Air doser 307 1.6 hdi

[Cremator]

Hi all new here I have a 307 2006 with 27500 miles on it have a problem with the air doser well I think that’s what it’s call please see pic . Car all runs fine no engine management light on when I rev the engine and it settles back to tick over I get a rattle from the air doser I have marked the area where the rattle comes from any help would be great please thank you I did try a second hand one but still did the same thing dawn