lost the clip on the vacuum control box

it sounds like my vacuum control box is on its way out. i had a look at it and was taking the wire clips out and the underside one went down in the belly pan and i've tried everything but can't see it never mind get it out, i'm wondering if you can get one to replace it or does the new part come with new clips. i've it secured with a cable tie as it's all i can do. and does any body no if the vacuum box will fail and what happens when that happens. she's going fine the only thing is the noise off it when you stop her, cheers