Mercedes-Benz Mercedes B-Class 2018-present 8G-DCT Transmission Specifications
This document provides detailed technical specifications for the 8-speed Dual-Clutch Transmission (8G-DCT) used in the 2018-Present Mercedes B-Class. It covers key aspects such as gear ratios, torque capacity, shift patterns, and fluid requirements. These specifications are essential for automotive technicians, enthusiasts, and owners to understand the transmission's performance, maintenance needs, and compatibility with other components. The document also highlights the transmission's advanced features, including its seamless shift technology and fuel efficiency enhancements. By offering a comprehensive overview, this resource aids in diagnostics, repairs, and upgrades, ensuring optimal vehicle performance and longevity.
Overview Specifications
This document provides detailed specifications and technical information about the 8G-DCT transmission used in the 2018-Present Mercedes B-Class. It is designed to assist users in understanding the transmission's features, performance, and maintenance requirements. Each section is organized to help you quickly find relevant information, whether you're a technician, enthusiast, or owner. Use the search and navigation instructions to efficiently locate the details you need.
How to Use
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Key Specifications
Gears
8
Torque Capacity
500 Nm
Shift Time
<200 ms
Weight
85 kg
Fuel Efficiency
Up to 15% improvement
Available Specifications
Transmission Overview
This section provides a high-level overview of the 8G-DCT transmission, including its design, purpose, and key features. Learn about the transmission's architecture and how it enhances the driving experience in the Mercedes B-Class.
Transmission Overview
This section provides a high-level overview of the 8G-DCT transmission, including its design, purpose, and key features. Learn about the transmission's architecture and how it enhances the driving experience in the Mercedes B-Class.
Design and Architecture
- 8-speed dual-clutch transmission (DCT)
- Compact and lightweight design
- Optimized for fuel efficiency and performance
- Smooth and rapid gear shifts
Key Features
- Adaptive shift logic for dynamic driving
- Manual and automatic mode options
- Enhanced durability and reliability
- Low maintenance requirements
Performance Specifications
This section details the performance metrics of the 8G-DCT transmission, including shift times, torque capacity, and efficiency. Understand how the transmission contributes to the overall performance of the Mercedes B-Class.
Performance Specifications
This section details the performance metrics of the 8G-DCT transmission, including shift times, torque capacity, and efficiency. Understand how the transmission contributes to the overall performance of the Mercedes B-Class.
Shift Times
- Ultra-fast gear changes
- Shift times under 200 milliseconds
- Seamless acceleration experience
- Improved responsiveness
Torque Capacity
- Handles up to 500 Nm of torque
- Designed for high-performance engines
- Robust clutch system
- Enhanced load-bearing capacity
Maintenance and Care
This section covers essential maintenance practices and care tips for the 8G-DCT transmission. Learn about recommended service intervals, fluid requirements, and troubleshooting common issues.
Maintenance and Care
This section covers essential maintenance practices and care tips for the 8G-DCT transmission. Learn about recommended service intervals, fluid requirements, and troubleshooting common issues.
Service Intervals
- Regular inspection every 60,000 miles
- Transmission fluid change every 100,000 miles
- Software updates as needed
- Professional diagnostics recommended
Troubleshooting
- Check for unusual noises or vibrations
- Monitor for delayed or rough shifts
- Inspect for fluid leaks
- Consult a certified technician for issues
Search Specifications
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Transmission Specifications
Overview
- Type
- 8-speed dual-clutch automatic
- Configuration
- Transverse-mounted
- Platform
- MFA (Modular Front Architecture)
- Material
- Aluminum and steel composite
- Location
- Front-wheel drive
Dimensions
- Length
- 22.5 in / 572 mm
- Width
- 16.3 in / 414 mm
- Height
- 12.8 in / 325 mm
- Weight
- 185 lbs / 84 kg
- input Shaft Diameter
- 1.2 in / 30 mm
- Output Shaft Diameter
- 1.5 in / 38 mm
- Fluid Capacity
- 7.4 quarts / 7 liters
Materials
- Housing
- Aluminum alloy
- Gears
- Case-hardened steel
- Clutch Packs
- Carbon fiber composite
- Seals
- Synthetic rubber
- Sensors
- Plastic and copper
Features
- Performance
-
- Quick shift times (under 100ms)
- Adaptive shift patterns
- Sport mode for aggressive shifting
- Eco mode for fuel efficiency
- Drivability
-
- Smooth gear transitions
- Low-speed creep function
- Hill start assist
- Launch control
- Technology
-
- Integrated torque converter
- Electronic control unit (ECU)
- Hydraulic actuation system
- CAN bus communication
- Efficiency
-
- Reduced internal friction
- Optimized gear ratios
- Low fluid drag design
- Energy recuperation
- Durability
-
- High-temperature resistance
- Corrosion-resistant materials
- Sealed for life design
- Self-diagnostic capabilities
Safety Features
- Protection
-
- Overheat protection
- Overload protection
- Fail-safe limp mode
- Monitoring
-
- Real-time sensor feedback
- Adaptive shift logic
- System self-diagnostics
Comfort Features
- Noise Reduction
-
- Sound insulation
- Precision gear meshing
- Vibration dampening
- Smoothness
-
- Seamless gear changes
- Adaptive clutch control
- Torque smoothing
- Convenience
-
- Auto park function
- Manual override
- Paddle shifters
Accessories
- Optional Features
-
- Performance tuning kits
- Upgraded cooling systems
- Custom shift paddles
- Maintenance
-
- Transmission fluid kits
- Filter replacement sets
- Diagnostic tools
- Protection
-
- Transmission skid plates
- Heat shields
- Seal protectors
Maintenance
- Service interval
- Every 40,000 miles or 48 months
- Service Items
-
- Fluid and filter replacement
- Clutch inspection
- Sensor calibration
- Seal inspection
- System diagnostics
- Notes
- Use only Mercedes-approved transmission fluid
Warranty
- Basic
- Years: 4Miles: 50,000Coverage: Parts and labor
- Powertrain
- Years: 6Miles: 70,000Coverage: Transmission components
- Corrosion
- Years: 12Miles: UnlimitedCoverage: Perforation only
- Roadside Assistance
- Years: 4Miles: UnlimitedCoverage: 24/7 support
Production Details
- Manufacturer
- Mercedes-Benz AG
- Manufacturing Process
-
- Precision machining
- Automated assembly
- Laser welding
- Quality testing
- Quality Control
- inspection: 100% component testingTolerances: ±0.001 in / ±0.025 mmDurability: 500,000 cycle testing
- Sustainability
-
- Recycled materials
- Energy-efficient production
- Waste reduction initiatives
- Production Metrics
- Units Per Day: 500Defect Rate: <0.1%Lead Time: 3 days
Service Information for 8g dct transmission Service
Maintenance and service requirements specific to this component
- Transmission fluid and filter replacement
- Clutch wear inspection
- Sensor and actuator calibration
- Seal integrity check
- System diagnostic scan
Use only Mercedes-Benz approved transmission fluid
- Full transmission fluid flush
- Clutch pack inspection and adjustment
- Hydraulic system pressure test
- Gear mesh pattern check
- Control unit software update
Requires specialized diagnostic equipment
- Complete transmission overhaul
- Clutch pack replacement
- Seal and gasket replacement
- Bearing inspection and replacement
- Performance validation testing
Major service should be performed by authorized Mercedes-Benz technicians
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 8G-DCT transmission compatible with all Mercedes B-Class models from 2018 to present?
Is the 8G-DCT transmission compatible with all Mercedes B-Class models from 2018 to present?
The 8G-DCT transmission is compatible with most Mercedes B-Class models from 2018 onwards, specifically those equipped with 2.0L turbocharged engines. However, it is essential to verify compatibility with your vehicle's VIN number, as certain trims or engine configurations may require specific adaptations. For precise details, consult the official Mercedes-Benz technical documentation or contact an authorized dealer.
Q2 What are the maintenance requirements for the 8G-DCT transmission?
What are the maintenance requirements for the 8G-DCT transmission?
The 8G-DCT transmission requires regular maintenance to ensure optimal performance. This includes checking and replacing the transmission fluid every 60,000 miles or as recommended in the owner’s manual. Additionally, inspect the transmission mounts and seals for wear and tear. It’s crucial to follow the manufacturer’s maintenance schedule, which includes periodic software updates to enhance functionality and address potential issues.
Q3 How do I install or replace the 8G-DCT transmission in a Mercedes B-Class?
How do I install or replace the 8G-DCT transmission in a Mercedes B-Class?
Replacing the 8G-DCT transmission involves several steps: first, disconnect the battery and remove the transmission mount. Detach the driveshaft and disconnect all electrical connectors and fluid lines. Carefully lower the transmission using a jack and install the new unit by reversing the process. Ensure all connections are secure and refill with the specified transmission fluid. For precise instructions, refer to the Mercedes-Benz service manual or seek professional assistance.
Q4 What should I do if my 8G-DCT transmission is malfunctioning?
What should I do if my 8G-DCT transmission is malfunctioning?
If your 8G-DCT transmission is malfunctioning, start by checking for error codes using a diagnostic tool. Common issues include rough shifting, delayed engagement, or warning lights on the dashboard. Inspect the transmission fluid level and quality, and ensure all electrical connections are secure. Resetting the transmission control module may also resolve minor issues. For persistent problems, consult a certified technician or Mercedes-Benz service center.
Q5 How can I optimize the performance of my 8G-DCT transmission?
How can I optimize the performance of my 8G-DCT transmission?
To optimize the performance of your 8G-DCT transmission, ensure regular maintenance, including timely fluid changes and software updates. Use high-quality transmission fluid specified by Mercedes-Benz. Avoid aggressive driving habits that can strain the transmission. Additionally, consider upgrading to performance-oriented software tuning, which can enhance shift responsiveness and overall efficiency. Always consult with a professional before making modifications.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Mercedes B-Class 8G-DCT Service Manual
Coming SoonThis manual provides detailed instructions for servicing and maintaining the 8G-DCT transmission in Mercedes B-Class vehicles.
Technical Bulletin: 8G-DCT Software Update
Coming SoonThis bulletin outlines the latest software updates for the 8G-DCT transmission, including performance enhancements and bug fixes.
Mercedes B-Class Parts and Accessories Catalog
Coming SoonThis catalog provides a comprehensive list of parts and accessories compatible with the Mercedes B-Class, including the 8G-DCT transmission.
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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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