2018 Hyundai Ioniq Is Leaking Oil

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

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Reviewed by
Aisha
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 Ioniq 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 Ioniq 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.

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 initial steps to diagnose an oil leak in a 2018 Hyundai Ioniq?

When diagnosing an oil leak in a 2018 Hyundai Ioniq, it's essential to adopt a systematic diagnostic approach. Start by locating the leak; this involves checking underneath the vehicle for any visible oil spots or drips. Once you have a general area, inspect the oil filter and drain plug, as these components are often the culprits behind leaks. Ensure they are tight and free from damage. Next, examine the oil pan for any cracks or signs of wear, as this can also lead to oil loss. The valve cover gasket is another common source of leaks, so look for any oil accumulation around the valve cover. If your Ioniq has an oil cooler, inspect it for potential leaks, and don't forget to check all oil lines and hoses for wear or damage. Finally, keep an eye on your oil levels over time; this will help you gauge the severity of the leak and assist in pinpointing its source. By following these steps, you can effectively diagnose and address oil leaks in your vehicle, ensuring it runs smoothly and efficiently.

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

When dealing with oil leaks in a 2018 Hyundai Ioniq, it's crucial 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 essential to check these components regularly. Another area to inspect 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, whether 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. Addressing these issues promptly is vital to maintaining your vehicle's performance and preventing further damage, so regular inspections and maintenance are key to keeping your Ioniq in top shape.

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

Addressing an oil leak in your 2018 Hyundai Ioniq is not just a matter of routine maintenance; it is a pressing issue that requires immediate attention. An oil leak can significantly reduce the oil levels in your engine, leading to inadequate lubrication of vital components. This lack of lubrication can cause severe wear and tear, ultimately resulting in costly engine damage. Moreover, neglecting an oil leak can lead to overheating, which poses a serious risk of engine failure. The situation is further exacerbated by the safety hazards associated with leaking oil, as it can drip onto hot engine parts, increasing the risk of a fire. Therefore, it is crucial to act swiftly and address any signs of an oil leak to safeguard both your vehicle's performance and your safety on the road.

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2018 Hyundai Ioniq Oil Leak Solutions & Repair Costs