2012 BMW 760Li Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2012 BMW 760Li 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 2012 BMW 760Li 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 2012 BMW 760Li 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 first steps to diagnose the oil leak in a 2012 BMW 760Li?

To effectively diagnose an oil leak in your 2012 BMW 760Li, start by identifying the source of the leak. Begin with a visual inspection of common leak points such as the valve cover gasket, timing cover gasket, and oil filter housing. Look for signs of oil accumulation or wetness around these areas, as they are often the culprits. Once you have pinpointed a potential source, check your oil levels regularly to monitor any significant drops that could indicate a leak. This proactive approach not only helps in identifying the issue early but also allows you to take necessary actions before the problem escalates. By systematically assessing these areas, you can efficiently diagnose the oil leak and determine the next steps for repair.

What are the common causes of oil leaks in a 2012 BMW 760Li?

When dealing with oil leaks in a 2012 BMW 760Li, it's essential to understand the common culprits that may be at play. One of the primary issues is a worn valve cover gasket, which can lead to significant oil seepage if not addressed promptly. Additionally, the deterioration of engine gaskets and seals over time can create pathways for oil to escape, especially as the vehicle accumulates mileage. Another factor to consider is the potential failure of oil system components, which can also contribute to leaks. Lastly, external damage to the oil pan, often resulting from accidents or improper maintenance practices like over-tightening drain plugs, can necessitate replacement. By identifying these common causes, DIY enthusiasts can better diagnose the source of the leak and take appropriate action to resolve the issue effectively.

How urgent is it to address the oil leak in my 2012 BMW 760Li?

Addressing an oil leak in your 2012 BMW 760Li is not just a matter of convenience; it is a critical maintenance task that demands immediate attention. Ignoring an oil leak can lead to severe engine stress, which may compromise performance and ultimately result in engine failure. Additionally, oil leaks can cause overheating, further exacerbating the risk of damage to your engine and other vital components. Identifying the source of the leak is essential, as different areas of the engine may require specific repairs. Delaying action can lead to increased wear and tear on your engine, significantly diminishing its lifespan and efficiency. Therefore, it is imperative to prioritize the repair of any oil leaks to safeguard your vehicle's performance and longevity. Taking prompt action not only protects your investment but also ensures a safer driving experience.

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