2010 BMW M6 Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2010 BMW M6 and How to Address Them 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 2010 BMW M6 is leaking oil are oil system component failure and leaking engine gaskets.
  • Oil System Components: A failure in oil system components, such as a worn oil pump or clogged oil filter, can lead to 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 BMW M6 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.

An oil leak may be noted on the ground where the vehicle is parked. However, many vehicles have plastic trays underneath the engine that may catch leaking oil and conceal the leak. In such cases, a low oil level, a burning oil smell, or even smoke from oil burning in the engine bay may be noted.

»MORE: Signs of a bad oil pan gasket

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 2010 BMW M6?

To effectively diagnose an oil leak in a 2010 BMW M6, start by identifying the source of the leak, focusing on common culprits such as the valve cover gasket, timing cover gasket, and oil filter housing. Once you have a general idea of where the oil is leaking from, trace the leak to its highest point to pinpoint the exact origin. Cleaning the area around the suspected leak is crucial, as it allows for a clearer inspection and helps you identify any new oil accumulation after driving the vehicle for a short period. After a day or two of driving, recheck the cleaned area for fresh signs of leakage. If the source remains elusive, further diagnosis may be necessary, but avoid removing the transmission unless absolutely required. If no oil residue is found at the engine valley drain hole, consider that the leak might be originating from inside the transmission bellhousing. By following this systematic approach, you can effectively diagnose and address oil leaks in your BMW M6, ensuring a more efficient and informed repair process.

What are the common causes of oil leaks in a 2010 BMW M6?

When dealing with oil leaks in a 2010 BMW M6, it's essential to understand the common culprits that may be at play. One of the primary causes is the deterioration of engine gaskets and seals, which naturally occurs as the vehicle ages and accumulates mileage. The valve cover gasket, in particular, is notorious for wear and can lead to significant oil leaks if not addressed promptly. Additionally, the front timing cover may also become a leak point, especially in higher mileage models, necessitating a thorough inspection and potential gasket replacement. It's important to note that oil leaks may not always be immediately visible, as oil can drip into lower areas or burn off during operation, complicating the diagnosis. Regular maintenance and inspections are crucial for identifying these issues early, ensuring that your BMW M6 remains in optimal condition and preventing more extensive damage down the line.

How urgent is the oil leak issue in a 2010 BMW M6?

When dealing with an oil leak in a 2010 BMW M6, understanding the urgency of the situation is crucial for any DIY enthusiast. Even minor leaks can signal underlying issues that, if left unaddressed, may escalate into significant engine damage or failure. Regularly checking your oil levels and inspecting for oil accumulation around the engine compartment can help you gauge the severity of the leak. If you notice a decrease in oil levels or see oil pooling, it’s essential to act quickly. While some may consider attempting repairs themselves, consulting a certified BMW mechanic is advisable for a proper diagnosis and resolution. Ignoring the leak not only risks your vehicle's performance but can also lead to costly repairs down the line, making prompt action essential for maintaining the health of your engine.

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