Some concerns on our automobiles seem trivial but can be troublesome, such as a window that no longer goes down. Others, even if they are not severe, will prevent you from using your car in a normal way, such as having a flat tire or having the fuel cap of your Mercedes Classe B 3 stuck. You will no more have the capacity to fill your tank and therefore sooner or later not be able to use your vehicle. It is precisely for this purpose that we have written this content page to enable you find a quick answer to your fuel cap issue so that you can use your car normally. To achieve this, we will first try to understand why the fuel cap of your Mercedes Classe B 3 is blocked, and then, how to unblock it.

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Why is the fuel cap on my Mercedes Classe B 3 stuck?

So let’s start our content page with the origins of your tank cap problem on Mercedes Classe B 3. We will try to tell you the different triggers of a blockage of this one.

Fuel tank cap with locker stuck on my Mercedes Classe B 3

In case your car is equipped with a tank cap with lock you will be in the most tricky scenario, because the locks of these caps can get gripped with time and stop you from accessing the access of your tank. It is as well possible that the lock of your tank has twisted and no longer reacts to the key of your Mercedes Classe B 3.

Conventional fuel cap stuck on my Mercedes Classe B 3

Second case, and the easiest, in the event of a classic tank cap that has no lock and is generally protected by a closed fuel door, if you have blocking concerns on this kind of cap, it is generally only connected to a cap that has not been closed in the axis and the thread of the latter is as a result blocked.
<2>How do I unlock the fuel cap on my Mercedes Classe B 3?

Second part of our content page, we will try to give you the different solutions to get rid of your fuel cap stuck on your Mercedes Classe B 3 and let you to put petrol in your car. If you are victim of a fuel trap blocked on your Mercedes Classe B 3, do not think twice to consult our content page on this subject to unlock it.

Use some anti-seize agent to unlock your fuel cap of your Mercedes Classe B 3

First alternative and the one you should reflect on first. You have the option to unseal your stuck fuel cap, to do this you will need to use a WD40 anti-seize type product to lubricate the barrel of your cap. Don’t hesitate to put some in quantity and wait a couple of minutes for it to take effect, and try once again to open the fuel cap of your Mercedes Classe B 3. If it does not work, replicate the operation and let it work a bit longer.

Use the duplicate key to unlock the fuel tank lock of your Mercedes Classe B 3

As a second option, you can try to use your spare key, which most of the time being much less utilized should more easily unlock the lock on the tank cap of your Mercedes Classe B 3. This may seem evident but in certain cases it all comes down to small details. In any case, if you have been able to open your tank, we suggest you to buy a new tank cap to avoid getting stuck in this situation again.

Shake the key while trying to open the tank of your Mercedes Classe B 3

Finally, last solution, you can try to play the key in the lock of the fuel cap of your Mercedes Classe B 3 to facilitate the opening of it. Indeed, if the cylinder is a little seized up or broken, it will unlock quicker by moving the key in different axes simultaneously as you try to rotate it.

To discover more tips on the Mercedes Classe B 3, take a look at the Mercedes Classe B 3 category.