Underboss
there's a plug on the bottom of the reservoir tank
on my Focus, i had to take wheel off, take half of the liner from the wheel arch, unclip it, and then it came out, i had a blocked up one, so had to remove all the junk that was in there
on my Focus, i had to take wheel off, take half of the liner from the wheel arch, unclip it, and then it came out, i had a blocked up one, so had to remove all the junk that was in there