2013 Mercedes-Benz ML550 Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2013 Mercedes-Benz ML550 and How to Address Them

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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 2013 Mercedes-Benz ML550 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 2013 Mercedes-Benz ML550 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 2013 Mercedes-Benz ML550?

To effectively diagnose an oil leak in your 2013 Mercedes-Benz ML550, begin with a systematic approach that prioritizes simplicity and thoroughness. Start by locating the leak; check beneath the vehicle for any visible oil drips or pools, as this can provide immediate clues about the source. Next, inspect the engine compartment for oil splatters around critical components like the oil filter, oil pan, and valve cover gasket, as these areas are common culprits for leaks. It's also essential to check the oil level; a significant drop may indicate a leak that needs addressing. Pay close attention to the oil filter, as a damaged or improperly installed filter can lead to leaks. Additionally, examine the oil pan for cracks or damage, which can also be a source of oil loss. The valve cover gasket should not be overlooked, as wear and tear in this area can result in leaks as well. If these steps do not reveal the source of the leak, or if the problem seems complex, consulting a qualified mechanic is advisable for a more detailed inspection and repair. By following this diagnostic approach, you can efficiently identify and address the oil leak in your vehicle.

What are the common causes of oil leaks in a 2013 Mercedes-Benz ML550?

When dealing with oil leaks in a 2013 Mercedes-Benz ML550, it's crucial to understand the common culprits that may be at play. One frequent issue is the degradation of the oil pan gasket, which can lead to noticeable oil seepage over time. Additionally, valve cover gaskets are prone to wear and can result in leaks around the engine's upper section. Another area to inspect is the oil filter housing gasket, as its deterioration can also cause oil to escape. The oil cooler seals are yet another potential source of leaks, often failing and allowing oil to leak from this component. Lastly, the rear main seal, located at the back of the engine, can develop leaks as it ages. Addressing these leaks promptly is essential not only for maintaining engine performance but also for preventing further damage. Regular inspections and maintenance can help you catch these issues early, allowing for a DIY approach to repairs and ensuring your vehicle remains in optimal condition.

How urgent is it to address the oil leak in my 2013 Mercedes-Benz ML550?

Addressing an oil leak in your 2013 Mercedes-Benz ML550 is not just a matter of routine maintenance; it is a critical issue that requires immediate attention. Ignoring an oil leak can lead to severe engine damage, as oil is vital for lubrication and cooling. Without adequate oil levels, your engine may overheat or suffer from increased friction, leading to costly repairs that could have been avoided. Moreover, an oil leak poses safety risks, as spilled oil can create hazardous driving conditions, increasing the likelihood of accidents. By addressing the leak promptly, you not only protect your vehicle's performance but also ensure your safety and that of others on the road. Taking swift action can save you money in the long run, as early intervention often prevents more extensive and expensive repairs down the line. Therefore, if you notice any signs of an oil leak, it is crucial to act quickly to maintain the integrity and longevity of your ML550.

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