I have a 2007 s6 that I’m trying to sort out. I purchased it from a dealership (not an Audi dealer) that did a hack job putting the car back together after a small fire. Todays adventure was tracking down where a vacuum line that was taped off. The line is run between the fans and front of the motor and is hanging open on the passenger side of the engine bay. I haven’t been able to find anything missing a vac line. I found a vacuum line parts diagram on line and noticed a line that looks like the one Im trying to find a home for going to a vacuum reservoir. I can’t find the reservoir listed for the s6 anywhere on my car. I do however see a big (or at least big for this car) empty space on the passenger side under the headlight where the line is pointing. Is this where the reservoir goes? Nearly all the damage to the car was in this area so it’s not hard for me to believe a plastic bottle could have melted. Thanks for any help you can provide.
The vac reservoir is on the driver side behind the fender and behind the fender liner. Its a blue plastic piece that looks like 3 balls all linked together.
Thanks, I guess my search will continue for the spot this vacuum line goes…
Well while I have the front end of my car open to replace the ac compressor I found the s6 has 2 vacuum reservoir tanks. On the 2007 I have a small black one about the size of 2 normal highlighters and the much larger blue one that looks like 3 tennis balls stacked up on the passenger side. This may have changed in other years but on the 2007 it’s on the passenger side next to the firewall. I found the bracket when I removed the wheel well liner.