In this article we will try to help you fix a problem that can be annoying, and if not handled on time become a financial drain. In truth, spotting a leak on your car is rarely reassuring, and it is even less reassuring when it’s a gearbox leak on your Peugeot 308 . In this article, we’re going to help you confirm that it’s indeed a gearbox leak, then, how to fix 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 Peugeot 308.

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Gearbox leak on Peugeot 308, source and manifestation

If you have spotted an oil stain on the ground, you will need to verify that this leak is indeed originating from the gearbox of your Peugeot 308. To achieve 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 roots of this transmission leak:

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

How to fix a gearbox leak on Peugeot 308?

After discovering the different roots of a gearbox or transmission oil leak on your Peugeot 308, we will try to explain to you what are your possibilities to fix this oil leak. Take note that whatever the case, after having distinguished a leak, you must go to a garage area to determine the exact source of the leak, in any other case your gearbox may be irreparably damaged. Nevertheless, here is how the service of the garage area and the solutions that will be offered to you:

  • Very often to determine the leak, the auto mechanic will have to take apart your gearbox, which will necessitate 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 Peugeot 308, in any other case you’ll have to change the complete gearbox
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  • At last, for the do-it-yourselfers, it is possible to use a sealing kit which is just 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 Peugeot 308?

There aren’t many alternatives to avoid gearbox leaks on your Peugeot 308 , nevertheless 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 on this subject matter.
  • Use a particular additive for maintenance of gearbox seals, these additives will restore flexibility and enable to plug moderate leaks, you will locate some for a few dozen euros at Oscaro.

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Price of a Peugeot 308 gearbox

At last, we would like to give you an idea of how much it costs to change the gearbox of a Peugeot 308. As you have realized, gearbox problems quite often lead to a complete change of this part. It is difficult to give you a precise price because depending on the garage area the labour can vary a lot and depending on your engine the component will as well have a different price, nevertheless, 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 want more guides on the Peugeot 308, go to our Peugeot 308 category.