In this article we will try to help you solve a issue that can be frustrating, and if not managed on time become a financial drain. Obviously, finding a leak on your vehicle is never reassuring, and it is even less reassuring when it’s a gearbox leak on your Audi S3 . In this article, we’re going to help you verify that it’s indeed a gearbox leak, then, how to remedy a gearbox or transmission leak, then, give you some prevention suggestions, and, at last, give you an idea of the price of the gearbox of a Audi S3.

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Gearbox leak on Audi S3, source and manifestation

If you have spotted an oil stain on the ground, you will need to validate that this leak is indeed coming from the gearbox of your Audi S3. To do this, you will need to go under your vehicle and follow the oil leak. If it is transmission oil, it must be coming from your gearbox sump or an adjacent room. Once established, here are the possible origins of this transmission leak:

  • A gearbox cap: If it’s improperly 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 fix a gearbox leak on Audi S3?

After discovering the different origins of a gearbox or transmission oil leak on your Audi S3, we will try to show you to you what are your possibilities to remedy this oil leak. Realize that no matter the reason, after having distinguished a leak, you must go to a mechanic to determine the exact source of the leak, otherwise your gearbox might be irreparably damaged. However, here is how the service of the mechanic and the solutions that will be offered to you:

  • Very often to determine the leak, the mechanic will have to dismantle your gearbox, which will necessitate a high labour cost.
  • If you’re lucky and it’s just a gasket, your mechanic will change it and reassemble the gearbox of your Audi S3, otherwise you’ll have to replace the complete gearbox
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  • Finally, for the do-it-yourselfers, it is possible to use a sealing kit which is only effective 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 S3?

There aren’t many alternatives to avoid gearbox leaks on your Audi S3 , 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 manipulation, please examine our article on this subject.
  • Use a specific additive for routine service of gearbox seals, these additives will restore flexibility and enable to plug slight leaks, you will find some for a few dozen euros at Oscaro.

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Price of a Audi S3 gearbox

Finally, we would like to give you an idea of how much it costs to replace the gearbox of a Audi S3. As you have realized, gearbox problems generally lead to a complete replace of this part. It is hard to give you a precise price because depending on the mechanic 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.

If you need more tutorials on the Audi S3, go to our Audi S3 category.