Posted comment earlier about battery acid leaking onto clutch line and brake line causing severe damage to both lines... spoke with Audi and they stated that the engine does not have to be removed for the brake line to be fixed... the most likely culprit of this leak is due an overcharged battery due to a jump or manual re-charge (note: According to Audi, never replace the S4 battery with anything other than with an Audi battery... of course they would say this, but he was pretty convincing... 2nd note: I do have an Audi battery in my S4, and I'm still having the issue... Audi may help pay for this B/C of that fact, but they haven't committed to it until further investigation). The total, according to over-the-phone diagnosing, was going to be B/N 1 and 2 thousand bucks at the dealer.

- Albuquerque, NM, USA

Like many other people who own an Audi S4 with 50,000 miles, I am having brake light issues. Only mine are much more severe that what I have read thus far. I took my car in for it's 60000, and had the mechanic check the brake light. Leading up to the repair, I had been *losing brake fluid* almost monthly. This should never happen, for any reason. But, my mechanic took three hours and discovered that the battery was leaking sulfuric acid onto my brake line, my power steering line, and my clutch line. He stated, "only a mechanical moron would house the metal and steal cables underneath sulfuric acid." Consequently, I cannot drive my car any more and the repairs inlcude the taking out of the entire engine to get to the source, which may/may not be able to be fixed. Mechanic stated that this should be a recall issue, and that the safety issue on this type of design-flaw is obvious and certain. I expect Audi will not cover this defect, causing me to shell out, are you ready for this, 2-3,000 bucks to get it replaced. [xxx] the man. I'll post more when I know more. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Albuquerque, NM, USA