Today we will try to help you resolve a problem that can be frustrating, and if not managed in time become a financial drain. Surely, finding a leak on your car is rarely reassuring, and it is even less reassuring when it’s a gearbox leak on your BMW 5 Series . Today, 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 tips, and, at last, give you an idea of the price of the gearbox of a BMW 5 Series.
Gearbox leak on BMW 5 Series, origin and symptom
If you have detected an oil stain on the ground, you will need to validate that this leak is indeed coming from the gearbox of your BMW 5 Series. To get this done, you will need to go under your vehicle and follow the oil leak. If it is transmission oil, it must be coming from your gearbox sump or an adjacent room. Once validated, here are the possible origins of this transmission leak:
- A gearbox cap: If it’s wrongly screwed on…
- Defective torque converter: Only equipped on automatic gearboxes.
- From the transmission oil sump: In the event that it is cracked or broken
- One of your seals broken
How to repair a gearbox leak on BMW 5 Series?
After discovering the different origins of a gearbox or transmission oil leak on your BMW 5 Series, we will try to describe to you what are your options to fix this oil leak. Take note that whatever the case, after having distinguished a leak, you must go to a garage to determine the exact origin of the leak, in any other case your gearbox might be irreparably broken. However, here is how the service of the garage 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 require a high labour cost.
- If you’re lucky and it’s just a gasket, your auto mechanic will replace it and reassemble the gearbox of your BMW 5 Series, in any other case you’ll have to replace the complete gearbox
- At last, for the do-it-yourselfers, it is possible to use a sealing kit which is just 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 5 Series?
There aren’t many alternatives to avoid gearbox leaks on your BMW 5 Series , 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 task, please examine our content on this subject.
- Use a specific additive for maintenance of gearbox seals, these additives will restore flexibility and enable to plug slight leaks, you will discover some for a few dozen euros at Oscaro.
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Price of a BMW 5 Series gearbox
At last, we would like to give you an idea of how much it costs to replace the gearbox of a BMW 5 Series. As you have realized, gearbox problems quite often lead to a complete replace of this part. It is hard to give you a precise price because depending on the garage the labour can vary quite a lot and depending on your engine the part 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 part alone costs between 400 and 1000 euros.
Whenever you have any further questions about the BMW 5 Series, do not hesitate to consult our BMW 5 Series category.
