Today we will try to help you fix a issue that can be irritating, and if not managed on time become a financial drain. Surely, finding a leak on your vehicle is hardly ever reassuring, and it is even less reassuring when it’s a gearbox leak on your Bmw Serie 3 E90 . Today, we’re going to help you ensure that it’s in truth a gearbox leak, then, how to repair a gearbox or transmission leak, then, give you some prevention suggestions, and, finally, give you an idea of the price of the gearbox of a Bmw Serie 3 E90.
Gearbox leak on Bmw Serie 3 E90, source and symptom
If you have detected an oil stain on the ground, you will need to verify that this leak is in truth caused by the gearbox of your Bmw Serie 3 E90. To do this, you will need to go under your vehicle and follow the oil leak. If it is transmission oil, it must be caused by your gearbox sump or an adjacent room. Once established, here are the possible origins of this transmission leak:
- A gearbox cap: If it’s wrongly screwed on…
- Defective torque converter: Just equipped on automatic gearboxes.
- From the transmission oil sump: In the event it is cracked or broken
- One of your seals broken
How to fix a gearbox leak on Bmw Serie 3 E90?
After discovering the different origins of a gearbox or transmission oil leak on your Bmw Serie 3 E90, we will try to describe to you what are your options to repair this oil leak. Remember that in any case, after having founded a leak, you must go to a garage area to distinguish the exact source of the leak, in any other case your gearbox might be irreparably broken. Nevertheless, here is how the service of the garage area and the solutions that will be offered to you:
- Very often to distinguish the leak, the auto technician 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 technician will change it and reassemble the gearbox of your Bmw Serie 3 E90, in any other case you’ll have to replace the whole gearbox
- At last, for the do-it-yourselfers, it is possible to use a sealing kit which is only 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 Bmw Serie 3 E90?
There aren’t many alternatives to avoid gearbox leaks on your Bmw Serie 3 E90 , however 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 article on this subject matter.
- Use a specific additive for routine service of gearbox seals, these additives will restore flexibility and allow to plug moderate leaks, you will locate some for a few dozen euros at Oscaro.
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Price of a Bmw Serie 3 E90 gearbox
At last, we would like to give you an idea of how much it costs to replace the gearbox of a Bmw Serie 3 E90. As you have understood, gearbox problems quite often lead to a whole replace of this part. It is hard to give you a precise price because depending on the garage area the labour can vary quite a lot and depending on your engine the component will also 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 perhaps you have any further questions about the Bmw Serie 3 E90, do not hesitate to consult our Bmw Serie 3 E90 category.
