Mercedes-Benz Mercedes GLS 2016-2019 Fuel System Specifications
Mercedes-Benz Mercedes GLS 2016-2019

Mercedes-Benz Mercedes GLS 2016-2019 Fuel System Specifications

Explore the fuel specifications for the 2016-2019 Mercedes-Benz GLS, including fuel type, tank capacity, economy, and emissions. This guide is essential for maintenance, troubleshooting, and optimizing performance.

Updated

Overview Specifications

This document provides detailed fuel specifications for the 2016-2019 Mercedes-Benz GLS. It includes information on fuel types, efficiency, tank capacity, and performance metrics. Use this guide to understand the fuel-related features of the GLS and optimize your driving experience. The document is organized into sections for easy navigation and includes a quick reference table for key specifications.

How to Use

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

Navigate through the document using the section titles and subsections. Each section is labeled clearly, and subsections provide detailed technical points for easy reference.

Key Specifications

Fuel Type

Premium Unleaded Gasoline / Diesel

Fuel Tank Capacity

26.4 gallons (100 liters)

City MPG

14-16 (Gasoline) / 18-20 (Diesel)

Highway MPG

20-22 (Gasoline) / 24-26 (Diesel)

Driving Range

370-450 miles (Gasoline) / 475-550 miles (Diesel)

Available Specifications

Fuel Types and Compatibility

This section covers the types of fuel compatible with the 2016-2019 Mercedes-Benz GLS. It includes details on recommended fuel grades, alternative fuel options, and the impact of fuel choice on performance.

Recommended Fuel Grades
  • Premium unleaded gasoline (91 octane or higher) is recommended for optimal performance.
  • Regular unleaded gasoline (87 octane) can be used but may reduce engine efficiency.
  • Diesel variants are available in select markets, requiring ultra-low sulfur diesel (ULSD).
  • Ethanol blends up to E10 are compatible with gasoline engines.
Alternative Fuel Options
  • No factory-supported hybrid or electric variants for the 2016-2019 GLS.
  • Aftermarket CNG (Compressed Natural Gas) conversions are possible but not recommended by Mercedes-Benz.
  • Biodiesel is not supported for diesel variants.

Fuel Efficiency and Economy

This section provides detailed information on the fuel efficiency of the 2016-2019 Mercedes-Benz GLS. It includes city, highway, and combined MPG ratings, as well as factors affecting fuel economy.

MPG Ratings
  • City MPG: 14-16 for gasoline models, 18-20 for diesel models.
  • Highway MPG: 20-22 for gasoline models, 24-26 for diesel models.
  • Combined MPG: 17-19 for gasoline models, 21-23 for diesel models.
  • Actual mileage may vary based on driving conditions and habits.
Factors Affecting Fuel Economy
  • Driving style: Aggressive acceleration and braking reduce efficiency.
  • Load: Carrying heavy cargo or towing decreases MPG.
  • Terrain: Hilly or mountainous areas can lower fuel economy.
  • Maintenance: Regular servicing ensures optimal engine performance.

Fuel Tank and Range

This section details the fuel tank capacity and driving range of the 2016-2019 Mercedes-Benz GLS. It includes information on tank size, refueling, and estimated range under different conditions.

Fuel Tank Capacity
  • Gasoline models: 26.4-gallon (100-liter) fuel tank.
  • Diesel models: 26.4-gallon (100-liter) fuel tank.
  • Tank material: High-density polyethylene for durability.
  • Refueling time: Approximately 5-7 minutes at a standard pump.
Driving Range
  • Gasoline models: Estimated range of 370-450 miles on a full tank.
  • Diesel models: Estimated range of 475-550 miles on a full tank.
  • Range varies based on driving conditions and load.
  • Low fuel warning light activates with approximately 2.6 gallons (10 liters) remaining.

Component Specifications

Overview

Type
Gasoline/Diesel
Configuration
Direct Injection
Platform
MHA Platform
Material
Aluminum Alloy
Location
Underbody Center

Dimensions

Tank Capacity
26.4 gallons (100 liters)
Weight Empty
25.3 lbs (11.5 kg)
Length
47.2 in (120 cm)
Width
31.5 in (80 cm)
Height
14.2 in (36 cm)
Fuel Line Diameter
0.5 in (12.7 mm)
Fuel Pump Pressure
58 psi (4 bar)

Materials

Tank
High-Density Polyethylene
Fuel Lines
Nylon Coated Steel
Filler Neck
Stainless Steel
Pump
Aluminum Housing
Filter
Synthetic Fiber

Features

Efficiency
  • Start/Stop System
  • Eco Mode
  • Turbocharging
  • Direct Fuel Injection
Monitoring
  • Fuel Level Sensor
  • Leak Detection System
  • Pressure Monitoring
  • Consumption Display
Performance
  • High-Pressure Fuel Pump
  • Variable Valve Timing
  • Multi-Spark Ignition
  • Adaptive Fuel Mapping
Emissions
  • Catalytic Converter
  • Particulate Filter
  • Exhaust Gas Recirculation
  • AdBlue Injection
Safety
  • Rollover Valve
  • Overfill Protection
  • Impact-Activated Shutoff

Safety Features

Tank Protection
  • Reinforced Housing
  • Heat Shielding
  • Impact Resistant Design
Leak Prevention
  • Automatic Shutoff Valve
  • Double-Walled Fuel Lines
  • Sealed Connections
Fire Safety
  • Flame Arrestor
  • Thermal Insulation
  • Emergency Venting

Comfort Features

Refueling
  • Automatic Fuel Door
  • Easy-Fill Nozzle
  • Fuel Cap Holder
Driving
  • Smooth Acceleration
  • Quiet Operation
  • Adaptive Throttle Response
Maintenance
  • Self-Sealing Connections
  • Accessible Fuel Filter
  • Diagnostic Port

Accessories

Tank
  • Skid Plate
  • Insulation Kit
  • Extension Kit
Lines
  • Replacement Hoses
  • Clamp Set
  • Protective Sleeves
Pump
  • Upgrade Kit
  • Mounting Bracket
  • Wiring Harness

Maintenance

Service interval
10,000 miles or 12 months
Items
  • Fuel Filter Replacement
  • Fuel Line Inspection
  • Tank Vent Check
  • Pump Performance Test
  • Leak Detection Test
Notes
Use only manufacturer-recommended fuel additives.

Warranty

Basic
Miles: 50,000
Years: 4
Coverage: Parts and Labor
Powertrain
Miles: 100,000
Years: 7
Coverage: Fuel System Components
Emissions
Miles: 70,000
Years: 8
Coverage: Catalytic Converter, Sensors
Corrosion
Miles: Unlimited
Years: 12
Coverage: Fuel Tank

Production Details

Manufacturer
Mercedes-Benz AG
Manufacturing Process
  • Injection Molding
  • Precision Machining
  • Automated Assembly
Quality Control
Testing: Pressure Testing, Leak Testing, Durability Testing
Standards: ISO 9001, ISO 14001
Sustainability
  • Recycled Materials
  • Low-Emission Production
  • Energy-Efficient Processes
Production Metrics
Units Per Day: 500
Defect Rate: 0.1%
Energy Consumption: 150 kWh/unit

Service Information for Fuel System Service

Maintenance and service requirements specific to the fuel system

10,000
12
  • Inspect fuel lines for leaks
  • Check fuel filter condition
  • Test fuel pump pressure
  • Verify tank vent operation
  • Clean fuel injectors

Use diagnostic tools for accurate pressure readings.

30,000
36
  • Replace fuel filter
  • Inspect fuel tank for damage
  • Check fuel cap seal
  • Test fuel level sensor
  • Verify emissions system

Replace with OEM parts for optimal performance.

60,000
72
  • Replace high-pressure fuel pump
  • Inspect and clean fuel injectors
  • Check fuel tank for corrosion
  • Test fuel system for leaks
  • Verify fuel consumption data

Perform comprehensive system diagnostics.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What type of fuel is recommended for 2016-2019 Mercedes GLS models?

The 2016-2019 Mercedes GLS models are designed to run on premium unleaded gasoline with an octane rating of 91 or higher. Using lower octane fuel may result in reduced performance and efficiency. Diesel variants, such as the GLS 350d, require ultra-low sulfur diesel (ULSD). Always refer to the owner’s manual for specific fuel requirements and avoid using ethanol blends above 10% to prevent engine damage.

Q2

What are the maintenance requirements for the fuel system in the Mercedes GLS?

The fuel system in the 2016-2019 Mercedes GLS requires regular maintenance to ensure optimal performance. This includes inspecting and replacing the fuel filter every 30,000 miles, checking for fuel leaks, and using fuel system cleaners periodically to prevent carbon buildup. Additionally, ensure the fuel cap is tightly sealed to maintain proper pressure in the fuel system. Adhering to the manufacturer’s maintenance schedule is crucial for longevity.

Q3

How do I replace the fuel filter in a 2016-2019 Mercedes GLS?

To replace the fuel filter in a 2016-2019 Mercedes GLS, first, locate the filter, typically found near the fuel tank. Relieve fuel system pressure by removing the fuel pump fuse and running the engine until it stalls. Disconnect the battery, then remove the old filter, ensuring you note the direction of fuel flow. Install the new filter, reconnect the fuel lines, and secure it in place. Reconnect the battery and test for leaks before starting the engine.

Q4

What should I do if my Mercedes GLS is experiencing fuel delivery issues?

If your Mercedes GLS has fuel delivery issues, start by checking the fuel pump fuse and relay for functionality. Inspect the fuel filter for clogs and replace it if necessary. Test the fuel pressure using a gauge to ensure the pump is operating correctly. If the problem persists, inspect the fuel injectors for blockages or malfunctions. For persistent issues, consult a certified technician for a thorough diagnostic.

Q5

How can I optimize fuel efficiency in my Mercedes GLS?

To optimize fuel efficiency in your 2016-2019 Mercedes GLS, maintain proper tire pressure, use recommended premium fuel, and avoid aggressive driving. Regularly service the engine, air filter, and fuel system. Utilize the ECO Start/Stop feature if equipped, and reduce vehicle weight by removing unnecessary items. Additionally, ensure the vehicle’s software is up to date, as updates may improve fuel management systems.

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 GLS 2016-2019 Owner’s Manual

Coming Soon

Comprehensive guide covering vehicle operation, maintenance, and fuel specifications for the 2016-2019 Mercedes GLS.

Technical Service Bulletin: Fuel System Updates

Coming Soon

Details recent updates and improvements to the fuel system for 2016-2019 Mercedes GLS models.

Mercedes GLS Parts and Accessories Catalog

Coming Soon

Official catalog listing genuine parts and accessories for the 2016-2019 Mercedes GLS, including fuel system components.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

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