Having a vehicle is fundamental, we most of the time need it to get to our job and for a majority of our daily trips. This crucial portion of our annual budget recurrently causes us surprises, being conscious of oil leaking on your car is one of them… Indeed, an oil leak is not usually harmless and can quickly lead to the breakage of your engine if you don’t discern it. If you are conscious of oil leaking on your Mercedes Classe S, you have come to the right web site, we will first assist you to discover the source of the oil leak and, secondly, we will help you to fix it, if it is possible.

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Identifying the origin of the oil leaking on your Mercedes Classe S

If you discover fluid leaking from under your Mercedes Classe S, the first move to make is to examine all of your levels (power steering, engine oil, brake fluid, coolant) to see if any of them can quickly be identified as the origin of the leak. To limit the risks, it is definitely required to examine your levels every 2 weeks to prevent any risk of engine breakage.
In our case we will only be focused on case you notice oil leaking from your Mercedes Classe S, 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 uneasy smell.
It’s not always easy to discover the source of the oil that leaks on a Mercedes Classe S because of the accessibility of the engine block, nevertheless here are the guidelines to follow to discover the origin of the oil:

  • Discover the point where the oil falls, the region from which it spills onto the floor…
  • Track down the route of the dripping oil to its basis, if the blot is too big, don’t be reluctant to clean the engine block and drive to be capable of track down it without difficulty.
  • To help you, here is a list of the auto parts that most often induce 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.

When possible, repair the part that made the oil to leak on your Mercedes Classe S.

Now that you’ve determined the source of the oil leaking, it’s time to get down to business. Of course, for a while, you’ll be able to add more oil to top up the level, according to its severity, but remember that this is not a long lasting answer and that the leak could get worse at any time. We are gonna show 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 Mercedes Classe S, you will have to swap your engine or gearbox oil.

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

In this circumstance, the methodology is very simple, you just have to lift your Mercedes Classe S, whenever possible perfectly horizontal, remove your drain plug, drain your engine oil, swap your drain gasket, tighten the plug to the perfect torque and examine the hot engine to make sure the leak has been fixed.

Oil leaking over from the oil filter of my Mercedes Classe S

In the case that your oil leak comes from your oil filter, you will just need to change it. To make this happen, take a filter wrench, remove the old filter, ensuring 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 Mercedes Classe S.

Oil leaking from the pressure switch of my Mercedes Classe S

To finish , if it is your pressure switch that is the cause of your leak on your Mercedes Classe S, you can, depending on its accessibility, reach it and swap it very easily. To achieve this, place 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 S.

For any other type of leak, we suggest you to go to your mechanic because the repair necessitates too much expertise and tools to be done serenely alone.

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