2016 BMW 328i XDrive Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2016 BMW 328i xDrive and How to Address Them Effectively

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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 2016 BMW 328i 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 328i 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 2016 BMW 328i xDrive?

To effectively diagnose an oil leak in your 2016 BMW 328i xDrive, begin with a comprehensive visual inspection of your vehicle. Look for any oil puddles or stains beneath the car, as well as signs of oil accumulation in the engine bay, which can often reveal the most apparent leaks. Following this, regularly monitor your oil levels; a significant drop can indicate a leak that requires immediate attention. Pay close attention to key components of the oil system, including the valve cover gasket, oil filter housing gasket, drain plug, oil pan gasket, and oil filler cap, as these are common sources of leaks. If the source of the leak remains unclear, consider adding UV dye to your engine oil, which can help you pinpoint the leak when viewed under UV light. If you are still unable to identify the issue, consulting a professional BMW specialist may be necessary for a more detailed diagnosis. It is essential to address any identified leaks promptly to prevent further damage to your engine and ensure the longevity of your vehicle. By following this structured diagnostic approach, you can systematically identify and resolve the oil leak issue in your BMW.

What are the common causes of oil leaks in a 2016 BMW 328i xDrive?

When dealing with oil leaks in a 2016 BMW 328i xDrive, it's essential to understand the common culprits that could be causing the problem. One of the primary offenders is the valve cover gasket, which is known for its tendency to wear out over time, leading to leaks. Additionally, as the vehicle ages, various engine gaskets and seals can deteriorate, allowing oil to escape from the engine. It's also important to inspect the oil system components, as leaks can occur from the oil filter housing gasket, a compromised drain plug, or a damaged oil pan gasket. Sometimes, the oil filler cap may not be tightened properly, contributing to the issue. Furthermore, oil leaks can be subtle; they may not always present as visible drips but can instead manifest as oil burning off while driving or pooling in lower areas of the engine. Specific leak points to check include the valve cover gasket, oil filter housing gasket, and turbo oil feed line. If you notice any signs of oil leaks, such as burning smells or oil drips on the ground, it’s advisable to conduct a thorough inspection or consult a qualified BMW mechanic to prevent further damage to your vehicle.

How urgent is it to address the oil leak in my 2016 BMW 328i xDrive?

Addressing an oil leak in your 2016 BMW 328i xDrive is not just a matter of convenience; it is a critical maintenance task that requires immediate attention. Ignoring an oil leak can lead to severe engine damage, as the oil is essential for lubricating engine components and preventing overheating. If the leak is not fixed promptly, it can escalate into more significant issues, such as coolant leaks or even complete engine failure, which can be costly to repair. Additionally, oil leaks often stem from failing seals or gaskets, and delaying repairs can result in more extensive damage that may require expensive fixes down the line. The cost of addressing these leaks can vary, but it is generally much more economical to tackle the problem early rather than face the consequences of a neglected engine. Therefore, if you notice any signs of an oil leak, it is crucial to act quickly and consult with a qualified mechanic to diagnose and repair the issue before it leads to more serious complications.

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2016 BMW 328i xDrive Oil Leak Causes & Repair Options