Mercedes-Benz Mercedes CLS 2010-2017 7G-TRONIC Transmission Specifications
This document provides a detailed overview of the 7G-Tronic transmission specifications for the 2010-2017 Mercedes-Benz CLS. It includes technical details such as gear ratios, torque capacity, shift patterns, and fluid requirements. The 7G-Tronic, a 7-speed automatic transmission, is designed for smooth shifting, improved fuel efficiency, and enhanced performance. This guide is invaluable for owners, technicians, and enthusiasts seeking to understand the transmission's operation, maintenance, and compatibility. It also covers common issues, repair tips, and upgrade options, making it a comprehensive resource for anyone working with or owning a Mercedes-Benz CLS from this generation.
Overview Specifications
This document provides detailed specifications and technical information about the 7G-TRONIC transmission used in the 2010-2017 Mercedes-Benz CLS. It is designed to assist users in understanding the transmission's features, performance, and maintenance requirements. Use the search functionality to find specific details or navigate through sections for a comprehensive overview of the transmission system.
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Key Specifications
Number of Gears
7
Maximum Torque Capacity
737 lb-ft
Transmission Weight
187 lbs
Fluid Capacity
7.5 quarts
Service Interval
60,000 miles
Available Specifications
Transmission Design
This section covers the design and architecture of the 7G-TRONIC transmission, including its components and layout. Learn about the innovative features that make this transmission a standout in its class.
Transmission Design
This section covers the design and architecture of the 7G-TRONIC transmission, including its components and layout. Learn about the innovative features that make this transmission a standout in its class.
Gear Configuration
- 7-speed automatic transmission
- Wet clutch system for smooth shifting
- Compact design for improved packaging
- Adaptive shift logic for optimized performance
- Torque converter with lock-up clutch
- Integrated control unit for precise operation
Material and Construction
- High-strength aluminum housing
- Lightweight components for efficiency
- Durable gears for long-term reliability
- Advanced lubrication system for reduced wear
- Sealed design for protection against contaminants
Performance Features
Explore the performance capabilities of the 7G-TRONIC transmission, including its responsiveness, efficiency, and driving dynamics. This section highlights the technology that enhances the driving experience.
Performance Features
Explore the performance capabilities of the 7G-TRONIC transmission, including its responsiveness, efficiency, and driving dynamics. This section highlights the technology that enhances the driving experience.
Shift Characteristics
- Quick and seamless gear changes
- Multiple driving modes (Comfort, Sport, Manual)
- Downshift rev-matching for smoother transitions
- Adaptive learning for driver behavior
- Low-speed maneuverability enhancement
Efficiency and Fuel Economy
- Reduced internal friction for better efficiency
- Optimized gear ratios for fuel savings
- Eco mode for improved mileage
- Start-stop system compatibility
- Energy recuperation during deceleration
Maintenance and Service
This section provides essential information on maintaining and servicing the 7G-TRONIC transmission. Learn about recommended service intervals, fluid requirements, and troubleshooting tips.
Maintenance and Service
This section provides essential information on maintaining and servicing the 7G-TRONIC transmission. Learn about recommended service intervals, fluid requirements, and troubleshooting tips.
Service Intervals
- Transmission fluid change every 60,000 miles
- Filter replacement during fluid changes
- Regular software updates for optimal performance
- Inspection of seals and gaskets
- Diagnostic checks for error codes
Fluid Specifications
- Mercedes-Benz-approved transmission fluid
- Specific viscosity for 7G-TRONIC systems
- Fluid level check procedure
- Avoid mixing different fluid types
- Proper disposal of used transmission fluid
Search Specifications
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Type to search through torque specifications. Results will appear below as you type.
Transmission Specifications
Overview
- Type
- 7-speed automatic transmission
- Configuration
- Longitudinal rear-wheel drive/all-wheel drive
- Platform
- Mercedes-Benz 722.9
- Material
- Aluminum alloy casing
- Location
- Mounted longitudinally in the engine bay
Dimensions
- Length
- 28.5 inches (724 mm)
- Width
- 22.8 inches (579 mm)
- Height
- 18.9 inches (480 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
- Case-hardened steel
- Clutch Packs
- Carbon fiber composite
- Seals
- Viton rubber
- Sensors
- Stainless steel and plastic composites
Features
- Shift Technology
-
- Adaptive shift logic
- Manual shift mode with paddle shifters
- Sport and Comfort driving modes
- Kickdown function for rapid acceleration
- Efficiency
-
- Reduced internal friction
- Optimized gear ratios
- Eco start-stop function
- Low-viscosity transmission fluid
- Durability
-
- Reinforced gear sets
- High-temperature resistant seals
- Robust torque converter
- Enhanced cooling system
- integration
-
- Seamless integration with Mercedes-Benz COMAND system
- Compatibility with 4MATIC all-wheel drive
- Adaptive cruise control compatibility
- Integration with electronic stability control
- Performance
-
- 0-60 mph acceleration optimization
- Smooth gear transitions
- High torque capacity (up to 737 lb-ft)
- Quick response to throttle input
Safety Features
- Fail Safe
-
- Limp-home mode
- Overheat protection
- Emergency neutral mode
- Monitoring
-
- Real-time transmission temperature monitoring
- Fluid level and pressure sensors
- Gear position sensors
- Protection
-
- Anti-theft gear lock
- Over-rev protection
- Torque converter lockup control
Comfort Features
- Noise Reduction
-
- Precision-engineered gear meshing
- Vibration dampening mounts
- Acoustic insulation
- Smoothness
-
- Adaptive shift mapping
- Torque converter lockup control
- Low-speed creep function
- Convenience
-
- Automatic park engagement
- Hill-start assist
- Rain-sensing shift logic
- Climate Control
-
- Transmission fluid temperature regulation
- Integrated cooling system
- Cold-start optimization
Accessories
- Upgrades
-
- Performance transmission fluid
- Reinforced transmission mounts
- Custom shift paddles
- Tools
-
- Transmission fluid exchange kit
- Diagnostic scan tool
- Torque converter alignment tool
- Maintenance
-
- Transmission fluid filter kit
- Seal replacement kit
- Gasket set
Maintenance
- Service interval
- Every 40,000 miles or 48 months
- Service Items
-
- Transmission fluid and filter replacement
- Seal and gasket inspection
- Torque converter check
- Shift solenoid testing
- Fluid level and condition check
- Maintenance Notes
- Use only Mercedes-Benz-approved transmission fluid for optimal performance.
Warranty
- Basic
- Miles: 50,000Years: 4Coverage: Parts and labor for manufacturing defects
- Powertrain
- Miles: 100,000Years: 7Coverage: Transmission components and related systems
- Corrosion
- Miles: UnlimitedYears: 12Coverage: Perforation corrosion only
- Extended
- Miles: 120,000Years: 10Coverage: Optional extended coverage for transmission
Production Details
- Manufacturer
- Mercedes-Benz AG
- Manufacturing Process
-
- Precision CNC machining
- Automated assembly line
- Laser welding
- Robotic quality inspection
- Quality Control
- Testing: Durability testing under extreme conditions, Shift pattern validation, Fluid flow analysisStandards: ISO 9001 certification, Mercedes-Benz internal quality standards, Environmental compliance testing
- Sustainability
-
- Recyclable materials used in construction
- Energy-efficient manufacturing processes
- Reduced waste through precision engineering
- Production Metrics
- Annual Output: Approximately 500,000 unitsDefect Rate: Less than 0.1%Lead Time: 4-6 weeks
Service Information for 7g tronic transmission Service
Maintenance and service requirements specific to this component
- Transmission fluid and filter replacement
- Seal and gasket inspection
- Torque converter check
- Shift solenoid testing
- Fluid level and condition check
Use only Mercedes-Benz-approved transmission fluid for optimal performance.
- Comprehensive transmission fluid flush
- Valve body inspection
- Clutch pack wear analysis
- Transmission control module diagnostics
Special tools required for valve body inspection.
- Complete transmission overhaul
- Replacement of worn gears and bearings
- Torque converter replacement if necessary
- Performance testing and recalibration
Critical to replace all seals and gaskets during overhaul.
Common Questions
Find answers to common questions about torque specifications
Q1 Is the 7G-Tronic transmission compatible with all 2010-2017 Mercedes CLS models?
Is the 7G-Tronic transmission compatible with all 2010-2017 Mercedes CLS models?
The 7G-Tronic transmission is compatible with most 2010-2017 Mercedes CLS models, including the CLS 350, CLS 500, and CLS 63 AMG. However, specific compatibility depends on the engine type and drivetrain configuration. It is essential to verify the vehicle’s VIN or consult the manufacturer’s documentation to ensure proper compatibility with your model.
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 every 60,000 to 80,000 miles, including fluid and filter replacement. Periodic inspections of the mechatronic unit and software updates are also recommended. Always use Mercedes-Benz-approved transmission fluid (ATF 134) and follow the manufacturer’s maintenance schedule to ensure optimal performance and longevity.
Q3 How do I install or replace the 7G-Tronic transmission in a Mercedes CLS?
How do I install or replace the 7G-Tronic transmission in a Mercedes CLS?
Replacing the 7G-Tronic transmission involves removing the underbody panels, disconnecting the driveshaft, and detaching the transmission mounts. Use a transmission jack to support the unit during removal. Installation requires precise alignment, torque specifications, and reconnection of electrical components. Post-installation, perform a software calibration and fluid refill using MB STAR diagnostics.
Q4 What are common troubleshooting steps for 7G-Tronic transmission issues?
What are common troubleshooting steps for 7G-Tronic transmission issues?
Common issues include rough shifting, delayed engagement, or warning lights. Start by checking the transmission fluid level and condition. Use diagnostic tools to scan for error codes in the mechatronic unit. Inspect electrical connections and wiring harnesses. If problems persist, consult a certified technician for further diagnosis or software updates.
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, ensure regular fluid changes with MB-approved ATF 134. Keep the transmission software updated via Mercedes-Benz diagnostics. Avoid aggressive driving and ensure proper engine load management. Installing an auxiliary transmission cooler can also enhance performance, especially in high-temperature conditions or for high-performance models.
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 procedures for the 7G-Tronic transmission.
Technical Service Bulletin 7G-Tronic Update
Coming SoonLatest software updates and technical improvements for the 7G-Tronic transmission.
7G-Tronic Parts and Accessories Catalog
Coming SoonComprehensive catalog of OEM parts and accessories for the 7G-Tronic transmission.
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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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