2016 BMW 535i Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2016 BMW 535i and How to Address Them Effectively

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Reviewed by
Bo Fader
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 535i 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 535i 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

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 potential causes and diagnostic steps for an oil leak in a 2016 BMW 535i?

When faced with an oil leak in your 2016 BMW 535i, it's essential to adopt a systematic diagnostic approach to pinpoint the source of the problem. Start by visually inspecting the engine for any signs of oil accumulation, particularly around common leak points such as the valve cover and oil cooler gaskets. Pay attention to any unusual sounds, like sizzling or popping, which may indicate oil contact with hot engine components. Regularly checking your oil levels can also provide insight; a sudden drop may signal a leak that needs immediate attention. If the source remains elusive, consider the condition of gaskets and seals, as wear and tear can lead to leaks over time. Should your efforts not yield results, consulting a qualified BMW mechanic can provide a thorough inspection and professional insight, ensuring that your vehicle is restored to optimal condition. By following these steps, you can effectively diagnose and address oil leaks, maintaining the performance and reliability of your BMW.

What are the common causes of oil leaks in a 2016 BMW 535i?

When dealing with oil leaks in a 2016 BMW 535i, it's crucial to understand the common problems that can arise, as this knowledge can empower DIY enthusiasts to tackle repairs effectively. One of the primary culprits is the worn valve cover gasket, which can lead to oil seeping out from the top of the engine. Additionally, as the vehicle ages, the deterioration of engine gaskets and seals can create gaps that allow oil to escape, often noticeable around the seams of the engine. If you notice oil pooling on the left side of the engine, the oil filter housing gasket may be the source of the leak, particularly if the oil appears to be coming from the oil pan but isn't originating from the oil pan gasket itself. Another area to inspect is the drain plug; a worn or damaged plug can result in significant oil loss. While these are the most common issues, it's also wise to consider other potential sources such as the oil pan, oil cooler gasket, or even the turbocharger oil lines. Addressing these leaks promptly is essential not only for maintaining the performance of your BMW but also for preventing more severe engine damage down the line. Regular inspections and proactive maintenance can help you catch these issues early, ensuring your vehicle remains in optimal condition.

How urgent is it to address the oil leak in my 2016 BMW 535i?

Addressing an oil leak in your 2016 BMW 535i is not just a matter of convenience; it is a critical maintenance issue that demands immediate attention. Ignoring an oil leak can lead to severe engine damage, as the engine relies on proper lubrication to function effectively. When oil levels drop due to leaks, the engine can overheat or suffer from increased friction, potentially resulting in catastrophic failure that could necessitate a complete engine replacement. The financial implications of such damage can be staggering, with repair costs ranging from a few hundred dollars for minor fixes to thousands for major repairs. Moreover, regular monitoring of your oil levels is essential to ensure optimal engine performance and longevity. By addressing the leak promptly, you not only safeguard your vehicle's health but also protect your investment from unnecessary expenses down the line. Therefore, if you notice any signs of an oil leak, it is imperative to act swiftly to prevent further complications.

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