I did it through the small panel hole in the trunk. Got it loose with a socket and a long exension beneath the car and then dug my forearm in the hole with a small socketwrench in my hand. It was very tricky felt more like a gynecologist working in the blind. When the clamp was so much unscrewed I could move it over the hose and start carefully twisting the hose off. I think I removed all the houses from the intank essambly first in order to get more space. Probably would help with another pair of hands.