Here's a weird one.

My ABS/Brake light lit up on the dash so I assumed it was a bad sensor like in the past. Also that's exactly what the Ross Tech computer indicated. The sensor was replaced and the light immediately triggered back on. When the computer was connected back up again this time, it claimed it was the other sensor. I held off on that repair thinking it's highly unlikely that both sensors would malfunction in perfect sync.

I made an interesting discovery. The light absolutely will not go on if there's no moisture present under the car. It's been hot and dry lately. I discovered that the ABS/Brake light will only trigger or should I say, the ABS system will only malfunction if the air conditioning is being used. That of course creates lots of water in the area of the front wheels. I'm convinced that moisture coming from the AC condensation is creating electrical issues. These same symtoms exsist on very foggy or wet days. Does anyone have a clue as to what I could look for? I really need to have this extremely irritating problem go away once and for all? My mechanic is currently stumped and this discussion board so far has never failed me.

I'd be interested to hear anyone's comments relating to the above.

Thanks in advance!

dommi3/Tiburon, California
1997 A8 4.2 Quattro
Silver/Gray/17" Audi A8 Wheels
Every Available Option
------------------------------
Previous Audi

1990 V8 Quattro