2018 Mercedes-Benz Metris Is Leaking Oil

Address Oil Leaks in Your 2018 Mercedes-Benz Metris 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 2018 Mercedes-Benz Metris 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.

What are the best Mercedes-Benz repair shops?

RepairPal Certified shops can diagnose and repair your 2018 Mercedes-Benz Metris engine and performance issues. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
27 Certified Locations
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Tuffy Tire & Auto Service Center - Grandview

4.7
(85)
2.39 mi
1524 W 5th Ave
Columbus, OH
Open
Closes 5:00 PM
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Excite Auto Repair & Towing

4.4
(15)
5.94 mi
3430 Westerville Road
Columbus, OH
Open
Closes 6:00 PM
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All In Auto Service

4.9
(25)
6.56 mi
5200 Fisher Road
Columbus, OH
Open
Closes 6:00 PM
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Tuffy Tire & Auto Service - Grove City

4.4
(520)
6.67 mi
2131 Stringtown Rd
Grove City, OH
Open
Closes 6:00 PM
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See All 27 Locations

How much does it cost to fix a 2018 Mercedes-Benz Metris 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 an oil leak in a 2018 Mercedes-Benz Metris?

To effectively diagnose an oil leak in a 2018 Mercedes-Benz Metris, begin with a thorough inspection of the engine bay, undercarriage, and the area where the vehicle is parked to locate any visible signs of oil, such as stains or puddles. This initial step is crucial as it helps identify the potential source of the leak. Next, check the oil level in the engine; a significantly low level may indicate a serious leak that needs prompt attention. Pay close attention to the gaskets and seals, particularly the valve cover gasket, oil pan gasket, and oil filter housing gasket, as these are common areas where leaks occur. Additionally, inspect the oil filter for any signs of damage or leakage, and ensure that the drain plug is securely tightened, as a loose or damaged plug can also contribute to oil loss. If the leak remains undetected, consider performing a pressure test, which can reveal leaks that are not easily visible. By following this structured diagnostic approach, you can systematically assess the situation, starting with the simplest checks and progressing to more complex diagnostics, ultimately leading to an effective resolution of the oil leak issue.

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

When diagnosing oil leaks in a 2018 Mercedes-Benz Metris, 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, leading to leaks. Similarly, a faulty valve cover gasket can also contribute to oil escaping from the engine, making it essential to inspect this component regularly. Another potential source of leaks is the oil filter housing gasket; if this gasket is compromised, it can result in significant oil loss. Additionally, check the oil cooler lines for any cracks or damage, as these can also lead to leaks. Lastly, a loose or damaged drain plug can be a simple yet often overlooked cause of oil leaks. By being aware of these common issues and conducting regular maintenance checks, DIY enthusiasts can effectively manage and resolve oil leak problems in their Metris, ensuring optimal engine performance and longevity.

How urgent is it to address an oil leak in a 2018 Mercedes-Benz Metris?

Addressing an oil leak in a 2018 Mercedes-Benz Metris is not just a matter of routine maintenance; it is a critical issue that demands immediate attention. Ignoring an oil leak can lead to severe engine damage, as the lack of proper lubrication can cause overheating and ultimately result in engine failure. Furthermore, the longer the leak persists, the more extensive the damage can become, leading to costly repairs that could have been easily avoided with prompt action. Additionally, oil leaks can create hazardous driving conditions, increasing the risk of accidents due to compromised vehicle performance. Therefore, for DIY enthusiasts, it is essential to prioritize the detection and repair of oil leaks to maintain the vehicle's safety, performance, and longevity. Taking swift action not only protects your investment but also ensures a safer driving experience.

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