2020 Mazda CX-5 Is Leaking Oil

Common Causes of Oil Leaks in Your 2020 Mazda CX-5 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 2020 Mazda CX-5 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 2020 Mazda CX-5 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 2020 Mazda CX-5?

When diagnosing an oil leak in a 2020 Mazda CX-5, it's essential to adopt a systematic diagnostic approach that prioritizes simplicity and efficiency. Start by locating the leak; inspect the area beneath the vehicle for any visible oil spots or drips, as this can provide immediate clues about the source. Next, focus on the oil filter and drain plug, ensuring they are securely tightened and free from damage, as these are common culprits for leaks. Following this, examine the oil pan gasket and valve cover gasket for signs of wear or deterioration, as both can lead to significant oil loss if compromised. Additionally, check the oil cooler for any leaks, as a malfunctioning cooler can also contribute to oil seepage. Throughout this process, it's crucial to monitor the engine's oil levels; a sudden decrease can indicate a leak that requires prompt attention. By methodically assessing these components, you can effectively diagnose and address the oil leak in your Mazda CX-5, ensuring your vehicle remains in optimal condition.

What are the common causes of oil leaks in a 2020 Mazda CX-5?

Understanding the common causes of oil leaks in a 2020 Mazda CX-5 is essential for any DIY enthusiast looking to maintain their vehicle. One of the primary culprits is the oil pan gasket, which can degrade over time, leading to oil seepage. Regularly inspecting this gasket can help catch any wear before it becomes a significant issue. Additionally, the oil filter should be checked for proper installation and condition, as a worn-out filter can also contribute to leaks. Another critical area to examine is the oil drain plug; if it is loose or damaged, it can easily allow oil to escape. Furthermore, be vigilant about the oil pan itself, as cracks from road debris can lead to substantial leaks. Lastly, the valve cover gasket is another component that can fail, resulting in oil leaks in the engine compartment. By being proactive and regularly inspecting these areas, DIYers can effectively manage and prevent oil leaks, ensuring their Mazda CX-5 remains in optimal condition.

How urgent is it to address the oil leak in my 2020 Mazda CX-5?

Addressing an oil leak in your 2020 Mazda CX-5 is not just a matter of routine maintenance; it is an urgent issue that requires immediate attention. Ignoring an oil leak can lead to severe engine damage, as oil is vital for lubricating moving parts and preventing overheating. Additionally, an oil leak poses significant safety risks, as it can create slippery conditions on the road, increasing the likelihood of accidents. The longer you wait to address the leak, the more extensive the damage can become, potentially leading to costly repairs that could have been avoided with prompt action. Therefore, it is essential to inspect and repair any oil leaks as soon as they are detected to ensure the safety, performance, and longevity of your vehicle.

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2020 Mazda CX-5 Leaking Oil: Causes & Repair Costs