2014 BMW 650i Is Leaking Oil

Identifying the Causes of Oil Leaks in Your 2014 BMW 650i 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 2014 BMW 650i 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 2014 BMW 650i 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 are the steps to diagnose the oil leak in a 2014 BMW 650i?

To effectively diagnose an oil leak in a 2014 BMW 650i, start by checking the oil levels to confirm whether a leak is causing a loss of oil. Next, inspect the area beneath the vehicle for any visible signs of oil, such as puddles or drips, which can help pinpoint the leak's location. Common sources of oil leaks in this model include oil system components and engine gaskets, so pay close attention to these areas. If you identify a leak, consider using an oil leak stopper as a temporary solution; simply add it to the oil fill hole. However, if you cannot locate the source of the leak or if the problem persists, it is advisable to consult a certified auto repair technician for a comprehensive inspection. Be cautious not to attempt DIY transmission removal if you find engine oil in unusual areas, as this could complicate the issue further. By following this diagnostic approach, you can systematically address the oil leak and maintain your vehicle's performance.

What are the common causes of oil leaks in a 2014 BMW 650i?

When tackling oil leaks in a 2014 BMW 650i, it's essential to understand the common culprits that may be at play. One of the primary issues is the deterioration of engine gaskets and seals, which can occur over time due to wear and tear. This degradation often leads to leaks at critical junctions, particularly around the valve cover gasket, oil pan gasket, timing cover gaskets, and alternator bracket gasket. Regular inspections are crucial; checking under the engine for oil stains and monitoring oil levels can help you catch leaks early. Additionally, be vigilant for any unusual smells or smoke, as these can indicate oil escaping from the engine. By being proactive and familiarizing yourself with these common problems, you can effectively address oil leaks and maintain the performance of your BMW 650i.

How urgent is it to address the oil leak in my 2014 BMW 650i?

Addressing an oil leak in your 2014 BMW 650i is not just a matter of routine maintenance; it is a pressing issue that requires immediate attention. Oil is vital for lubricating engine components, and a leak can lead to a significant loss of oil, jeopardizing the engine's smooth operation. If left unchecked, low oil levels can result in severe engine damage or even complete engine failure, which can be both costly and inconvenient. Moreover, an oil leak poses a safety risk, as oil can drip onto hot engine parts, increasing the likelihood of a fire. By tackling the oil leak promptly, you not only protect your vehicle's performance but also prevent further damage that could lead to more expensive repairs down the line. Therefore, it is crucial to prioritize this issue to ensure the longevity and safety of your BMW 650i.

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