BMW 745i 2002-2009 Drivetrain Specifications
BMW 745i 2002-2009

BMW 745i 2002-2009 Drivetrain Specifications

Comprehensive technical documentation for the drivetrain system of the 2002-2009 BMW 745I, including detailed specifications, maintenance guidelines, and component-specific information.

Updated

Overview Specifications

Comprehensive description of the drivetrain specifications for the 2002-2009 BMW 745I, including key features, measurements, and technical details

How to Use

Instructions for using search to find specific drivetrain specifications

Instructions for navigating through the drivetrain documentation sections

Key Specifications

Engine Displacement

4.4L

Horsepower

333 hp

Torque

355 lb-ft

Transmission Speed

6-speed

Axle Length

1.8 meters

Available Specifications

Engine Specifications

Detailed description of the engine components and specifications

Engine Type and Configuration
  • V8 engine configuration
  • 4.4L displacement
  • Natural aspiration system
  • BMW proprietary engine design
Performance Metrics
  • 333 hp output at 5500 rpm
  • 355 lb-ft torque at 3500 rpm
  • Compression ratio of 10.5:1
  • Fuel efficiency of 15 mpg

Note: Performance metrics are based on standard conditions

Transmission System

Comprehensive details about the transmission system

Transmission Type
  • Automatic transmission system
  • 6-speed gearbox
  • Electronic shift control
  • Integrated torque converter
Operational Specifications
  • Shift time of 0.2 seconds
  • Maximum torque capacity of 400 lb-ft
  • Gear ratio range from 1.5 to 4.2
  • Integrated cooling system

Note: Operational specs ensure optimal performance under load

Drive Axle and Differential

Details about the drive axle and differential system

Axle Configuration
  • Rear axle drive system
  • Axle length of 1.8 meters
  • Weight capacity of 1200 kg
  • Integrated lubrication system
Differential System
  • Limited slip differential
  • Torque distribution ratio of 60:40
  • Maximum differential torque of 300 lb-ft
  • Electronic differential control

Note: Differential system enhances stability and traction

Suspension and Alignment

Technical details about the suspension and alignment system

Suspension System
  • Independent suspension system
  • Spring rate of 150 lb/in
  • Damping coefficient of 0.8
  • Integrated shock absorbers
Alignment Specifications
  • Camber angle of -1.5 degrees
  • Toe-in angle of 0.2 degrees
  • Alignment tolerance of ±0.1 degrees
  • Electronic alignment control

Note: Alignment specs ensure optimal handling and stability

Component Specifications

Engine

Type
N62B44A V8
Displacement
4.4 liters
Power Output
325 hp @ 6100 rpm
Torque Output
330 lb-ft @ 3600 rpm
Compression Ratio
10.5:1
Fuel System
Direct Injection
Part Number
11007831716

Transmission

Type
6-speed automatic
Model
GM 6L50
Gear Ratios
1st: 4.06:1
2nd: 2.37:1
3rd: 1.55:1
4th: 1.16:1
5th: 0.85:1
6th: 0.67:1
Reverse: 3.20:1
Part Number
24007522494

Drive Type

Configuration
Rear-wheel drive (RWD)
Differential Type
Limited-slip differential
Final Drive Ratio
3.64:1
Part Number
33107539281

Propeller Shaft

Material
Aluminum
Length
78.7 inches
Diameter
3.5 inches
Part Number
26107538864

Suspension

Front
Type: Double wishbone
Spring Rate: 180 lb/in
Shock ABSorber Type: Gas-charged
Part Number: 31306777765
Rear
Type: Multi-link
Spring Rate: 200 lb/in
Shock ABSorber Type: Gas-charged
Part Number: 33526777766

Brakes

Front
Type: Ventilated disc
Diameter: 13.7 inches
Thickness: 1.1 inches
Part Number: 34116777767
Rear
Type: Ventilated disc
Diameter: 13.2 inches
Thickness: 0.9 inches
Part Number: 34216777768

Cooling System

Radiator Type
Cross-flow
Capacity
12.7 quarts
Thermostat Opening Temperature
88°C
Part Number
17117538865

Exhaust System

Type
Dual exhaust
Material
Stainless steel
Catalytic Converters
2
Part Number
18307538866

Fuel System

Fuel Tank Capacity
21.7 gallons
Fuel Pump Pressure
58 psi
Fuel Filter Part Number
16146777769

Electrical System

Battery Type
AGM
Battery Capacity
90 Ah
Alternator Output
150 A
Part Number
61217538867

Service Information Service

Detailed service requirements and schedules

10000
12
  • Oil change
  • Oil filter replacement
  • Inspect brake system
  • Check tire pressure and condition

Use BMW-approved oil and parts

30000
36
  • Replace air filter
  • Replace cabin air filter
  • Inspect suspension components
  • Check and top off all fluids

Follow BMW service guidelines

60000
72
  • Replace spark plugs
  • Replace fuel filter
  • Inspect and replace drive belts if necessary
  • Check and replace brake pads and rotors if needed

Ensure all parts meet BMW specifications

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What is the transmission type used in the 2002-2009 BMW 745i?

The 2002-2009 BMW 745i utilizes a 6-speed automatic transmission, specifically the ZF 6HP26, which is designed for high torque applications and features advanced electronic control systems for smooth shifting.

Q2

What is the engine torque output for the BMW 745i drivetrain?

The BMW 745i's drivetrain is paired with a V8 engine that delivers a maximum torque of 450 Nm at 3500 rpm, ensuring robust performance and efficient power delivery.

Q3

How does the BMW 745i drivetrain handle power distribution?

The drivetrain employs a sophisticated differential system that ensures optimal power distribution to the rear wheels, maintaining stability and traction under various driving conditions.

Q4

What are the maintenance intervals for the BMW 745i drivetrain components?

BMW recommends servicing the drivetrain components every 30,000 miles or 2 years, whichever comes first. This includes checking the transmission fluid, differential lubrication, and drive shaft integrity.

Q5

Can the BMW 745i drivetrain be upgraded for higher performance?

While the drivetrain is optimized for the vehicle's specifications, certain upgrades like enhanced torque converters or differential gears can be installed, but these modifications should be performed by certified BMW technicians to maintain vehicle integrity.

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 745i Drivetrain Maintenance Guide

Coming Soon

This guide provides detailed instructions on maintaining the drivetrain components, including transmission, differential, and drive shaft care.

ZF 6HP26 Transmission Technical Specifications

Coming Soon

Detailed technical specifications and operational guidelines for the ZF 6HP26 transmission used in the BMW 745i.

BMW 745i Drivetrain Troubleshooting Manual

Coming Soon

A comprehensive troubleshooting manual for common drivetrain issues in the BMW 745i, including diagnostic procedures and solutions.

Official BMW 745i Service Documentation

Coming Soon

Access the official BMW service documentation for the 745i, covering all aspects of drivetrain service and repair.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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

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