Mercedes-Benz GLE63 AMG S Is Leaking Oil

Common Causes of Oil Leaks in Your Mercedes-Benz GLE63 AMG S 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 Mercedes-Benz GLE63 AMG 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 Mercedes-Benz GLE63 AMG 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.

Troubleshooting Oil Leaks in a Mercedes-Benz GLE63 AMG S

When troubleshooting oil leaks in your Mercedes-Benz GLE63 AMG S, begin by conducting a visual inspection of the engine and surrounding areas to identify any obvious signs of oil accumulation. Check common leak points such as the oil separator, cam plugs, and seals, as these are frequent culprits in Mercedes vehicles. If you notice oil pooling or streaks, take note of their location, as this can help narrow down the source of the leak. Next, assess the condition of the seals and gaskets; worn or cracked components often lead to leaks. If the issue isn't immediately apparent, consider performing a pressure test to check for leaks in the oil system. This method can help pinpoint less visible leaks that may not be detectable through visual inspection alone. Remember, while DIY troubleshooting is valuable, if you encounter complex issues or if the leak persists after your initial efforts, consulting a professional mechanic is advisable to ensure a thorough diagnosis and repair. By following this structured approach, you can effectively address oil leaks and maintain the performance and longevity of your luxury vehicle.

How to Diagnose and Fix Oil Leaks in a Mercedes-Benz GLE63 AMG S?

When tackling oil leaks in your Mercedes-Benz GLE63 AMG S, understanding common problems associated with the engine and its components is essential for effective diagnosis and repair. Common issues often stem from worn seals, gaskets, or even faulty oil filters, which can lead to oil seeping out and creating visible leaks. Additionally, the oil pan and valve cover gaskets are frequent culprits, especially in older models or those with high mileage. It's also important to consider less frequent issues such as a cracked engine block or a damaged oil cooler, which can contribute to more severe leaks. By familiarizing yourself with these potential failure modes, you can better identify the source of the leak during your inspection. This knowledge not only aids in pinpointing the problem but also helps you determine the necessary repairs, ensuring that your vehicle remains in optimal condition and preventing further damage.

Why is it Critical to Address Oil Leaks in a Mercedes-Benz GLE63 AMG S?

Addressing oil leaks in your Mercedes-Benz GLE63 AMG S is not just a matter of routine maintenance; it is an urgent necessity that can prevent severe consequences. Ignoring even minor oil leaks can lead to catastrophic engine damage, as oil is vital for lubricating moving parts and ensuring optimal performance. A small leak today can escalate into a major repair tomorrow, costing you significantly more in both time and money. Moreover, oil leaks can create dangerous driving conditions, as spilled oil on the road reduces traction and increases the risk of accidents. This not only endangers your safety but also that of your passengers and other road users. Additionally, a vehicle with unresolved oil leaks can suffer a decline in resale value, as potential buyers are often wary of cars that show signs of neglect. Therefore, it is crucial to act swiftly and address any oil leaks to maintain the integrity, performance, and safety of your vehicle while preserving its value for the future.

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