2023 Mercedes-Benz GLS580 Is Leaking Oil

Common Causes of Oil Leaks in Your 2023 Mercedes-Benz GLS580 and How to Address Them

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Reviewed by
Andrew Hajjar
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 2023 Mercedes-Benz GLS580 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 2023 Mercedes-Benz GLS580 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 2023 Mercedes-Benz GLS580?

To effectively diagnose an oil leak in your 2023 Mercedes-Benz GLS580, begin by locating the leak, which involves checking for visible signs of oil on the ground beneath your vehicle. Once you have a general area, inspect the engine components, focusing on the oil pan, valve cover gasket, oil filter, and oil drain plug, as these are common culprits for leaks. It's also crucial to check the oil level; a significant drop may indicate a serious issue. Pay special attention to the oil filter and oil pan for any signs of damage or loose fittings, as these can exacerbate leaks. Additionally, inspect the gaskets for wear, as compromised gaskets can lead to oil seepage. If the source remains elusive, consider performing a UV dye test, which can help pinpoint the leak when combined with a UV light. Should you find the task overwhelming or the problem complex, consulting a qualified mechanic is advisable to ensure a thorough diagnosis and repair. By following this structured approach, you can efficiently identify and address the oil leak in your vehicle.

What are the common causes of oil leaks in a 2023 Mercedes-Benz GLS580?

When dealing with oil leaks in a 2023 Mercedes-Benz GLS580, it's crucial to understand the common culprits that may be at play. One frequent issue is a degraded or damaged oil pan gasket, which can wear out over time and lead to significant leaks. Additionally, a faulty valve cover gasket can also result in oil seepage, making it essential to inspect this area regularly. Another potential source of leaks is the oil filter housing gasket; if this component is compromised, it can allow oil to escape. Furthermore, cracked or damaged oil cooler seals can lead to leaks from the cooler itself, while a damaged or improperly tightened oil drain plug can cause oil to leak from the oil pan. Addressing these issues promptly is vital to prevent engine damage and maintain optimal vehicle performance. Regular maintenance and thorough inspections can help DIY enthusiasts catch these problems early, ensuring their GLS580 remains in top condition.

How urgent is it to address the oil leak in a 2023 Mercedes-Benz GLS580?

Addressing an oil leak in your 2023 Mercedes-Benz GLS580 is not just a matter of routine maintenance; it is a pressing concern that requires immediate attention. Oil is vital for lubricating engine components, and a leak can lead to a significant loss of oil, resulting in inadequate lubrication that may cause severe engine damage. Moreover, the presence of leaking oil creates a fire hazard, especially if it comes into contact with hot engine parts, which can lead to dangerous situations. Continuing to drive with an oil leak can exacerbate the problem, leading to more extensive and costly repairs down the line. By addressing the leak promptly, you not only safeguard your vehicle's performance and reliability but also protect yourself and others from potential safety risks. Therefore, if you notice any signs of an oil leak, it is crucial to take action immediately to prevent further complications and ensure the longevity of your vehicle.

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2023 Mercedes-Benz GLS580 Oil Leak Causes & Repairs