Mercedes-Benz Mercedes S-Class 2014-2020 Fuel System Specifications
Mercedes-Benz Mercedes S-Class 2014-2020

Mercedes-Benz Mercedes S-Class 2014-2020 Fuel System Specifications

Explore the detailed fuel specifications for the 2014-2020 Mercedes S-Class, including fuel type, tank capacity, efficiency, and emission standards. Essential for owners, technicians, and enthusiasts.

Updated

Overview Specifications

This document provides detailed fuel specifications for the 2014-2020 Mercedes-Benz S-Class. It includes information on fuel types, efficiency, tank capacity, and engine performance. Use this guide to understand the vehicle's fuel-related features and make informed decisions. The sections are organized to help you quickly find the information you need.

How to Use

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

Navigate through the document using the section titles and descriptions. Click on a section to view its subsections and detailed points for in-depth information.

Key Specifications

Fuel Types

Gasoline, Diesel, Hybrid

Gasoline Efficiency

17-30 mpg

Diesel Efficiency

22-35 mpg

Fuel Tank Capacity

17.4-22.5 gallons

Hybrid Range

Up to 600 miles

Available Specifications

Fuel Types and Compatibility

This section covers the types of fuel compatible with the 2014-2020 Mercedes-Benz S-Class. It includes details on gasoline, diesel, and hybrid options, along with their respective benefits and engine specifications.

Gasoline Engines
  • Supports premium unleaded gasoline (91 octane or higher)
  • Optimal performance with 93 octane fuel
  • Available in V6 and V8 engine configurations
  • Direct injection technology for improved efficiency
  • Reduced emissions with advanced catalytic converters
  • Fuel additives not required but recommended
Diesel Engines
  • Compatible with ultra-low sulfur diesel (ULSD)
  • Equipped with BlueTEC emissions control system
  • Turbocharged for enhanced power and efficiency
  • Improved fuel economy compared to gasoline engines
  • AdBlue fluid required for emissions reduction
Hybrid Options
  • Combines gasoline engine with electric motor
  • Regenerative braking system for energy recovery
  • Plug-in hybrid variants available
  • Reduced fuel consumption in city driving
  • Electric-only mode for short distances

Fuel Efficiency and Consumption

This section provides detailed information on the fuel efficiency and consumption rates of the 2014-2020 Mercedes-Benz S-Class. It includes data for different engine types and driving conditions.

Gasoline Efficiency
  • V6 engine: 20 mpg city / 30 mpg highway
  • V8 engine: 17 mpg city / 26 mpg highway
  • Eco Mode for improved fuel savings
  • Start-stop technology reduces idling consumption
  • Aerodynamic design enhances efficiency
Diesel Efficiency
  • 22 mpg city / 35 mpg highway
  • Longer range per tank compared to gasoline
  • Efficient turbocharging system
  • Low rolling resistance tires for better mileage
Hybrid Efficiency
  • Combined fuel economy: 50 mpg equivalent
  • Electric-only range: up to 15 miles
  • Regenerative braking enhances efficiency
  • Energy monitoring system for optimal usage

Fuel Tank Capacity and Range

This section details the fuel tank capacity and estimated driving range for the 2014-2020 Mercedes-Benz S-Class. It includes data for gasoline, diesel, and hybrid models.

Gasoline Models
  • Fuel tank capacity: 21.1 gallons
  • Estimated range: up to 550 miles
  • V6 engine offers longer range per tank
  • Low fuel warning at approximately 2.5 gallons
Diesel Models
  • Fuel tank capacity: 22.5 gallons
  • Estimated range: up to 750 miles
  • Efficient consumption extends range
  • AdBlue tank capacity: 5 gallons
Hybrid Models
  • Fuel tank capacity: 17.4 gallons
  • Combined range: up to 600 miles
  • Electric-only range: up to 15 miles
  • Charging time: 2 hours with Level 2 charger

Component Specifications

Overview

Type
Gasoline/Diesel
Configuration
Direct Injection
Platform
MRA (Modular Rear Architecture)
Material
High-grade steel and aluminum
Location
Rear-mounted fuel tank

Dimensions

Tank Capacity
80 liters / 21.13 gallons
Fuel Line Length
4.5 meters / 14.76 feet
Fuel Pump Pressure
5 bar / 72.52 psi
injector Spray Angle
90 degrees
Fuel Filter Size
150 mm x 60 mm / 5.91 in x 2.36 in
Tank Weight
12 kg / 26.46 lbs (empty)
Fuel Line Diameter
8 mm / 0.31 in

Materials

Tank
High-density polyethylene
Fuel Lines
Nylon with steel reinforcement
Fuel Pump
Stainless steel and plastic composite
injectors
Stainless steel with ceramic tips
Filter
Cellulose and synthetic fibers

Features

Efficiency
  • Start-stop system
  • ECO mode
  • Variable fuel pressure
  • Optimized injection timing
Performance
  • High-pressure direct injection
  • Turbocharging support
  • Adaptive fuel mapping
  • Dynamic fuel delivery
Safety
  • Fuel tank impact protection
  • Leak detection system
  • Automatic fuel cut-off
  • Fire suppression design
Environmental
  • Low evaporative emissions
  • Compatible with biofuels
  • Recyclable materials
  • Reduced CO2 emissions
Technology
  • Electronic fuel management
  • On-board diagnostics (OBD)
  • Fuel level sensor
  • Adaptive fuel pump control

Safety Features

Tank Protection
  • Crash-resistant design
  • Rollover valve
  • Impact sensors
Leak Prevention
  • Double-walled fuel lines
  • Automatic shut-off valve
  • Leak detection system
Fire Safety
  • Fire-resistant materials
  • Automatic fuel cut-off
  • Heat shielding

Comfort Features

Refueling
  • Easy-access fuel cap
  • Automatic fuel door
  • Fuel level indicator
Noise Reduction
  • Quiet fuel pump
  • Insulated fuel lines
  • Vibration dampening
Maintenance
  • Easy-access fuel filter
  • Self-diagnostic system
  • Long service intervals
Driving Experience
  • Smooth fuel delivery
  • Consistent performance
  • Adaptive fuel mapping

Accessories

Upgrades
  • High-performance fuel pump
  • Upgraded fuel injectors
  • Larger fuel tank
Maintenance Tools
  • Fuel pressure tester
  • Fuel line disconnect tool
  • Filter wrench
Protection
  • Fuel tank skid plate
  • Fuel line heat shield
  • Fuel additive package

Maintenance

Service interval
10,000 miles / 12 months
Service Items
  • Fuel filter replacement
  • Fuel system inspection
  • Fuel pump test
  • Injector cleaning
  • Leak detection check
Maintenance Notes
Use only recommended fuel types and additives for optimal performance.

Warranty

Basic
Years: 4
Miles: 50000
Coverage: Fuel pump and injectors
Powertrain
Years: 6
Miles: 70000
Coverage: Fuel system components
Corrosion
Years: 12
Miles: 100000
Coverage: Fuel tank and lines
Emissions
Years: 8
Miles: 80000
Coverage: Fuel system emissions components

Production Details

Manufacturer
Mercedes-Benz
Manufacturing Process
  • Automated assembly
  • Precision machining
  • Quality testing
Quality Control
Pressure Testing: Pass/Fail
Leak Testing: Pass/Fail
Material inspection: Certified
Sustainability Practices
  • Recyclable materials
  • Energy-efficient production
  • Reduced emissions
Production Metrics
Units Per Day: 500
Defect Rate: 0.1%
Energy Usage: 15 kWh per unit

Service Information for fuel Service

Maintenance and service requirements specific to the fuel system

10000
12
  • Inspect fuel lines for leaks
  • Check fuel filter condition
  • Test fuel pump pressure
  • Clean fuel injectors
  • Verify fuel level sensor accuracy

Use only approved cleaning agents and tools.

30000
36
  • Replace fuel filter
  • Inspect fuel tank for damage
  • Test fuel system for leaks
  • Check fuel pump performance
  • Clean fuel system components

Follow manufacturer's guidelines for fuel system maintenance.

60000
72
  • Replace fuel pump if necessary
  • Inspect and replace fuel lines if needed
  • Perform comprehensive fuel system test
  • Check and adjust fuel pressure
  • Verify all safety systems are functioning

Ensure all replacements meet OEM specifications.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What type of fuel is compatible with the 2014-2020 Mercedes S-Class?

The 2014-2020 Mercedes S-Class is compatible with premium unleaded gasoline with an octane rating of 91 or higher. Diesel variants require ultra-low sulfur diesel (ULSD). Using the recommended fuel ensures optimal engine performance, fuel efficiency, and longevity. Avoid using ethanol blends higher than 10% (E10) as they may cause engine damage or void warranties.

Q2

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

The fuel system in the Mercedes S-Class requires regular maintenance, including fuel filter replacement every 30,000 miles, inspection of fuel injectors for clogs, and use of fuel system cleaners every 15,000 miles. Additionally, ensure the fuel cap is tightly sealed to prevent evaporation and maintain fuel quality. Follow the manufacturer’s recommended service schedule for best results.

Q3

How do I replace the fuel filter in a 2014-2020 Mercedes S-Class?

To replace the fuel filter, first, locate it under the vehicle near the fuel tank. Disconnect the negative battery terminal for safety. Release 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 all components, and restore battery power. Start the engine to check for leaks.

Q4

What should I do if my Mercedes S-Class has fuel delivery issues?

If you experience fuel delivery issues, first check the fuel pump fuse and relay for functionality. Inspect the fuel filter for clogs and replace if necessary. Use a diagnostic tool to check for error codes related to the fuel system. If the problem persists, test the fuel pump pressure and inspect the fuel injectors. Seek professional assistance for complex issues.

Q5

How can I optimize the fuel efficiency of my Mercedes S-Class?

To optimize fuel efficiency, use the recommended fuel grade, maintain proper tire pressure, and avoid aggressive driving. Regularly service the fuel system, including filter and injector cleaning. Use cruise control on highways to maintain consistent speed. Reduce vehicle weight by removing unnecessary items and ensure the engine is tuned according to the manufacturer’s specifications.

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 Owner's Manual

Coming Soon

Comprehensive guide covering vehicle operation, maintenance, and troubleshooting for the 2014-2020 Mercedes S-Class.

Technical Service Bulletin: Fuel System Update

Coming Soon

Details a software update for improved fuel efficiency and system performance in select 2014-2020 S-Class models.

Mercedes S-Class Parts Catalog

Coming Soon

Complete catalog of OEM parts and accessories for the 2014-2020 Mercedes S-Class, including fuel system components.

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.

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