Mercedes-Benz Mercedes GLS 2016-2019 7G-TRONIC Transmission Transmission Specifications
Mercedes-Benz Mercedes GLS 2016-2019

Mercedes-Benz Mercedes GLS 2016-2019 7G-TRONIC Transmission Specifications

This document provides detailed specifications for the 7G-Tronic transmission used in the 2016-2019 Mercedes GLS. The 7G-Tronic is a 7-speed automatic transmission known for its smooth shifting, fuel efficiency, and reliability. Covered specifications include gear ratios, torque capacity, fluid type, and service intervals. These details are essential for owners, technicians, and enthusiasts to understand the transmission's performance, maintenance requirements, and compatibility with other components. Whether you're performing routine maintenance, diagnosing issues, or exploring upgrades, this comprehensive guide ensures you have accurate and reliable information. The 7G-Tronic transmission is a key component of the GLS's drivetrain, contributing to its luxury driving experience and robust performance. This resource is designed to be a valuable reference for anyone working with or owning a 2016-2019 Mercedes GLS.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the 7G-Tronic transmission used in the 2016-2019 Mercedes GLS. It is designed to assist users in understanding the features, functionality, and performance of this advanced automatic transmission. The content is organized into sections for easy navigation, and a quick reference table is included for key specifications. Use the search and navigation instructions to efficiently find the information you need.

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 through the sections or using the table of contents. Each section is clearly labeled and contains subsections with detailed information about the 7G-Tronic transmission.

Key Specifications

Transmission Type

7-speed automatic

Max Torque

700 Nm

Gear Ratios

4.38:1 - 0.73:1

Weight

Approx. 90 kg

Driving Modes

Comfort, Sport, Manual

Available Specifications

Transmission Overview

This section provides an introduction to the 7G-Tronic transmission, highlighting its key features and benefits. It covers the design, operation, and advantages of this automatic transmission system used in the Mercedes GLS.

Design and Construction
  • 7-speed automatic transmission
  • Compact and lightweight design
  • Optimized for smooth shifting and fuel efficiency
  • Durable materials for long-term reliability
Operation and Performance
  • Adaptive shift logic for dynamic driving
  • Multiple driving modes (Comfort, Sport, Manual)
  • Enhanced acceleration and responsiveness
  • Reduced power loss for improved efficiency

Technical Specifications

This section delves into the technical details of the 7G-Tronic transmission, including gear ratios, torque capacity, and other performance metrics. It is ideal for users seeking in-depth technical information.

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
Torque Capacity
  • Maximum torque: 700 Nm
  • Compatible with high-performance engines
  • Optimized for heavy-duty applications
  • Smooth torque delivery across all gears

Maintenance and Care

This section provides guidance on maintaining the 7G-Tronic transmission to ensure optimal performance and longevity. It includes tips on servicing, fluid changes, and common troubleshooting steps.

Servicing Recommendations
  • Regular fluid checks and changes
  • Inspect for leaks and wear periodically
  • Follow manufacturer's service intervals
  • Use only approved transmission fluids
Troubleshooting Common Issues
  • Address delayed shifting promptly
  • Check for error codes with diagnostic tools
  • Ensure proper fluid levels and quality
  • Consult a certified technician for complex issues

Transmission Specifications

Overview

Type
Automatic Transmission
Configuration
7-Speed
Platform
Mercedes-Benz GLS
Material
Aluminum Alloy
Location
Longitudinal Placement

Dimensions

Length
28.3 in (720 mm)
Width
19.7 in (500 mm)
Height
13.8 in (350 mm)
Weight
187.4 lbs (85 kg)
input Shaft Diameter
1.2 in (30 mm)
Output Shaft Diameter
1.4 in (35 mm)
Fluid Capacity
7.4 quarts (7 liters)

Materials

Casing
Aluminum Alloy
Gears
Hardened Steel
Clutch Packs
Composite Friction Material
Sensors
Plastic and Copper Alloy

Features

Shifting
  • Smooth Gear Transitions
  • Adaptive Shift Logic
  • Manual Mode with Paddle Shifters
  • Eco Mode Optimization
Performance
  • Quick Response Times
  • High Torque Capacity
  • Efficient Power Transfer
integration
  • Seamless Engine Integration
  • Compatibility with 4MATIC AWD
  • Electronic Control Unit (ECU) Managed
Durability
  • Reinforced Components
  • Heat-Resistant Materials
  • Long Service Life

Safety Features

Protection
  • Overheat Protection
  • Slip Control
  • Emergency Shift Lock
Monitoring
  • Real-Time Diagnostics
  • Fluid Level Sensors
  • Gear Position Feedback

Comfort Features

Noise Reduction
  • Vibration Dampening
  • Quiet Gear Engagement
  • Insulated Casing
Driving Experience
  • Smooth Acceleration
  • Adaptive Shift Patterns
  • Comfort Mode Setting

Accessories

Upgrades
  • Performance Tuning Kits
  • Enhanced Cooling Systems
  • Custom Shift Paddles
Maintenance
  • Transmission Fluid Kits
  • Filter Replacement Sets
  • Diagnostic Tools

Maintenance

Service interval
Every 40,000 miles or 48 months
Service Items
  • Fluid Replacement
  • Filter Inspection
  • Sensor Calibration
  • Seal Checks
  • Shift Mechanism Lubrication
Maintenance Notes
Use only approved transmission fluids and follow manufacturer guidelines.

Warranty

Basic
Miles: 50,000
Years: 4
Coverage: Parts and Labor
Powertrain
Miles: 100,000
Years: 7
Coverage: Transmission Components
Corrosion
Miles: Unlimited
Years: 12
Coverage: Rust Perforation
Warranty Terms
Valid only with authorized service records.

Production Details

Manufacturer
Mercedes-Benz AG
Manufacturing Process
  • Precision Machining
  • Automated Assembly
  • Quality Testing
Quality Control
inspection: 100% Component Testing
Standards: ISO 9001 Certified
Sustainability Practices
  • Recycled Materials
  • Energy-Efficient Manufacturing
  • Waste Reduction Programs
Production Metrics
Units Per Year: 250,000
Defect Rate: Less than 0.1%

Service Information for 7g tronic transmission Service

Maintenance and service requirements specific to this component

40,000
48
  • Transmission Fluid Replacement
  • Filter Inspection and Replacement
  • Sensor Calibration
  • Seal Integrity Check

Use only approved fluids and follow torque specifications.

80,000
96
  • Comprehensive Fluid Flush
  • Clutch Pack Inspection
  • Shift Mechanism Lubrication
  • Electronic Control Unit (ECU) Diagnostics

Professional diagnostic tools required.

120,000
144
  • Transmission Overhaul
  • Component Replacement as Needed
  • Performance Testing
  • System Calibration

Consider professional service for major overhaul.

Common Questions

Find answers to common questions about torque specifications

Q1

Is the 7G-Tronic transmission compatible with other Mercedes models?

The 7G-Tronic transmission, used in the 2016-2019 Mercedes GLS, is compatible with several other Mercedes-Benz models, including the E-Class, S-Class, and GL-Class. It is designed for rear-wheel-drive and all-wheel-drive configurations. However, compatibility depends on the specific model year and engine type. Always verify with Mercedes-Benz or a certified technician to ensure proper fitment and functionality.

Q2

What are the maintenance requirements for the 7G-Tronic transmission?

The 7G-Tronic transmission requires regular maintenance to ensure optimal performance. Mercedes-Benz recommends changing the transmission fluid and filter every 40,000 to 60,000 miles, depending on driving conditions. Additionally, inspect for leaks, monitor shifting behavior, and ensure proper software updates are applied. Adhering to the maintenance schedule in the owner's manual is critical to extending the transmission's lifespan.

Q3

How do I replace the 7G-Tronic transmission in a Mercedes GLS?

Replacing the 7G-Tronic transmission involves several steps: disconnect the battery, remove the transmission crossmember and driveshaft, detach electrical connectors and fluid lines, and unbolt the transmission. Installation requires aligning the new transmission, reconnecting components, and refilling with the specified transmission fluid. Due to the complexity, it is recommended to consult a professional technician or follow the detailed service manual.

Q4

What should I do if my 7G-Tronic transmission is not shifting smoothly?

If your 7G-Tronic transmission is not shifting smoothly, start by checking the transmission fluid level and condition. Low or degraded fluid can cause issues. Inspect for error codes using a diagnostic tool, as faulty sensors or solenoids may be the cause. If problems persist, consult a certified technician to perform a detailed inspection and address any internal mechanical or software-related issues.

Q5

How can I optimize the performance of my 7G-Tronic transmission?

To optimize the 7G-Tronic transmission, ensure regular maintenance, including fluid and filter changes. Use the recommended transmission fluid specified by Mercedes-Benz. Avoid aggressive driving, which can cause excessive wear. Keep the transmission software updated to benefit from performance improvements and bug fixes. Regularly inspect for leaks or damage to maintain smooth and efficient operation.

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 Transmission Service Manual

Coming Soon

Detailed guide covering maintenance, troubleshooting, and repair procedures for the 7G-Tronic transmission.

Technical Service Bulletin for 7G-Tronic Transmission Updates

Coming Soon

Information on software updates and common issues for the 7G-Tronic transmission in 2016-2019 Mercedes GLS models.

Mercedes-Benz Transmission Parts Catalog

Coming Soon

Comprehensive catalog of genuine parts and accessories for the 7G-Tronic 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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About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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