[AHall]

Originally Posted by ambletx

Yup been there, done that with my old 2018. https://f90.bimmerpost.com/forums/sh...1739730&page=2

ambletx did you have the blue coolant prior to the repair? Surely they changed something to prevent this from happening again. In your case the cause does not appear to have been caused by the coolant tank. It does not look like the tank or cap were replaced.