Being owner of a vehicle is essential, we generally need it to get to our job and for many of our daily trips. This essential part of our annual budget recurrently causes us complications, being aware of oil leaking on your car is one of them… Indeed, an oil leak is not often harmless and can quickly lead to the breakage of your engine if you don’t realize it. If you are aware of oil leaking on your Mercedes Classe A 3, 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, if possible.

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Identifying the origin of the oil leaking on your Mercedes Classe A 3

If you discover fluid leaking from under your Mercedes Classe A 3, the first right move is to check all of your levels (power steering, engine oil, brake fluid, coolant) to see if any of them can quickly be defined as the source of the leak. To limit the risks, it is definitely important to check your levels every 2 weeks to avoid any risk of engine breakage.
In our circumstance we will only be focused on circumstance you find oil leaking from your Mercedes Classe A 3, 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 always easy to discover the cause of the oil that leaks on a Mercedes Classe A 3 because of the space in the engine block, nevertheless here are the simple steps to follow to discover the source of the oil:

  • Locate the point where the oil falls, the place from which it spills onto the floor…
  • Track down the route of the dripping oil to its origin, if the blot is too big, don’t be reluctant to clean the engine block and drive to be capable of discover it more easily.
  • To help you, here is a list of the 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 made the oil to leak on your Mercedes Classe A 3.

Now that you’ve found 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 take note that this is not a long lasting solution and that the leak could get worse at any time. We are likely to present you the repairs that we think you can attempt alone with some expertise, tools and according to the accessibility that you are going to have on your engine. In any case, you should know that after repairing an oil leak on a Mercedes Classe A 3, you will have to change your engine or gearbox oil.

Oil leakage from the drain plug and its seal on Mercedes Classe A 3

In this scenario, the process is quite easy, you just have to lift your Mercedes Classe A 3, if you can totally horizontal, remove your drain plug, drain your engine oil, change your drain gasket, tighten the plug to the right torque and check the hot engine to make sure the leak has been repaired.

Oil leaking over from the oil filter of my Mercedes Classe A 3

In the event that your oil leak comes from your oil filter, you will just need to replace it. To do this, take a filter wrench, remove the old filter, being certain that the gasket does not stick to the engine, place the new filter and tighten it moderately. Same evaluation, hot check if oil is leaking from your Mercedes Classe A 3.

Oil leaking from the pressure switch of my Mercedes Classe A 3

To finish , if it is your pressure switch that is the trigger of your leak on your Mercedes Classe A 3, you can, based on its accessibility, reach it and change it very easily. To get this done, 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 test to verify that you no longer have any oil leaking from your Mercedes Classe A 3.

For any other type of leak, we advise you to go to your auto technician because the repair requires too much expertise and tools to be carried out serenely alone.

If you have any further questions about the Mercedes Classe A 3, do not hesitate to consult our Mercedes Classe A 3 category.