2016 BMW 328d XDrive Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2016 BMW 328d xDrive 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 2016 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 2016 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 steps should I take to diagnose the oil leak in my 2016 BMW 328d xDrive?

To effectively diagnose the oil leak in your 2016 BMW 328d xDrive, start with a thorough visual inspection of your vehicle. Look for any oil puddles or stains where you typically park, as these can indicate the presence of a leak. Next, examine the engine compartment for any visible signs of oil accumulation around the engine or on various components, which can help you identify potential leak sources. Regularly checking your oil levels is also crucial; a significant drop in oil can signal a leak that needs immediate attention. For a more precise diagnosis, consider using UV dye in your engine oil, as this can illuminate the leak's origin when viewed under UV light. If the source remains elusive, conducting a pressure test can further assist in pinpointing the leak's exact location. However, if you find yourself uncertain or unable to locate the leak, seeking the expertise of a mechanic or a BMW specialist is a wise choice to ensure a professional assessment and resolution of the issue. By following this structured diagnostic 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 2016 BMW 328d xDrive?

When dealing with oil leaks in a 2016 BMW 328d xDrive, it's essential to identify the common culprits that may be causing the issue. One frequent source of leaks is the oil system components, which can fail over time due to wear and tear. Engine gaskets, particularly the valve cover gasket, are also notorious for deteriorating, leading to oil seepage. Additionally, excessive blow-by can create pressure that forces oil out of seals, while the oil filter housing and oil cooler gaskets are other potential leak points that should not be overlooked. Lastly, the oil pan gasket can develop leaks, especially if the vehicle has experienced significant mileage. By understanding these common problems, DIY enthusiasts can effectively diagnose and address oil leaks, ensuring their BMW remains in optimal condition.

How urgent is it to address an oil leak in a 2016 BMW 328d xDrive?

Addressing an oil leak in your 2016 BMW 328d xDrive is not just a matter of routine maintenance; it is a critical issue that demands immediate attention. Oil leaks can originate from several common areas, such as the valve cover gasket or oil filter housing, and if left unchecked, they can lead to severe engine damage. Ignoring these leaks can result in a drop in oil levels, which compromises the engine's lubrication and increases the risk of overheating or catastrophic failure. Moreover, the longer you wait to address the leak, the more extensive and costly the repairs may become. Therefore, it is essential to identify the source of the leak promptly and consult with a trusted BMW specialist who can provide an accurate diagnosis and effective repair solutions. By taking swift action, you not only protect your investment but also ensure the safety and reliability of your vehicle on the road.

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