2022 Mercedes-Benz CLA250 Is Leaking Oil

Address Oil Leaks in Your 2022 Mercedes-Benz CLA250 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 2022 Mercedes-Benz CLA250 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 2022 Mercedes-Benz CLA250 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 initial diagnostic steps to identify the source of the oil leak in a 2022 Mercedes-Benz CLA250?

When faced with an oil leak in your 2022 Mercedes-Benz CLA250, the first step is to conduct a thorough visual inspection of both the engine and the area beneath the vehicle. Look for any visible signs of oil, such as puddles or stains, which can help you pinpoint the general location of the leak. Next, check the oil levels to determine if there has been a significant loss, as this can indicate a leak's severity. Pay close attention to the oil filter and drain plug, ensuring they are secure and free from any signs of leakage. Additionally, inspect the gaskets and seals around critical engine components like the valve cover and oil pan for any wear or damage that could be contributing to the leak. If the source remains elusive, consider performing a pressure test on the oil system to uncover hidden leaks. For a more advanced approach, adding UV dye to the engine oil can be particularly effective; when illuminated with a UV light, the dye will glow, revealing the exact location of the leak. By following these diagnostic steps, you can systematically identify and address the source of the oil leak, empowering you to tackle the issue with confidence.

What are the common causes of oil leaks in a 2022 Mercedes-Benz CLA250?

When diagnosing oil leaks in a 2022 Mercedes-Benz CLA250, it's essential to be aware of the common issues that can lead to such problems. One of the primary sources of oil leaks is the oil pan gasket, which can deteriorate over time, resulting in leaks that may affect engine performance. Another critical area to examine is the valve cover gasket; if it becomes worn or damaged, it can allow oil to seep out, often going unnoticed until it leads to more severe complications. The oil filter housing gasket is also susceptible to failure, and if it is compromised, it can create leaks that may impact nearby components. Additionally, the seals on the oil cooler can crack or sustain damage, causing oil to leak from the cooler itself. Lastly, the oil drain plug should not be overlooked, as a damaged or improperly tightened plug can be a straightforward yet significant source of oil leaks. Regular maintenance and timely inspections are vital to identifying and addressing these issues, ensuring the vehicle operates smoothly and preventing potential engine damage.

How urgent is it to address the oil leak in a 2022 Mercedes-Benz CLA250?

Addressing an oil leak in your 2022 Mercedes-Benz CLA250 is not just a matter of routine maintenance; it is a pressing concern that requires immediate attention. Oil is vital for lubricating engine components, and a leak can lead to a significant loss of oil, resulting in inadequate lubrication. This can cause increased friction, which may ultimately damage the engine and lead to costly repairs. Moreover, an oil leak poses serious safety risks, as oil can drip onto hot engine parts, creating a fire hazard. Ignoring this issue can escalate into more severe engine problems over time, potentially culminating in complete engine failure. Therefore, it is crucial to act swiftly and address any signs of an oil leak to safeguard both your vehicle's performance and your safety on the road.

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2022 Mercedes-Benz CLA250 Oil Leak Causes & Repair Costs