2021 Mercedes-Benz AMG GT Is Leaking Oil

Address Oil Leaks in Your 2021 Mercedes-Benz AMG GT Effectively

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Reviewed by
Devin Cabugcal
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 2021 Mercedes-Benz AMG GT 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 2021 Mercedes-Benz AMG GT 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 potential causes of an oil leak in a 2021 Mercedes-Benz AMG GT, and how should I diagnose them?

When diagnosing an oil leak in your 2021 Mercedes-Benz AMG GT, it's essential to adopt a systematic approach that prioritizes simpler solutions first. Begin by thoroughly cleaning the engine and the area beneath the vehicle to remove any existing oil residue, which will help you identify the source of the leak more easily. Once the area is clean, start the engine and observe where oil begins to pool, as this can provide immediate clues about the leak's origin. Regularly checking your oil levels is also crucial; a significant drop can indicate a leak that needs addressing. Next, inspect the gaskets and seals, particularly the valve cover and oil pan gaskets, for any signs of wear or damage. If the leak remains elusive, consider using UV dye in the engine oil, which can illuminate the leak's source under UV light. If these steps do not yield results, or if you suspect more complex issues such as worn piston rings or valve seals, consulting a qualified mechanic is advisable to ensure a thorough diagnosis and repair. By following this structured diagnostic approach, you can effectively identify and resolve oil leaks in your vehicle.

What are the common causes of oil leaks in a 2021 Mercedes-Benz AMG GT?

When dealing with oil leaks in a 2021 Mercedes-Benz AMG GT, it's essential to understand the common culprits that may be at play. One of the primary causes is the degradation of gaskets and seals, particularly the valve cover gasket, oil pan gasket, and camshaft seals, which can wear out over time and lead to leaks. Additionally, a leaking oil filter housing or oil cooler can contribute to oil loss, so inspecting these components is crucial. Another frequent issue arises from a faulty oil drain plug or its gasket, which can allow oil to escape from the oil pan. It's also important to check for cracks or damage in the oil pan itself, as this can result in significant leaks. Lastly, worn or damaged oil lines and hoses can create leaks in the engine compartment, making regular inspections vital. By being proactive and addressing these potential issues, DIY enthusiasts can maintain their vehicle's performance and prevent further damage.

How urgent is it to address the oil leak in my 2021 Mercedes-Benz AMG GT to prevent potential engine damage?

When dealing with an oil leak in your 2021 Mercedes-Benz AMG GT, the urgency of addressing the issue cannot be overstated. An oil leak, especially from critical components like the engine block or oil pan, can lead to severe engine damage if left unattended. Regularly monitoring your oil levels is essential; a significant leak can result in rapid oil loss, compromising the engine's lubrication and increasing the risk of catastrophic failure. Additionally, be vigilant for warning lights on your dashboard that signal low oil pressure or engine problems, as ignoring these alerts can exacerbate the situation. While DIY repairs may seem tempting, it is wise to seek a professional inspection to accurately assess the leak's severity and receive tailored advice on necessary repairs. Following manufacturer recommendations is also crucial, as they provide specific guidelines that can help maintain your vehicle's performance and longevity. In summary, addressing an oil leak promptly is vital to safeguard your engine and ensure the continued reliability of your Mercedes-Benz AMG GT.

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2021 Mercedes-Benz AMG GT Oil Leak Causes & Solutions