2012 INFINITI M35h Is Leaking Oil

Discovering the Causes of Oil Leaks in Your 2012 INFINITI M35h 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 INFINITI M35h is leaking oil are oil system component failure and leaking engine gaskets.
  • Oil System Components: A worn or damaged oil pump or filter can lead to low oil pressure, resulting in 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 INFINITI M35h 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 2012 INFINITI M35h?

When faced with an oil leak in your 2012 INFINITI M35h, it's essential to adopt a systematic diagnostic approach. Start with a thorough visual inspection under the vehicle to identify any visible signs of oil, such as puddles or drips, which can help pinpoint the leak's location. Next, monitor your oil levels regularly; a significant drop can indicate a leak that needs immediate attention. Inspect gaskets and seals for wear or damage, as these are common culprits. Ensure that the oil drain plug is securely tightened, as a loose plug can lead to leaks. If the problem persists, consider conducting a pressure test to accurately locate the source of the leak. Additionally, examine the oil filter for any signs of damage or improper installation, and check the oil pan for cracks. Lastly, don't overlook the oil cooler, as issues here can also contribute to leaks. By following this structured approach, you can effectively diagnose and address oil leaks, ensuring your vehicle remains in optimal condition.

What are the common causes of oil leaks in a 2012 INFINITI M35h?

When dealing with oil leaks in a 2012 INFINITI M35h, it's crucial to understand the common problems that may arise. One frequent culprit is the oil pan gasket, which can degrade over time, leading to leaks that may go unnoticed until they cause significant issues. Similarly, valve cover gaskets can also develop leaks due to age or improper installation, allowing oil to escape and potentially create a mess under the hood. Another area to inspect is the oil filter housing gasket; if this component fails, it can result in oil leaking around the oil filter, which is often a straightforward fix. Additionally, the rear main seal, located at the back of the engine, is prone to leaks that can drip onto the ground, indicating a need for replacement. Lastly, the seals around the oil cooler can wear out, leading to leaks in that area as well. Regular inspections and timely maintenance are essential to catch these issues early, ensuring the longevity and performance of your vehicle.

How urgent is it to address the oil leak in my 2012 INFINITI M35h?

Addressing an oil leak in your 2012 INFINITI M35h is not just a matter of routine maintenance; it is a pressing issue that requires immediate attention. An oil leak can lead to a significant loss of lubrication within the engine, resulting in increased friction and heat that may ultimately cause severe engine damage. Furthermore, neglecting this problem can lead to dangerously low oil levels, accelerating wear on engine components and heightening the risk of catastrophic engine failure. The safety implications are equally concerning, as leaking oil can drip onto hot engine parts, creating a fire hazard that endangers both the vehicle and its occupants. By addressing the oil leak promptly, you not only safeguard your engine's health but also prevent the need for more extensive and costly repairs down the line. Therefore, if you notice any signs of an oil leak, it is crucial to act swiftly to maintain the performance and safety of your INFINITI M35h.

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2012 INFINITI M35h Oil Leak Causes & Repair Estimates