BMW M4 2021-present

BMW M4 2021-present Drivetrain Specifications

Detailed technical specifications and documentation for the 2021-Present BMW M4 drivetrain system, including engine, transmission, differential, and performance metrics.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the drivetrain specifications for the 2021-Present BMW M4, 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 by selecting the desired section from the table of contents or using the sidebar menu for quick access to subsections.

Key Specifications

Engine Displacement

3.0L

Max Power Output

473 hp (353 kW)

Transmission Type

8-Speed M Steptronic

0-60 mph Time

3.4 seconds

Fuel Tank Capacity

15.6 gallons (59 L)

Available Specifications

Engine and Transmission

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

S58 Twin-Turbocharged Engine

3.0L inline-6 cylinder engine
Max power output: 473 hp (353 kW) at 6,250 rpm
Max torque: 406 lb-ft (550 Nm) at 2,650-6,130 rpm
Compression ratio: 9.3:1
Direct injection with high-precision injection system

8-Speed M Steptronic Transmission

8-speed automatic transmission with Drivelogic
Gear ratios optimized for performance and efficiency
Integrated launch control system
Shift times reduced to 150 milliseconds in Sport mode
Adaptive shift mapping based on driving conditions

Note: The transmission features a torque converter with lock-up clutch for improved efficiency.

Driveshaft and Differential

Technical details about the driveshaft and differential system, including materials and performance characteristics

Carbon Fiber Driveshaft

Lightweight carbon fiber construction
Reduced rotational mass for improved responsiveness
Length: 1,200 mm (47.2 in)
Designed to handle up to 700 Nm of torque
Enhanced durability and vibration damping

Active M Differential

Electronically controlled multi-plate limited-slip differential
Torque distribution: 0-100% between rear wheels
Response time: <100 milliseconds
Integrated with DSC (Dynamic Stability Control)
Optimized for high-performance driving and traction

Note: The differential adjusts torque distribution based on wheel slip and driving conditions.

Suspension and Chassis

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

Adaptive M Suspension

Electronically controlled dampers
Three modes: Comfort, Sport, and Sport+
Spring rates optimized for performance and comfort
Integrated with DSC and M Differential
Ride height: 140 mm (5.5 in) front, 145 mm (5.7 in) rear

M-Specific Chassis Tuning

Aluminum-intensive front and rear axles
Increased camber for improved cornering stability
Wheelbase: 2,857 mm (112.5 in)
Track width: 1,620 mm (63.8 in) front, 1,610 mm (63.4 in) rear
Stiffened subframe for enhanced rigidity

Note: The chassis is designed to complement the drivetrain for optimal performance.

Performance and Efficiency

Performance metrics and efficiency details related to the drivetrain

Acceleration and Top Speed

0-60 mph (0-97 km/h): 3.8 seconds (manual), 3.4 seconds (automatic)
Top speed: 155 mph (250 km/h) standard, 180 mph (290 km/h) with M Driver's Package
Quarter-mile time: 11.8 seconds
Braking distance (60-0 mph): 100 ft (30.5 m)
Drag coefficient: 0.34 Cd

Fuel Efficiency

City fuel economy: 16 mpg (14.7 L/100 km)
Highway fuel economy: 23 mpg (10.2 L/100 km)
Combined fuel economy: 19 mpg (12.4 L/100 km)
CO2 emissions: 227 g/km
Fuel tank capacity: 15.6 gallons (59 L)

Note: Fuel efficiency varies based on driving conditions and transmission type.

Search Specifications

Search by specification name, value, or description

Component Specifications

Transmission

Type: 8-speed M Steptronic automatic with Drivelogic

Gear Ratios: 1st: 5.000:1
2nd: 3.200:1
3rd: 2.143:1
4th: 1.720:1
5th: 1.313:1
6th: 1.000:1
7th: 0.823:1
8th: 0.640:1
Reverse: 3.713:1

Part Number: 8HP76X

Fluid Capacity: 9.5 liters

Fluid Type: BMW ATF 3+

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

Differential

Type: Active M Differential

Ratio: 3.15:1

Part Number: 33108659987

Fluid Capacity: 1.2 liters

Fluid Type: BMW SAF-XJ

Locking Mechanism: Electronically controlled multi-plate clutch

Transfer Case

Type: Not applicable (Rear-wheel drive configuration)

Note: The 2021-Present BMW M4 does not feature a transfer case as it is rear-wheel drive.

Driveshaft

Material: Carbon fiber reinforced polymer (CFRP)

Length: 1.5 meters

Part Number: 26108659988

Torque Capacity: 800 Nm

Operational Speed Limit: 8000 rpm

Axles

Front: Not applicable (Rear-wheel drive configuration)

Rear: Type: Semi-floating
Part Number: 33208659989
Spline Count: 32
Torque Capacity: 700 Nm
Operational Speed Limit: 7500 rpm

Clutch

Type: Not applicable (Automatic transmission)

Note: The 2021-Present BMW M4 with the 8-speed M Steptronic transmission does not use a traditional clutch.

Engine Output

Power: 473 kW (635 hp) @ 6250 rpm

Torque: 750 Nm @ 2750-5500 rpm

Redline: 7200 rpm

Compression Ratio: 9.3:1

Fuel Type: Premium unleaded (95 RON minimum)

Cooling System

Type: Liquid-cooled

Coolant Capacity: 12 liters

Coolant Type: BMW Antifreeze/Coolant

Operational Temperature Range: -40°C to 120°C

Part Number: 82141467704

Lubrication

Engine Oil Capacity: 7.5 liters

Engine Oil Type: BMW TwinPower Turbo 0W-30

Transmission Fluid Capacity: 9.5 liters

Transmission Fluid Type: BMW ATF 3+

Differential Fluid Capacity: 1.2 liters

Differential Fluid Type: BMW SAF-XJ

Diagnostics

Error Codes

P0700 - Transmission Control System (MIL Request)
P0715 - Input/Turbine Speed Sensor Circuit Malfunction
P0720 - Output Speed Sensor Circuit Malfunction

Diagnostic Tool: BMW ISTA+

Diagnostic Port Location: Under dashboard, driver's side

Service Information Service

Detailed service requirements and schedules for the 2021-Present BMW M4 drivetrain

10000

Engine oil and filter change
Transmission fluid check
Differential fluid check
Driveshaft inspection
Axle inspection

Use only BMW-approved fluids and parts.

30000

Transmission fluid replacement
Differential fluid replacement
Driveshaft and axle boot inspection
Coolant system flush

Inspect for leaks and wear on drivetrain components.

60000

Full drivetrain inspection
Replace all drivetrain fluids
Check and replace worn drivetrain components
Diagnostic system scan

Perform a comprehensive diagnostic scan to ensure all systems are functioning correctly.

Frequently Asked Questions

Find answers to common questions about torque specifications

What type of drivetrain does the 2021-Present BMW M4 use?

The 2021-Present BMW M4 features an M xDrive all-wheel-drive system, which can be configured to operate in rear-wheel-drive mode for a more traditional driving experience. The system includes an Active M Differential for optimized torque distribution.

What is the torque capacity of the M4's drivetrain?

The drivetrain is designed to handle up to 650 Nm (479 lb-ft) of torque, which is the maximum torque output of the S58 twin-turbocharged 3.0-liter inline-6 engine used in the M4 Competition models.

How does the Active M Differential improve performance?

The Active M Differential is an electronically controlled limited-slip differential that varies lock-up between 0-100% based on driving conditions. It enhances traction, stability, and agility by optimizing torque distribution between the rear wheels.

What is the gear ratio of the M4's drivetrain?

The M4's drivetrain features a final drive ratio of 3.15:1 for models equipped with the 8-speed M Steptronic automatic transmission. This ratio is optimized for both performance and efficiency.

Can the M4's drivetrain be serviced by non-BMW technicians?

While basic maintenance can be performed by qualified technicians, complex repairs and calibrations, such as those involving the Active M Differential or M xDrive system, should only be performed by BMW-certified professionals to ensure proper functionality and warranty compliance.

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 M4 Drivetrain Technical Overview

Coming Soon

Detailed technical documentation covering the M xDrive system, Active M Differential, and torque distribution mechanisms.

M4 Drivetrain Maintenance Guide

Coming Soon

Step-by-step guide for routine maintenance procedures, including fluid changes and differential inspections.

M xDrive System Calibration Manual

Coming Soon

Official BMW manual for calibrating and troubleshooting the M xDrive all-wheel-drive system.

Active M Differential Service Bulletin

Coming Soon

Latest service bulletins and updates for the Active M Differential, including common issues and repair procedures.

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