Having an automobile is necessary, we generally need it to get to work and for the majority of our daily trips. This crucial part of our annual budget regularly causes us complications, being conscious of oil leaking on your car is one of them… In truth, an oil leak is not usually harmless and can quickly lead to the breakage of your engine if you don’t find it. If you are conscious of oil leaking on your Mercury Mariner, you have come to the right page, we will first help you to discover the cause of the oil leak and, additionally, we will help you to fix it, when possible.


Identifying the origin of the oil leaking on your Mercury Mariner

If you observe fluid leaking from under your Mercury Mariner, the first action to take is to verify all of your levels (power steering, engine oil, brake fluid, coolant) to find out if any of them can fairly quickly be recognized as the source of the leak. To limit the risks, it is certainly required to verify your levels every 2 weeks to prevent any risk of engine breakage.
In our circumstance we will only be interested in circumstance you find oil leaking from your Mercury Mariner, as far as engine oil is concerned, the liquid will be quite viscous and in shades of brown to black and if it is gearbox oil, it will be rather in amber tones and will have a strong annoying smell.
It’s not constantly easy to discover the cause of the oil that leaks on a Mercury Mariner because of the space in the engine block, even so here are the steps to follow to discover the origin of the oil:

  • Uncover the point where the oil falls, the region from which it leaks onto the floor…
  • Go back up the path of the dripping oil to its source, if the blot is too large, don’t think twice to clean the engine block and drive to be capable of find it more easily.
  • To guide you, here is a list of the auto parts that mostly provoke oil to leak from a car: the drain plug and its seal; one of your crankcase gaskets; the oil pressure switch; the oil filter; the transmission drain plug; the transmission sealing rings.

If possible, fix the part that brought on the oil to leak on your Mercury Mariner.

Now that you’ve determined the cause of the oil leaking, it’s time to get down to business. Obviously, for a while, you’ll be able to add more oil to top up the level, depending on its seriousness, but bear in mind that this is not a long lasting solution and that the leak could intensify at any time. We are going to reveal you the repairs that we think you can attempt all alone with some expertise, tools and depending to the accessibility that you are going to have on your engine. No matter the reason, you should know that after repairing an oil leak on a Mercury Mariner, you will have to swap your engine or gearbox oil.

Oil leakage from the drain plug and its seal on Mercury Mariner

In this situation, the solution is quite simple, you just have to lift your Mercury Mariner, when possible totally horizontal, remove your drain plug, drain your engine oil, swap your drain gasket, tighten the plug to the right torque and verify the hot engine to make sure the leak has been repaired.

Oil leaking over from the oil filter of my Mercury Mariner

In the case that your oil leak comes from your oil filter, you will simply need to change it. To accomplish this, take a filter wrench, remove the old filter, being sure that the gasket does not stick to the engine, place the new filter and tighten it moderately. Same check, hot check if oil is leaking from your Mercury Mariner.

Oil leaking from the pressure switch of my Mercury Mariner

Finally, if it is your pressure switch that is the reason of your leak on your Mercury Mariner, you can, depending on its ease of access, reach it and swap it very easily. To make this happen, set a drain tray under the part, disconnect the electrical wire, remove the part, quickly reposition the replacement pressure switch, clean the whole thing and do a hot check to make sure that you no longer have any oil leaking from your Mercury Mariner.

For any other type of leak, we suggest you to go to your auto technician because the repair will involve too much knowledge and tools to be executed serenely alone.

If perhaps you have any further questions about the Mercury Mariner, do not hesitate to consult our Mercury Mariner category.