2019 Mercedes-Benz AMG GT S Is Leaking Oil

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

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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 2019 Mercedes-Benz AMG GT S 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 AMG GT S 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

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 AMG GT S?

To effectively diagnose an oil leak in your 2019 Mercedes-Benz AMG GT S, begin with a thorough visual inspection of the engine and undercarriage, looking for any signs of oil accumulation or dripping. This initial step can often reveal the source of the leak without further intervention. Next, check the oil levels to determine if there has been a significant loss, which may indicate a leak. Pay close attention to the oil filter and drain plug, as these components can sometimes be the culprits; ensure they are secure and free from leaks. Additionally, inspect the gaskets and seals for any signs of wear or damage, as these are common areas where leaks can occur. If the source remains elusive, consider performing a pressure test on the oil system to uncover hidden leaks. For a more advanced approach, adding UV dye to the engine oil can help; after running the engine, use a UV light to spot any leaks, as the dye will fluoresce. If these methods do not yield results, or if the situation appears complex, consulting a qualified mechanic is advisable for a professional assessment and repair. By following this structured diagnostic approach, you can efficiently identify and address oil leaks in your vehicle.

What are the common causes of oil leaks in a 2019 Mercedes-Benz AMG GT S?

When dealing with oil leaks in a 2019 Mercedes-Benz AMG GT S, it's crucial to understand the common problems that may arise. One of the primary culprits is the degradation of gaskets and seals, which can wear out over time, leading to leaks. Additionally, a loose or improperly installed oil pan can create gaps that allow oil to escape, so ensuring that the oil pan is securely fastened is essential. Another frequent issue is a faulty oil filter or oil filter housing, which can also contribute to leaks if not functioning correctly. Furthermore, inspect the oil pan for any cracks or damage, as these can lead to significant oil loss. Lastly, a worn-out oil drain plug can be a simple yet often overlooked source of leaks, so checking its condition and tightness is advisable. By being aware of these common causes, DIY enthusiasts can take proactive steps to identify and address oil leaks, ultimately maintaining the performance and longevity of their vehicle.

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

When dealing with an oil leak in your 2019 Mercedes-Benz AMG GT S, the urgency of addressing the problem cannot be overstated. Ignoring an oil leak can lead to severe engine damage, as the lack of proper lubrication can cause components to wear out prematurely or even fail. This not only jeopardizes the performance of your vehicle but can also result in costly repairs that far exceed the expense of a simple fix. Additionally, oil leaks pose safety risks; oil on the road can create hazardous driving conditions, increasing the likelihood of accidents. Furthermore, neglecting maintenance issues like oil leaks can diminish your car's resale value, as potential buyers are often wary of vehicles with a history of neglect. Therefore, it is essential to act swiftly and have the leak inspected and repaired by a qualified mechanic to ensure your vehicle remains safe, reliable, and retains its value over time.

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2019 Mercedes-Benz AMG GT S Oil Leak Causes & Repairs