Volkswagen Volkswagen Jetta 2011-2018 Fuel System Specifications
Volkswagen Volkswagen Jetta 2011-2018

Volkswagen Volkswagen Jetta 2011-2018 Fuel System Specifications

Explore the detailed fuel specifications for the 2011-2018 Volkswagen JETTA, including fuel type, octane rating, tank capacity, and fuel economy. This guide is essential for maintenance, performance, and troubleshooting.

Updated

Overview Specifications

This document provides detailed fuel specifications for the 2011-2018 Volkswagen Jetta. It includes information on fuel types, efficiency, tank capacity, and emissions. Use this guide to understand the technical aspects of the Jetta's fuel system and to compare its performance across different model years. Navigate through the sections to find specific details or use the quick reference table for key specifications.

How to Use

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Key Specifications

Fuel Tank Capacity

14.5 gallons

City MPG (Gasoline)

23-30 mpg

Highway MPG (Diesel)

42-46 mpg

CO2 Emissions (Hybrid)

150-200 g/mile

Octane Rating (Gasoline)

87 or higher

Available Specifications

Fuel Types and Compatibility

This section covers the types of fuel recommended for the 2011-2018 Volkswagen Jetta. It includes details on gasoline, diesel, and alternative fuel options, as well as any specific requirements or restrictions.

Gasoline Engine Fuel Requirements
  • Regular unleaded gasoline with an octane rating of 87 or higher is recommended.
  • Premium gasoline (91 octane or higher) is optional for improved performance.
  • Ethanol blends up to E10 (10% ethanol) are compatible.
  • Avoid using fuels with methanol or MMT additives.
Diesel Engine Fuel Requirements
  • Ultra-low sulfur diesel (ULSD) with a maximum sulfur content of 15 ppm is required.
  • Biodiesel blends up to B5 (5% biodiesel) are acceptable.
  • Use diesel fuel with a cetane rating of 49 or higher.
  • Avoid using heating oil or other non-standard diesel fuels.

Fuel Efficiency and Economy

This section provides information on the fuel efficiency of the 2011-2018 Volkswagen Jetta. It includes EPA-estimated mileage, real-world performance, and factors affecting fuel economy.

EPA-Estimated Mileage
  • Gasoline models: 23-30 mpg city, 29-40 mpg highway.
  • Diesel models: 30-31 mpg city, 42-46 mpg highway.
  • Hybrid models: 42-48 mpg combined.
  • Actual mileage may vary based on driving conditions.
Factors Affecting Fuel Economy
  • Driving habits, such as aggressive acceleration and braking.
  • Vehicle load and towing capacity.
  • Tire pressure and alignment.
  • Environmental conditions, including temperature and altitude.

Fuel Tank and Capacity

This section details the fuel tank specifications for the 2011-2018 Volkswagen Jetta, including capacity, materials, and refueling procedures.

Fuel Tank Capacity
  • Gasoline models: 14.5-gallon tank.
  • Diesel models: 14.5-gallon tank.
  • Hybrid models: 11.9-gallon tank.
  • Reserve fuel capacity: Approximately 2 gallons.
Refueling Procedures
  • Use the fuel door release lever located inside the vehicle.
  • Ensure the fuel cap is securely tightened after refueling.
  • Avoid overfilling the tank to prevent spillage.
  • Diesel models require a separate nozzle at fueling stations.

Emissions and Environmental Impact

This section covers the emissions standards and environmental impact of the 2011-2018 Volkswagen Jetta. It includes details on CO2 emissions, particulate matter, and compliance with regulations.

CO2 Emissions
  • Gasoline models: 250-350 g/mile.
  • Diesel models: 200-300 g/mile.
  • Hybrid models: 150-200 g/mile.
  • Emissions vary based on engine type and driving conditions.
Compliance with Emissions Standards
  • Meets EPA Tier 2 Bin 5 emissions standards.
  • Complies with Euro 5 and Euro 6 standards for diesel models.
  • Equipped with catalytic converters and diesel particulate filters.
  • Regular maintenance is required to ensure compliance.

Component Specifications

Overview

Type
Gasoline/Diesel
Configuration
Front-engine, front-wheel drive
Platform
Volkswagen Group A5 (PQ35)
Material
High-density polyethylene (HDPE) fuel tank
Location
Under rear passenger compartment

Dimensions

Fuel Tank Capacity
14.5 gallons (55 liters)
Fuel Line Diameter
0.375 inches (9.5 mm)
Fuel Pump Pressure
58 psi (4 bar)
Fuel Filter Size
4.5 x 2.75 inches (114 x 70 mm)
Fuel injector Flow Rate
150 cc/min
Fuel Rail Length
22 inches (560 mm)
Fuel Tank Weight Empty
12.5 lbs (5.7 kg)

Materials

Fuel Tank
High-density polyethylene (HDPE)
Fuel Lines
Nylon with rubber coating
Fuel Pump
Stainless steel and plastic composite
Fuel injectors
Aluminum alloy with stainless steel nozzles
Fuel Rail
Aluminum alloy

Features

Fuel Delivery
  • Electronic fuel injection (EFI)
  • Sequential multi-port injection
  • Variable fuel pressure regulation
  • Returnless fuel system
Fuel Efficiency
  • Start-stop system (TDI models)
  • Eco mode (select models)
  • Low rolling resistance tires
  • Aerodynamic underbody panels
Fuel Monitoring
  • Digital fuel gauge
  • Low fuel warning light
  • Distance-to-empty calculation
  • Fuel consumption display
Emissions Control
  • Evaporative emissions system
  • Catalytic converter
  • Exhaust gas recirculation (EGR)
  • Diesel particulate filter (TDI models)
Safety
  • Rollover valve in fuel tank
  • Impact-activated fuel shutoff
  • Leak detection system
  • Flame arrestor in fuel filler neck

Safety Features

Crash Protection
  • Impact-activated fuel pump shutoff
  • Reinforced fuel tank structure
Fire Prevention
  • Flame arrestor in fuel filler neck
  • Leak detection system
Environmental Protection
  • Evaporative emissions control
  • Sealed fuel system

Comfort Features

Refueling
  • Capless fuel filler
  • Easy-access fuel door release
  • Fuel gauge with precision markings
Driving Range
  • Extended range display
  • Eco driving mode
  • Fuel consumption optimization
Noise Reduction
  • Insulated fuel pump
  • Quiet fuel injectors
  • Vibration-dampened fuel lines

Accessories

Fuel System
  • Fuel system cleaner
  • Fuel additive packages
  • Fuel line antifreeze
Monitoring
  • Fuel consumption tracker
  • Digital fuel gauge upgrade
  • Fuel system diagnostic tool
Maintenance
  • Fuel filter replacement kit
  • Fuel injector cleaning kit
  • Fuel pump repair kit

Maintenance

Service interval
Every 10,000 miles or 12 months
Service Items
  • Fuel filter replacement
  • Fuel system inspection
  • Fuel injector cleaning
  • Fuel pump performance check
  • Evaporative emissions system test
Maintenance Notes
Use only recommended fuel types and additives

Warranty

Basic
Miles: 36,000
Years: 3
Coverage: Fuel system components
Powertrain
Miles: 60,000
Years: 5
Coverage: Fuel pump and injectors
Emissions
Miles: 80,000
Years: 8
Coverage: Evaporative emissions system
Corrosion
Miles: 120,000
Years: 12
Coverage: Fuel tank and lines

Production Details

Manufacturer
Volkswagen AG
Manufacturing Process
  • Injection molding for fuel tank
  • CNC machining for fuel rail
  • Precision assembly of fuel pump
Quality Control
Pressure Testing: Fuel system pressure tests
Leak Detection: Helium leak testing
Durability: Vibration and impact testing
Sustainability Practices
  • Recycled materials in fuel tank
  • Low-emission manufacturing
  • Water-based coatings
Production Metrics
Annual Production: 500,000 units
Defect Rate: 0.01%
Energy Efficiency: 15% improvement since 2010

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 pressure
  • Inspect fuel tank for leaks
  • Verify fuel gauge accuracy

Use only manufacturer-approved fuel additives

40,000
48
  • Replace fuel filter
  • Clean fuel injectors
  • Inspect fuel pump performance
  • Check evaporative emissions system
  • Test fuel system pressure

Special tools required for fuel pump access

100,000
120
  • Replace fuel pump assembly
  • Inspect and clean fuel tank
  • Replace fuel lines if necessary
  • Test fuel injector flow rates
  • Perform complete fuel system diagnostic

Critical to replace all seals and gaskets during major service

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What type of fuel is compatible with the 2011-2018 Volkswagen Jetta?

The 2011-2018 Volkswagen Jetta is compatible with unleaded gasoline with an octane rating of 87 or higher. For optimal performance, Volkswagen recommends using premium unleaded gasoline with an octane rating of 91 or higher, especially for turbocharged models. Diesel models require ultra-low sulfur diesel (ULSD). Always refer to the owner's manual for specific fuel requirements and avoid using ethanol blends above 10% (E10) unless specified.

Q2

What are the maintenance requirements for the 2011-2018 Volkswagen Jetta?

The 2011-2018 Volkswagen Jetta requires regular maintenance to ensure optimal performance. Key tasks include oil changes every 10,000 miles or 12 months, tire rotations every 10,000 miles, and air filter replacements every 20,000 miles. Brake fluid should be replaced every 2 years, and spark plugs should be inspected or replaced every 40,000 miles. Adhering to the manufacturer's maintenance schedule is crucial for longevity and warranty compliance.

Q3

How do I replace the fuel filter in a 2011-2018 Volkswagen Jetta?

To replace the fuel filter in a 2011-2018 Volkswagen Jetta, first, locate the fuel filter under the vehicle near the fuel tank. Relieve fuel system pressure by removing the fuel pump fuse and running the engine until it stalls. Disconnect the fuel lines and remove the old filter. Install the new filter, ensuring proper orientation, and reconnect the fuel lines. Restore fuel system pressure and check for leaks before starting the engine.

Q4

What should I do if my 2011-2018 Volkswagen Jetta has poor fuel efficiency?

If your 2011-2018 Volkswagen Jetta has poor fuel efficiency, check for common issues such as dirty air filters, underinflated tires, or clogged fuel injectors. Ensure the fuel cap is tightly sealed and inspect for any fuel leaks. Use a diagnostic tool to check for error codes related to the oxygen sensor or mass airflow sensor. Regular maintenance and using the recommended fuel type can also improve efficiency.

Q5

How can I optimize the performance of my 2011-2018 Volkswagen Jetta?

To optimize the performance of your 2011-2018 Volkswagen Jetta, use premium fuel for turbocharged models, maintain proper tire pressure, and replace air filters regularly. Consider upgrading to high-performance spark plugs and synthetic oil for better engine efficiency. Regularly clean the throttle body and fuel injectors, and ensure the exhaust system is free of obstructions. Adhering to the maintenance schedule is key to sustained performance.

Factory Service Resources

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

2011-2018 Volkswagen Jetta Owner's Manual

Coming Soon

Comprehensive guide covering vehicle operation, maintenance schedules, and technical specifications for the 2011-2018 Volkswagen Jetta.

Volkswagen Technical Service Bulletin (TSB) for Fuel System Updates

Coming Soon

Details updates and fixes for fuel system components in the 2011-2018 Volkswagen Jetta, including software updates and part replacements.

Volkswagen Jetta Parts and Accessories Catalog

Coming Soon

Official catalog listing genuine parts and accessories for the 2011-2018 Volkswagen Jetta, 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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