X218 2/3 windscreen jets are under performing

[Cherrypd]

Our (his) X218 has one good and two windscreen washers that could be doing better. The drivers one is excellent but the centre and passenger side spray do reach the screen but are no way near as powerful as the drivers. The nozzles have the 2 letterbox adjustment holes type. They've had some wire down the outlet but the function is still the same.

Any thoughts please.

 

[DSM10000]

If they are like the fan type nozzle on the W211 and others it is almost impossible to clean them out with a wire.

I removed them and soaked them in descaler whichiimproved them for a while. Eventually I had to replace them and they are not cheap!