BMW 330i 2012-2018 ZF 8HP Transmission Specifications
Detailed technical specifications for the ZF-8HP automatic transmission used in the 2012-2018 BMW 330I. This document covers gear ratios, torque capacity, fluid requirements, shift logic, and diagnostic codes specific to this transmission model.
Overview Specifications
Comprehensive description of the zf-8hp-transmission specifications for the 2012-2018 bmw 330I, including key features, measurements, and technical details
How to Use
Use the search bar 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 listed below.
Key Specifications
Transmission Type
8-speed automatic
Weight
86 kg (189.6 lbs)
Torque Capacity
500 Nm (368.8 lb-ft)
Fluid Capacity
9.5 liters (10.0 quarts)
Shift Time
200 milliseconds
Available Specifications
Transmission Design and Architecture
Detailed overview of the zf-8hp-transmission's design, including its layout, components, and construction.
Transmission Design and Architecture
Detailed overview of the zf-8hp-transmission's design, including its layout, components, and construction.
Transmission Layout
- 8-speed automatic transmission with planetary gear sets
- Compact and lightweight design, weighing approximately 86 kg (189.6 lbs)
- Integrated torque converter with lock-up clutch
- Electro-hydraulic control system for precise gear shifts
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: 4.923:1
Note: Gear ratios optimized for performance and fuel efficiency.
Performance Specifications
Technical details regarding the transmission's performance capabilities, including torque handling and shift times.
Performance Specifications
Technical details regarding the transmission's performance capabilities, including torque handling and shift times.
Torque Capacity
- Maximum torque capacity: 500 Nm (368.8 lb-ft)
- Designed to handle high-performance engines
- Suitable for both rear-wheel drive and all-wheel drive configurations
Shift Times
- Shift times as low as 200 milliseconds
- Adaptive shift programming for dynamic driving conditions
- Smooth and precise gear changes for enhanced driving experience
Note: Shift times may vary based on driving mode and conditions.
Maintenance and Fluid Specifications
Information on maintenance requirements and fluid specifications for the zf-8hp-transmission.
Maintenance and Fluid Specifications
Information on maintenance requirements and fluid specifications for the zf-8hp-transmission.
Fluid Capacity
- Total fluid capacity: 9.5 liters (10.0 quarts)
- Recommended fluid type: ZF Lifeguard 8
- Fluid change interval: 80,000 km (50,000 miles) or as per manufacturer guidelines
Maintenance Requirements
- Regular inspection of transmission fluid level and condition
- Periodic replacement of transmission filter
- Diagnostic checks for error codes and system performance
- Ensure proper cooling system operation to prevent overheating
Note: Use only manufacturer-approved fluids and components for maintenance.
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Transmission Specifications
General information
- Transmission Type
- 8-speed automatic
- Manufacturer
- ZF Friedrichshafen AG
- Model Code
- 8HP45
- Compatible Engine
- N20B20 (2.0L Turbocharged Inline-4)
- Vehicle Model
- 2012-2018 BMW 330i
- Part Number
- 24108648801
Dimensions And Weight
- Length
- 720 mm
- Width
- 550 mm
- Height
- 420 mm
- Weight
- 87 kg
- Fluid Capacity
- 9.5 liters
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
- Recommended Torque Limit
- 400 Nm
- Torque Converter Lockup Speed
- 1500 rpm
Fluid Specifications
- Fluid Type
- ZF Lifeguard 8
- Fluid Part Number
- 83220443568
- Fluid Change interval
- 60,000 miles or 48 months
- Operating Temperature Range
- -40°C to 150°C
- Viscosity
- 6.8 cSt at 100°C
Operational Parameters
- Maximum Engine Speed
- 7000 rpm
- Shift Response Time
- 200 ms
- Towing Capacity
- 2000 kg
- Maximum Vehicle Speed
- 250 km/h (electronically limited)
Electronic Control
- Control Module
- EGS (Electronic Transmission Control)
- Module Part Number
- 7594678
- Communication Protocol
- CAN bus
- Sensors
-
- Input speed sensor
- Output speed sensor
- Transmission fluid temperature sensor
- Gear position sensor
Maintenance Specifications
- Fluid Change Procedure
- Tools Required: Fluid pump, Torque wrench, Drain panSteps: Warm up transmission to operating temperature, Remove drain plug and drain fluid, Refill with new fluid using pump, Check fluid level with dipstickTorque Specifications: Drain Plug: 25 Nm, Fill Plug: 25 Nm
- Filter Replacement interval
- 60,000 miles or 48 months
- Filter Part Number
- 24117525031
Diagnostic Specifications
- 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 Tools
-
- BMW ISTA
- OBD-II scanner
- Diagnostic Procedure
- Steps: Connect diagnostic tool to OBD-II port, Read fault codes from EGS module, Perform live data monitoring, Clear fault codes after repair
Safety information
- Warnings
-
- Do not exceed maximum torque capacity to avoid transmission damage
- Use only specified transmission fluid to ensure proper operation
- Ensure vehicle is on a level surface when checking fluid level
- Disconnect battery before performing electrical repairs
Service Information Service
Detailed service requirements and schedules for the ZF 8HP transmission
- Inspect transmission fluid level
- Check for leaks
- Inspect transmission mounts
Perform visual inspection and address any leaks or damage
- Replace transmission fluid
- Replace transmission filter
- Reset adaptation values
Use only ZF Lifeguard 8 fluid and follow proper refill procedure
- Inspect torque converter
- Check solenoid valves
- Perform full diagnostic scan
Address any fault codes and replace worn components as needed
Common Questions
Find answers to common questions about torque specifications
Q1 What is the torque capacity of the ZF 8HP transmission in the 2012-2018 BMW 330i?
What is the torque capacity of the ZF 8HP transmission in the 2012-2018 BMW 330i?
The ZF 8HP transmission used in the 2012-2018 BMW 330i has a torque capacity of up to 500 Nm (369 lb-ft). This ensures compatibility with the N20 and B48 engines, which produce torque within this range.
Q2 What type of transmission fluid is recommended for the ZF 8HP in the BMW 330i?
What type of transmission fluid is recommended for the ZF 8HP in the BMW 330i?
ZF Lifeguard 8 is the recommended transmission fluid for the ZF 8HP transmission. The fluid capacity is approximately 9.5 liters (10 quarts), but always refer to the specific service manual for exact requirements during fluid changes.
Q3 How often should the ZF 8HP transmission fluid be replaced in the BMW 330i?
How often should the ZF 8HP transmission fluid be replaced in the BMW 330i?
BMW recommends a transmission fluid and filter change every 60,000 to 100,000 miles, depending on driving conditions. Severe driving conditions, such as frequent towing or stop-and-go traffic, may necessitate more frequent service intervals.
Q4 What are the common symptoms of a failing ZF 8HP transmission in the BMW 330i?
What are the common symptoms of a failing ZF 8HP transmission in the BMW 330i?
Common symptoms include harsh shifting, delayed engagement, transmission slipping, and warning lights such as the 'Transmission Fault' or 'Drivetrain Malfunction' messages. These issues may indicate low fluid levels, worn components, or electronic control module problems.
Q5 Can the ZF 8HP transmission be reprogrammed or updated in the BMW 330i?
Can the ZF 8HP transmission be reprogrammed or updated in the BMW 330i?
Yes, the ZF 8HP transmission control software can be updated using BMW's ISTA diagnostic system. Reprogramming can address shifting issues, improve performance, and ensure compatibility with the latest software updates.
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 documentation from ZF detailing the design, operation, and maintenance of the 8HP transmission.
BMW 330i Service Manual
Coming SoonComprehensive service manual for the 2012-2018 BMW 330i, including transmission-specific procedures and specifications.
ZF Lifeguard 8 Fluid Specifications
Coming SoonDetailed information on ZF Lifeguard 8 transmission fluid, including compatibility and usage guidelines.
BMW ISTA Diagnostic Software Guide
Coming SoonStep-by-step guide on using BMW's ISTA diagnostic system for transmission updates and troubleshooting.
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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.
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