[Shane318i]

bmw 318i touring when operating front washer not working when operating rear washers both front and rear working what might this be?????

 

[FPSChris]

Bad relay likely, I don't know much about 2007 onwards.
If you can find the relay location using google and see if there is another relay on the car, use the known working relay in the window washers spot to test. If it works, buy relay off ebay.

 

[Evog]

Might also be related to the multi switch (ie the switch at the end of the wiper stalk).