2018 Mercedes-Benz GLE550e Is Leaking Oil

Address Oil Leaks in 2018 Mercedes-Benz GLE550e Effectively

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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 2018 Mercedes-Benz GLE550e 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 2018 Mercedes-Benz GLE550e 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 steps should I take to diagnose the oil leak in my 2018 Mercedes-Benz GLE550e?

When diagnosing an oil leak in your 2018 Mercedes-Benz GLE550e, it's essential to adopt a systematic approach that begins with the most straightforward checks. Start by locating the leak; inspect the area beneath your vehicle for any visible oil drips or pooling, and examine the engine and transmission for oil stains. Next, check the oil level in the engine, as a significant drop may indicate a leak. Pay close attention to the oil filter and drain plug, ensuring they are secure and free from leaks. Gaskets and seals are common culprits for oil leaks, so inspect the valve cover gasket, oil pan gasket, and camshaft seals for any signs of wear or damage. Additionally, the oil cooler should be examined for leaks, as it can also contribute to oil loss. If the source of the leak remains elusive, consider adding UV dye to the engine oil; this will help you pinpoint the leak when using a UV light after running the engine. If these steps do not yield results, or if the problem appears complex, consulting a qualified mechanic is advisable for a thorough diagnosis and repair. By following this diagnostic approach, you can effectively identify and address the oil leak in your vehicle.

What are the common causes of oil leaks in a 2018 Mercedes-Benz GLE550e?

When dealing with oil leaks in a 2018 Mercedes-Benz GLE550e, 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 lead to significant oil loss over time. Additionally, worn-out valve cover gaskets are another common source of leaks, as they can become brittle and fail to seal properly, allowing oil to escape from the top of the engine. Another area to inspect is the oil filter housing gasket; if this component is faulty, it can result in oil leaking around the oil filter, creating a mess and potential performance issues. Furthermore, oil cooler lines are susceptible to wear and tear, which can lead to leaks that may go unnoticed until they cause more serious problems. Lastly, various oil seals, including camshaft and crankshaft seals, can crack or degrade, contributing to oil leaks. By regularly inspecting these components and addressing any signs of wear, DIY enthusiasts can maintain their vehicle's performance and prevent further damage.

How urgent is it to address the oil leak in my 2018 Mercedes-Benz GLE550e?

Addressing an oil leak in your 2018 Mercedes-Benz GLE550e is not just a matter of routine maintenance; it is a pressing issue that requires immediate attention. Ignoring an oil leak can lead to a significant loss of engine oil, which is vital for lubricating engine components and ensuring optimal performance. Without adequate lubrication, you risk severe engine damage, which could result in costly repairs or even a complete engine failure. Moreover, oil leaks can create hazardous conditions, as oil dripping onto hot engine parts can ignite, posing a serious fire risk. By addressing the leak promptly, you not only safeguard your vehicle's performance but also protect yourself and others on the road from potential safety hazards. Therefore, it is crucial to take action as soon as you notice any signs of an oil leak to prevent further damage and ensure the longevity of your vehicle.

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2018 Mercedes-Benz GLE550e Oil Leak Causes & Repair Costs