Being owner of a vehicle is necessary, we often need it to get to work and for the majority of our daily trips. This essential portion of our annual budget frequently causes us surprises, being conscious of oil leaking on your car is one of them… Indeed, an oil leak is hardly ever inoffensive 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 BMW 7 Series, you have come to the right place, we will first assist you to find the cause of the oil leak and, secondly, we will help you to fix it, if it is possible.
Identifying the origin of the oil leaking on your BMW 7 Series
If you observe fluid leaking from under your BMW 7 Series, the first move to make is to check all of your levels (power steering, engine oil, brake fluid, coolant) to find out if any of them can quickly be identified as the origin of the leak. To limit the risks, it is absolutely fundamental to check your levels every 2 weeks to prevent any risk of engine breakage.
In our case we will only be interested in case you find oil leaking from your BMW 7 Series, 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 unpleasant smell.
It’s not always easy to find the cause of the oil that leaks on a BMW 7 Series because of the room in the engine block, even so here are the guidelines to stick to to find the origin of the oil:
- Find the point where the oil falls, the region from which it spills onto the floor…
- Track down the path of the dripping oil to its basis, if the blot is too important, don’t be reluctant to clean the engine block and drive to be capable of find out it easier.
- That may help you, here is a list of the auto parts that most often cause 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, fix the part that caused the oil to leak on your BMW 7 Series.
Now that you’ve determined the cause of the oil leaking, it’s time to get down to business. Naturally, for a while, you’ll be able to add more oil to top up the level, based on its seriousness, but remember that this is not a durable remedy and that the leak could intensify at any moment. We are going to show you the repairs that we think you can carry out all alone with some expertise, tools and according 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 BMW 7 Series, you will have to change your engine or gearbox oil.
Oil leakage from the drain plug and its seal on BMW 7 Series
In this circumstance, the strategy is quite easy, you just have to lift your BMW 7 Series, if it is possible totally horizontal, remove your drain plug, drain your engine oil, change your drain gasket, tighten the plug to the perfect torque and check the hot engine to make sure the leak has been repaired.
Oil leaking over from the oil filter of my BMW 7 Series
In case that your oil leak comes from your oil filter, you will basically need to change it. To achieve this, take a filter wrench, remove the old filter, being sure that the gasket does not stick to the engine, set the new filter and tighten it moderately. Same test, hot check if oil is leaking from your BMW 7 Series.
Oil leaking from the pressure switch of my BMW 7 Series
Finally, if it is your pressure switch that is the cause of your leak on your BMW 7 Series, you can, based on its accessibility, reach it and change it easily. To accomplish this, place a drain tray under the part, disconnect the electrical wire, remove the part, quickly reposition the replacement pressure switch, clean the assembly and do a hot check to confirm that you no longer have any oil leaking from your BMW 7 Series.
For any other type of leak, we recommend you to go to your auto mechanic because the repair necessitates too much knowledge and tools to be carried out serenely alone.
If you have any further questions about the BMW 7 Series, do not hesitate to consult our BMW 7 Series category.
