2022 Mercedes-Benz GLA35 AMG Is Leaking Oil

Diagnosing Oil Leak Sources in Your 2022 Mercedes-Benz GLA35 AMG and Recommended Repair Solutions

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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 GLA35 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 2022 Mercedes-Benz GLA35 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 an oil leak in a 2022 Mercedes-Benz GLA35 AMG?

To effectively diagnose an oil leak in your 2022 Mercedes-Benz GLA35 AMG, begin with a thorough visual inspection of the engine and undercarriage, looking for any obvious signs of oil, such as puddles or stains. Next, check the oil levels to determine if there has been a significant loss, which could indicate a leak. Pay close attention to the oil filter and drain plug, as these components are common culprits for leaks; ensure they are secure and free from oil residue. Additionally, examine the gaskets and seals throughout the engine for any signs of wear or damage that could contribute to the leak. If the source remains elusive, consider performing a pressure test on the oil system to detect hidden leaks. For a more precise diagnosis, you can introduce UV dye into the engine oil and use a UV light after running the engine to identify the exact leak location. If these steps do not yield results or if the situation appears complicated, it is wise to consult a qualified mechanic or dealership for professional assistance. By following this structured diagnostic approach, you can systematically identify and address the oil leak issue in your vehicle.

What are the common causes of oil leaks in a 2022 Mercedes-Benz GLA35 AMG?

When dealing with oil leaks in a 2022 Mercedes-Benz GLA35 AMG, it's essential to understand the common culprits that may be at play. One frequent issue is a degraded or damaged oil pan gasket, which can fail over time, allowing oil to seep out. Similarly, the oil filter housing gasket can wear down, leading to leaks if not replaced promptly. Another area to inspect is the valve cover gasket; a faulty or worn gasket can result in oil escaping from the engine. Additionally, the oil cooler lines, which transport oil to and from the cooler, can develop cracks or leaks, contributing to oil loss. Lastly, a cracked or damaged oil pan itself can be a significant source of leaks. By being aware of these potential issues and conducting regular inspections, DIY enthusiasts can take proactive steps to maintain their vehicle's performance and prevent costly repairs.

How urgent is it to address the oil leak in my 2022 Mercedes-Benz GLA35 AMG?

Addressing an oil leak in your 2022 Mercedes-Benz GLA35 AMG is not just a matter of routine maintenance; it is a pressing issue that requires immediate attention. An oil leak can lead to a significant drop in oil levels, which compromises the lubrication of essential engine components, increasing the risk of severe damage over time. Moreover, neglecting this issue can result in engine overheating, potentially leading to costly repairs or even catastrophic engine failure. The safety implications are equally concerning, as leaking oil can drip onto hot engine parts, creating a fire hazard. By promptly addressing the oil leak, you not only safeguard your vehicle's performance and longevity but also protect yourself and others on the road from potential dangers. Therefore, it is crucial to take action without delay to mitigate these risks and ensure the continued reliability of your Mercedes-Benz GLA35 AMG.

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