2024 BMW M850i XDrive Is Leaking Oil

Troubleshooting Oil Leaks in Your 2024 BMW M850i xDrive: Causes and Solutions for a Smooth Ride

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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 2024 BMW M850i xDrive 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 2024 BMW M850i xDrive 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 steps should I take to diagnose the oil leak in my 2024 BMW M850i xDrive?

To effectively diagnose an oil leak in your 2024 BMW M850i xDrive, begin by locating the source of the leak. This involves checking underneath the vehicle for any visible oil drips or pooling, as well as inspecting the engine and transmission for oil stains or wet spots. Once you have a general area identified, verify the oil level in the engine; a significant drop may indicate a leak that needs immediate attention. Next, examine the gaskets and seals within the engine bay, focusing on common leak-prone areas such as the valve cover gasket and oil pan gasket. Additionally, inspect all oil hoses and lines for any signs of wear, cracks, or loose connections, as these can also contribute to leaks. For a more precise diagnosis, consider adding UV dye to the engine oil and using a UV light after running the engine briefly; this method can help illuminate the exact source of the leak. If these steps do not lead to a clear resolution, or if the problem appears to be more complex, consulting a professional mechanic is advisable, as they possess the necessary expertise and tools to address the issue effectively. By following this structured approach, you can systematically identify and address the oil leak in your BMW, ensuring your vehicle remains in optimal condition.

What are the common causes of oil leaks in a 2024 BMW M850i xDrive?

Understanding the common causes of oil leaks in a 2024 BMW M850i xDrive is essential for any DIY enthusiast looking to maintain their vehicle. One of the primary culprits is the degradation of gaskets and seals, which can occur over time due to exposure to heat and engine vibrations. This includes critical components like the valve cover gaskets and oil pan gaskets, which can lead to significant leaks if not addressed. Additionally, the oil filter housing gasket is another area prone to wear, and if it fails, it can result in oil seeping from the housing. It's also important to inspect the oil pan itself, as any cracks or corrosion can create leaks that may go unnoticed until they cause more serious issues. Furthermore, a loose or damaged oil drain plug can be a simple yet often overlooked source of leaks, so ensuring it is properly tightened is crucial. Lastly, keep an eye on the engine components for any signs of cracks, as these can lead to oil leaks that may require more extensive repairs. Regular maintenance and inspections can help identify these issues early, allowing for timely repairs and preventing further damage to your BMW.

How urgent is it to address the oil leak in my 2024 BMW M850i xDrive?

Addressing an oil leak in your 2024 BMW M850i xDrive is not just a matter of routine maintenance; it is an urgent issue that requires immediate attention. An oil leak can significantly reduce oil levels, leading to inadequate lubrication of engine components, which may result in severe engine damage over time. Furthermore, neglecting this issue can cause the engine to overheat, potentially leading to costly repairs or even complete engine failure. The safety implications are equally concerning, as leaking oil can drip onto hot engine parts, creating a fire hazard. Therefore, it is crucial to act swiftly and resolve any oil leak to safeguard your vehicle's performance and ensure your safety on the road.

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