2018 Hyundai Kona Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2018 Hyundai Kona and How to Address Them Effectively

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Reviewed by
Devin Cabugcal
Written by RepairPal Car Genius
Updated January 14, 2025
0%
80% chance it's the
Oil System Components
0%
20% chance it's the
Engine Gaskets
The most common reasons a 2018 Hyundai Kona is leaking oil are oil system component failure and leaking engine gaskets.
  • Oil System Components: A worn or damaged oil pump or filter can lead to low oil pressure, resulting in inadequate lubrication and potential engine damage.
  • Engine Gaskets: A worn or damaged engine gasket can lead to oil or coolant leaks, resulting in engine overheating or loss of lubrication.
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 2018 Hyundai Kona is leaking oil?

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.

Oil pans don't wear out or break like other parts, they generally only need to be replaced because of external damage from an accident or an improperly tightened drain plug. The main symptom you will experience is an oil leak underneath the engine of your car. The oil that leaks from a damaged oil pan will range from dark brown to dark black. If the leak is large enough or occurs for long enough the oil level will be low enough to turn the oil pressure or low oil level warning light on.

An oil leak may be noted on the ground where the vehicle is parked. However, many vehicles have plastic trays underneath the engine that may catch leaking oil and conceal the leak. In such cases, a low oil level, a burning oil smell, or even smoke from oil burning in the engine bay may be noted.

»MORE: Signs of a bad oil pan gasket

The engine oil pressure warning light will come on if the engine oil pressure is low, or if the oil pressure sensor is faulty. In either case, engine power may be reduced significantly. The check engine light may also illuminate, and an on-board diagnostic (OBD) trouble code will be stored in the vehicle's computer.

What are the potential causes of an oil leak in a 2018 Hyundai Kona, and how should I diagnose the issue?

When diagnosing an oil leak in your 2018 Hyundai Kona, it's essential to adopt a systematic approach that prioritizes simpler checks before delving into more complex issues. Start by thoroughly cleaning the engine to remove any old oil residue, which will help you identify the source of the leak more easily. Begin your inspection at the oil pan, as a worn or damaged oil pan gasket is a common culprit. Next, examine the oil filter and its seal, ensuring they are secure and free from damage. Don’t overlook the drain plug; a loose or damaged plug can lead to significant leaks. Continue your assessment by inspecting the valve cover gasket, as deterioration here can also result in oil escaping. Finally, check the oil cooler lines for any signs of wear or cracks. By following this methodical diagnostic approach, you can effectively pinpoint the source of the oil leak and determine the necessary repairs, ensuring your Hyundai Kona remains in optimal condition.

What are the common causes of oil leaks in a 2018 Hyundai Kona?

When dealing with oil leaks in a 2018 Hyundai Kona, it's essential to understand the common culprits that may be at play. One frequent issue is a degraded or damaged oil pan gasket, which can wear out over time and lead to leaks. Additionally, a faulty oil filter or seal can cause oil to escape from the filter housing, making it crucial to inspect these components regularly. Another area to check is the valve cover gasket, as wear and tear can result in oil leaking from the top of the engine. Furthermore, leaking oil cooler lines, often due to damage or looseness, can contribute to oil leaks in the engine compartment. Lastly, be vigilant for any cracks in engine components, as these can also lead to significant oil loss. By being aware of these potential issues and conducting regular maintenance, DIY enthusiasts can effectively address and prevent oil leaks, ensuring their Hyundai Kona remains in optimal condition.

How urgent is it to address the oil leak in my 2018 Hyundai Kona?

Addressing an oil leak in your 2018 Hyundai Kona is not just a matter of routine maintenance; it is a critical issue that demands immediate attention. An oil leak can lead to a rapid decrease in oil levels, which compromises the engine's lubrication system, increasing the risk of severe engine damage over time. If left unchecked, this seemingly minor issue can escalate into major problems, such as engine overheating or even catastrophic engine failure, which can be both costly and inconvenient. Moreover, the safety implications cannot be overlooked; leaking oil can drip onto hot engine components, creating a fire hazard that endangers both the vehicle and its occupants. By promptly monitoring and addressing any signs of an oil leak, you not only safeguard your vehicle's performance but also ensure your safety on the road. Therefore, it is imperative to take action as soon as you notice any signs of an oil leak in your Hyundai Kona to prevent further damage and mitigate safety risks.

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