Some routine service actions such as changing the engine oil might seem obvious and essential, although others such as changing the gearbox oil from its BMW X5 may seem to be less automatic. Nevertheless, produce no mistake, changing the gearbox is just as necessary as changing the engine oil. This article content will explain the role of the gearbox oil, then, why it is necessary to replace the gearbox of your BMW X5, and at last, how to replace the gearbox oil of a BMW X5 .

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Function of gearbox oil on a BMW X5

So we begin our article content with the role of gearbox oil on a BMW X5. The objective of this short introduction is to produce you understand the interest of this fluid which guarantees the good functioning of your motor vehicle. The gearbox of your car has the mission to demultiply the power transmitted by the engine and send it back to your wheels . It is done up of pinions and gears that will allow the wheels to rotate at different speeds depending on the curves and the gear engaged. It will work with the help of an axle and a differential. All these auto parts will need to be strongly lubricate to objective accurately, limit friction and tolerate the high temperatures generated by the engine and friction. Your transmission oil has a high viscosity and will prevent the formation of filings or gear breakage, so it is important to the correct functioning of the gearbox.

Why changing the gearbox oil from a BMW X5?

Now we’ll discover what’s the point of draining the gearbox oil of your BMW X5?

Interest of gearbox oil changing BMW X5

There are some interests to replace the gearbox of your motor vehicle frequently, we will list them and outline them below:

  • After a while, the oil will lose its viscosity because of friction and temperature rise, which will bring about less lubrication of the gears and pinions and therefore risk to break some of them.
  • Same as viscosity, time and temperature rise will decrease the oil resistance to the engine temperature, So it will fluidize much more easily when the engine heats up, which is not good for your gearbox.
  • Accumulation of metallic residues: Finally, even if you always have a quality oil, a gearbox is an element that wears out and produces iron filings with friction, the oil will pick them up and if it gathers up too much these residues can get into gears and break them.

When to do the gearbox oil replace on a BMW X5?

Whether you want to do an automatic or manual gearbox oil change on BMW X5 or strong> the process is not similar, nevertheless, dealers do not give mileage suggestions to replace the oil in your gearbox, however when you do an intervention on the gearbox it is advisable to replace it, in any other case here are the factors to produce you think about doing this oil replace.

Oil replace for manual gearbox BMW X5

  • Gears are jumping: you are most likely missing oil and you may have a gearbox oil leak, please discover our content page on gearbox leaks on BMW X5 for more information.
  • The gearbox cracks when you change gears: The oil has undoubtedly lost viscosity and is too fluid, so the gears get stuck.
  • Difficulty to shift gears: Same issue as just before, the oil is absolutely too fluid.

Automatic gearbox oil replace

  • A slow begin from the neutral position to the first one: quite often a viscosity issue.
  • Difficulty or even impossibility to shift gears: Lack of oil

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How to replace gearbox oil of a BMW X5?

Finally, to end this content page, we will explain you how to empty the gearbox oil of your BMW X5 , it’s less difficult than you might presume, here are the few steps to stick to to do it accurately:

  • Heat your BMW X5 for about 10 minutes to get a fluid oil, place it flat on 4 stands.
  • Install a drain pan under the drain plug, open it, and clean it well because it will most likely collect filings.
  • Let all the oil run out until it’s all gone.
  • Change and tighten the cap, then fill with a syringe through the filler cap with the manufacturer’s suggested dose

Whenever you have any additional questions about the BMW X5, do not hesitate to consult our BMW X5 category.