Don't cut the fuel line, I had to replace mine one time and you have to get it through the dealer and it was over $100 for a short 9" line. Although it was on a 420a and not a 1.8, it'd still probably be expensive. I had a bitch of a time getting my fuel filter bolts out. If you're starting to round them off, use a vice-grip to get them off and then replace just the bolt instead of the whole line. You'll also probably need some copper washers.