Hello again.
If you have not repaired the breakdown or the air leakage, it is very large, it will be difficult for the witness to go out.
But if the leak is small and everything else works well you can turn it off as follows.
Those vans have in the instrument frame of the central console a button to block the suspension. It is to say the button is squeezed in the case for example of raising it in an elevator, lifting it with an Etcec cat.
This is done so that it does not continue to regulate the suspension in case of a special circumstance.
With the started engine, press the suspension lock button until the witness is turned off or blink.
When you blink or go out you should listen to the noise of the suspension compressor, that indicates that you are regulating.
If you do not go out after flashing and do not hear the compressor means that the compressor does not work.
Look at the fuse under the driver's seat. If it is molten, the most sure thing is that the compressor has a lot of current consumption, therefore it is short -circuited.
It is a consequence of the air leaks. When escaping the air is forced to the compressor to be constantly working and in the end it ends up spoiling.
If the fuse is not molten but the suspension does not regulate a constant level, that is, without the suspension being lowered, it means that the download valve, located in the compressor, does not work. This means that you also have to change the compressor.
I hope it helps you.
All the best.