In this article we will try to help you solve a problem that can be annoying, and if not handled in time become a financial drain. Surely, finding a leak on your car is hardly ever reassuring, and it is even less reassuring when it’s a gearbox leak on your Audi A3 . Today, we’re going to help you confirm that it’s in fact a gearbox leak, then, how to repair a gearbox or transmission leak, then, give you some prevention tips, and, finally, give you an indication of the price of the gearbox of a Audi A3.

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Gearbox leak on Audi A3, origin and manifestation

If you have noticed an oil stain on the ground, you will need to validate that this leak is in fact originating from the gearbox of your Audi A3. To accomplish this, you will need to go under your car and follow the oil leak. If it is transmission oil, it must be originating from your gearbox sump or an adjacent room. Once affirmed, here are the possible origins of this transmission leak:

  • A gearbox cap: If it’s incorrectly screwed on…
  • Defective torque converter: Just equipped on automatic gearboxes.
  • From the transmission oil sump: In the event it is cracked or damaged
  • One of your seals damaged

How to repair a gearbox leak on Audi A3?

After discovering the different origins of a gearbox or transmission oil leak on your Audi A3, we will try to describe to you what are your options to repair this oil leak. Bear in mind that in any case, after having identified a leak, you must go to a garage to distinguish the exact origin of the leak, otherwise your gearbox might be irreparably damaged. Nevertheless, here is how the service of the garage and the solutions that will be offered to you:

  • Very often to distinguish the leak, the auto mechanic will have to take apart your gearbox, which will involve a high labour cost.
  • If you’re lucky and it’s just a gasket, your auto mechanic will change it and reassemble the gearbox of your Audi A3, otherwise you’ll have to replace the whole gearbox
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  • Finally, for the do-it-yourselfers, it is possible to use a sealing kit which is just powerful in the case of small leaks, this kit is worth around 40 euros

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Prevention: How to avoid gearbox leaks on your Audi A3?

There aren’t many alternatives to avoid gearbox leaks on your Audi A3 , however here are the three most effective:

  • Regular oil changes on your gearbox deck.
  • Drain your gearbox and put new oil in it. If you want to know everything about this action, please read our content page on this subject.
  • Use a particular additive for routine service of gearbox seals, these additives will restore flexibility and allow to plug slight leaks, you will locate some for a few dozen euros at Oscaro.

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Price of a Audi A3 gearbox

Finally, we would like to give you an indication of how much it costs to replace the gearbox of a Audi A3. As you have realized, gearbox problems generally lead to a whole replace of this part. It is hard to give you a precise price because depending on the garage the labour can vary quite a lot and depending on your engine the component will as well have a different price, however, we estimate that the repair, labour included will cost you between 800 and 2000 euros , knowing that the component alone costs between 400 and 1000 euros.

To get more tips on the Audi A3, take a look at the Audi A3 category.