2016 BMW 550i Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2016 BMW 550i 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 550i 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 550i 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 steps to diagnose the oil leak in a 2016 BMW 550i?

To effectively diagnose an oil leak in your 2016 BMW 550i, start by inspecting the engine valley drain hole for any oil residue, as this can indicate leaks from components like the turbocharger oil lines. If you find no residue, shift your focus to the transmission bellhousing, where issues such as a leaking engine oil galley plug or a crankshaft rear seal may be present. It's also crucial to examine common leak sources, including the valve cover gasket, oil filter housing gasket, oil pan gasket, and main engine seal, as these are frequent culprits in BMWs. Regularly monitoring your oil levels can provide additional insights; a significant drop or the need for frequent top-offs may signal an ongoing leak. If previous repairs have not resolved the issue, consider seeking a professional diagnosis from a BMW dealership, which can help pinpoint the exact source of the leak. By following this structured approach, you can systematically identify and address oil leaks, ensuring your vehicle remains in optimal condition.

What are the common causes of oil leaks in a 2016 BMW 550i?

When dealing with oil leaks in a 2016 BMW 550i, it's essential to understand the common culprits that may be at play. One of the primary causes is the deterioration of engine gaskets and seals, which can occur over time due to wear and tear. This degradation allows oil to escape from the engine, often leading to visible leaks. Specifically, the valve cover gasket is notorious for failing in BMW models, including the 550i, and is a frequent source of oil leakage. Additionally, other components such as the vacuum pump and the engine oil cooler joint can also contribute to leaks, particularly if they are not properly sealed. It's important to note that oil leaks may not always be immediately apparent, as the oil can drip down into lower areas of the engine or even burn off while driving, making it crucial to regularly inspect your vehicle for any signs of leakage. Addressing these issues promptly through regular maintenance can help prevent more significant problems down the line, ensuring your BMW remains in optimal condition.

How urgent is it to address the oil leak in my 2016 BMW 550i?

Addressing an oil leak in your 2016 BMW 550i is not just a matter of routine maintenance; it is an urgent necessity that can significantly impact your vehicle's performance and longevity. Ignoring an oil leak can lead to increased engine stress, resulting in diminished performance and a heightened risk of engine failure. Moreover, oil leaks can cause overheating, which poses a serious threat to your engine's integrity. It is crucial to identify the source of the leak promptly, as BMWs are known for specific leak-prone areas that require immediate attention. Delaying repairs can escalate costs, with potential expenses ranging from $200 to $750 or more, depending on the leak's origin. Furthermore, the longer you drive with a leak, the more likely you are to incur additional repair bills, which can soar to $500-900 due to the compounded effects of overheating and wear. Therefore, addressing the oil leak without delay is essential to safeguard your engine's health and avoid costly repairs down the line.

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