Noticed these hanging under front bumper on each side near the fog lights.
What are they? Ohh 98 xk8 btw...

 

Headlamp washer jets.

bob gauff

 

+1

Often disconnected when they fail!





The chrome plastic half moon shaped cover (arrowed in red) is the one you can see at the bottom of the headlamp unit.

When the powerwash is activated, this is pushed forwards so the wash spray is directed over the headlamp. It retracts after the wash.

Graham

 

Thank you both!

 

Or when you remove the pump from the washer reservoir to make room for water methanol injection.