2016 Mercedes-Benz GLE450 AMG Is Leaking Oil

Address Oil Leaks in Your 2016 Mercedes-Benz GLE450 AMG 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 2016 Mercedes-Benz GLE450 AMG 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 2016 Mercedes-Benz GLE450 AMG 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 are the steps to diagnose the oil leak in a 2016 Mercedes-Benz GLE450 AMG?

When diagnosing an oil leak in a 2016 Mercedes-Benz GLE450 AMG, it's essential to adopt a systematic approach that begins with a thorough visual inspection. Start by examining the engine bay and undercarriage for any visible signs of oil, such as puddles or stains, which can provide immediate clues about the leak's location. Next, check the oil levels to determine if there has been a significant loss, as low oil levels often indicate a leak. Pay close attention to the oil filter and drain plug, ensuring they are secure and free from leaks. If the source remains elusive, consider performing a pressure test on the oil system, which can help identify leaks using UV dye. Additionally, inspect gaskets and seals, as these are common culprits for oil leaks, and examine hoses and lines for any signs of wear or loose connections. Finally, using a diagnostic scanner to check for error codes can offer further insights into potential issues. If these steps do not reveal the source of the leak, consulting a qualified mechanic is advisable for a professional assessment. This methodical approach not only aids in accurately diagnosing the problem but also helps in implementing effective solutions.

What are the common causes of oil leaks in a 2016 Mercedes-Benz GLE450 AMG?

When dealing with oil leaks in a 2016 Mercedes-Benz GLE450 AMG, 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, often resulting in oil seeping from the top of the engine. It's also important to check the oil filter housing gasket, as a faulty seal in this area can cause oil to leak around the oil filter. For those with older vehicles, leaking oil cooler lines can be a concern, as they may develop cracks or wear that lead to seepage. Lastly, inspect the oil seals around the crankshaft and camshaft, as these can crack or become damaged, contributing to oil leaks. By being aware of these potential issues, DIY enthusiasts can take proactive steps to diagnose and fix oil leaks, ensuring their vehicle remains in optimal condition. Regular maintenance and thorough inspections are key to catching these problems early and preventing further engine damage.

How urgent is it to address the oil leak in my 2016 Mercedes-Benz GLE450 AMG?

Addressing an oil leak in your 2016 Mercedes-Benz GLE450 AMG is not just a matter of routine maintenance; it is a pressing issue that requires immediate attention. Ignoring an oil leak can lead to severe engine damage due to insufficient lubrication, which is vital for the smooth operation of your vehicle. Additionally, the presence of leaking oil increases the risk of fire hazards, especially when it comes into contact with hot engine components. Continuing to drive with an oil leak can exacerbate the problem, leading to more extensive and costly repairs down the line. By tackling the oil leak promptly, you not only safeguard the performance and longevity of your vehicle but also ensure your safety on the road. Therefore, it is crucial to prioritize this issue and take action as soon as possible to prevent further complications.

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