I had one of these come off last weekend, so I now have the replacement and the spray paint. Once I have them painted and laquered how do you fit them,

Just push into the hole and hope the clips meet or can you ge tthe nozzle to stay out or ccan it safely be pulled out?

Any advice on preventig this happening again,

thanks in advance.

they just clip on to two plastic lugs . you could try supper glue. mine caame off one but have stayed on this time without any glue

To get nozzel out you have to pull it out with your fingers  Just be gentle not to break plastic joints.

In service shop they have some wire tool they use for pulling them. I am loosing plastic covers in averrage one per 6 months so Ive been quite a lot in shop looking them putting new ones.

When out, just push the cover to nozzle untill it clips

And yes, Ive tried putting some glue last time Ive put a new cover and for now seems to be working:)

thanks for the advice, got 2 (one for each side) sprayed and laquered. cannot tell it ever came off now!