2016 BMW I8 Is Leaking Oil

Diagnosing Oil Leak Sources in Your 2016 BMW i8 and Recommended Repair Solutions

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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 i8 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 i8 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 are the steps to diagnose the oil leak in a 2016 BMW i8?

To effectively diagnose an oil leak in a 2016 BMW i8, start by identifying the source of the leak, as this is crucial for determining the appropriate repair method. Common areas to inspect include the valve cover gasket, timing cover gasket, and oil filter housing, as these are frequent culprits in BMW engines. Regularly checking oil levels is also essential, as it helps you monitor the severity of the leak and maintain engine health. If you discover oil in areas like the turbocharger oil lines, further investigation is necessary to pinpoint the exact cause. Additionally, inspect other potential leak sources such as gaskets, oil pans, and seals. In some instances, you may need to consider less common issues, like fuel tank leaks, which can arise from faulty bolts. If the problem persists or if you're unsure about the diagnosis, consulting a trusted independent BMW specialist is advisable, as they possess the expertise to accurately assess and resolve oil leak issues. By following this structured approach, you can effectively tackle oil leaks and ensure your BMW i8 remains in optimal condition.

What are the common causes of oil leakage in a 2016 BMW i8?

When dealing with oil leakage in a 2016 BMW i8, it's essential to understand the common culprits that may be at play. One frequent issue is a worn valve cover gasket, which can deteriorate over time and fail to create a proper seal between the valve cover and the cylinder head, leading to oil seepage. Another common source of leaks is the oil filter gasket; if this component is compromised, it can result in significant oil loss. Additionally, while less common, a cracked cylinder head can allow oil to mix with coolant, creating a more serious problem. Other potential causes include damage to piston rings and valve seals, which can lead to oil escaping from the engine, as well as poor gasket installation that may not provide the necessary seal. Identifying the specific source of the leak is crucial for effective repairs, and regular maintenance can help prevent these issues from escalating, ensuring your BMW i8 remains in optimal condition.

How urgent is it to address the oil leak in my 2016 BMW i8?

Addressing an oil leak in your 2016 BMW i8 is not just a matter of routine maintenance; it is an urgent issue that requires immediate attention. Ignoring an oil leak can lead to severe engine stress, resulting in underperformance and potentially escalating repair costs. The oil leak can compromise critical components, such as the engine and turbocharger, which are vital for your vehicle's operation. Even minor leaks can quickly develop into major problems if left unattended, leading to significant damage that could have been easily avoided. Additionally, if oil seeps onto hot engine parts, it can create hazardous conditions, producing alarming sounds like sizzling or popping that signal a serious issue. Therefore, it is essential to act swiftly to prevent further complications and protect your investment in your BMW i8.

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