Mercedes-Benz Mercedes S-Class 2021-present Drivetrain Specifications
Mercedes-Benz Mercedes S-Class 2021-present

Mercedes-Benz Mercedes S-Class 2021-present Drivetrain Specifications

Explore the comprehensive drivetrain specifications for the 2021-Present Mercedes-Benz S-Class, including engine options, transmission details, and drivetrain configurations. Ideal for enthusiasts, buyers, and technicians.

Updated

Overview Specifications

This document provides detailed technical specifications and information about the drivetrain of the 2021-Present Mercedes S-Class. It is designed to assist users in understanding the vehicle's performance, components, and functionality. The content is organized into sections for easy navigation, with subsections offering in-depth details on specific aspects of the drivetrain. Use the search and navigation instructions to find the information you need efficiently.

How to Use

To search for specific terms or topics, use the search bar at the top of the page. Enter keywords related to the drivetrain, such as 'engine' or 'transmission,' and review the results for relevant sections.

Navigate through the document by scrolling or using the table of contents. Click on section titles to jump directly to that part of the document. Subsections are listed within each major section for quick access to detailed information.

Key Specifications

Engine Power

286 to 630 hp

Transmission

9-speed automatic

Torque

369 to 664 lb-ft

Drivetrain

RWD / AWD (4MATIC)

Fuel Efficiency

22 to 30 mpg (combined)

Available Specifications

Engine Specifications

This section covers the engine configurations available for the 2021-Present Mercedes S-Class, including power output, fuel efficiency, and technological innovations.

Engine Options
  • 3.0L inline-6 turbocharged petrol engine
  • 4.0L V8 biturbo petrol engine
  • 3.0L inline-6 turbocharged diesel engine
  • Plug-in hybrid variants with combined petrol-electric powertrains
  • Mild hybrid technology (EQ Boost) for all petrol engines
  • Power output ranging from 286 to 630 horsepower
Performance Features
  • EQ Boost adds 21 horsepower and 184 lb-ft of torque
  • Integrated Starter Generator (ISG) for smooth start-stop functionality
  • Advanced turbocharging for reduced turbo lag
  • Optimized combustion efficiency for better fuel economy
  • Engineered for low emissions and compliance with global standards

Transmission System

This section details the transmission system used in the Mercedes S-Class, focusing on its design, functionality, and how it enhances driving dynamics.

Transmission Type
  • 9G-TRONIC 9-speed automatic transmission
  • Seamless gear shifts for smooth acceleration
  • Adaptive shifting based on driving conditions
  • Manual shifting option via paddle shifters
  • Optimized for both performance and fuel efficiency
Driving Modes
  • Multiple driving modes: Eco, Comfort, Sport, and Individual
  • Adaptive transmission tuning for each mode
  • Sport mode enhances throttle response and gear shifts
  • Eco mode prioritizes fuel efficiency and smoother transitions

All-Wheel Drive System

This section explores the all-wheel drive (AWD) system available in the Mercedes S-Class, highlighting its benefits and technological features.

4MATIC AWD System
  • Standard on most S-Class models
  • Torque distribution between front and rear axles
  • Enhanced traction and stability in various road conditions
  • Intelligent control system for optimal performance
  • Reduced fuel consumption compared to traditional AWD systems
Performance Enhancements
  • Improved cornering and handling
  • Better grip on wet or slippery surfaces
  • Integration with ESP and other safety systems
  • Adaptive AWD tuning based on driving mode

Component Specifications

Overview

Type
All-wheel drive (4MATIC)
Configuration
Front-engine, rear-wheel bias
Platform
MRA (Modular Rear Architecture)
Material
High-strength steel and aluminum
Location
Underbody, longitudinally mounted

Dimensions

Transmission Length
28.7 inches (729 mm)
Driveshaft Diameter
3.15 inches (80 mm)
Axle Width
63.8 inches (1620 mm)
Transfer Case Weight
98.5 lbs (44.7 kg)
Differential Ratio
2.65:1
Propeller Shaft Length
55.1 inches (1400 mm)
Torque Tube Diameter
4.72 inches (120 mm)

Materials

Driveshaft
Carbon fiber reinforced polymer
Differential Housing
Aluminum alloy
Axles
High-strength forged steel
Transfer Case
Magnesium alloy
Torque Tube
Aluminum with vibration damping

Features

Propulsion
  • 4MATIC all-wheel drive system
  • Torque vectoring
  • Electronic differential lock
  • Adaptive torque distribution
Transmission
  • 9G-TRONIC automatic transmission
  • Shift-by-wire technology
  • Manual shift mode
  • Eco start/stop function
Suspension
  • Air suspension with adaptive damping
  • Dynamic body control
  • Self-leveling system
  • Curve tilt function
Performance
  • Sport+ driving mode
  • Launch control
  • Rear-wheel steering
  • Dynamic select system
Efficiency
  • Mild hybrid system (EQ Boost)
  • Coasting function
  • Energy recovery system
  • Eco driving mode

Safety Features

Traction Control
  • Electronic Stability Program (ESP)
  • Anti-lock Braking System (ABS)
  • Traction control system (ASR)
Driving Assistance
  • Active Distance Assist DISTRONIC
  • Active Steering Assist
  • Active Lane Keeping Assist
Structural Safety
  • Reinforced drivetrain mounts
  • Crash-optimized driveshaft
  • Protected fuel lines

Comfort Features

Noise Reduction
  • Acoustic insulation
  • Vibration-damping mounts
  • Silent-coated driveshaft
Driving Modes
  • Comfort mode
  • Eco mode
  • Individual mode
Suspension Comfort
  • Adaptive air suspension
  • Road surface scan
  • Speed-sensitive damping

Accessories

Performance Upgrades
  • Sport exhaust system
  • High-performance differential
  • Upgraded driveshaft
Protection
  • Underbody protection plate
  • Drivetrain guard
  • Axle seal protectors
Maintenance
  • Drivetrain service kit
  • Fluid change package
  • Diagnostic tool

Maintenance

Service interval
10,000 miles or 12 months
Service Items
  • Transmission fluid check
  • Differential oil change
  • Driveshaft inspection
  • Transfer case service
  • Axle boot inspection
Maintenance Notes
Use only Mercedes-Benz approved fluids and lubricants

Warranty

Basic Warranty
Years: 4
Miles: 50000
Coverage: Drivetrain components
Powertrain Warranty
Years: 4
Miles: 50000
Coverage: Engine, transmission, and drivetrain
Corrosion Warranty
Years: 12
Miles: Unlimited
Coverage: Drivetrain components
Extended Warranty
Years: 7
Miles: 100000
Coverage: Optional extended drivetrain coverage

Production Details

Manufacturer
Mercedes-Benz AG
Manufacturing Process
  • Precision CNC machining
  • Automated assembly
  • Laser welding
  • Computerized balancing
Quality Control
Testing: Durability testing, Vibration analysis, Thermal cycling
Standards: ISO 9001, ISO 14001, IATF 16949
Sustainability Practices
  • Recycled aluminum usage
  • Energy-efficient manufacturing
  • Waste reduction programs
Production Metrics
Units Per Day: 250
Production Time: 8 hours per drivetrain
Defect Rate: 0.01%

Service Information for drivetrain Service

Maintenance and service requirements specific to this component

10000
12
  • Inspect drivetrain mounts
  • Check transmission fluid level
  • Inspect driveshaft for wear
  • Verify differential oil level
  • Check axle boots for damage

Use only Mercedes-Benz approved fluids

30000
36
  • Change differential oil
  • Inspect transfer case
  • Check propeller shaft alignment
  • Lubricate universal joints
  • Verify drivetrain software updates

Special tools required for differential service

60000
60
  • Replace transmission fluid
  • Service transfer case
  • Inspect and balance driveshaft
  • Check drivetrain mounts
  • Complete drivetrain diagnostic

Major service requiring specialized equipment

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What is the drivetrain compatibility for the 2021-Present Mercedes S-Class?

The 2021-Present Mercedes S-Class features a 9G-TRONIC automatic transmission, compatible with both rear-wheel drive (RWD) and 4MATIC all-wheel drive (AWD) systems. The drivetrain supports engine options ranging from the inline-6 to the V8, ensuring seamless integration with various powertrains. Always verify compatibility with your specific model and trim level to ensure optimal performance.

Q2

What are the maintenance requirements for the S-Class drivetrain?

The Mercedes S-Class drivetrain requires regular maintenance to ensure longevity. This includes transmission fluid and filter changes every 60,000 to 80,000 miles, inspection of the driveshaft and differential every 30,000 miles, and routine checks for leaks or unusual noises. Adhering to the manufacturer’s service schedule is crucial to maintain drivetrain efficiency and prevent costly repairs.

Q3

How do I install or replace the drivetrain components in the S-Class?

Replacing drivetrain components in the S-Class involves several steps: 1) Lift the vehicle securely using a hydraulic lift. 2) Remove the underbody panels to access the drivetrain. 3) Disconnect the driveshaft, transmission, and differential as needed. 4) Install new components, ensuring proper torque specifications and alignment. 5) Reassemble and test the system. Professional installation is recommended for optimal results.

Q4

What are common troubleshooting steps for S-Class drivetrain issues?

Common drivetrain issues include vibrations, noises, or poor performance. Start by inspecting the driveshaft for balance and alignment. Check the transmission fluid level and quality. Examine the differential for leaks or wear. Use diagnostic tools to scan for error codes. If issues persist, consult a certified technician for a detailed inspection and repair.

Q5

How can I optimize the performance of the S-Class drivetrain?

To optimize drivetrain performance, ensure regular maintenance, including fluid changes and component inspections. Use high-quality transmission fluid and lubricants. Avoid aggressive driving habits that strain the system. Consider upgrading to performance parts like a limited-slip differential or reinforced driveshaft for enhanced handling and power delivery. Always follow the manufacturer’s recommendations for modifications.

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 S-Class Service Manual

Coming Soon

Comprehensive guide covering maintenance, repair, and technical specifications for the 2021-Present S-Class drivetrain.

Technical Service Bulletin: Drivetrain Updates

Coming Soon

Latest updates and fixes for the S-Class drivetrain, including software enhancements and hardware improvements.

Mercedes S-Class Parts Catalog

Coming Soon

Detailed catalog of drivetrain components, including part numbers, descriptions, and compatibility information.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

15+ Years
Experience
500+ Guides
Guides
50+ Makes
Vehicles
1000+ Solutions
Solutions

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
The information provided on this website is for general informational purposes only. While we strive to maintain accuracy in our content, all specifications, procedures, and technical information should be verified against your vehicle's official service manual or with the manufacturer directly.
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.
Intellectual Property
All content, including text, images, and specifications, is protected by copyright and other intellectual property laws. Any unauthorized use or reproduction is prohibited.

© 2025 Mercedes-Benz Specs. All rights reserved.