Some problems on our cars seem insignificant but can be annoying, such as a window that no longer goes down. Others, even if they are not severe, will block you from using your car in a normal way, such as having a flat tire or having the fuel cap of your Mercedes Classe M stuck. You will no more be able to fill your tank and therefore ultimately not be able to use your car. It is exactly for this reason that we have written and published this content to enable you find a rapid answer to your fuel cap trouble 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 M is blocked, and then, how to unblock it.


Why is the fuel cap on my Mercedes Classe M stuck?

So let’s start our content with the origins of your tank cap problem on Mercedes Classe M. 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 M

In the event that your car is equipped with a tank cap with lock you will be in the most tricky condition, because the locks of these caps can get gripped with time and stop you from accessing the entrance of your tank. It is also possible that the lock of your tank has twisted and no longer responds to the key of your Mercedes Classe M.

Conventional fuel cap stuck on my Mercedes Classe M

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

Second part of our content, we will try to give you the different solutions to get rid of your fuel cap stuck on your Mercedes Classe M and enable you to put petrol in your car. If you encoutering a fuel trap blocked on your Mercedes Classe M, do not hesitate to browse our content on this subject to unlock it.

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

First alternative and the one you should reflect on first. You have the option to unseal your stuck fuel cap, to achieve 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 few minutes for it to take effect, and try again to open the fuel cap of your Mercedes Classe M. If it does not work, replicate the process and let it work longer.

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

As a second solution, you can try to use your spare key, which normally being much less employed should more easily unlock the lock on the tank cap of your Mercedes Classe M. This may seem obvious but sometimes it all comes down to small details. No matter the reason, if you have been able to open your tank, we suggest you to buy a new tank cap to avoid getting stuck in this circumstance again.

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

To conlude, last solution, you can try to play the key in the lock of the fuel cap of your Mercedes Classe M to facilitate the opening of it. In fact, if the cylinder is a little seized up or damaged, it will unlock with less effort by moving the key in different axes simultaneously as you try to rotate it.

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