2016 Mazda CX-5 Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2016 Mazda CX-5 and How to Address Them Effectively

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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 2016 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 2016 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 steps to diagnose an oil leak in a 2016 Mazda CX-5?

To effectively diagnose an oil leak in your 2016 Mazda CX-5, begin by inspecting the area where you usually park for any signs of oil puddles or stains, as this can help you locate the source of the leak. Focus on the engine, particularly around gaskets, seals, and the oil pan, which are common areas for leaks to occur. Next, check the oil level using the dipstick; a noticeable drop in oil level may indicate a leak that needs attention. It's also important to examine the oil filter and drain plug for tightness, as loose components can lead to oil escaping. Additionally, inspect the gaskets and seals for any signs of wear or damage, as these can contribute to oil loss. If the leak is still difficult to identify, consider adding UV dye to the engine oil, which can illuminate the leak's origin under UV light. For a comprehensive assessment, a professional mechanic can perform a pressure test to accurately pinpoint the leak by pressurizing the oil system. By following this structured diagnostic approach, you can systematically identify and resolve the oil leak issue in your vehicle.

What are the common causes of oil leaks in a 2016 Mazda CX-5?

When dealing with oil leaks in a 2016 Mazda CX-5, 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 be a source of oil leakage, as it may fail to create a proper seal. Additionally, a faulty oil filter or one that has been improperly installed can result in oil seeping out, so it's important to ensure that the filter is correctly fitted. Another potential problem is a damaged oil drain plug; if this component is not tightened properly or is cracked, it can allow oil to escape from the oil pan. Lastly, keep an eye on the engine seals, such as the rear main seal or camshaft seals, as these can deteriorate with age and contribute to oil leaks. Addressing these issues promptly is essential not only for maintaining the vehicle's performance but also for preventing more severe engine damage down the line. Regular inspections and maintenance can help you catch these problems early, ensuring your Mazda CX-5 runs smoothly.

How urgent is it to address the oil leak in my 2016 Mazda CX-5?

Addressing an oil leak in your 2016 Mazda CX-5 is not just a matter of routine maintenance; it is a pressing issue that requires immediate attention. The urgency stems from the fact that oil leaks can severely compromise your engine's lubrication system, leading to increased friction and heat that may result in catastrophic engine damage. Furthermore, neglecting an oil leak can cause your oil levels to drop dangerously low, which not only risks overheating but could also lead to engine seizure, resulting in expensive repairs that could have been easily avoided. Additionally, the safety implications cannot be overlooked; leaking oil can create hazardous conditions, as it may drip onto hot engine components, increasing the risk of 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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