I've just replaced both pumps on mine...just a heads up, a number plate search showed two different pumps required for my car (ph2), and Renault list them at £30+ and £40+ depending on which you want...one has a straight pickup, and one a 90 degree pickup. Both are shared part by Renault, Citroen and Peugeot and available aftermarket for between £12 - £15.
As Russo says, go the whole hog and remove all the wiper gubbins following cliosports "how to" and remove the washer bottle, because this revealed that both pumps were the 90 degree type (so not as per the microfiche) and would have been an absolute pig to locate properly with the bottle in place, also saving your knuckles, temper and blood pressure!!!You can also give the bottle a good flush out at the same time for peace of mind.
There are some fixes on Reno forums taking the pumps to bits and trimming various seals, however mine had stopped working altogether due to the motor housing being full of rusty water!...and for what they cost new, not worth the hassle.
The wiper arm puller is a definite though.
Happy tinkering...!