windscreen washer not working

sorry if this has been covered before, but for a start how does the windscreen washer work ? its a 2005 facelift c180k classis SE estate the rear works fine
but the front doesnt. i press the button for a single wipe and it wipes, when i hold it in it just wipes but no fluid comes out and you cant hear any motor running

any ideas ?

 

Are you getting to the second click of the switch?

eg. you push the stalk to the first click for a single wipe and then push a little bit harder to get to the second click to get the wash.

 

im really going to sound like an idiot now, i tried it again and you are right there is a second click, i didnt realise how much pressure you had to put into it. thankyou, i'll put this one down to an ID-10-T fault

 

Don't worry i did exactly the same thing, when first got mine