Can anybody tell me what the plastic tubes/lines are that run along the under body of my 2003 GLI? I was driving down the highway the other day, and a Semi truck dropped a big chunk of ice off of it and I took a shot to my under body. When I got home I checked under neath and notice it dented my fuel filter pretty back and pinched a white plastic hose that was next to the fuel filter. I followed the line and it goes into my rear pass. wheel well. I looked in the owners manual but I can't find anything on these lines that are under there. Some are blue and some are white. Anybody know what it is? I unkinked the hose and everything seems to be running fine, I'm assuming it's some type of vent, maybe for the gas tank, but I've never seen anything like this before, and I'm kind of confused why they would run something like that under the body of a car that sits so low to begin with. I would really like to know what these lines are. Thanks!
Ok, There are three lines one black white and green! Two are fuel lines one is fuel feed line and the other is return line to the tank! The other is a vent line or evap line! So I would check them out very closely for damage! If you look under your hood to the right of the coolant bottle are said lines you can follow each one ond see where it goes and what it goes to! Hope this helps.
The white ones are usually vacuum lines. Have you tried popping your fuel door or truck with the door switches yet?
