BMW M3 2015-2020

BMW M3 2015-2020 Drivetrain Specifications

Detailed technical specifications and documentation for the 2015-2020 BMW M3 drivetrain system, including engine, transmission, differential, and driveshaft components. Ideal for technicians and enthusiasts.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the drivetrain specifications for the 2015-2020 BMW M3, 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', 'differential', or 'driveshaft'.

Navigate through the drivetrain documentation sections using the table of contents or by scrolling through the document. Each major section is labeled with a title and includes subsections for detailed information.

Key Specifications

Engine Displacement

3.0L

Max Power Output

425 hp

Max Torque

406 lb-ft

Transmission Type

7-speed M DCT

Driveshaft Material

Carbon Fiber

Available Specifications

Engine and Transmission

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

Engine Specifications

3.0L TwinPower Turbo inline-6 engine
Max power output: 425 hp at 5500-7300 rpm
Max torque: 406 lb-ft at 1850-5500 rpm
Compression ratio: 10.2:1
Direct fuel injection system

Transmission System

7-speed M Double Clutch Transmission (M DCT)
Optional 6-speed manual transmission
Shift times as low as 100 milliseconds in DCT mode
Integrated Launch Control for optimized acceleration
Drivelogic system with multiple driving modes

Note: The M DCT transmission is optimized for both performance and efficiency, offering smooth shifts and rapid response times.

Differential and Driveshaft

Information about the differential and driveshaft components, including their roles and specifications

Active M Differential

Electronically controlled multi-plate limited-slip differential
Dynamic torque distribution between rear wheels
Enhances traction and stability during cornering
Works in conjunction with DSC (Dynamic Stability Control)
Precision-engineered for high-performance driving

Driveshaft Configuration

Carbon fiber reinforced driveshaft
Reduces rotational mass for improved responsiveness
Length: 1.2 meters (47.2 inches)
Designed to handle high torque loads up to 406 lb-ft
Integrated with the rear-wheel-drive system

Note: The carbon fiber driveshaft is a lightweight component that enhances the vehicle's performance by reducing unsprung weight.

Suspension and Chassis

Details about the suspension and chassis components that interact with the drivetrain

Adaptive M Suspension

Electronically controlled dampers
Three adjustable modes: Comfort, Sport, and Sport+
Front axle lift system for increased ground clearance
Aluminum-intensive suspension components
Optimized for both track and road performance

Chassis Dynamics

50:50 weight distribution for balanced handling
M-specific chassis tuning for enhanced agility
Stiffened body structure with reinforced mounts
Track-focused geometry for precise cornering
Integrated with the drivetrain for seamless performance

Note: The chassis is engineered to complement the drivetrain, ensuring optimal power delivery and handling.

Cooling and Lubrication

Information about the cooling and lubrication systems that support the drivetrain

Engine Cooling System

High-performance radiator with increased cooling capacity
Auxiliary electric water pump for efficient cooling
Oil cooler integrated into the cooling circuit
Thermostatically controlled for optimal temperature management
Designed to handle extreme track conditions

Transmission Lubrication

Dedicated transmission oil cooler
Synthetic transmission fluid for enhanced durability
Oil pump integrated into the transmission housing
Designed for high-temperature operation
Regular maintenance interval: 60,000 miles

Note: Proper lubrication is critical for maintaining the performance and longevity of the transmission system.

Search Specifications

Search by specification name, value, or description

Component Specifications

Engine

Type: S55B30

Configuration: Inline 6-cylinder

Displacement: 2979 cc

Compression Ratio: 10.2:1

Max Power: 425 hp @ 5500-7300 rpm

Max Torque: 406 lb-ft @ 1850-5500 rpm

Redline: 7600 rpm

Fuel System: Direct Injection

Part Number: 11002242194

Transmission

Type: 7-speed Dual-Clutch Transmission (DCT)

Model: M DCT Drivelogic

Gear Ratios: 1st: 4.806:1
2nd: 2.593:1
3rd: 1.701:1
4th: 1.277:1
5th: 1.000:1
6th: 0.844:1
7th: 0.671:1
Reverse: 3.935:1

Shift Time: 80 ms

Part Number: 28107848877

Differential

Type: Active M Differential

Configuration: Electronically controlled multi-plate limited-slip

Lockup: 0-100% variable

Part Number: 33108659987

Fluid Capacity: 1.2 liters

Fluid Type: BMW SAF-XJ + FM Booster

Driveshaft

Material: Carbon Fiber Reinforced Plastic (CFRP)

Length: 1.5 meters

Diameter: 80 mm

Part Number: 26108659988

Torque Capacity: 600 Nm

Axles

Front: Type: Double-joint spring strut axle
Track Width: 1572 mm
Part Number: 31308659989

Rear: Type: Five-link axle
Track Width: 1602 mm
Part Number: 33308659990

Clutch

Type: Dual Wet Clutch

Diameter: 240 mm

Material: Sintered metal

Part Number: 21508659991

Operating Temperature Range: -40°C to 150°C

Transfer Case

Type: Not applicable (Rear-wheel drive)

Note: The BMW M3 (2015-2020) is rear-wheel drive only.

Cooling System

Engine Coolant Capacity: 10.5 liters

Coolant Type: BMW Antifreeze/Coolant

Part Number: 82141467704

Operating Temperature: 90°C - 110°C

Radiator Material: Aluminum

Lubrication

Engine Oil Capacity: 6.5 liters

Oil Type: BMW TwinPower Turbo LL-01 5W-30

Oil Filter Part Number: 11427837209

Transmission Fluid Capacity: 7.2 liters

Transmission Fluid Type: BMW DCT Fluid

Operational Limits

Max Speed: 250 km/h (electronically limited)

0-60 Mph: 4.1 seconds

Fuel Economy: City: 17 mpg
Highway: 26 mpg
Combined: 20 mpg

Weight Distribution: 52% front, 48% rear

Service Information Service

Detailed service requirements and schedules for the BMW M3 drivetrain

10000

Engine oil and filter change
Inspect brake system
Check coolant level
Inspect tires and adjust pressure

Use only BMW-approved fluids and parts

30000

Replace air filter
Inspect drive belts
Check transmission fluid level
Inspect differential fluid

Replace differential fluid every 30000 miles

60000

Replace spark plugs
Replace fuel filter
Inspect clutch system
Replace transmission fluid

Transmission fluid replacement recommended at 60000 miles

Frequently Asked Questions

Find answers to common questions about torque specifications

What type of drivetrain does the 2015-2020 BMW M3 use?

The 2015-2020 BMW M3 features a rear-wheel-drive (RWD) system with an optional M xDrive all-wheel-drive (AWD) system in later models. The drivetrain includes a 7-speed M Double Clutch Transmission (M DCT) or an optional 6-speed manual transmission.

What is the torque output of the drivetrain in the BMW M3?

The drivetrain delivers a maximum torque of 406 lb-ft (550 Nm) at 1850-5500 rpm, generated by the 3.0-liter BMW M TwinPower Turbo inline-6 engine.

What is the recommended service interval for the drivetrain components?

BMW recommends inspecting the drivetrain components, including the transmission, differential, and driveshaft, every 30,000 miles or 3 years, whichever comes first. Fluid changes for the transmission and differential should be performed every 60,000 miles or 6 years.

Can the drivetrain handle high-performance modifications?

The drivetrain is engineered for high performance but has limitations. Modifications such as increased boost pressure or aftermarket tuning may exceed the factory-rated torque capacity of 406 lb-ft, potentially leading to premature wear or failure. Always consult BMW or a certified technician before making modifications.

What type of differential does the BMW M3 use?

The BMW M3 is equipped with an Active M Differential, which is an electronically controlled limited-slip differential. It optimizes traction and stability by varying torque distribution between the rear wheels based on driving conditions.

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 M3 Drivetrain Technical Manual

Coming Soon

Official technical documentation covering the drivetrain system, including specifications, maintenance procedures, and troubleshooting.

M TwinPower Turbo Engine Overview

Coming Soon

Detailed guide on the 3.0-liter inline-6 engine, including its integration with the drivetrain and performance characteristics.

Active M Differential Operation Guide

Coming Soon

Explains the functionality and benefits of the Active M Differential, including real-world driving scenarios and maintenance tips.

BMW M3 Transmission Fluid Replacement Procedure

Coming Soon

Step-by-step instructions for replacing transmission fluid, including recommended fluid types and safety precautions.

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