2018 Porsche 718 Cayman Is Leaking Oil

Address Oil Leaks in Your 2018 Porsche 718 Cayman 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 Porsche 718 Cayman 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 Porsche 718 Cayman 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.

An oil leak may be noted on the ground where the vehicle is parked. However, many vehicles have plastic trays underneath the engine that may catch leaking oil and conceal the leak. In such cases, a low oil level, a burning oil smell, or even smoke from oil burning in the engine bay may be noted.

»MORE: Signs of a bad oil pan gasket

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 steps to diagnose the oil leak in a 2018 Porsche 718 Cayman?

To effectively diagnose an oil leak in a 2018 Porsche 718 Cayman, begin with a thorough visual inspection of the engine and undercarriage, looking for any signs of oil accumulation or dripping. This initial step can often reveal the source of the leak without further intervention. Next, check the oil levels to determine if there has been a significant loss, which may indicate a leak. Pay close attention to the oil filter and drain plug, as these components can sometimes be the culprits; ensure they are secure and free from leaks. Additionally, inspect the gaskets and seals, particularly the valve cover gasket, oil pan gasket, and camshaft seals, for any signs of wear or damage. If the source remains elusive, consider performing a pressure test on the oil system, which can help identify leaks using air pressure and UV dye. Should these steps not yield results, it may be prudent to consult a professional mechanic or an authorized Porsche service center for a comprehensive diagnosis and repair. By following this structured approach, you can systematically identify and address the oil leak issue in your vehicle.

What are the common causes of oil leaks in a 2018 Porsche 718 Cayman?

When diagnosing oil leaks in a 2018 Porsche 718 Cayman, it's crucial to consider several common problems that may be at play. One of the primary culprits is a degraded or damaged oil pan gasket, which can wear out over time and lead to significant leaks. Additionally, a faulty oil filter housing gasket can also contribute to oil leakage, as it may not create a proper seal. Another area to inspect is the valve cover gaskets, which can deteriorate and allow oil to escape from the engine. Furthermore, a cracked or damaged oil cooler can be a source of leaks, as can a loose or damaged oil drain plug, which may not hold oil securely in the pan. Addressing these issues promptly is essential to prevent further engine damage and maintain the vehicle's performance. Regular inspections and maintenance can help you catch these problems early, allowing for effective DIY repairs and ensuring your Porsche remains in top condition.

How urgent is it to address the oil leak in my 2018 Porsche 718 Cayman?

Addressing an oil leak in your 2018 Porsche 718 Cayman is not just a matter of convenience; it is crucial for the longevity and performance of your vehicle. Oil is vital for lubricating engine components, and a leak can lead to a significant loss of oil, resulting in increased friction and heat that may cause severe engine damage. The urgency of fixing an oil leak cannot be overstated, as neglecting it can lead to more extensive and costly repairs down the line. Additionally, an unresolved leak can worsen over time, potentially leading to further leaks and complications that could compromise the safety and functionality of your car. By taking prompt action to repair the leak, you not only safeguard your engine but also maintain the overall health of your Porsche, ensuring it continues to perform at its best. Therefore, if you notice any signs of an oil leak, it is imperative to address the issue immediately to avoid more significant problems in the future.

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