Quote:
Originally Posted by AleksDeRussian
I know it's a common problem but both expansion tanks have been holding for weeks now. Would the main expansion tank be low due to leaking intercooler too?
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No, they're separate loops.
There's a procedure you do after filling the intercooler loop to "burp" the system so you don't have to keep adding fluid like you did.
https://f80.bimmerpost.com/forums/sh....php?t=1525074
I used it when my cooler failed, keep an eye on that level. My car was also pulling some power at WOT when it happened.