2023 Lexus NX350 Is Leaking Oil

Discover the Common Causes of Oil Leaks in Your 2023 Lexus NX350 and How to Address Them Promptly

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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 2023 Lexus NX350 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 2023 Lexus NX350 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.

A bad oil level sensor may cause a false reading of the engine oil level. The oil level warning light may illuminate even when the oil level (checked manually) is within an acceptable range. The warning light may also come on and off intermittently if the sensor is faulty. An error code may be sent to the PCM and a check engine light may come on the dashboard as well if the sensor is bad.

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 the oil leak in a 2023 Lexus NX350?

To effectively diagnose an oil leak in your 2023 Lexus NX350, start by locating the leak, which involves inspecting the underside of the vehicle for any oil spots or puddles that may indicate the source. Next, check the oil level in the engine; a lower-than-normal level can signal a leak. Pay close attention to the oil filter and drain plug, as these components are common culprits for leaks and may require tightening or replacement if they show signs of leakage. Additionally, examine the gaskets and seals within the engine for any wear or damage that could be contributing to the issue. If the source remains elusive, consider adding UV dye to the engine oil, which can help illuminate the leak under UV light. Finally, if necessary, conduct a pressure test to accurately pinpoint the leak's location. By following these steps, you can systematically assess and diagnose the oil leak, ensuring a thorough and effective approach to your vehicle's maintenance.

What are the common causes of oil leaks in a 2023 Lexus NX350?

When dealing with oil leaks in a 2023 Lexus NX350, 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 deteriorate over time and lead to leaks. Similarly, a worn valve cover gasket can cause oil seepage, making it crucial to inspect these components regularly. Additionally, a faulty oil filter or drain plug can result in leaks if they are not properly installed or if they sustain damage. Cracked or damaged oil seals, such as those found around the camshaft or crankshaft, are also common sources of oil leaks, as they can wear out and fail to contain the oil within the engine. Lastly, overfilling the engine with oil can create excess pressure, leading to leaks. Addressing these issues promptly is vital to maintaining your vehicle's performance and preventing further damage, so regular inspections and maintenance are highly recommended for any DIY enthusiast looking to keep their Lexus NX350 in top shape.

How urgent is it to address the oil leak in my 2023 Lexus NX350?

Addressing an oil leak in your 2023 Lexus NX350 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, increasing the risk of severe damage over time. Additionally, a leaking oil system can cause the engine to overheat, potentially resulting in costly repairs or even complete engine failure. The safety implications are equally concerning, as oil can drip onto hot engine parts, creating a fire hazard. By promptly monitoring and addressing any signs of an oil leak, you not only safeguard your vehicle's performance but also enhance its longevity. Therefore, it is crucial to take action as soon as you notice any symptoms of an oil leak to prevent further damage and ensure the safe operation of your Lexus NX350.

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