2018 Hyundai Santa Fe Is Leaking Oil

Address Oil Leaks in Your 2018 Hyundai Santa Fe Effectively

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Reviewed by
Andrew Hajjar
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 Santa Fe 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 Santa Fe 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 steps should I take to diagnose the oil leak in my 2018 Hyundai Santa Fe?

To effectively diagnose an oil leak in your 2018 Hyundai Santa Fe, begin with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. Start by locating the leak; inspect the area beneath your vehicle for any visible oil spots or puddles, which can provide initial clues. Next, examine the oil pan for cracks or damage, as this is a common source of leaks. Ensure that the oil filter is securely installed and not leaking, as improper installation can lead to oil loss. Additionally, check the oil drain plug to confirm it is tight and not contributing to the issue. Pay close attention to the gaskets and seals around the engine, as wear and tear in these areas can also result in leaks. Regularly monitor your oil levels; a significant drop may indicate a leak that needs addressing. If these steps do not reveal the source of the leak, or if the problem persists, it may be time to consult a mechanic for a professional evaluation. By following this diagnostic approach, you can efficiently identify and address the oil leak in your vehicle.

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

When dealing with oil leaks in a 2018 Hyundai Santa Fe, it's crucial to understand the common culprits that may be at play. One frequent issue is a worn or damaged oil pan gasket, which can deteriorate over time and lead to leaks. Similarly, the valve cover gasket, which seals the valve cover to the cylinder head, can also wear out, resulting in oil seepage. Another area to inspect is the oil filter housing gasket; if this component fails, it can cause oil to leak from the housing. Additionally, the rear main seal, located at the back of the engine, is prone to leaks as it ages, and issues with the oil cooler gasket can also contribute to oil leaks near the cooler. Addressing these leaks promptly is essential to prevent engine damage and maintain optimal vehicle performance. Regular inspections and maintenance can help you catch these issues early, ensuring your Santa Fe runs smoothly.

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

Addressing an oil leak in your 2018 Hyundai Santa Fe is not just a matter of routine maintenance; it is an urgent issue that requires immediate attention. Ignoring an oil leak can lead to a significant drop in oil levels, which compromises the lubrication of essential engine components. This lack of lubrication increases friction and wear, potentially resulting in severe engine damage that could be costly to repair. Moreover, oil that drips onto hot engine parts poses a serious fire hazard, creating a dangerous situation for you and your vehicle. Additionally, the environmental impact of oil leaks cannot be overlooked, as spilled oil can contaminate soil and water sources, harming local wildlife and ecosystems. Therefore, it is crucial to address any signs of an oil leak promptly to safeguard your vehicle's performance, ensure your safety, and protect the environment.

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