Mercedes-Benz Mercedes G-Class 1979-2018 Drivetrain Specifications
Explore comprehensive drivetrain specifications for the 1979-2018 Mercedes-Benz G-Class. Learn about transmission types, differential systems, transfer cases, and axle configurations to better understand your vehicle's performance and maintenance needs.
Overview Specifications
This document provides a detailed overview of the drivetrain specifications for the Mercedes-Benz G-Class models produced between 1979 and 2018. It is designed to help enthusiasts, technicians, and researchers quickly access technical details about the G-Class drivetrain. The document is organized into sections covering major drivetrain components, with subsections detailing specific features and specifications. Use the search and navigation instructions to find the information you need efficiently.
How to Use
Use the search functionality to find specific terms or phrases within the document. Enter keywords related to the drivetrain component or specification you are looking for, and the document will highlight relevant sections.
Navigate through the document using the section titles and subsections. Each major section is dedicated to a specific drivetrain component, and subsections provide detailed technical information. Use the table of contents or scroll through the document to locate the desired information.
Key Specifications
Transmission Types
Manual, Automatic
Transfer Case Types
Mechanical, Electronic
Axle Configuration
Solid Axles
Differential Locks
Front, Center, Rear
Gear Ratios
Varies by Model
Available Specifications
Transmission Systems
This section covers the various transmission systems used in the Mercedes-Benz G-Class from 1979 to 2018. It includes details on manual and automatic transmissions, gear ratios, and transmission control systems.
Transmission Systems
This section covers the various transmission systems used in the Mercedes-Benz G-Class from 1979 to 2018. It includes details on manual and automatic transmissions, gear ratios, and transmission control systems.
Manual Transmissions
- 4-speed manual transmission (1979-1990)
- 5-speed manual transmission (1991-2018)
- Gear ratios optimized for off-road performance
- Dual-range transfer case for low and high gears
Automatic Transmissions
- 4-speed automatic transmission (1980-1990)
- 5-speed automatic transmission (1991-2005)
- 7-speed automatic transmission (2006-2018)
- Adaptive shift logic for improved performance
Transfer Cases
This section provides information on the transfer cases used in the G-Class, which are critical for distributing power between the front and rear axles. It includes details on mechanical and electronic transfer cases.
Transfer Cases
This section provides information on the transfer cases used in the G-Class, which are critical for distributing power between the front and rear axles. It includes details on mechanical and electronic transfer cases.
Mechanical Transfer Cases
- Standard mechanical transfer case (1979-1990)
- Locking differentials for improved traction
- 2-speed transfer case with low-range gearing
- Durable construction for off-road use
Electronic Transfer Cases
- Electronic transfer case introduced in 1991
- Push-button control for 4WD engagement
- Torque distribution based on driving conditions
- Integrated with vehicle stability systems
Axles and Differentials
This section details the axle and differential configurations used in the G-Class, which are essential for its off-road capabilities. It includes information on solid axles, differential locks, and axle ratios.
Axles and Differentials
This section details the axle and differential configurations used in the G-Class, which are essential for its off-road capabilities. It includes information on solid axles, differential locks, and axle ratios.
Solid Axles
- Front and rear solid axles for durability
- High ground clearance for off-road use
- Axle ratios optimized for torque
- Reinforced axle housings for heavy-duty use
Differential Locks
- Standard front, center, and rear differential locks
- Electronically controlled differential locks (1991-2018)
- Automatic engagement in low-traction conditions
- Manual override for driver control
Search Specifications
Search by specification name, value, or description
Type to search through torque specifications. Results will appear below as you type.
Component Specifications
Overview
- Type
- Four-wheel drive (4WD)
- Configuration
- Full-time 4WD with low-range transfer case
- Platform
- Ladder frame
- Material
- High-strength steel
- Location
- Central longitudinal
Dimensions
- Transfer Case Length
- 12.6 inches (320 mm)
- Driveshaft Diameter
- 3.15 inches (80 mm)
- Axle Width
- 65.7 inches (1668 mm)
- Differential Gear Ratio
- 3.73:1
- Propeller Shaft Length
- 47.2 inches (1200 mm)
- Ground Clearance
- 8.3 inches (210 mm)
- Approach Angle
- 36 degrees
Materials
- Differential Housing
- Cast iron
- Driveshaft
- High-strength steel
- Transfer Case
- Aluminum alloy
- Axles
- Forged steel
- Gears
- Case-hardened steel
Features
- Drivetrain Modes
-
- 2H (Two-wheel drive high range)
- 4H (Four-wheel drive high range)
- 4L (Four-wheel drive low range)
- Neutral (for towing)
- Differential Locks
-
- Center differential lock
- Rear differential lock
- Front differential lock
- Traction Control
-
- Electronic Traction System (ETS)
- Anti-lock Braking System (ABS)
- Downhill Speed Regulation (DSR)
- Suspension
-
- Independent front suspension
- Solid rear axle
- Coil springs
- Stabilizer bars
- Transmission
-
- 7-speed automatic
- Manual shifting mode
- Adaptive shift logic
Safety Features
- Stability Control
-
- Electronic Stability Program (ESP)
- Roll Over Mitigation
- Braking
-
- Hill Start Assist
- Hydraulic Brake Assist
- Off-Road
-
- Descent Control
- Traction Control
Comfort Features
- Driving Modes
-
- Comfort
- Sport
- Eco
- Off-road
- Noise Reduction
-
- Acoustic insulation
- Vibration dampers
- Suspension
-
- Adaptive damping system
- Air suspension
- Steering
-
- Electric power steering
- Variable steering ratio
Accessories
- Upgrades
-
- Heavy-duty skid plates
- Reinforced driveshaft
- Upgraded differential covers
- Protection
-
- Underbody armor
- Axle guards
- Transfer case shield
- Performance
-
- Limited-slip differential
- High-performance gear oil
- Upgraded suspension components
Maintenance
- Service interval
- Every 10,000 miles or 12 months
- Service Items
-
- Check and replace differential fluid
- Inspect driveshaft for wear
- Lubricate universal joints
- Check transfer case fluid
- Inspect axle seals
- Maintenance Notes
- Use only manufacturer-recommended fluids and lubricants
Warranty
- Basic Warranty
- Miles: 50,000Years: 4Coverage: Bumper to bumper
- Powertrain Warranty
- Miles: 100,000Years: 7Coverage: Drivetrain components
- Corrosion Warranty
- Miles: UnlimitedYears: 30Coverage: Perforation only
- Roadside Assistance
- Miles: UnlimitedYears: 4Coverage: 24/7 support
Production Details
- Manufacturer
- Mercedes-Benz
- Manufacturing Process
-
- Precision casting
- CNC machining
- Heat treatment
- Quality testing
- Quality Control
- inspection: 100% component testingStandards: ISO 9001 certifiedTesting: Dynamic load testing
- Sustainability Practices
-
- Recycled materials
- Energy-efficient production
- Waste reduction programs
- Production Metrics
- Annual Output: 20,000 unitsProduction Time: 8 hours per drivetrain
Service Information for drivetrain Service
Maintenance and service requirements specific to this component
- Inspect driveshaft for wear
- Check differential fluid level
- Lubricate universal joints
- Inspect axle seals
- Check transfer case fluid
Use only manufacturer-recommended fluids
- Replace differential fluid
- Inspect driveshaft alignment
- Check transfer case for leaks
- Inspect suspension components
- Test traction control system
Special tools required for differential service
- Replace transfer case fluid
- Inspect and replace driveshaft if necessary
- Check and adjust differential backlash
- Inspect and replace axle seals
- Perform full drivetrain diagnostics
Critical to check for wear on high-mileage components
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications of the drivetrain for the 1979-2018 Mercedes G-Class?
What are the technical specifications of the drivetrain for the 1979-2018 Mercedes G-Class?
The drivetrain for the 1979-2018 Mercedes G-Class includes a permanent all-wheel drive system with a two-speed transfer case, front and rear differential locks, and a low-range gearbox for off-road capability. The G-Class models feature various engine options, including diesel and gasoline engines, with power outputs ranging from 88 kW (118 hp) to 450 kW (603 hp). Compatibility varies by year and model, so it's essential to refer to the specific technical documentation for accurate details.
Q2 What are the maintenance requirements for the G-Class drivetrain?
What are the maintenance requirements for the G-Class drivetrain?
Regular maintenance for the G-Class drivetrain includes checking and replacing the transfer case and differential fluids every 30,000 to 60,000 miles, inspecting the driveshaft and CV joints for wear, and ensuring the differential locks function correctly. It's also crucial to monitor the condition of the suspension components, as they directly impact drivetrain performance. Adhering to the manufacturer’s maintenance schedule ensures optimal performance and longevity.
Q3 How do I replace the drivetrain components in a Mercedes G-Class?
How do I replace the drivetrain components in a Mercedes G-Class?
Replacing drivetrain components in a Mercedes G-Class involves several steps: First, lift the vehicle securely and remove the wheels. Disconnect the driveshaft and transfer case linkages. Drain the fluids from the transfer case and differentials. Remove the old components and install the new ones, ensuring proper alignment and torque specifications. Refill with the recommended fluids and test the system for proper operation. Always refer to the service manual for detailed instructions.
Q4 What are common troubleshooting steps for G-Class drivetrain issues?
What are common troubleshooting steps for G-Class drivetrain issues?
Common drivetrain issues in the G-Class include unusual noises, vibrations, or difficulty engaging the differential locks. Start by inspecting the driveshaft and CV joints for damage. Check the fluid levels and condition in the transfer case and differentials. If the differential locks are malfunctioning, inspect the electrical connections and actuators. For persistent issues, a diagnostic scan tool can help identify specific faults in the drivetrain system.
Q5 How can I optimize the performance of the G-Class drivetrain?
How can I optimize the performance of the G-Class drivetrain?
To optimize the G-Class drivetrain, ensure regular maintenance, including fluid changes and component inspections. Upgrade to high-performance fluids and consider aftermarket enhancements like reinforced driveshafts or heavy-duty differentials. Properly inflate tires and maintain suspension components to reduce strain on the drivetrain. For off-road use, engage the low-range gearbox and differential locks appropriately to maximize traction and control.
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 G-Class Service Manual
Coming SoonComprehensive guide covering maintenance, repair, and technical specifications for the 1979-2018 G-Class models.
G-Class Technical Service Bulletin
Coming SoonLatest updates and fixes for common drivetrain issues in the G-Class, including recalls and service recommendations.
G-Class Parts and Accessories Catalog
Coming SoonDetailed catalog of OEM and aftermarket parts for the G-Class drivetrain and other components.
About the Author
Expert automotive knowledge and experience
'/%3E%3Cpath d='M60 30a20 20 0 1 1 0 40 20 20 0 0 1 0-40zm0 45c16.5 0 30 7.5 30 16.8V100H30v-8.2c0-9.3 13.5-16.8 30-16.8z' fill='%23404040'/%3E%3C/svg%3E)
Diagnostic
Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.
Repair
Expert in both traditional mechanical repairs and modern vehicle systems.
Additional Expertise
Documentation
Created over 500 detailed repair guides and technical documents.
Training
Conducted technical training sessions and contributed to repair databases.
Certifications & Research
Certifications
- ASE Master Technician Certification
- Advanced Diagnostic Specialist
- Hybrid/Electric Vehicle Systems
- Performance Tuning Expert
Research & Community
Actively researches emerging technologies and contributes to automotive forums.
Legal Disclaimer
Important information about using this content
Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.
General Information
Warranty & Liability
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.