BMW Electric Water Pump Bleed / Purge 135i 335i 535i z4 n54

Instructions for BMW Electric Pump Bleed / Purge 135i 335i 535i z4

Steps:

1) Make sure car is cold. Then remove coolant reservoir cap.
2)Turn ignition on (Without pressing brake pedal)
3) Set heat to "highest" Temperature and the level to "Lowest"
4)Turn off ignition
5)Turn on ignition without pressing brake pedal. Instead, press accelerator pedal for 10 seconds.
6)You should now be able to hear the pump running. Wait 10 minutes for process to finalize.
7)Once its finished, top off to max level and close reservoir.

Tip: You might benefit from squishing on coolant hoses to release extra air bubbles.