We've not had our 2012 Doblo long but I've noticed that when I activate the rear washer jets it is actually the front jets that activate.

Is this likely to be a problem with the pump itself, is it worth changing it out?

Hi, and welcome,

I've had similar on an older car, swap the wiring between the 2 x pumps fixed it,

could be a build / bodge problem..,
or possibly a bad earth - but I would swap the wiring 1st,

Charlie - Oxford