2019 Volkswagen Golf SportWagen Smells Like Gas

Diagnosing Fuel Odor Issues in Your 2019 Volkswagen Golf SportWagen and Essential Safety Measures

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
15% chance it's the
Gas Cap
0%
40% chance it's the
Emissions Control System
0%
45% chance it's
Something else
The most common reasons a 2019 Volkswagen Golf SportWagen smells like gas are the gas cap, the fuel system, or the emissions control system.
  • Gas Cap: A loose or damaged gas cap can cause fuel vapors to escape, triggering the check engine light and potentially affecting fuel system pressure.
  • Emissions Control System: A faulty emissions control system can lead to increased hydrocarbon emissions and trigger the check engine light due to malfunctioning components like the EGR valve or O2 sensors.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2019 Volkswagen Golf SportWagen smells like gas?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

A failing catalytic converter can cause a vehicle to fail emissions tests and turn on the check engine light. The exhaust might have an unusual smell. A restricted catalytic converter can result in a loss of engine power.

» LEARN MORE: How to tell if your catalytic converter is failing

The check engine light will illuminate any time there is a failed EVAP system test. This will be indicated by the various on-board diagnostics trouble codes that are stored in the vehicle's memory. Also, in some models, there may be a popping sound accompanying the check engine light, as the leak detection pump continuously attempts to pressurize the fuel tank. The canister may also cause difficulty starting the engine, a rough idle, and poor fuel mileage.

The check engine light will illuminate any time there is a failed EVAP system test. This will be indicated by the various on-board diagnostics trouble codes that are stored in the vehicle's memory. Also, in some models, there may be a popping sound accompanying the check engine light, as the leak detection pump continuously attempts to pressurize the fuel tank. A fuel tank leak may also cause difficulty starting the engine, a rough idle, and poor fuel mileage. When a fuel tank is simply corroded to the point of failure, the exterior tank condition rarely shows damage. The inside of the fuel tank will be rusted or corroded, and rust flakes or other debris may be floating in the fuel.

For most vehicles, the only symptom will be a check engine light or fuel tank filler cap light illuminating on the driver instrument cluster. This is to signal that there is an evaporative emissions (EVAP) leak. In some situations, the vehicle may take longer than normal to start, or, more rarely, the engine may not start at all. on-board diagnostic (OBD) trouble codes will refer to EVAP system failures such as a small or massive EVAP system leak. Lastly, the powertrain control module may notice a lean running condition, which could even lead to random and infrequent misfires.

What steps should I take to diagnose the gas smell in my 2019 Volkswagen Golf SportWagen?

To effectively diagnose the gas smell in your 2019 Volkswagen Golf SportWagen, start with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. Begin by inspecting the area under your vehicle for any visible signs of gasoline leaks, such as dripping fuel or wet spots, which can indicate a direct source of the odor. Next, ensure that the fuel cap is securely tightened, as a loose or damaged cap can allow gasoline vapors to escape, contributing to the smell. Following this, examine the fuel lines for any cracks or damage, as compromised lines can lead to leaks both inside and outside the car. Additionally, check the fuel injector for any signs of leakage, as a faulty injector can also produce a strong gasoline odor. Don’t forget to inspect the fuel tank for any visible damage or leaks, as this could be another potential source of the smell. If, after these checks, you are still unable to identify the source of the gas smell or suspect a more serious issue, it is wise to consult a qualified mechanic for a thorough inspection. By following this diagnostic approach, you can efficiently pinpoint the cause of the gas smell and take appropriate action to resolve it.

What could be causing a gas smell in my 2019 Volkswagen Golf SportWagen?

If you're detecting a gas smell in your 2019 Volkswagen Golf SportWagen, it's crucial to understand the common problems that could be at play. One of the primary concerns is a fuel leak, which may stem from a damaged fuel line, a malfunctioning fuel injector, or issues with the fuel tank itself. Additionally, the evaporative emissions system, designed to manage fuel vapors, could be malfunctioning, leading to the unpleasant odor. A simple yet often overlooked culprit is a faulty fuel cap; if it's loose or damaged, it can allow vapors to escape. Furthermore, exhaust system issues, such as leaks or problems with the catalytic converter, can also contribute to the gas smell inside your vehicle. Lastly, engine performance problems, particularly if the engine is running too rich, can produce excess fuel vapors. Given the potential dangers associated with gas smells, including fire hazards, it's advisable to have your vehicle inspected by a qualified mechanic to ensure safety and proper functioning.

How urgent is it to address the gas smell in my 2019 Volkswagen Golf SportWagen?

Addressing a gas smell in your 2019 Volkswagen Golf SportWagen is not just a matter of convenience; it is an urgent safety concern that should be prioritized. Gas leaks pose a significant risk of fire or explosion, making it essential to investigate any unusual odors immediately. Additionally, inhaling gas fumes can lead to serious health issues, including dizziness, headaches, and nausea, which can impair your ability to drive safely. Beyond the immediate dangers, neglecting a gas smell can result in further damage to your vehicle, leading to more extensive and costly repairs down the line. Therefore, if you detect a gas smell, it is crucial to take swift action to ensure your safety, protect your health, and maintain the integrity of your vehicle.

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