Some complications on our vehicles seem insignificant but can be troublesome, such as a window that no longer goes down. Others, whether or not they are not dangerous, will restrict you from using your car in a usual way, such as having a flat tire or having the fuel cap of your Mercedes Classe S stuck. You will no longer have the capacity to fill your tank and therefore eventually not be able to use your car. It is precisely for this motive that we have written this document to enable you find a quick answer to your fuel cap trouble so that you can use your car normally. To perform this, we will first try to understand why the fuel cap of your Mercedes Classe S is blocked, and secondly, how to unblock it.


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

So let’s commence our document with the origins of your tank cap problem on Mercedes Classe S. We will try to describe you the different triggers of a blockage of this one.

Fuel tank cap with locker stuck on my Mercedes Classe S

In the event that your car is outfitted with a tank cap with lock you will be in the most delicate situation, because the locks of these caps can get gripped with time and restrict you from accessing the entrance of your tank. It is also possible that the lock of your tank has twisted and no longer reacts to the key of your Mercedes Classe S.

Conventional fuel cap stuck on my Mercedes Classe S

Second reason, and the least difficult, in the event of a classic tank cap that has no lock and is mostly protected by a closed fuel door, if you have blocking complications on this sort of cap, it is often only linked to a cap that has not been closed in the axis and the thread of the latter is as a consequence blocked.
<2>How do I unlock the fuel cap on my Mercedes Classe S?

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

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

First option and the one you should consider first. You have the possibility 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 several minutes for it to take effect, and try once again to open the fuel cap of your Mercedes Classe S. If it does not work, replicate the operation and let it work for a longer period.

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

As a second option, you can try to use your spare key, which most frequently being much less utilized should more easily unlock the lock on the tank cap of your Mercedes Classe S. This may seem evident but occasionally it all comes down to small details. No matter the reason, if you have managed to open your tank, we advise you to buy a new tank cap to avoid getting stuck in this condition again.

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

To conlude, last option, you can try to play the key in the lock of the fuel cap of your Mercedes Classe S to facilitate the opening of it. In fact, if the cylinder is a little seized up or broken, it will unlock more easily by moving the key in different axes at the same time as you try to rotate it.

If you need more guides on the Mercedes Classe S, go to our Mercedes Classe S category.