307 cc does not open

Friends, I press the upper roof opening button, the windows are lowering, but the tailgate cannot be opened back. opening command goes as if it was opened normally, there is no sound from behind, it does not give any error but it does not open, can you help me?

There may be many reasons, brother. lack of hydraulic oil from the switches on the ceiling - hydraulic motor - etc.

There is no problem with the hydraulic motor, I also checked the oil level.

I do not know where my brother is, even at 206 cc, there were 10-12 in your vehicle. on the rear trunk lid etc. on the roof.