2019 BMW 440i XDrive Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2019 BMW 440i xDrive and How to Address Them Effectively

Find Repair Location
Reviewed by
Aisha
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 440i 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 440i 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.

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 2019 BMW 440i xDrive?

To effectively diagnose an oil leak in your 2019 BMW 440i xDrive, begin with a systematic approach that prioritizes simplicity before delving into more complex assessments. Start by locating the leak; inspect the area beneath your vehicle for any visible oil spots or drips, as this can provide immediate clues. Next, check the oil level in your engine; a significant drop may indicate a leak that requires further investigation. Move on to a thorough inspection of the engine components, focusing on areas like the valve cover gasket, oil pan gasket, oil filter, and oil drain plug, as these are common leak points. Pay special attention to the oil filter for any signs of damage or leakage, and examine the oil pan for cracks. If your vehicle has an oil cooler, ensure it is also inspected for potential leaks. If these steps do not reveal the source of the leak or if the situation appears complicated, it is wise to consult a qualified mechanic for a detailed diagnosis. By following this structured diagnostic approach, you can efficiently identify and address the oil leak issue in your BMW.

What are the common causes of oil leaks in a 2019 BMW 440i xDrive?

When dealing with oil leaks in a 2019 BMW 440i xDrive, it's essential to understand the common culprits that may be at play. One of the primary causes is the degradation of gaskets and seals, which can occur over time due to exposure to heat and engine vibrations. This wear can lead to leaks that may not be immediately visible. Additionally, the oil pan is another area of concern; it can suffer damage from road debris or corrosion, resulting in oil seeping out. Another frequent issue is the valve cover gasket, which seals the valve cover to the engine. If this gasket fails, it can lead to noticeable oil leaks. Similarly, the oil filter housing gasket can deteriorate, causing oil to leak from this critical area. Lastly, the oil cooler, responsible for regulating oil temperature, can also develop leaks, contributing to the overall problem. Addressing these issues promptly is crucial, as neglecting them can lead to more severe engine damage. Regular inspections and maintenance can help you catch these leaks early, ensuring your BMW runs smoothly and efficiently.

How urgent is it to address the oil leak in my 2019 BMW 440i xDrive?

Addressing an oil leak in your 2019 BMW 440i xDrive is not just a matter of routine maintenance; it is an urgent issue that requires immediate attention. Ignoring an oil leak can lead to a cascade of problems, including severe engine damage due to inadequate lubrication, which can ultimately result in costly repairs or even complete engine failure. Additionally, low oil levels can cause your engine to overheat, further exacerbating the risk of significant mechanical issues. Beyond the mechanical implications, an oil leak poses safety hazards, as oil on the road can create slippery conditions, increasing the risk of accidents. Moreover, the environmental impact of leaking oil cannot be overlooked, as it can contaminate local soil and water sources. Therefore, if you notice any signs of an oil leak, it is crucial to act swiftly to maintain your vehicle's performance, ensure your safety, and protect the environment.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.