Mercedes-Benz Mercedes GLB 2019-present

Mercedes-Benz Mercedes GLB 2019-present 7G-TRONIC Transmission Specifications

This document provides a detailed overview of the 7G-Tronic transmission specifications for the 2019-Present Mercedes GLB. It includes technical details such as gear ratios, torque capacity, shift patterns, and fluid requirements. The purpose of this document is to assist automotive enthusiasts, technicians, and owners in understanding the transmission's design, performance capabilities, and maintenance needs. By providing accurate and comprehensive information, this guide serves as a valuable resource for diagnosing issues, performing upgrades, or ensuring proper servicing of the 7G-Tronic transmission. Whether you're a professional mechanic or a DIY enthusiast, this specification guide will help you maximize the performance and longevity of your Mercedes GLB's transmission system.

Updated Jan 23, 2025

Overview Specifications

This document provides detailed specifications and technical information about the 7G-TRONIC transmission used in the 2019-Present Mercedes GLB. It is designed to help users understand the transmission's features, performance, and maintenance requirements. Use the search and navigation instructions to quickly find relevant information. The document is divided into sections covering key aspects of the transmission, with subsections providing in-depth details.

How to Use

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Key Specifications

▲

Number of Gears

■

Transmission Type

Automatic

●

Maximum Torque Capacity

700 Nm

◆

Weight

86 kg

★

Fluid Capacity

7.5 liters

Available Specifications

Transmission Design

This section covers the design and architecture of the 7G-TRONIC transmission, including its components and layout. It provides insights into how the transmission is engineered for performance and durability.

Gear Configuration

7-speed automatic transmission
Wet clutch system for smooth shifting
Compact design for efficient packaging
Adaptive shift logic for optimized performance
Torque converter with lock-up clutch
Integrated hydraulic control unit

Material and Construction

High-strength aluminum housing
Precision-machined gears for durability
Advanced friction materials for longevity
Sealed components for reduced maintenance
Lightweight design for improved fuel efficiency
Corrosion-resistant coatings

Performance Features

This section highlights the performance characteristics of the 7G-TRONIC transmission, including its responsiveness, efficiency, and driving dynamics.

Shift Dynamics

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 enhancements
Reduced shift shock and noise

Efficiency and Fuel Economy

Optimized gear ratios for fuel efficiency
Start-stop functionality integration
Reduced internal friction for energy savings
Eco mode for lower emissions
Efficient thermal management system
Lightweight components for reduced energy consumption

Maintenance and Durability

This section provides information on maintaining the 7G-TRONIC transmission, including service intervals, common issues, and durability features.

Service Requirements

Recommended fluid change every 60,000 miles
Sealed transmission for reduced maintenance
Diagnostic software for early issue detection
Lifetime fill for certain components
Regular inspection of mounts and linkages
Software updates for performance optimization

Durability Features

Robust design for high mileage reliability
Enhanced cooling system for temperature control
Protective coatings for wear resistance
Sealed electronics for moisture protection
High-quality seals and gaskets
Tested under extreme conditions for durability

Search Specifications

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Transmission Specifications

Overview

Type: Automatic Transmission

Configuration: 7-speed with torque converter

Platform: Mercedes-Benz MFA2

Material: Aluminum alloy casing

Location: Front-engine, longitudinal

Dimensions

Length: 28.5 inches (724 mm)

Width: 22.8 inches (579 mm)

Height: 18.1 inches (460 mm)

Weight: 187 lbs (85 kg)

input Shaft Diameter: 1.2 inches (30 mm)

Output Shaft Diameter: 1.4 inches (35 mm)

Fluid Capacity: 7.4 quarts (7 liters)

Materials

Casing: Aluminum alloy

Gears: Case-hardened steel

Clutch Packs: Carbon fiber composite

Torque Converter: Aluminum and steel composite

Features

Shifting

Adaptive shift logic
Manual mode with paddle shifters
Smooth gear transitions
Eco mode for fuel efficiency

Performance

Quick response times
Optimized for high torque engines
Dynamic gear ratio adjustments
Sport mode for enhanced acceleration

integration

Seamless integration with 4MATIC all-wheel drive
Compatible with hybrid systems
Integrated with Mercedes-Benz DYNAMIC SELECT
Supports start-stop functionality

Durability

High-temperature resistance
Corrosion-resistant materials
Long service intervals
Robust construction for heavy-duty use

Technology

Electronic control unit (ECU) integration
Predictive shifting based on navigation data
Adaptive learning for driver behavior
Remote diagnostics capability

Safety Features

Fail Safe

Emergency limp-home mode
Automatic neutral in case of failure

Protection

Overheat protection
Overload protection

Monitoring

Real-time transmission temperature monitoring
Fluid level and pressure sensors

Comfort Features

Noise Reduction

Acoustic damping materials
Smooth torque converter engagement

Vibration Control

Balanced rotating components
Isolated mounting points

Driving Modes

Comfort mode for smooth driving
Sport mode for dynamic performance
Individual mode for custom settings

User Experience

Intuitive gear selection
Quiet operation at all speeds
Seamless integration with infotainment system

Accessories

Upgrades

Performance transmission fluid
Enhanced cooling systems
Custom shift paddles

Tools

Diagnostic scan tool
Transmission fluid exchange kit
Specialized service tools

Maintenance

Transmission fluid filter kit
Gasket and seal replacement kit
Torque converter service kit

Maintenance

Service interval: Every 40,000 miles or 48 months

Service Items

Transmission fluid and filter replacement
Torque converter inspection
Seal and gasket inspection
Shift solenoid testing
ECU software update

Maintenance Notes: Use only Mercedes-Benz approved transmission fluid for optimal performance.

Warranty

Basic: Miles: 50,000
Years: 4
Coverage: Parts and labor for defects

Powertrain: Miles: 100,000
Years: 7
Coverage: Transmission components

Corrosion: Miles: Unlimited
Years: 12
Coverage: Perforation from corrosion

Extended: Miles: 120,000
Years: 10
Coverage: Optional extended coverage for transmission

Production Details

Manufacturer: Mercedes-Benz AG

Manufacturing Process

Precision CNC machining
Automated assembly lines
Laser welding for critical components

Quality Control: inspection: 100% component testing
Testing: Dynamic load testing
Certification: ISO 9001 certified

Sustainability Practices

Recycled materials in non-critical components
Energy-efficient manufacturing processes
Waste reduction initiatives

Production Metrics: Annual Output: 500,000 units
Defect Rate: Less than 0.1%
Lead Time: 4 weeks

Service Information for 7g tronic transmission Service

Maintenance and service requirements specific to this component

40,000

Transmission fluid and filter replacement
Torque converter inspection
Seal and gasket inspection
Shift solenoid testing
ECU software update

Use only Mercedes-Benz approved transmission fluid for optimal performance.

80,000

Comprehensive transmission inspection
Fluid flush and replacement
Valve body inspection
Clutch pack wear analysis
Performance testing

Special tools required for valve body inspection.

120,000

144

Complete transmission overhaul
Torque converter replacement
Seal and gasket replacement
Shift solenoid replacement
Performance recalibration

Critical to replace all wear components during major service.

Common Questions

Find answers to common questions about torque specifications

Is the 7G-Tronic transmission compatible with all 2019-Present Mercedes GLB models?

The 7G-Tronic transmission is compatible with most 2019-Present Mercedes GLB models, particularly those equipped with gasoline or diesel engines. However, compatibility may vary for hybrid or AMG variants, which often use different transmission systems. Always verify your vehicle's specifications using the VIN or consult a Mercedes-Benz dealer for confirmation.

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

The 7G-Tronic transmission requires regular maintenance, including fluid and filter changes every 60,000 to 80,000 miles. Inspect for leaks, wear, and software updates during routine service. Adhering to Mercedes-Benz's recommended maintenance schedule ensures optimal performance and longevity. Neglecting maintenance can lead to shifting issues or transmission failure.

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

Replacing the 7G-Tronic transmission involves disconnecting the battery, removing the transmission mounts, and detaching the driveshaft and wiring harness. Use a transmission jack to safely lower and remove the old unit. Install the new transmission, ensuring proper alignment and torque specifications. Reconnect all components and refill with the recommended transmission fluid. Professional installation is recommended.

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

If your 7G-Tronic transmission is not shifting smoothly, check the transmission fluid level and condition. Low or degraded fluid can cause shifting issues. Inspect for error codes using a diagnostic tool. Common solutions include fluid replacement, software updates, or repairing worn components like solenoids or sensors. Consult a certified technician for complex issues.

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

To optimize the 7G-Tronic transmission, use Mercedes-Benz-approved transmission fluid and ensure regular maintenance. Avoid aggressive driving and allow the transmission to warm up in cold weather. Consider software updates from a Mercedes-Benz dealer to improve shifting logic and efficiency. Properly inflated tires and a well-maintained drivetrain also enhance performance.

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

This manual provides detailed instructions for servicing and maintaining the 7G-Tronic transmission, including fluid changes, diagnostics, and repair procedures.

Technical Service Bulletin for 7G-Tronic Transmission Updates

Coming Soon

This bulletin outlines software updates and technical improvements for the 7G-Tronic transmission to address common issues and enhance performance.

Mercedes-Benz GLB Transmission Parts Catalog

Coming Soon

This catalog lists all compatible parts and accessories for the 7G-Tronic transmission in the Mercedes GLB, including seals, filters, and fluid specifications.

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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.
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Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
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