On this page we will try to help you solve a issue that can be annoying, and if not handled on time become a financial drain. Surely, finding a leak on your car is never reassuring, and it is even less calming when it’s a gearbox leak on your Bmw Serie 7 . Today, we’re going to help you ensure that it’s obviously a gearbox leak, then, how to remedy a gearbox or transmission leak, then, give you some prevention suggestions, and, finally, give you an indication of the price of the gearbox of a Bmw Serie 7.
Gearbox leak on Bmw Serie 7, source and symptom
If you have noticed an oil stain on the ground, you will need to confirm that this leak is obviously originating from the gearbox of your Bmw Serie 7. 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 established, here are the possible sources of this transmission leak:
- A gearbox cap: If it’s incorrectly screwed on…
- Defective torque converter: Just equipped on automatic gearboxes.
- From the transmission oil sump: In the event that it is cracked or damaged
- One of your seals damaged
How to repair a gearbox leak on Bmw Serie 7?
After discovering the different sources of a gearbox or transmission oil leak on your Bmw Serie 7, we will try to describe to you what are your options to remedy this oil leak. Bear in mind that no matter the reason, after having identified a leak, you must go to a garage to identify the exact source of the leak, otherwise your gearbox may be irreparably damaged. Nevertheless, here is how the service of the garage and the solutions that will be offered to you:
- Very often to identify the leak, the mechanic will have to dismantle your gearbox, which will require 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 Bmw Serie 7, otherwise you’ll have to change the complete gearbox
- 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 Serie 7?
There aren’t many solutions to avoid gearbox leaks on your Bmw Serie 7 , 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 action, please examine our content on this subject.
- 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 Serie 7 gearbox
At last, we would like to give you an indication of how much it costs to change the gearbox of a Bmw Serie 7. 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 the labour can vary a lot and depending on your engine the part 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 part alone costs between 400 and 1000 euros.
If you want more tutorials on the Bmw Serie 7, go to our Bmw Serie 7 category.
