I'm new to i3, I have a 330i and an X5 and do all my own mechanical work so am familiar with the normal parts of BMW. I am testing the electric waters for the first time with a second hand 2014 i3 Rex. The i3 washer pump location is so easy compared to a 3 series or X - it takes about 10 minutes to sort this out.
Document with Pictures: https://docs.google.com/document/d/1QnF ... sp=sharing
The i3 uses the same pump style as all their other cars and the filter can clog over time. If you hear the pump buzzing but no washer fluid is coming out then the filter is clogged. If you no longer hear the pump buzzing then it is the pump. I would check the filter first before ordering a replacement pump. You will only need a T-25 bit to sort out this issue:
1. Open the Frunk
2. Using a T-25, remove the six screws holding down the storage box in the frunk:
3. remove the covers to each side of the storage box, they are held in place by velcro
4. remove the storage box
5. To the left of the storage box, you will see the washer pump, it is held in place by the slot in the side of the washer reservoir. Remove the top electrical connection, then the clip holding each side of the water tubes to the bottom of the pump:
6. Pull or pry the pump away from the reservoir and lift up, the pump has a tube in the bottom that connects to the rubber filter in the reservoir.
7. Remove the rubber filter that the pump was seated in and check that it does not have slime or debris in or on the filter. I could not take a picture of this as I had my finger in the filter hole. Mine was clogged with slime and debris.
8. Let some fluid drain out of the reservoir to clear any slime from the bottom of the washer reservoir and then use a rubber stopper or rubber glove to plug the hole.
8. Clean the filter and replace
9. Reseat the pump, put the hoses back on, push the clips down to lock them in place, and the electrical connection, and test the washers.