Since all the talk about corroded fuel lines, I took a peek under my 160k miles S4 today. Doesn't look bad. There a four rubber mounts that I see, without jacking up the car. May be one more way up front. Is this corrosion easy to spot, or is under the rubber and you don't know you have a problem until, drip,drip,drip....? Gary Martin CT-USA 94 UrS4 91 200 TQA