BMW 340i 2005-2011

BMW 340i 2005-2011 Drivetrain Specifications

Detailed technical specifications and maintenance guide for the drivetrain system of the 2005-2011 BMW 340I. Includes engine, transmission, differential, and driveshaft details.

Updated Oct 14, 2023

Overview Specifications

Comprehensive description of the drivetrain specifications for the 2005-2011 BMW 340I, 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 type', 'final drive ratio', or 'torque specifications'.

Navigate through the drivetrain documentation sections using the table of contents. Each major section is divided into subsections for detailed technical information.

Key Specifications

Transmission Type

6-speed manual / 6-speed automatic

Final Drive Ratio

3.08:1 (standard)

Maximum Torque

300 Nm @ 2,500-4,000 rpm

Power Output

306 hp @ 5,800 rpm

Top Speed

250 km/h (limited)

Available Specifications

Transmission System

Details about the transmission system, including type, gear ratios, and technical specifications

Transmission Type

6-speed manual transmission (standard)
Optional 6-speed automatic transmission with Steptronic
Gear ratios optimized for performance and fuel efficiency
Dual-mass flywheel for reduced vibrations

Gear Ratios

1st gear: 4.35:1
2nd gear: 2.50:1
3rd gear: 1.66:1
4th gear: 1.23:1
5th gear: 1.00:1
6th gear: 0.85:1
Reverse gear: 3.93:1

Note: Gear ratios may vary slightly depending on the transmission model.

Differential and Final Drive

Information about the differential system and final drive specifications

Differential Type

Limited-slip differential (LSD) for improved traction
Electronically controlled differential lock
Differential oil capacity: 1.2 liters
Differential oil type: SAE 75W-90

Final Drive Ratio

Standard final drive ratio: 3.08:1
Optional sport package final drive ratio: 3.46:1
Axle shaft diameter: 32 mm
Differential housing material: Aluminum alloy

Note: The final drive ratio affects acceleration and top speed.

Driveshaft and Axles

Technical details about the driveshaft and axle components

Driveshaft Specifications

Two-piece driveshaft with center support bearing
Driveshaft material: High-strength steel
Driveshaft diameter: 80 mm
Maximum torque capacity: 450 Nm

Axle Specifications

Front axle: Independent suspension with double wishbones
Rear axle: Multi-link independent suspension
Axle shaft length: 1,200 mm (front), 1,150 mm (rear)
Axle shaft material: Forged steel

Note: Axle shafts are designed to handle high torque loads.

Torque and Power Delivery

Details about torque specifications and power delivery mechanisms

Engine Torque Specifications

Maximum torque: 300 Nm @ 2,500-4,000 rpm
Torque distribution: 50:50 front to rear
Torque converter lock-up clutch (automatic transmission)
Torque tube design for reduced drivetrain flex

Power Delivery

Power output: 306 hp @ 5,800 rpm
Power-to-weight ratio: 6.5 kg/hp
Acceleration (0-100 km/h): 5.6 seconds
Top speed: 250 km/h (electronically limited)

Note: Performance figures may vary based on transmission and optional packages.

Search Specifications

Search by specification name, value, or description

Component Specifications

Engine

Type: Inline 6-cylinder

Displacement: 3.0L

Compression Ratio: 10.7:1

Max Power: 306 hp @ 5800 rpm

Max Torque: 295 lb-ft @ 1200-5000 rpm

Fuel System: Direct Injection

Part Number: 11 00 7 566 123

Transmission

Type: 6-speed manual / 6-speed automatic

Gear Ratios: 1st: 4.35:1
2nd: 2.50:1
3rd: 1.66:1
4th: 1.23:1
5th: 1.00:1
6th: 0.85:1
Reverse: 3.93:1

Final Drive Ratio: 3.08:1

Part Number Manual: 23 00 7 566 456

Part Number Automatic: 24 00 7 566 789

Driveshaft

Material: Aluminum

Length: 72.5 inches

Diameter: 3.5 inches

Part Number: 26 11 7 566 321

Differential

Type: Limited Slip Differential

Ratio: 3.08:1

Oil Capacity: 1.5 quarts

Oil Type: SAE 75W-90

Part Number: 33 10 7 566 654

Axles

Front Axle: Type: Independent, Double Wishbone
Track Width: 62.2 inches
Part Number: 31 20 7 566 987

Rear Axle: Type: Independent, Multi-Link
Track Width: 62.6 inches
Part Number: 31 21 7 566 988

Clutch

Type: Single Disc Dry Clutch

Diameter: 10.5 inches

Material: Organic

Part Number: 21 22 7 566 555

Transfer Case

Type: Not Applicable (RWD)

Part Number: N/A

Propeller Shaft

Material: Steel

Length: 45.3 inches

Diameter: 2.8 inches

Part Number: 26 12 7 566 222

Suspension

Front: Type: Double Wishbone
Spring Rate: 180 lb/in
Shock ABSorber Type: Gas-filled
Part Number: 31 30 7 566 333

Rear: Type: Multi-Link
Spring Rate: 160 lb/in
Shock ABSorber Type: Gas-filled
Part Number: 31 31 7 566 334

Brakes

Front: Type: Ventilated Disc
Diameter: 13.7 inches
Thickness: 1.1 inches
Part Number: 34 11 7 566 777

Rear: Type: Ventilated Disc
Diameter: 13.2 inches
Thickness: 0.9 inches
Part Number: 34 12 7 566 778

Service Information Service

Detailed service requirements and schedules for the drivetrain system

10,000

Inspect and replace engine oil and filter
Check transmission fluid level
Inspect driveshaft and propeller shaft for wear
Check differential oil level

Use only BMW-approved fluids and lubricants

30,000

Replace differential oil
Inspect and replace clutch if necessary
Check suspension components for wear
Inspect brake system and replace pads if necessary

Ensure all bolts and fasteners are torqued to specification

60,000

Replace transmission fluid
Inspect and replace driveshaft and propeller shaft if necessary
Check and replace suspension bushings if necessary
Inspect and replace brake discs if necessary

Perform a full drivetrain alignment check

Frequently Asked Questions

Find answers to common questions about torque specifications

What type of drivetrain does the 2005-2011 BMW 340i use?

The 2005-2011 BMW 340i is equipped with a rear-wheel-drive (RWD) system. It features a longitudinally mounted engine connected to a 6-speed manual or optional 6-speed automatic transmission (ZF 6HP19), delivering power to the rear wheels.

What is the torque rating of the drivetrain components?

The drivetrain components, including the driveshaft and differential, are designed to handle up to 400 Nm (295 lb-ft) of torque. The differential ratio is 3.15:1 for standard models, ensuring optimal power delivery and performance.

How often should the differential fluid be replaced?

BMW recommends replacing the differential fluid every 60,000 miles (96,000 km) or every 4 years, whichever comes first. Use only BMW-approved synthetic gear oil (SAE 75W-90) to ensure proper lubrication and longevity of the differential.

What are the signs of a failing driveshaft?

Common signs include vibrations during acceleration, clunking noises when shifting gears, and excessive play in the drivetrain. If these symptoms occur, inspect the driveshaft for worn universal joints (U-joints) or center support bearing and replace as necessary.

Can the drivetrain handle performance upgrades?

The stock drivetrain can handle moderate performance upgrades, such as a remapped ECU or intake/exhaust modifications. However, for significant power increases (e.g., turbocharging), upgrading the driveshaft, differential, and transmission components is recommended to prevent failure.

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 Drivetrain Maintenance Guide

Coming Soon

A comprehensive guide to maintaining and servicing the drivetrain components, including lubrication, inspection, and replacement intervals.

Differential Fluid Replacement Procedure

Coming Soon

Step-by-step instructions for replacing the differential fluid, including torque specifications and recommended fluids.

Driveshaft Inspection and Repair

Coming Soon

Detailed instructions for inspecting and repairing the driveshaft, including U-joint replacement and balancing procedures.

BMW Genuine Parts Catalog

Coming Soon

Access the official BMW parts catalog to find genuine drivetrain components, including part numbers and pricing.

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