Check for blown fuse, blocked feed lines or the pump or the wiring to it.
In the MPS6 it's behind the RHF guard and the pump motor is at the bottom of the water reservoir. May be the same for the 3. In any event, you have to pull off the bottom shrouds under the front of the engine to get to it. You need double joints in your wrist to get at it.
But check the washer pump fuse first, then the jets, then the wiring connections at the pump motor and the rubber lines to and from the pump.
Is it dumping water on the ground? In that case, a line has come off.
Can you hear the pump running? If not it is either not getting power or it is jammed with crud from the water, or you have lots of wax gumming up the jets, which you can clean gently with a pin.
If the pump can be heard running freely, either you have insufficient water or the lines are blocked or may only be getting a partial trickle from one or more jets. Get someone to operate them while you examine them one at a time.
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