2019 Mercedes-Benz SL63 AMG Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2019 Mercedes-Benz SL63 AMG and How to Address Them

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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 2019 Mercedes-Benz SL63 AMG 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 2019 Mercedes-Benz SL63 AMG 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 steps to diagnose the oil leak in a 2019 Mercedes-Benz SL63 AMG?

To effectively diagnose an oil leak in a 2019 Mercedes-Benz SL63 AMG, start with a thorough visual inspection of the engine and the area beneath the vehicle. Look for any signs of oil pooling or dripping, as these can provide immediate clues about the leak's source. Next, check the oil levels to assess if there has been a significant loss, which may indicate a leak. Pay close attention to the gaskets and seals around critical components like the oil pan and valve cover, as wear or damage here is a common cause of leaks. If the source remains elusive, consider performing a pressure test on the oil system to help pinpoint the leak's location. For a more precise diagnosis, adding UV dye to the engine oil can be beneficial; running the engine and using a UV light will reveal the leak's origin through the fluorescent dye. If these methods do not yield clear results, or if you feel uncertain about the process, consulting a qualified mechanic is advisable to ensure a professional assessment 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 2019 Mercedes-Benz SL63 AMG?

When dealing with oil leaks in a 2019 Mercedes-Benz SL63 AMG, 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 noticeable oil spots under the vehicle. Another common source of leaks is the valve cover gasket, which can deteriorate and allow oil to escape from the engine. Additionally, the oil filter housing gasket may fail, resulting in leaks around the oil filter area. It's also important to check the seals around the oil cooler, as these can degrade and cause leaks nearby. Lastly, the rear main seal, located at the back of the engine, can develop leaks over time, leading to oil dripping onto the ground. Addressing these leaks promptly is essential to prevent engine damage and maintain the vehicle's performance, making regular inspections and maintenance key to keeping your SL63 AMG in top shape.

How urgent is it to address the oil leak in my 2019 Mercedes-Benz SL63 AMG?

When it comes to addressing an oil leak in your 2019 Mercedes-Benz SL63 AMG, the urgency cannot be overstated. Ignoring this issue can lead to a cascade of problems, starting with the risk of inadequate lubrication for your engine components. As oil levels drop, friction and heat can increase, potentially causing severe engine damage that may require costly repairs. Moreover, maintaining optimal performance is essential for the longevity of your vehicle; a timely fix ensures that your engine operates smoothly and efficiently. Safety is another critical factor; oil leaks can create fire hazards if oil drips onto hot engine parts, putting you and others at risk. Therefore, it is imperative to act quickly and have the leak inspected and repaired by a qualified mechanic to safeguard your vehicle's performance, your safety, and your wallet.

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