2019 Mazda CX-3 Is Leaking Oil

Discover the Common Causes of Oil Leaks in Your 2019 Mazda CX-3 and How to Resolve 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 2019 Mazda CX-3 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 2019 Mazda CX-3 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 the oil leak in a 2019 Mazda CX-3?

To effectively diagnose an oil leak in your 2019 Mazda CX-3, start by locating the leak itself. Begin by inspecting the area beneath your vehicle for any visible signs of oil, such as drips or puddles. Once you have a general idea of where the leak might be coming from, check the oil level in the engine; a significant drop could indicate a leak that needs immediate attention. Next, examine the oil filter and drain plug to ensure they are securely tightened, as loose components can often lead to leaks. Additionally, inspect the gaskets and seals around the engine for any signs of wear or damage, as these are common culprits for oil leaks. For a more precise diagnosis, consider adding UV dye to your engine oil and running the engine; this will allow you to use a UV light to pinpoint the leak more easily. If these steps do not reveal the source of the leak or if the problem persists, it may be time to consult a professional mechanic for a comprehensive inspection and repair.

What are the common causes of oil leaks in a 2019 Mazda CX-3?

When dealing with oil leaks in a 2019 Mazda CX-3, 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. Similarly, a worn valve cover gasket can also contribute to oil escaping from the engine. Another potential source of leaks is a faulty oil filter; if it is not installed correctly or is damaged, it can result in significant oil loss. Additionally, a loose or damaged drain plug can allow oil to leak from the oil pan, making it essential to check its condition regularly. Lastly, cracks in engine components, such as the engine block, can lead to more severe leaks and should be inspected if other sources are ruled out. Addressing these issues promptly is vital to maintaining engine health and performance, and regular maintenance checks can help catch these problems early, allowing DIY enthusiasts to tackle repairs effectively.

How urgent is it to address the oil leak in my 2019 Mazda CX-3?

Addressing an oil leak in your 2019 Mazda CX-3 is not just a matter of routine maintenance; it is an urgent issue that requires immediate attention. An oil leak can significantly reduce oil levels, leading to inadequate lubrication of engine components, which increases friction and heat. This can ultimately result in severe engine damage, potentially costing you thousands in repairs. Moreover, oil that leaks onto hot engine parts can create a fire hazard, putting both your safety and your vehicle at risk. Additionally, neglecting this issue can adversely affect your car's performance, leading to decreased fuel efficiency and overall engine functionality. Over time, what may start as a minor leak can escalate into a major problem, resulting in more extensive and costly repairs. Therefore, it is crucial to act swiftly to resolve any oil leaks to ensure the longevity and reliability of your Mazda CX-3.

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2019 Mazda CX-3 Oil Leak Causes & Repairs | RepairPal