Z4 squeaky window

[neil-c]

My Z4 has developed an annoying habit

When the drivers side window moves (as it does every time i open the door) it squeaks loudly. It sounds like its the window against the botttom seal but not sure how I can lubricate this without smearing the window.

[ccr32]

a bit of silicon spray lubricant should do the trick, but like you say, may leave a few smears on the window for the first few times you use it.

Failing that, you could try some rubber rejuvinator of sorts?