Outdoor mirror clapping??!!

Hello guys! I need your advice. For some time now (at least a quarter of a year) I have been working on my two exterior mirrors at irregular intervals…. It only started with the one on the passenger side and now it’s both! I’ve tried to stay awake at night, either the tiredness (work early again) made me a dash through the bill or nothing happened!!! I can tell you this is not nice!!!! I have to say my Au to stand on the street and always in company of other cars, but there is nothing to do with it! I also know no what comes to fold in after the mirror??? Can ni explain to me who and why someone should do such a thing over a long period of time???? What would you do at my place??? Maybe you have some good tips to finish the whole… Greeting rubber ear