2020 Audi S5 Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2020 Audi S5 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 Audi S5 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 Audi S5 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 diagnostic steps to take for an oil leak in a 2020 Audi S5?

When faced with an oil leak in your 2020 Audi S5, it's essential to adopt a systematic diagnostic approach to effectively identify and address the issue. Begin with a thorough visual inspection of both the engine bay and the area beneath the vehicle, looking for any signs of oil accumulation or dripping. This initial step can often reveal the leak's source. Next, check the oil levels to ensure they are within the recommended range; a significant drop may indicate a serious leak that requires immediate attention. Pay close attention to the oil filter and drain plug, as these components are common culprits for leaks—tightening or replacing them can sometimes resolve the issue. Additionally, inspect the gaskets and seals, particularly the valve cover and oil pan gaskets, as these areas frequently develop leaks over time. If the source remains elusive, consider performing a pressure test on the oil system, which can help detect leaks that are not immediately visible. Finally, using a diagnostic scanner to check for error codes can provide further insights into potential issues within the oil system. If these steps do not lead to a resolution, consulting a qualified mechanic is advisable to ensure a thorough diagnosis and repair. By following this structured approach, you can effectively troubleshoot and manage an oil leak in your Audi S5.

What are the common causes of oil leaks in a 2020 Audi S5?

When dealing with oil leaks in a 2020 Audi S5, 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. Additionally, valve cover gaskets are known to deteriorate, causing oil to seep from the top of the engine. Another potential source of leaks is the oil filter housing gasket; if this component fails, oil can escape around the oil filter area. Oil cooler seals can also develop leaks, resulting in oil loss, while a leaking rear main seal can create significant issues at the back of the engine. Addressing these leaks promptly is essential to prevent further damage and maintain the performance of your Audi S5. Regular inspections and maintenance can help you catch these problems early, ensuring your vehicle remains in optimal condition.

How urgent is it to address an oil leak in a 2020 Audi S5?

Addressing an oil leak in your 2020 Audi S5 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, which may result in costly repairs that far exceed the expense of a timely fix. Early detection is key, as it allows you to mitigate risks and maintain the vehicle's performance and longevity. Additionally, an oil leak can create hazardous driving conditions, increasing the likelihood of accidents due to slippery roads or unexpected engine failure. Beyond personal safety, there are environmental considerations; oil leaks can have detrimental effects on the surrounding ecosystem. Therefore, if you notice any signs of an oil leak, it is crucial to act swiftly to prevent further complications and ensure the continued reliability of your Audi S5.

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2020 Audi S5 Oil Leak Causes & Repairs | RepairPal