Bin them! They are the most pointless trouble causing piece of crap on the Z4, E85.
Bought my Zed 2 years ago and it is always parked outside with ass end pointing down the hill (if that makes any difference) and thanks to the forum I decided to take the bung out on the roof motor side and ditch it. I left the bung in on the other side.
Durham Dave relocated the motor to the boot and when he took it out it had been replaced at some point, before me. It was in pristine condition and bone -dry. The other side, where I had left the bung in was full of water. So Dave kindly binned that one for me as well.
So, if you have doubts as to what to do with them, I hope I have answered them.
Bought my Zed 2 years ago and it is always parked outside with ass end pointing down the hill (if that makes any difference) and thanks to the forum I decided to take the bung out on the roof motor side and ditch it. I left the bung in on the other side.
Durham Dave relocated the motor to the boot and when he took it out it had been replaced at some point, before me. It was in pristine condition and bone -dry. The other side, where I had left the bung in was full of water. So Dave kindly binned that one for me as well.
So, if you have doubts as to what to do with them, I hope I have answered them.