2016 BMW 428i XDrive Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2016 BMW 428i 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 428i 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 428i 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 428i xDrive?

To effectively diagnose the oil leak in your 2016 BMW 428i xDrive, start by identifying the source of the leak, as this is crucial for determining the necessary repairs. Common culprits include the valve cover gasket, timing cover gasket, and oil filter housing. Regularly checking your oil levels can help you monitor any fluctuations that may indicate a leak, allowing you to catch issues early. Look for visual indicators such as oil puddles under your vehicle or unusual smells while driving, as these can signal a problem. Additionally, listen for any unusual sounds, like sizzling or popping, which may suggest oil is leaking onto hot engine components. If you suspect a leak, it’s wise to consult a trusted independent BMW specialist for a thorough diagnosis and repair, as they often provide more affordable solutions compared to dealerships. By following this diagnostic approach, you can systematically assess the situation and take the appropriate steps to resolve the oil leak in your BMW.

What are the common causes of oil leaks in a 2016 BMW 428i xDrive?

When dealing with oil leaks in a 2016 BMW 428i xDrive, it's essential to understand the common culprits that may be at play. One of the primary sources of oil leaks is the deterioration of engine gaskets, which can wear down over time, allowing oil to escape. Additionally, issues with the oil filter housing gasket can lead to significant leaks, as can a worn valve cover gasket, a frequent problem in many BMW models. It's also important to consider the condition of various seals and gaskets throughout the engine, as failures in these components can result in oil dripping or burning off during operation. If you observe oil spots under your vehicle or notice a drop in oil levels, it’s crucial to investigate these areas thoroughly. While some DIY enthusiasts may feel confident tackling these repairs, consulting a certified BMW mechanic is advisable for a comprehensive diagnosis and to ensure that the issue is resolved effectively.

How urgent is it to address the oil leak in my 2016 BMW 428i xDrive?

Addressing an oil leak in your 2016 BMW 428i xDrive is not just a matter of convenience; it is a critical safety and maintenance concern that requires immediate attention. Ignoring an oil leak can lead to a cascade of problems, including decreased oil levels that compromise the lubrication of essential engine components. This inadequate lubrication can result in severe engine damage over time, leading to costly repairs that could have been avoided. Additionally, persistently low oil levels can cause the engine to overheat, further exacerbating the risk of mechanical failure. The safety implications are also significant; leaking oil can drip onto hot engine parts, creating a fire hazard that endangers both the vehicle and its occupants. Therefore, it is imperative to address any signs of an oil leak promptly to ensure the longevity and safe operation of your BMW 428i xDrive.

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2016 BMW 428i xDrive Leaking Oil: Causes & Repair Guide