Some maintenance actions such as changing the engine unit oil may seem evident and fundamental, while others such as changing the gearbox oil from its BMW X4 may seem to be less automatic. However, produce no mistake, changing the gearbox is just as important as changing the engine unit oil. This guideline will show you the role of the gearbox oil, then, why it is necessary to change the gearbox of your BMW X4, and at last, how to change the gearbox oil of a BMW X4 .

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Role of gearbox oil on a BMW X4

So we start our guideline with the role of gearbox oil on a BMW X4. The objective of this short introduction is to produce you understand the benefit of this fluid which assures the good working of your car. The gearbox of your car has the mission to demultiply the power transferred by the engine unit and send it back to your wheels . It is made 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 parts will need to be strongly lubricate to action properly, limit friction and tolerate the high temperatures built by the engine unit and friction. Your transmission oil has a high viscosity and will prevent the formation of filings or gear breakage, so it is fundamental to the correct functioning of the gearbox.

Why replacing the gearbox oil from a BMW X4?

Now we’ll see what’s the point of draining the gearbox oil of your BMW X4?

Benefit of gearbox oil changing BMW X4

There are several interests to change the gearbox of your car frequently, we will list them and outline them below:

  • As time passes, the oil will lose its viscosity due to 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 lower the oil resistance to the engine unit 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 constantly have a quality oil, a gearbox is an element that wears out and generates iron filings with friction, the oil will pick them up and if it accumulates too much these residues can get into gears and break them.

When to do the gearbox oil change on a BMW X4?

Whether you want to do an automatic or manual gearbox oil change on BMW X4 or strong> the process is not the same, nevertheless, dealers do not give mileage recommendations to change the oil in your gearbox, nevertheless when you do an intervention on the gearbox it is advisable to change it, otherwise here are the causes to produce you take into consideration doing this oil change.

Oil change for manual gearbox BMW X4

  • Gears are jumping: you are almost certainly missing oil and you may possibly have a gearbox oil leak, please see our content page on gearbox leaks on BMW X4 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 problem as just before, the oil is obviously too fluid.

Automatic gearbox oil change

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

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How to change gearbox oil of a BMW X4?

Finally, to conclude this content page, we will show you you how to empty the gearbox oil of your BMW X4 , it’s easier than you might presume, here are the few actions to follow to do it properly:

  • Heat your BMW X4 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 almost certainly gather filings.
  • Let all the oil run out until it’s all gone.
  • Replace and tighten the cap, then fill with a syringe through the filler cap with the manufacturer’s recommended dose

If you have any further questions about the BMW X4, do not hesitate to consult our BMW X4 category.