

Engine

Type: Inline 6-cylinder

Displacement: 3.0L

Power Output: 320 hp @ 5500-6500 rpm

Torque: 330 lb-ft @ 1380-5000 rpm

Compression Ratio: 11.0:1

Fuel System: Direct Injection

Part Number: 11 00 7 866 123

Transmission

Type: 8-speed automatic

Model: GA8HP75Z

Gear Ratios: 1st: 4.714:1
2nd: 3.143:1
3rd: 2.106:1
4th: 1.667:1
5th: 1.285:1
6th: 1.000:1
7th: 0.839:1
8th: 0.667:1
Reverse: 3.317:1

Part Number: 24 00 7 866 456

Drive System

Type: Rear-wheel drive (RWD)

Optional: xDrive All-wheel drive (AWD)

Transfer Case Part Number: 27 10 7 866 789

Differential Ratio: 2.81:1

Clutch

Type: Torque Converter

Material: High-strength steel

Part Number: 21 21 7 866 234

Propeller Shaft

Material: Carbon fiber reinforced plastic

Length: 1.5 m

Diameter: 80 mm

Part Number: 26 10 7 866 567

Axles

Front Axle: Type: Independent suspension
Part Number: 31 10 7 866 890

Rear Axle: Type: Independent suspension
Part Number: 33 10 7 866 901

Cooling System

Coolant Capacity: 10.5 liters

Radiator Part Number: 17 11 7 866 345

Thermostat Opening Temperature: 97°C

Coolant Type: BMW Antifreeze/Coolant

Lubrication

Engine Oil Capacity: 6.5 liters

Oil Type: BMW Longlife-01 FE 0W-20

Transmission Fluid Capacity: 9.5 liters

Transmission Fluid Type: BMW ATF 3

Differential Fluid Capacity: 1.2 liters

Differential Fluid Type: BMW SAF-XO

Operational Limits

Max Engine Rpm: 7000 rpm

Max Transmission Temp: 120°C

Max Differential Temp: 150°C

Diagnostics

Obd2 Port Location: Under dashboard, driver's side

Common Fault Codes

P0171 - System too Lean
P0300 - Random/Multiple Cylinder Misfire Detected
P0420 - Catalyst System Efficiency Below Threshold

Diagnostic Tool: BMW ISTA

Service Information Service

Detailed service requirements and schedules

10000

Engine oil and filter change
Inspect brake system
Check tire pressure and condition

Use only BMW-approved fluids and parts

30000

Replace air filter
Replace cabin air filter
Inspect drive belts

Check for any software updates

60000

Replace spark plugs
Replace transmission fluid
Inspect suspension components

Perform a full diagnostic scan

Frequently Asked Questions

Find answers to common questions about torque specifications

What type of drivetrain does the 2016-Present BMW 740i use?

The 2016-Present BMW 740i features a rear-wheel-drive (RWD) system as standard, with an optional xDrive all-wheel-drive (AWD) system. The xDrive system dynamically distributes torque between the front and rear axles for improved traction and stability.

What is the transmission specification for the BMW 740i?

The BMW 740i is equipped with an 8-speed Steptronic automatic transmission. This transmission is designed for smooth shifting, improved fuel efficiency, and optimized performance, with a torque capacity of up to 500 Nm (369 lb-ft).

What is the engine output and torque delivered to the drivetrain?

The BMW 740i is powered by a 3.0-liter TwinPower Turbo inline-6 engine, producing 335 horsepower (250 kW) and 330 lb-ft (450 Nm) of torque. This power is transmitted through the drivetrain to the rear or all four wheels, depending on the configuration.

How does the xDrive system improve handling in the BMW 740i?

The xDrive system in the BMW 740i uses an electronically controlled multi-plate clutch to distribute torque between the front and rear axles. It can send up to 100% of the torque to either axle, depending on driving conditions, ensuring optimal grip and stability in all weather conditions.

What is the recommended maintenance schedule for the drivetrain components?

BMW recommends inspecting the drivetrain components, including the transmission, driveshaft, and differential, every 30,000 miles (48,000 km). Fluid changes for the transmission and differential should be performed every 60,000 miles (96,000 km) or as specified in the owner's manual.

Can the BMW 740i drivetrain handle towing?

Yes, the BMW 740i with the xDrive system has a towing capacity of up to 4,850 lbs (2,200 kg) when properly equipped. It is essential to use a BMW-approved tow hitch and follow the manufacturer's guidelines for towing to avoid drivetrain damage.

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 Drivetrain Technical Manual

Coming Soon

Official technical documentation detailing the drivetrain components, specifications, and maintenance procedures for the 2016-Present BMW 740i.

xDrive System Overview

Coming Soon

A comprehensive guide to the xDrive all-wheel-drive system, including its operation, benefits, and maintenance requirements.

8-Speed Steptronic Transmission Guide

Coming Soon

Detailed information on the 8-speed Steptronic automatic transmission, including its design, performance characteristics, and service intervals.

BMW Genuine Parts Catalog

Coming Soon

Access the official catalog of genuine BMW parts for the 740i drivetrain, ensuring compatibility and optimal performance.

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