2020 Audi S8 Is Leaking Oil

Troubleshooting Oil Leaks in Your 2020 Audi S8: Common Causes and Repair Solutions

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Reviewed by
Andrew Hajjar
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 S8 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 S8 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 identify the source of an oil leak in a 2020 Audi S8?

When tackling an oil leak in your 2020 Audi S8, start with a thorough visual inspection of both the engine bay and the area beneath the vehicle. Look for any visible signs of oil, such as puddles or drips, and check for oil stains on engine components, which can indicate the leak's origin. Next, verify the oil level in the engine; a significant drop may suggest a leak that needs addressing. Pay close attention to the oil filter and drain plug, as these are common culprits for leaks—ensure they are tight and free from oil residue. Additionally, inspect the gaskets and seals, particularly the valve cover gasket and oil pan gasket, as these areas often develop leaks over time. If the source remains elusive, consider performing a pressure test on the oil system to help pinpoint the leak's location. For a more advanced approach, adding UV dye to the engine oil can illuminate the leak under UV light, making it easier to identify. If these steps do not yield results, consulting a qualified mechanic is advisable for a professional diagnosis and repair. By following these diagnostic steps, you can effectively identify and address the oil leak in your Audi S8, ensuring your vehicle remains in optimal condition.

What are the common causes of oil leaks in a 2020 Audi S8?

When dealing with oil leaks in a 2020 Audi S8, it's crucial to understand the common culprits that may be at play. One frequent issue is the degradation of the oil pan gasket, which can wear out over time, leading to leaks. Additionally, valve cover gaskets are known to deteriorate, allowing oil to escape from the top of the engine. Another potential source of leaks is the oil filter housing gasket; if this component fails, oil can leak around the oil filter area. Crankshaft seal leaks are also a concern, as they can occur at both the front and rear of the engine, causing oil to escape. Lastly, issues with the oil cooler seals can result in leaks within the cooling system. Addressing these leaks promptly is essential to prevent engine damage and maintain the performance of your Audi S8. 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 S8?

Addressing an oil leak in a 2020 Audi S8 is of utmost urgency due to the significant risks associated with neglecting this issue. Early detection is crucial, as even a small leak can escalate into severe engine damage if left unattended. The performance and longevity of your vehicle depend on timely repairs, which can save you from costly fixes down the line. Moreover, oil leaks can create hazardous driving conditions, leading to slippery roads and increasing the risk of accidents. From a safety perspective, the potential for engine overheating due to low oil levels further underscores the need for immediate action. Additionally, the environmental impact of leaking oil cannot be overlooked, as it poses a threat to local ecosystems. Therefore, it is essential to prioritize the repair of any oil leaks to ensure the safety, performance, and environmental responsibility of your Audi S8.

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