BMW 428i 2014-2016 ZF 8HP Transmission Specifications
Detailed technical specifications for the ZF 8HP automatic transmission used in the 2014-2016 BMW 428i. This document covers gear ratios, torque capacity, fluid specifications, shift logic, and diagnostic codes specific to the ZF 8HP transmission system.
Overview Specifications
Comprehensive description of the zf-8hp-transmission specifications for the 2014-2016 bmw 428I, including key features, measurements, and technical details
How to Use
Use the search bar to find 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 listed below.
Key Specifications
Transmission Type
8-speed automatic
Torque Capacity
500 Nm (368.8 lb-ft)
Weight
87 kg (191.8 lbs)
Fluid Capacity
9.5 liters (10 quarts)
Shift Time
200 milliseconds
Available Specifications
Transmission Design and Features
Detailed overview of the zf-8hp-transmission design, including its architecture, key components, and innovative features.
Transmission Design and Features
Detailed overview of the zf-8hp-transmission design, including its architecture, key components, and innovative features.
Transmission Architecture
- 8-speed automatic transmission with planetary gear sets
- Compact and lightweight design, weighing approximately 87 kg (191.8 lbs)
- Integrated torque converter with lock-up clutch
- Electronically controlled hydraulic system for precise shifting
Key Features
- Adaptive shift strategy for optimized performance and fuel efficiency
- Support for start-stop functionality
- Compatibility with rear-wheel drive (RWD) and all-wheel drive (AWD) configurations
- Seamless integration with BMW's Driving Dynamics Control system
Note: The zf-8hp-transmission is designed to handle up to 500 Nm (368.8 lb-ft) of torque.
Performance Specifications
Technical details about the transmission's performance, including gear ratios, shift times, and torque capacity.
Performance Specifications
Technical details about the transmission's performance, including gear ratios, shift times, and torque capacity.
Gear Ratios
- 1st gear: 5.000:1
- 2nd gear: 3.200:1
- 3rd gear: 2.143:1
- 4th gear: 1.720:1
- 5th gear: 1.314:1
- 6th gear: 1.000:1
- 7th gear: 0.822:1
- 8th gear: 0.640:1
- Reverse gear: 4.917:1
Shift Times and Torque Capacity
- Shift times as low as 200 milliseconds
- Maximum torque capacity of 500 Nm (368.8 lb-ft)
- Optimized for high-performance driving and smooth cruising
- Supports manual shifting via paddle shifters
Note: The transmission's adaptive shift strategy adjusts based on driving style and road conditions.
Maintenance and Fluid Specifications
Guidelines for maintaining the zf-8hp-transmission, including fluid type, capacity, and service intervals.
Maintenance and Fluid Specifications
Guidelines for maintaining the zf-8hp-transmission, including fluid type, capacity, and service intervals.
Transmission Fluid
- Recommended fluid: ZF Lifeguard 8
- Fluid capacity: Approximately 9.5 liters (10 quarts)
- Fluid change interval: Every 80,000 km (50,000 miles) or as specified by BMW
- Fluid operating temperature range: -40°C to 150°C (-40°F to 302°F)
Service and Maintenance
- Regular inspection of transmission mounts and seals
- Diagnostic checks using BMW's ISTA system
- Replacement of transmission filter during fluid changes
- Ensure proper fluid level to avoid damage
Note: Use only ZF-approved fluids to maintain warranty and performance.
Search Specifications
Search by specification name, value, or description
Type to search through torque specifications. Results will appear below as you type.
Transmission Specifications
General information
- Transmission Type
- 8-speed automatic
- Manufacturer
- ZF Friedrichshafen AG
- Model Code
- 8HP45
- Part Number
- 24108648809
- Compatibility
- 2014-2016 BMW 428I
- 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 Length
- 120 mm (4.72 in)
- Output Shaft Length
- 150 mm (5.91 in)
Fluid Specifications
- Fluid Type
- ZF Lifeguard 8
- Fluid Capacity
- 9.5 liters (10.04 quarts)
- Fluid Change interval
- 60,000 miles or 60 months
- Fluid Temperature Range
- -40°C to 150°C (-40°F to 302°F)
Gear Ratios
- 1st Gear
- 4.714:1
- 2nd Gear
- 3.143:1
- 3rd Gear
- 2.106:1
- 4th Gear
- 1.667:1
- 5th Gear
- 1.285:1
- 6th Gear
- 1.000:1
- 7th Gear
- 0.839:1
- 8th Gear
- 0.667:1
- Reverse Gear
- 3.317:1
Torque Capacity
- Maximum input Torque
- 450 Nm (331.9 lb-ft)
- Maximum Output Torque
- 600 Nm (442.5 lb-ft)
- Torque Converter Lockup Speed
- 1,500 rpm
Operational Parameters
- Maximum Engine Speed
- 7,000 rpm
- Shift Response Time
- 200 milliseconds
- Operating Temperature Range
- -40°C to 150°C (-40°F to 302°F)
- Maximum Vehicle Speed
- 250 km/h (155 mph)
Electronic Control
- Control Unit
- EGS (Electronic Transmission Control)
- Sensors
-
- Input speed sensor
- Output speed sensor
- Transmission fluid temperature sensor
- Turbine speed sensor
- Communication Protocol
- CAN bus
Maintenance Specifications
- Filter Part Number
- 24117525031
- Gasket Part Number
- 24117525032
- Sealant Type
- Loctite 574
- Torque Specifications
- Pan Bolts: 10 Nm (7.4 lb-ft)Fill Plug: 35 Nm (25.8 lb-ft)Drain Plug: 35 Nm (25.8 lb-ft)
Diagnostic Specifications
- Diagnostic Tool
- BMW ISTA
- Fault Codes
-
- P0700 - Transmission Control System Malfunction
- P0715 - Input/Turbine Speed Sensor Circuit Malfunction
- P0720 - Output Speed Sensor Circuit Malfunction
- P0741 - Torque Converter Clutch Circuit Performance or Stuck Off
- Diagnostic Procedures
-
- Check transmission fluid level and condition
- Inspect wiring and connectors for damage
- Perform adaptation reset using diagnostic tool
Safety information
- Warning
- Always disconnect the battery before performing any transmission service
- Precautions
-
- Use only specified transmission fluid to avoid damage
- Ensure all bolts are torqued to specification to prevent leaks
- Avoid overfilling the transmission to prevent foaming and overheating
Service Information Service
Detailed service requirements and schedules for the ZF 8HP transmission
- Inspect transmission fluid level and condition
- Check for leaks and damage to transmission components
- Perform diagnostic scan for fault codes
Early inspection recommended for vehicles under heavy load or severe driving conditions
- Replace transmission fluid and filter
- Reset adaptation values using diagnostic tool
- Inspect and replace seals and gaskets as necessary
Fluid change interval may vary based on driving conditions and vehicle usage
Common Questions
Find answers to common questions about torque specifications
Q1 What is the torque capacity of the ZF 8HP transmission in the 2014-2016 BMW 428i?
What is the torque capacity of the ZF 8HP transmission in the 2014-2016 BMW 428i?
The ZF 8HP transmission in the 2014-2016 BMW 428i has a torque capacity of up to 480 Nm (354 lb-ft). This ensures compatibility with the N20 2.0L turbocharged inline-4 engine, which produces a maximum torque of 350 Nm (258 lb-ft).
Q2 What type of transmission fluid is recommended for the ZF 8HP transmission?
What type of transmission fluid is recommended for the ZF 8HP transmission?
The ZF 8HP transmission requires ZF Lifeguard 8 transmission fluid, part number S671 090 312. This fluid is specifically formulated for optimal performance and longevity of the transmission. Approximately 7.5 liters (7.9 quarts) are needed for a complete fluid change.
Q3 How often should the transmission fluid be replaced in the ZF 8HP transmission?
How often should the transmission fluid be replaced in the ZF 8HP transmission?
BMW recommends replacing the transmission fluid and filter every 60,000 to 100,000 miles (96,000 to 160,000 km) under normal driving conditions. Severe driving conditions, such as frequent towing or stop-and-go traffic, may require more frequent service intervals.
Q4 What is the gear ratio configuration of the ZF 8HP transmission?
What is the gear ratio configuration of the ZF 8HP transmission?
The ZF 8HP transmission in the 2014-2016 BMW 428i 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 final drive ratio is 3.077.
Q5 Can the ZF 8HP transmission be reprogrammed or tuned for better performance?
Can the ZF 8HP transmission be reprogrammed or tuned for better performance?
Yes, the ZF 8HP transmission can be reprogrammed using BMW-specific software tools or aftermarket tuning solutions. Reprogramming can improve shift responsiveness, adjust shift points, and enhance overall performance. However, this may void the vehicle's warranty and should be performed by a qualified technician.
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 Manual
Coming SoonOfficial technical manual from ZF detailing the operation, maintenance, and repair procedures for the 8HP transmission.
BMW 428i Service Schedule
Coming SoonBMW's recommended service intervals for the 2014-2016 428i, including transmission fluid and filter replacement.
ZF Lifeguard 8 Fluid Specifications
Coming SoonDetailed specifications and compatibility information for ZF Lifeguard 8 transmission fluid.
BMW ISTA Diagnostic Software
Coming SoonOfficial BMW diagnostic software for troubleshooting and reprogramming the ZF 8HP transmission.
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
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
About the Author
Expert automotive knowledge and experience
'/%3E%3Cpath d='M60 30a20 20 0 1 1 0 40 20 20 0 0 1 0-40zm0 45c16.5 0 30 7.5 30 16.8V100H30v-8.2c0-9.3 13.5-16.8 30-16.8z' fill='%23404040'/%3E%3C/svg%3E)
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.