Mercedes-Benz Mercedes M-Class 2011-2015 Fuel System Specifications
Mercedes-Benz Mercedes M-Class 2011-2015

Mercedes-Benz Mercedes M-Class 2011-2015 Fuel System Specifications

Explore the detailed fuel specifications for the 2011-2015 Mercedes-Benz M-Class, including fuel type, octane rating, capacity, and consumption. Essential for maintenance, performance, and compliance with manufacturer standards.

Updated

Overview Specifications

This document provides detailed fuel specifications for the 2011-2015 Mercedes-Benz M-Class. It is designed to help users understand the fuel requirements, efficiency, and related technical details of these models. The information is organized into sections for easy navigation, and a quick reference guide is included for key specifications. Use the search and navigation instructions to find specific details efficiently.

How to Use

Use the search function to quickly locate specific fuel-related terms or specifications. Enter keywords like 'fuel type,' 'efficiency,' or 'capacity' to find relevant sections.

Navigate through the document using the section titles and subsections. Each major section focuses on a specific aspect of fuel specifications, and subsections provide detailed technical points.

Key Specifications

Fuel Type (Gasoline)

Premium Unleaded

Fuel Type (Diesel)

Ultra-Low Sulfur Diesel

Fuel Tank Capacity

26.4 gallons

EPA Highway MPG (Diesel)

28-30 MPG

Driving Range (Diesel)

600-700 miles

Available Specifications

Fuel Types and Compatibility

This section outlines the types of fuel compatible with the 2011-2015 Mercedes-Benz M-Class. It includes details on gasoline, diesel, and hybrid variants, as well as recommended fuel grades and additives.

Recommended Fuel Grades
  • Gasoline models: Use premium unleaded gasoline with an octane rating of 91 or higher.
  • Diesel models: Use ultra-low sulfur diesel (ULSD) with a cetane number of 48 or higher.
  • Hybrid models: Compatible with the same gasoline grades as non-hybrid variants.
  • Avoid using fuels with ethanol content above 10% to prevent engine damage.
Fuel Additives
  • Use Mercedes-Benz approved fuel additives for optimal performance.
  • Avoid aftermarket additives not certified by the manufacturer.
  • Additives can help maintain fuel system cleanliness and efficiency.

Fuel Efficiency and Consumption

This section provides detailed information on the fuel efficiency and consumption rates of the 2011-2015 Mercedes-Benz M-Class. It includes EPA estimates, real-world usage data, and tips for improving fuel economy.

EPA Fuel Economy Estimates
  • Gasoline models: 17-18 MPG city, 22-24 MPG highway.
  • Diesel models: 20-22 MPG city, 28-30 MPG highway.
  • Hybrid models: 21 MPG city, 25 MPG highway.
  • Actual mileage may vary based on driving conditions and habits.
Tips for Improved Fuel Economy
  • Maintain proper tire pressure to reduce rolling resistance.
  • Avoid aggressive driving, including rapid acceleration and braking.
  • Use cruise control on highways to maintain consistent speed.
  • Regularly service the engine and fuel system for optimal performance.

Fuel Tank Capacity and Range

This section covers the fuel tank capacity and estimated driving range for the 2011-2015 Mercedes-Benz M-Class. It includes details for both gasoline and diesel models.

Fuel Tank Capacity
  • Gasoline models: 26.4 gallons (100 liters).
  • Diesel models: 26.4 gallons (100 liters).
  • Hybrid models: 24.5 gallons (93 liters).
Estimated Driving Range
  • Gasoline models: 450-550 miles per tank.
  • Diesel models: 600-700 miles per tank.
  • Hybrid models: 500-600 miles per tank.
  • Range depends on driving conditions and fuel efficiency.

Component Specifications

Overview

Type
Gasoline/Diesel
Configuration
Direct Injection
Platform
M-Class SUV
Material
High-grade steel and plastic
Location
Integrated fuel system

Dimensions

Tank Capacity
21.1 gal (80 L)
Fuel Line Diameter
0.5 in (12.7 mm)
Fuel Pump Pressure
58 psi (4 bar)
Fuel Filter Size
3.15 x 2.36 in (80 x 60 mm)
injector Flow Rate
200 cc/min
Fuel Rail Length
15.7 in (400 mm)
Fuel Tank Weight
15.4 lbs (7 kg)

Materials

Fuel Tank
High-density polyethylene
Fuel Lines
Stainless steel with rubber coating
Fuel Pump
Aluminum and plastic composite
Fuel injectors
Stainless steel and ceramic
Fuel Filter
Cellulose and synthetic blend

Features

Fuel Delivery
  • High-pressure direct injection
  • Multi-point fuel system
  • Variable fuel pressure control
Efficiency
  • Start-stop technology
  • Eco mode optimization
  • Fuel consumption monitoring
Safety
  • Leak detection system
  • Automatic fuel shutoff
  • Impact-resistant fuel tank
Monitoring
  • Fuel level sensor
  • Real-time fuel economy display
  • Low fuel warning system
Maintenance
  • Easy-access fuel filter
  • Service reminder system
  • Self-diagnostic fuel pump

Safety Features

Crash Protection
  • Fuel tank impact resistance
  • Automatic fuel shutoff valve
Leak Prevention
  • Sealed fuel system
  • Leak detection sensors
Fire Prevention
  • Flame arrestor in fuel tank
  • Heat-resistant fuel lines

Comfort Features

Refueling
  • Capless fuel filler
  • Easy-access fuel door
Driving
  • Smooth fuel delivery
  • Quiet fuel pump operation
Monitoring
  • Accurate fuel gauge
  • Range estimation system
Maintenance
  • Simple filter replacement
  • Long service intervals

Accessories

Fuel Additives
  • Fuel system cleaner
  • Octane booster
  • Diesel additive
Upgrades
  • High-flow fuel pump
  • Performance fuel injectors
  • Upgraded fuel filter
Maintenance Tools
  • Fuel pressure tester
  • Fuel line disconnect tool
  • Injector cleaning kit

Maintenance

Service interval
10,000 miles or 12 months
Service Items
  • Inspect fuel lines for leaks
  • Replace fuel filter
  • Check fuel pump pressure
  • Clean fuel injectors
  • Inspect fuel tank for damage
Maintenance Notes
Use only recommended fuel types and additives.

Warranty

Basic Coverage
Miles: 50,000
Years: 4
Coverage: Fuel system components
Emissions Coverage
Miles: 70,000
Years: 7
Coverage: Fuel injection system
Corrosion Coverage
Miles: Unlimited
Years: 10
Coverage: Fuel tank corrosion
Extended Coverage
Miles: 100,000
Years: 8
Coverage: Fuel pump and injectors

Production Details

Manufacturer
Mercedes-Benz
Manufacturing Process
  • Robotic assembly
  • Precision engineering
  • Quality testing
Quality Control
Pressure Testing: Yes
Leak Testing: Yes
Material inspection: Yes
Sustainability Practices
  • Recyclable materials
  • Eco-friendly production
  • Reduced emissions
Production Metrics
Annual Output: 500,000 units
Defect Rate: < 0.1%
Energy Efficiency: 95%

Service Information for fuel Service

Maintenance and service requirements specific to the fuel system

10,000
12
  • Inspect fuel lines and connections
  • Check fuel filter condition
  • Test fuel pump pressure
  • Clean fuel injectors
  • Inspect fuel tank for leaks

Use only manufacturer-approved fuel additives.

20,000
24
  • Replace fuel filter
  • Inspect fuel pump operation
  • Check fuel injector spray pattern
  • Test fuel pressure regulator
  • Inspect fuel tank integrity

Ensure proper fuel system pressurization during testing.

50,000
60
  • Replace fuel pump if necessary
  • Replace fuel injectors if needed
  • Inspect and replace fuel lines
  • Test entire fuel system for leaks
  • Perform fuel system flush

Major service interval requires specialized tools and expertise.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What type of fuel is compatible with the 2011-2015 Mercedes M-Class?

The 2011-2015 Mercedes M-Class is compatible with premium unleaded gasoline with an octane rating of 91 or higher. Diesel models require ultra-low sulfur diesel (ULSD). Using the recommended fuel ensures optimal engine performance, fuel efficiency, and longevity. Avoid using lower-octane gasoline or non-recommended diesel, as it may cause engine knocking, reduced performance, or damage to the fuel system.

Q2

What are the maintenance requirements for the fuel system in the Mercedes M-Class?

The fuel system in the 2011-2015 Mercedes M-Class requires regular maintenance, including fuel filter replacement every 30,000 miles or as specified in the owner's manual. Inspect fuel lines and connections for leaks or wear annually. Use fuel system cleaners periodically to prevent carbon buildup. Adhering to the maintenance schedule ensures efficient fuel delivery and prevents potential engine issues.

Q3

How do I replace the fuel filter in a 2011-2015 Mercedes M-Class?

To replace the fuel filter, first, locate it under the vehicle near the fuel tank. Disconnect the negative battery terminal for safety. Relieve fuel system pressure by removing the fuel pump fuse and running the engine until it stalls. Disconnect fuel lines and electrical connectors, then remove the old filter. Install the new filter, reconnect lines and connectors, and restore battery power. Start the engine and check for leaks.

Q4

What should I do if my Mercedes M-Class has poor fuel economy?

If your Mercedes M-Class experiences poor fuel economy, check for clogged air filters, faulty oxygen sensors, or dirty fuel injectors. Ensure tires are properly inflated and alignment is correct. Use the recommended fuel grade and avoid excessive idling. If issues persist, scan for diagnostic trouble codes (DTCs) using an OBD-II scanner to identify specific problems.

Q5

How can I optimize fuel performance in my Mercedes M-Class?

To optimize fuel performance, use premium unleaded gasoline or ULSD as recommended. Regularly replace air and fuel filters, and keep the engine properly tuned. Maintain proper tire pressure and avoid carrying unnecessary weight. Drive smoothly, avoiding rapid acceleration and braking. Periodically use fuel system cleaners to remove deposits and improve combustion efficiency.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

2011-2015 Mercedes M-Class Owner's Manual

Coming Soon

Comprehensive guide covering vehicle operation, maintenance schedules, and technical specifications for the 2011-2015 Mercedes M-Class.

Technical Service Bulletin: Fuel System Updates

Coming Soon

Details updates and fixes for common fuel system issues in the 2011-2015 Mercedes M-Class, including software updates and component replacements.

Mercedes M-Class Parts and Accessories Catalog

Coming Soon

Catalog listing genuine parts and accessories for the 2011-2015 Mercedes M-Class, including fuel system components and performance upgrades.

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.