On this page we will try to help you resolve a issue that can be frustrating, and if not taken on time become a financial drain. In truth, spotting a leak on your car is never reassuring, and it is even less calming when it’s a gearbox leak on your Peugeot 407 . In this article, we’re going to help you ensure that it’s indeed a gearbox leak, then, how to repair a gearbox or transmission leak, then, give you some prevention tips, and, finally, give you an idea of the price of the gearbox of a Peugeot 407.
Gearbox leak on Peugeot 407, source and manifestation
If you have spotted an oil stain on the ground, you will need to verify that this leak is indeed coming from the gearbox of your Peugeot 407. To do this, you will need to go under your car 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 sources of this transmission leak:
- A gearbox cap: If it’s improperly screwed on…
- Defective torque converter: Only 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 Peugeot 407?
After discovering the different sources of a gearbox or transmission oil leak on your Peugeot 407, we will try to describe to you what are your possibilities to repair this oil leak. Bear in mind that no matter the reason, after having founded a leak, you must go to a mechanic to determine the exact source of the leak, otherwise your gearbox might be irreparably damaged. Nevertheless, 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 involve a high labour cost.
- If you’re lucky and it’s just a gasket, your mechanic will replace it and reassemble the gearbox of your Peugeot 407, otherwise you’ll have to change the complete gearbox
- 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 Peugeot 407?
There aren’t many solutions to avoid gearbox leaks on your Peugeot 407 , nevertheless here are the three most effective:
- Frequent 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 read our content on this subject.
- Use a specific 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 Peugeot 407 gearbox
Finally, we would like to give you an idea of how much it costs to change the gearbox of a Peugeot 407. As you have understood, 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 mechanic the labour can vary a lot and depending on your engine the part 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 part alone costs between 400 and 1000 euros.
If you want more guides on the Peugeot 407, go to our Peugeot 407 category.
