On this page we will try to help you resolve a problem that can be annoying, and if not handled on time become a financial drain. Obviously, distinguishing a leak on your vehicle is never reassuring, and it is even less reassuring when it’s a gearbox leak on your BMW X3 . Today, we’re going to help you ensure that it’s in truth a gearbox leak, then, how to remedy 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 BMW X3.

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Gearbox leak on BMW X3, origin and manifestation

If you have identified an oil stain on the ground, you will need to validate that this leak is in truth originating from the gearbox of your BMW X3. To achieve this, you will need to go under your vehicle and follow the oil leak. If it is transmission oil, it must be originating from your gearbox sump or an adjacent room. Once confirmed, here are the possible origins of this transmission leak:

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

How to fix a gearbox leak on BMW X3?

After discovering the different origins of a gearbox or transmission oil leak on your BMW X3, we will try to describe to you what are your possibilities to remedy this oil leak. Be aware that no matter the reason, after having identified a leak, you must go to a mechanic to determine the exact origin of the leak, otherwise your gearbox might be irreparably broken. 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 auto technician will have to dismantle your gearbox, which will necessitate a high labour cost.
  • If you’re lucky and it’s just a gasket, your auto technician will replace it and reassemble the gearbox of your BMW X3, otherwise you’ll have to change the whole 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 BMW X3?

There aren’t many alternatives to avoid gearbox leaks on your BMW X3 , 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 task, please examine our content on this subject matter.
  • Use a particular additive for maintenance of gearbox seals, these additives will restore flexibility and allow to plug moderate leaks, you will discover some for a few dozen euros at Oscaro.

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Price of a BMW X3 gearbox

At last, we would like to give you an indication of how much it costs to change the gearbox of a BMW X3. As you have realized, gearbox problems quite often lead to a whole change of this part. It is tricky to give you a precise price because based on the mechanic the labour can vary quite a lot and based 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 need more tutorials on the BMW X3, go to our BMW X3 category.