2014 BMW 328d XDrive Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2014 BMW 328d xDrive and How to Address Them 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 2014 BMW 328d xDrive 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 2014 BMW 328d 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 are the steps to diagnose the oil leak in a 2014 BMW 328d xDrive?

To effectively diagnose an oil leak in your 2014 BMW 328d xDrive, start by checking the engine oil pressure warning light, as this can indicate low oil pressure or a faulty sensor. Next, inspect common leak areas such as the valve cover gasket, oil filter housing gasket, and turbo oil feed line, as these are frequent culprits in BMW models. Pay particular attention to the oil filter housing, which is known for leaks; any signs of oil accumulation here should be addressed promptly. Additionally, examine the engine valley drain hole for any oil residue, as a clean area may suggest the leak is deeper within the transmission bellhousing, potentially linked to the engine oil galley plug or crankshaft rear seal. If you identify a specific component, like the oil filter housing gasket, as the source of the leak, be prepared to remove and replace the gaskets to resolve the issue. By following this systematic approach, you can efficiently pinpoint and address the oil leak in your vehicle.

What are the common causes of oil leaks in a 2014 BMW 328d xDrive?

When dealing with oil leaks in a 2014 BMW 328d xDrive, it's essential to understand the common problems that may arise. One frequent culprit is the failure of oil system components, which can lead to significant leaks if not addressed promptly. Additionally, worn or deteriorated engine gaskets, particularly the valve cover gasket, are notorious for allowing oil to escape. The oil filter housing is another area where leaks can occur, often due to improper installation or wear over time. Furthermore, oil pan leaks can develop, especially in older vehicles, as the seals may degrade. Regular inspection of these components can help identify issues early, allowing DIY enthusiasts to take corrective action before more extensive damage occurs. By being aware of these common causes, you can effectively troubleshoot and maintain your BMW, ensuring its longevity and performance.

How urgent is it to address the oil leak in a 2014 BMW 328d xDrive?

Addressing an oil leak in your 2014 BMW 328d xDrive is not just a matter of routine maintenance; it is a critical issue that demands immediate attention. Oil is vital for lubricating engine components, and a leak can lead to a dangerous drop in oil levels, risking severe engine damage and costly repairs down the line. Moreover, the presence of leaking oil poses a significant safety hazard, as it can drip onto hot engine parts, increasing the risk of fire. Regularly monitoring your oil levels and promptly addressing any leaks is essential for maintaining the performance and longevity of your vehicle. Ignoring these symptoms can lead to dire consequences, making it imperative to act swiftly to ensure both your safety and the health of your BMW.

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