2010 Mercedes-Benz CLS63 AMG Is Leaking Oil

Address Oil Leaks in Your 2010 Mercedes-Benz CLS63 AMG Effectively

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Reviewed by
Andrew Hajjar
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 2010 Mercedes-Benz CLS63 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 2010 Mercedes-Benz CLS63 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.

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 2010 Mercedes-Benz CLS63 AMG?

To effectively diagnose an oil leak in your 2010 Mercedes-Benz CLS63 AMG, begin with a thorough visual inspection of the engine and undercarriage, looking for any signs of oil accumulation or dripping. This initial step can often reveal the leak's source without further intervention. Next, check the oil levels to determine if there has been a significant loss, which may indicate a leak. Pay close attention to the oil filter and drain plug, as these components are common culprits; ensure they are secure and free from leaks. Inspecting gaskets and seals around the oil pan, valve cover, and oil filter housing is crucial, as wear or damage here can lead to leaks. If the source remains elusive, consider performing a pressure test on the oil system to uncover hidden leaks. For a more advanced method, adding UV dye to the oil can help pinpoint the leak when illuminated with a UV light. If these steps do not yield results, or if the problem appears complex, consulting a qualified mechanic is advisable to ensure proper diagnosis and repair. By following this structured approach, you can efficiently identify and address oil leaks in your vehicle.

What are the common causes of oil leaks in a 2010 Mercedes-Benz CLS63 AMG?

When tackling oil leaks in a 2010 Mercedes-Benz CLS63 AMG, it's crucial to understand the common culprits that may be at play. One of the primary sources of leaks is the valve cover gaskets, which can deteriorate over time, leading to oil seeping out. Similarly, the camshaft solenoid cover gaskets are known to fail, contributing to the problem. Another frequent issue arises from the oil filter housing gaskets, which can wear out and allow oil to escape. Additionally, the oil separator's shaft seals, often referred to as the PCV valve, can become worn, resulting in leaks that may affect the intercooler system. It's also important to inspect the oil filter housing area, as improperly sized o-rings or worn components can lead to leaks. For a thorough diagnosis, pay close attention to the rear of the valve cover and the oil filter housing, particularly around the starter motor area, as these spots are common leak points. Addressing these issues promptly is essential to maintain the performance and longevity of your vehicle.

How urgent is it to address the oil leak in my 2010 Mercedes-Benz CLS63 AMG?

Addressing an oil leak in your 2010 Mercedes-Benz CLS63 AMG is not just a matter of convenience; it is a critical maintenance task that requires immediate attention. Ignoring an oil leak can lead to severe engine damage due to inadequate lubrication, which may result in overheating or even catastrophic engine failure. Additionally, the environmental impact of oil leaks cannot be overlooked, as they can contaminate soil and water sources, contributing to pollution. From a financial perspective, early intervention is key; addressing the leak promptly can save you from incurring more significant repair costs down the line. Therefore, it is essential to assess the severity of the leak and take action as soon as possible to ensure the longevity and performance of your vehicle.

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2010 Mercedes-Benz CLS63 AMG Leaking Oil: Causes & Repairs