2018 Audi RS7 Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2018 Audi RS7 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 2018 Audi RS7 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 Audi RS7 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

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 steps should I take to diagnose the oil leak in my 2018 Audi RS7?

When diagnosing an oil leak in your 2018 Audi RS7, it's essential to adopt a systematic approach that begins with the most straightforward checks. Start by locating the leak; inspect the area beneath your vehicle for any oil drips or puddles, as well as any visible oil stains on the engine or surrounding components. Next, check the oil level to determine if it is consistently low, which could indicate a leak. Pay close attention to gaskets and seals around critical areas such as the oil pan and valve covers, as wear or damage here is a common source of leaks. Additionally, inspect the oil filter and the oil drain plug for any signs of leakage or looseness, as these components can also contribute to oil loss. If these initial checks do not reveal the source of the leak, consider performing a pressure test to accurately identify the leak's location. Should you find the process overwhelming or the issue complex, seeking assistance from a professional mechanic is advisable to ensure a thorough diagnosis and repair. By following this diagnostic approach, you can effectively address the oil leak in your Audi RS7 and maintain its performance.

What are the common causes of oil leaks in a 2018 Audi RS7?

When dealing with oil leaks in a 2018 Audi RS7, 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 and lead to leaks. Similarly, valve cover gaskets are prone to deterioration, resulting in oil escaping from the engine. Another potential source of leaks is the oil filter housing gasket; if this component fails, it can cause significant oil loss. Additionally, issues with the camshaft tensioner gasket can also contribute to leaks, as can a worn rear main seal, which is located at the back of the engine. Addressing these problems promptly is essential to prevent further engine damage and maintain optimal vehicle performance. Regular inspections and maintenance can help you catch these issues early, ensuring your Audi RS7 runs smoothly and efficiently.

How urgent is it to address the oil leak in my 2018 Audi RS7 to prevent potential engine damage?

Addressing an oil leak in your 2018 Audi RS7 is not just a matter of convenience; it is a crucial step in safeguarding your engine's health and performance. Oil leaks can lead to dangerously low oil levels, which are essential for lubricating engine components and preventing excessive friction. This friction can cause overheating, resulting in severe engine damage that could require costly repairs. Moreover, a drop in oil pressure due to a leak can compromise engine function, potentially leading to catastrophic failures like engine seizure. Therefore, it is imperative to act swiftly. If you notice any signs of an oil leak, such as oil spots under your vehicle or a warning light on your dashboard, take the time to inspect the source of the leak. Simple DIY fixes may include tightening loose oil pan bolts or replacing worn gaskets. However, if the leak persists or is substantial, seeking professional assistance is advisable to avoid further damage. By addressing the issue promptly, you not only protect your investment but also ensure the longevity and reliability of your Audi RS7.

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