I found that since a few flights my 912UL is not sucking back coolant from overflow bottle.
Effect is that I have more and more liquid in overflow and less in expansion tank.
I can't see any leak in overflow line and also other lines, I have standard big overflow bottle..
What can be?
Effect is that I have more and more liquid in overflow and less in expansion tank.
I can't see any leak in overflow line and also other lines, I have standard big overflow bottle..
What can be?
