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Why has the front screenwash jet on my Citroen C4 failed?

The screenwash on my 2012 Citroen C4 works on the rear screen but not on the front windscreen. This fault has just appeared. But what is mystifying me is that I can hear the pump working when selecting wash for rear screen only, but no sound from the pump when front screen wash required. Can there be two separate pumps in the bottle (which is full)? I have of course checked the pipe work to the jet nozzles and all seems right there. It's the fact that the pump works for one screen and not the other that's baffling me.

Asked on 13 July 2013 by SC, Hinckley

Answered by Honest John
The reason for this is usually that the pipes to the nozzles for the front screen have become kinked in the bonnet hinges when you close the bonnet, preventing the screenwash from getting to the nozzles. Have a look. If I'm right, try to find a way of relieving the kink. It may be that a curved bit of plastic designed to do this has dropped off.
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