Thought I had fixed them all but now notice leak from what looks like timing chain tensioner. Have ordered new crush washer. Assume its ok just to unscrew and then screw back in?
I would replace the tensioner as well. Quite cheap and nice for peace of mind.
https://www.autodoc.co.uk/car-parts/timing-chain-tensioner-10514/bmw/z4/z4-e85
Loughborough
