Hello to all please help meI have a Car Citroen c5 2001 model 5door you are having prob in front screen wash When you press from inside of car so there comes no water on front screen?

Answer 1

I had a similar problem where the front screen wash would often stop working. I could get it going again for a week or two by removing the tube under the hood and forcing air down into the pump with a bicycle pump. It was as if there was some dirt which I could displace but would always return to cause the blockage. Eventually I took the plunge and dived in.

It's a big job but not as bad as I'd feared. Someone told me the screen-wash bottle was behind the front wheel and that you need to remove the wheel and the trim under the wheel arch. Wrong ! To gain access to it you don't need to remove the front wheel but you do have to remove the whole of the plastic front of the car - the bit with the number plate on. It will need two of you to lift it off but it's not as bad a job as it sounds. Simply search for all the screws and clips, starting with the four torx bolts near the screen-wash filler. Having removed all the fixings you need two people, one each side, to pull the whole section of trim forward and disengage it from the body. It's a bit frightening to discover you are holding what appears to be about a quarter of the car and it's all plastic but, having done that, you now have full access to the screen-wash bottle.

So - I removed the screen-wash bottle. Put it in the sink, filled it with bleach and hot water. Gave it a very thorough clean out and replaced it. Guess what ? Problem remained !!!

On a "kill or cure" basis I then removed the pump itself and blew down the outlets with compressed air at 100psi. Whatever was in there must have blown out because it's now fine. If only I'd known I would have blown the compressed air down the feed pipe without all the dis-assembly but there is a danger that if you do this you might blow the tube off the pump nipple so you'd have to take the car apart anyway to put it back.

One thing I still don't understand is how this system manages to send the water to the front or rear screen as required. There's only one pump but it has a dual outlet. If you run the pump with no tubes attached water squirts out of both nipples. Can anyone solve the mystery of how it differentiates between front and rear screens ?