BMW M2 2016-2021

BMW M2 2016-2021 ZF 8HP Transmission Specifications

Comprehensive technical specifications for the ZF-8HP automatic transmission system used in the 2016-2021 BMW M2. This document covers gear ratios, torque capacity, fluid specifications, shift logic, and diagnostic codes specific to the ZF-8HP transmission in the BMW M2.

Updated Oct 24, 2023

Overview Specifications

Comprehensive description of the ZF-8HP transmission specifications for the 2016-2021 BMW M2, including key features, measurements, and technical details.

How to Use

Use the search function to locate specific ZF-8HP transmission specifications by entering keywords such as 'torque capacity', 'gear ratios', or 'fluid capacity'.

Navigate through the documentation sections using the table of contents or by scrolling through the major sections and subsections listed below.

Key Specifications

Maximum Torque Capacity

500 Nm (369 lb-ft)

Gear Ratios

1st: 4.714, 8th: 0.667

Fluid Capacity

9.5 liters (10.0 quarts)

Dry Weight

87 kg (192 lbs)

Length

720 mm (28.3 in)

Available Specifications

Transmission Design and Architecture

Details about the design, architecture, and key components of the ZF-8HP transmission.

Transmission Type and Layout

8-speed automatic transmission
Longitudinal mounting configuration
Modular design with integrated torque converter
Compact and lightweight construction

Key Components

Four planetary gear sets
Five multi-plate clutches
Two brake bands
Electro-hydraulic control unit

Note: The electro-hydraulic control unit ensures precise gear shifts and optimal performance.

Performance Specifications

Technical specifications related to the performance and capabilities of the ZF-8HP transmission.

Torque Capacity

Maximum torque capacity: 500 Nm (369 lb-ft)
Designed for high-performance applications
Supports BMW M2's turbocharged inline-6 engine

Gear Ratios

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

Note: Wide gear ratio spread enhances both acceleration and fuel efficiency.

Fluid and Maintenance Specifications

Information about transmission fluid requirements and maintenance intervals.

Fluid Capacity

Total fluid capacity: 9.5 liters (10.0 quarts)
Fluid type: ZF Lifeguard 8
Fluid change interval: 80,000 km (50,000 miles)

Maintenance Requirements

Regular fluid and filter changes recommended
Seal inspections during service intervals
Diagnostic checks for electro-hydraulic system

Note: Use only ZF-approved fluids to ensure optimal performance and longevity.

Dimensions and Weight

Physical dimensions and weight specifications of the ZF-8HP transmission.

Dimensions

Length: 720 mm (28.3 in)
Width: 520 mm (20.5 in)
Height: 380 mm (15.0 in)

Weight

Dry weight: 87 kg (192 lbs)
Weight with fluid: 95 kg (209 lbs)

Note: Lightweight design contributes to improved vehicle dynamics.

Search Specifications

Search by specification name, value, or description

Transmission Specifications

General information

Transmission Type: 8-speed automatic

Manufacturer: ZF Friedrichshafen AG

Model: 8HP50

Part Number: 8HP50X

Compatibility: 2016-2021 BMW M2

Weight: 87 kg (191.8 lbs)

Dimensions

Length: 720 mm (28.35 in)

Width: 550 mm (21.65 in)

Height: 380 mm (14.96 in)

input Shaft Diameter: 28 mm (1.10 in)

Output Shaft Diameter: 32 mm (1.26 in)

Performance

Maximum Torque: 500 Nm (368.8 lb-ft)

Maximum input Speed: 7000 rpm

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

Shift Time: 200 ms

Fluid Specifications

Fluid Type: ZF Lifeguard 8

Fluid Capacity: 9.5 liters (10.04 quarts)

Fluid Change interval: 60,000 miles or 48 months

Fluid Temperature Range: -40°C to 150°C (-40°F to 302°F)

Operational Parameters

Maximum Operating Temperature: 120°C (248°F)

Minimum Operating Temperature: -30°C (-22°F)

Maximum Allowable Pressure: 20 bar (290 psi)

Minimum Allowable Pressure: 1.5 bar (21.8 psi)

Maintenance

Filter Part Number: 24118616027

Filter Change interval: 60,000 miles or 48 months

Seal Kit Part Number: 24118616028

Gasket Part Number: 24118616029

Torque Specifications: Pan Bolts: 10 Nm (7.4 lb-ft)
Filter Bolts: 8 Nm (5.9 lb-ft)
Drain Plug: 25 Nm (18.4 lb-ft)

Diagnostics

Fault Codes

P0700 - Transmission Control System Malfunction
P0715 - Input/Turbine Speed Sensor Circuit Malfunction
P0720 - Output Speed Sensor Circuit Malfunction
P0730 - Incorrect Gear Ratio

Diagnostic Tool: BMW ISTA

Diagnostic interface: OBD-II

Diagnostic Procedures

Check transmission fluid level and condition
Inspect wiring and connectors
Perform adaptive reset procedure

Safety information

Warning: Do not operate the vehicle if the transmission fluid is below the minimum level

Caution: Ensure the transmission is at operating temperature before performing fluid checks

Note: Use only ZF Lifeguard 8 fluid to avoid damage to the transmission

Related Components

Mechatronic Unit: Part Number: 24118616030
Description: Integrated transmission control unit
Location: Inside the transmission housing

Torque Converter: Part Number: 24118616031
Description: Hydraulic torque converter
Lockup Clutch Engagement Speed: 1500 rpm

Cooling System: Part Number: 24118616032
Description: Transmission oil cooler
Cooling Capacity: 5 kW

Tolerances

Gear Mesh Tolerance: 0.05 mm (0.002 in)

Bearing Clearance: 0.02 mm (0.0008 in)

Shaft End Play: 0.1 mm (0.004 in)

Clutch Pack Clearance: 0.5 mm (0.02 in)

Service Information Service

Detailed service requirements and schedules for the ZF 8HP transmission

30,000

Inspect transmission fluid level
Check for leaks
Inspect transmission mounts

Perform visual inspection and top off fluid if necessary

60,000

Replace transmission fluid
Replace transmission filter
Perform adaptive reset procedure

Use only ZF Lifeguard 8 fluid for replacement

100,000

Inspect mechatronic unit
Check torque converter operation
Inspect cooling system

Perform detailed diagnostic check if any issues are detected

Common Questions

Find answers to common questions about torque specifications

What is the torque capacity of the ZF 8HP transmission in the 2016-2021 BMW M2?

The ZF 8HP transmission used in the 2016-2021 BMW M2 has a torque capacity of up to 500 Nm (369 lb-ft). This ensures optimal performance and durability for the high-output N55 and S55 engines.

What are the gear ratios for the ZF 8HP transmission in the BMW M2?

The ZF 8HP transmission in the BMW M2 features the following gear ratios: 1st gear - 4.714, 2nd gear - 3.143, 3rd gear - 2.106, 4th gear - 1.667, 5th gear - 1.285, 6th gear - 1.000, 7th gear - 0.839, 8th gear - 0.667. The reverse gear ratio is 3.317.

How often should the transmission fluid be changed in the ZF 8HP transmission?

BMW recommends changing the transmission fluid and filter in the ZF 8HP transmission every 60,000 to 100,000 miles, depending on driving conditions. Severe driving conditions, such as frequent high-performance use, may require more frequent service intervals.

What type of transmission fluid is required for the ZF 8HP transmission?

The ZF 8HP transmission requires ZF LifeguardFluid 8, which is a specific low-friction, synthetic transmission fluid designed for optimal performance and longevity. Using the correct fluid is critical to ensure proper operation and avoid damage.

Can the ZF 8HP transmission be tuned for improved performance?

Yes, the ZF 8HP transmission can be tuned to enhance shift speeds, torque handling, and overall performance. However, any modifications should be performed by a qualified professional to avoid voiding the warranty or causing damage to the transmission.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

ZF 8HP Transmission Technical Overview

Coming Soon

A detailed technical overview of the ZF 8HP transmission, including its design, features, and performance specifications.

BMW M2 ZF 8HP Transmission Service Manual

Coming Soon

The official service manual for the ZF 8HP transmission in the BMW M2, covering maintenance, repair, and diagnostic procedures.

ZF LifeguardFluid 8 Product Information

Coming Soon

Information about the recommended transmission fluid for the ZF 8HP transmission, including specifications and usage guidelines.

BMW M2 Performance Tuning Guide

Coming Soon

A guide to performance tuning options for the BMW M2, including transmission tuning for the ZF 8HP.

Legal Disclaimer

Important information about using this content

Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.

General Information

The information provided on this website is for general informational purposes only. While we strive to maintain accuracy in our content, all specifications, procedures, and technical information should be verified against your vehicle's official service manual or with the manufacturer directly.

Warranty & Liability

The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.

We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.

Technical Information

All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
Vehicle specifications and procedures may vary by model year, trim level, and region.
Always follow the manufacturer's recommended procedures and safety precautions.
Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
If you're unsure about any procedure, consult a qualified professional mechanic.

Intellectual Property

All content, including text, images, and specifications, is protected by copyright and other intellectual property laws. Any unauthorized use or reproduction is prohibited.

About the Author

Expert automotive knowledge and experience

ASE

Alan Montanye

Automotive Technical Specialist

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

Facebook Contact

15+ Years

Experience

500+ Guides

Guides

50+ Makes

Vehicles

1000+ Solutions

Solutions

Diagnostic

Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.

Repair

Expert in both traditional mechanical repairs and modern vehicle systems.

Additional Expertise

Documentation

Created over 500 detailed repair guides and technical documents.

Training

Conducted technical training sessions and contributed to repair databases.

Certifications & Research

Certifications

ASE Master Technician Certification
Advanced Diagnostic Specialist
Hybrid/Electric Vehicle Systems
Performance Tuning Expert

Research & Community

Actively researches emerging technologies and contributes to automotive forums.