Some maintenance actions such as changing the engine unit oil may seem evident and fundamental, although others such as changing the gearbox oil from its Audi A6 may seem less natural. However, make no mistake, changing the gearbox is just as important as changing the engine unit oil. This article will explain the function of the gearbox oil, then, why it is essential to replace the gearbox of your Audi A6, and finally, how to replace the gearbox oil of a Audi A6 .

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Purpose of gearbox oil on a Audi A6

So we begin our article with the function of gearbox oil on a Audi A6. The objective of this short introduction is to make you understand the benefit of this fluid which guarantees 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 highly lubricate to action correctly, limit friction and tolerate the high temperatures produced 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 important to the proper functioning of the gearbox.

Why replacing the gearbox oil from a Audi A6?

Now we’ll see what’s the point of draining the gearbox oil of your Audi A6?

Interest of gearbox oil changing Audi A6

There are several concerns to replace the gearbox of your car repeatedly, we will list them and outline them below:

  • After a while, the oil will lose its viscosity caused by 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 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 always have a quality oil, a gearbox is an component that wears out and releases iron filings with friction, the oil will pick them up and if it builds up too much these residues can get into gears and break them.

When to do the gearbox oil replace on a Audi A6?

Whether you want to do an automatic or manual gearbox oil change on Audi A6 or strong> the procedure is not similar, nevertheless, dealers do not give mileage suggestions to replace the oil in your gearbox, nevertheless when you do an intervention on the gearbox it is wise to replace it, otherwise here are the reasons to make you think about doing this oil replace.

Oil replace for manual gearbox Audi A6

  • Gears are jumping: you are probably missing oil and you may have a gearbox oil leak, please see our article on gearbox leaks on Audi A6 for more info.
  • The gearbox cracks when you switch 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 most certainly too fluid.

Automatic gearbox oil replace

  • A slow begin 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 replace gearbox oil of a Audi A6?

Finally, to end this article, we will explain you how to empty the gearbox oil of your Audi A6 , it’s much easier than you might believe, here are the few steps to follow to do it correctly:

  • Heat your Audi A6 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 probably 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 suggested dose

To discover more tips on the Audi A6, take a look at the Audi A6 category.