2014 Audi S6 Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2014 Audi S6 and How to Address Them Effectively

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Reviewed by
Bo Fader
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 2014 Audi S6 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 2014 Audi S6 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 2014 Audi S6?

When faced with an oil leak in your 2014 Audi S6, the first step is to conduct a thorough visual inspection of both the engine bay and the area beneath the vehicle. Look for any visible signs of oil, such as drips or pools, which can help you pinpoint the leak's origin. Next, check the oil levels to ensure they are adequate; a significant drop may indicate a serious leak that requires immediate attention. Pay special attention to the oil filter and drain plug, as these components are common culprits for leaks—tightening or replacing them can often resolve the issue. Additionally, inspect the gaskets and seals, particularly the valve cover gasket and oil pan gasket, as wear and tear in these areas frequently lead to leaks. If the source remains elusive, consider performing a pressure test on the oil system, which can reveal hidden leaks that are not visible during a standard inspection. Finally, using a diagnostic scanner to check for error codes related to the oil system can provide further insights into the problem. By following these steps, you can effectively diagnose and address the oil leak in your Audi S6, ensuring your vehicle remains in optimal condition.

What are the common causes of oil leaks in a 2014 Audi S6?

When dealing with oil leaks in a 2014 Audi S6, it's crucial to understand the common culprits that may be at play. One of the primary sources of leaks is the valve cover gaskets, which can deteriorate over time, leading to noticeable oil seepage. Another frequent issue arises from the oil pan gasket, which may wear out or sustain damage, resulting in oil leaking from the engine's base. Additionally, the oil filter housing gasket can become faulty, causing leaks around the oil filter area. It's also important to consider the camshaft seals, as these can leak and contribute to oil loss. Lastly, a failing rear main seal can lead to significant oil leaks from the rear of the engine. Addressing these issues promptly is essential to prevent further engine damage and maintain optimal vehicle performance. Regular inspections and maintenance can help you catch these problems early, ensuring your Audi S6 runs smoothly.

How urgent is it to address the oil leak in my 2014 Audi S6?

Addressing an oil leak in your 2014 Audi S6 is not just a matter of routine maintenance; it is an urgent issue that requires immediate attention. Oil leaks can significantly reduce oil levels, leading to inadequate lubrication of engine components, which can cause severe damage over time. Furthermore, neglecting an oil leak can result in engine overheating, potentially leading to costly repairs or even complete engine failure. The safety risks associated with oil leaks cannot be overlooked either, as leaking oil can drip onto hot engine parts, creating a fire hazard. By regularly monitoring for oil leaks and addressing them promptly, you can maintain your vehicle's performance and longevity. Therefore, it is crucial to take action as soon as you notice any signs of an oil leak to prevent further damage and ensure the safe operation of your Audi S6.

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2014 Audi S6 Oil Leak Causes & Diagnosis | RepairPal