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Discussion Starter · #1 ·
Hi Guys,

I have a question regarding the vacuum brake pump for my BMW 120i EV conversion. The old ICE had a pully that ran the pump but i've put in a electric pump from here:

It turns on when the ignition starts from a relay. The mechanic said to not drive the pump without a mercury switch to turn off the pump when it reaches maximum pressure. As this might implode the diaphragm.

I just want to know if I can run it without this switch thing. I don't mind if the pump is always running.

Attached is a photo of the pump setup.


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