Mercedes-Benz Mercedes SLK 2004-2010 7G-TRONIC Transmission Specifications
This document provides a detailed overview of the 7G-Tronic transmission specifications for the 2004-2010 Mercedes SLK. The 7G-Tronic, also known as the 7-speed automatic transmission, is a key component in the SLK's drivetrain, offering smooth gear shifts, improved fuel efficiency, and enhanced performance. This specification sheet includes details on gear ratios, torque capacity, fluid requirements, and maintenance intervals. It is designed to assist mechanics, enthusiasts, and owners in understanding the transmission's capabilities, ensuring proper maintenance, and identifying compatibility for upgrades or replacements. Whether you're looking to service your SLK or explore performance enhancements, this resource offers valuable technical insights to optimize your vehicle's transmission system.
Overview Specifications
This document provides detailed specifications and technical information about the 7G-TRONIC transmission used in the 2004-2010 Mercedes SLK. It is designed to assist users in understanding the transmission's features, performance, and maintenance requirements. The document is organized into sections for easy navigation and includes a quick reference guide for key specifications. Use the search and navigation instructions to find specific information efficiently.
How to Use
Use the search functionality to quickly locate specific terms or topics within the document. Enter keywords related to the 7G-TRONIC transmission, such as 'gear ratios' or 'shift modes', to find relevant sections.
Navigate through the document by scrolling or using the table of contents. Each major section is labeled with a title and description, making it easy to find the information you need. Subsections provide detailed technical points for deeper understanding.
Key Specifications
Number of Gears
7
Maximum Torque Capacity
700 Nm
Shift Time
0.1 seconds
Transmission Fluid Capacity
7.5 liters
Weight
86 kg
Available Specifications
Transmission Design
This section covers the design and engineering of the 7G-TRONIC transmission, including its construction, components, and unique features. Learn about the transmission's architecture and how it contributes to the vehicle's performance.
Transmission Design
This section covers the design and engineering of the 7G-TRONIC transmission, including its construction, components, and unique features. Learn about the transmission's architecture and how it contributes to the vehicle's performance.
Construction and Components
- Seven-speed automatic transmission
- Compact and lightweight design
- Hydraulic torque converter
- Electronically controlled shift system
- Integrated control unit
- Durable materials for long-lasting performance
Unique Features
- Adaptive shift logic
- Manual shift mode with steering wheel paddles
- Smooth and precise gear changes
- Improved fuel efficiency
- Enhanced driving dynamics
- Low maintenance requirements
Performance Specifications
Explore the performance characteristics of the 7G-TRONIC transmission, including gear ratios, shift times, and efficiency. This section provides insights into how the transmission enhances the driving experience.
Performance Specifications
Explore the performance characteristics of the 7G-TRONIC transmission, including gear ratios, shift times, and efficiency. This section provides insights into how the transmission enhances the driving experience.
Gear Ratios
- 1st gear: 4.38:1
- 2nd gear: 2.86:1
- 3rd gear: 1.92:1
- 4th gear: 1.37:1
- 5th gear: 1.00:1
- 6th gear: 0.82:1
- 7th gear: 0.73:1
Shift Times and Efficiency
- Rapid shift times for seamless transitions
- Optimized for fuel efficiency
- Reduced power loss during shifts
- Enhanced acceleration performance
- Improved engine braking
Maintenance and Care
This section provides guidelines for maintaining the 7G-TRONIC transmission to ensure its longevity and optimal performance. Learn about recommended service intervals and common maintenance tasks.
Maintenance and Care
This section provides guidelines for maintaining the 7G-TRONIC transmission to ensure its longevity and optimal performance. Learn about recommended service intervals and common maintenance tasks.
Service Intervals
- Transmission fluid change every 60,000 miles
- Regular inspection of transmission components
- Software updates as recommended by the manufacturer
- Check for leaks and wear periodically
- Replace worn parts promptly
Common Maintenance Tasks
- Fluid level and condition checks
- Filter replacement during fluid changes
- Inspection of seals and gaskets
- Cleaning of transmission cooling system
- Diagnostic scans for error codes
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Transmission Specifications
Overview
- Type
- Automatic Transmission
- Configuration
- 7-speed rear-wheel drive
- Platform
- Mercedes-Benz SLK (2004-2010)
- Material
- Aluminum alloy casing
- Location
- Rear-mounted
Dimensions
- Length
- 29.1 inches (740 mm)
- Width
- 23.6 inches (600 mm)
- Height
- 17.7 inches (450 mm)
- Weight
- 187 lbs (85 kg)
- input Shaft Diameter
- 1.18 inches (30 mm)
- Output Shaft Diameter
- 1.57 inches (40 mm)
- Fluid Capacity
- 7.4 quarts (7 liters)
Materials
- Casing
- Aluminum alloy
- Gears
- High-strength steel
- Clutch Packs
- Composite friction material
- Seals
- Synthetic rubber
- Sensors
- Plastic and copper
Features
- Shifting
-
- Adaptive shift logic
- Manual shift mode
- Sport mode
- Comfort mode
- Efficiency
-
- Reduced internal friction
- Optimized gear ratios
- Eco mode
- Lock-up clutch in all gears
- Durability
-
- Reinforced gear sets
- High-temperature resistant materials
- Enhanced cooling system
- integration
-
- CAN bus communication
- Electronic control unit (ECU)
- Seamless integration with ESP
- Diagnostics
-
- On-board diagnostics (OBD)
- Self-learning adaptation
- Error code storage
Safety Features
- Protection
-
- Over-temperature protection
- Overload protection
- Emergency limp-home mode
- Monitoring
-
- Real-time sensor monitoring
- Fluid level detection
- Gear position verification
Comfort Features
- Driving
-
- Smooth gear transitions
- Quiet operation
- Reduced vibration
- Controls
-
- Paddle shifters
- Intuitive gear selector
- Customizable driving modes
Accessories
- Upgrades
-
- Performance tuning software
- Enhanced cooling kit
- Shift paddle extensions
- Maintenance
-
- Transmission fluid kit
- Filter replacement kit
- Seal replacement kit
- Diagnostics
-
- OBD scanner
- Transmission diagnostic tool
- Software update kit
Maintenance
- Service interval
- Every 40,000 miles or 48 months
- Service Items
-
- Fluid and filter replacement
- Seal inspection
- Clutch pack wear check
- Sensor calibration
- Software update
- Maintenance Notes
- Use only Mercedes-Benz approved transmission fluid
Warranty
- Basic
- Miles: 50,000Years: 4Coverage: Parts and labor
- Powertrain
- Miles: 100,000Years: 7Coverage: Major components
- Corrosion
- Miles: UnlimitedYears: 12Coverage: Perforation only
- Emissions
- Miles: 80,000Years: 8Coverage: Emission-related parts
Production Details
- Manufacturer
- Mercedes-Benz AG
- Manufacturing Process
-
- Precision CNC machining
- Automated assembly
- Laser welding
- Quality Control
- Testing: Durability testing, Performance testing, Environmental testingCertification: ISO 9001
- Sustainability
-
- Recyclable materials
- Energy-efficient production
- Waste reduction initiatives
- Production Metrics
- Units Per Year: 500,000Defect Rate: 0.01%Lead Time: 4 weeks
Service Information for 7g tronic transmission Service
Maintenance and service requirements specific to this component
- Replace transmission fluid
- Replace transmission filter
- Inspect seals and gaskets
- Check clutch pack wear
- Calibrate sensors
Use only approved transmission fluid to avoid damage
- Full transmission flush
- Replace all seals and gaskets
- Inspect gear sets for wear
- Test electronic control unit
- Update transmission software
Special tools required for seal replacement
- Overhaul transmission
- Replace clutch packs
- Inspect and replace worn gears
- Test all sensors and actuators
- Perform performance calibration
Major service requires certified technician
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 7G-Tronic transmission compatible with all Mercedes SLK models from 2004-2010?
Is the 7G-Tronic transmission compatible with all Mercedes SLK models from 2004-2010?
The 7G-Tronic transmission is compatible with most Mercedes SLK models from 2004-2010, specifically the SLK 280, SLK 350, and SLK 55 AMG. However, compatibility may vary based on engine type and model year. Always verify with your vehicle's VIN or consult a Mercedes-Benz dealer to confirm compatibility.
Q2 What are the maintenance requirements for the 7G-Tronic transmission?
What are the maintenance requirements for the 7G-Tronic transmission?
The 7G-Tronic transmission requires regular maintenance to ensure optimal performance. This includes fluid and filter changes every 40,000 to 60,000 miles, depending on driving conditions. Additionally, inspect the transmission for leaks, wear, and software updates during routine service intervals. Adhering to the maintenance schedule is crucial for longevity.
Q3 How do I replace the 7G-Tronic transmission in a 2004-2010 Mercedes SLK?
How do I replace the 7G-Tronic transmission in a 2004-2010 Mercedes SLK?
Replacing the 7G-Tronic transmission involves several steps: 1) Disconnect the battery and remove the transmission pan. 2) Detach the driveshaft and transmission mounts. 3) Lower the transmission carefully using a jack. 4) Install the new transmission, ensuring all connections are secure. 5) Refill with the correct transmission fluid and test for proper operation. Professional assistance is recommended.
Q4 What are common troubleshooting steps for the 7G-Tronic transmission?
What are common troubleshooting steps for the 7G-Tronic transmission?
Common issues include rough shifting, delayed engagement, or warning lights. Start by checking transmission fluid levels and quality. Inspect for leaks or damaged wiring. Use a diagnostic tool to scan for error codes. If issues persist, consider software updates or professional diagnostics to identify internal faults or wear.
Q5 How can I optimize the performance of the 7G-Tronic transmission?
How can I optimize the performance of the 7G-Tronic transmission?
To optimize performance, use Mercedes-Benz-approved transmission fluid and ensure regular maintenance. Avoid aggressive driving and overheating. Consider a software update for improved shift logic. Installing a transmission cooler can enhance durability, especially in high-performance or high-temperature conditions.
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-Benz 7G-Tronic Service Manual
Coming SoonDetailed service manual covering maintenance, repair, and troubleshooting for the 7G-Tronic transmission in 2004-2010 SLK models.
7G-Tronic Technical Service Bulletin (TSB)
Coming SoonLatest updates and fixes for the 7G-Tronic transmission, including software enhancements and common issues.
7G-Tronic Parts and Accessories Catalog
Coming SoonComprehensive parts catalog for the 7G-Tronic transmission, including filters, gaskets, and fluid specifications.
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General Information
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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.
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