2019 BMW 750i XDrive Is Leaking Oil

Address Oil Leaks in Your 2019 BMW 750i xDrive 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 2019 BMW 750i 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 2019 BMW 750i 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 are the steps to diagnose the oil leak in a 2019 BMW 750i xDrive?

To diagnose an oil leak in your 2019 BMW 750i xDrive, start by locating the leak. Begin by inspecting the area where you typically park your vehicle for any oil spots or puddles, as these can provide initial clues. Next, check the oil level in the engine; a significant drop may indicate a leak that needs attention. Move on to a thorough inspection of the engine components, focusing on areas like the valve cover gasket, oil pan gasket, and oil filter housing, as these are common leak points. Don’t forget to examine the oil filter and the oil drain plug for any signs of damage or looseness. If the source remains elusive, consider adding UV dye to the engine oil and using a UV light to pinpoint the leak. For a more advanced approach, performing a pressure test on the oil system can help identify hidden leaks. If these steps do not yield results, consulting a professional mechanic is advisable for a comprehensive diagnosis and repair. By following this structured diagnostic approach, you can effectively tackle oil leaks in your BMW, ensuring your vehicle remains in optimal condition.

What are the common causes of oil leaks in a 2019 BMW 750i xDrive?

When dealing with oil leaks in a 2019 BMW 750i xDrive, it's crucial to understand the common culprits that may be at play. One of the primary causes is the degradation of gaskets and seals, particularly the valve cover gasket, oil pan gasket, and camshaft seals, which can wear out over time and lead to leaks. Additionally, a faulty oil filter housing gasket can also contribute to oil escaping from the engine. Another area to inspect is the oil cooler and its lines, as leaks can occur here as well. It's also important to check the oil pan for any signs of damage, whether from corrosion or physical impact, as this can create openings for oil to leak out. Lastly, don’t overlook the oil drain plug and its seal, as issues here can also result in oil loss. By regularly inspecting these components, DIY enthusiasts can catch potential problems early, ensuring the longevity and performance of their BMW.

How urgent is it to address the oil leak in my 2019 BMW 750i xDrive?

Addressing an oil leak in your 2019 BMW 750i xDrive is not just a matter of routine maintenance; it is a pressing issue that requires immediate attention. Oil is vital for lubricating engine components, and a leak can lead to a significant loss of oil, which may result in severe engine damage due to inadequate lubrication. Moreover, the presence of leaking oil creates a fire hazard, especially if it comes into contact with hot engine parts, posing a serious safety risk. Ignoring this issue can lead to escalating damage to the engine and other critical components, ultimately resulting in more expensive repairs down the line. Therefore, it is crucial to act swiftly and address any oil leaks to maintain the performance, safety, and longevity of your BMW 750i xDrive.

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