Parking sensors 2015 E220 AMG

[Chr15MGN]

Hey everyone, new here first time post.

My front parking sensors seem extremely sensitive over the last few months, more the front left one over the right. I can be sitting stationary at lights and it pings full red as thought something is inches away.

I've not had the car waxed or anything changed recently nor has it been in a bump.

Any ideas what it could be?

Thanks
Chris