Type 44 trivia contest

Scott DeWitt scotty at advancedautomotion.com
Sat Aug 9 17:22:53 PDT 2014

I would wager it is the vacuum reservoir for the diff locks.


On Sat, August 9, 2014 6:16 pm, DeWitt Harrison wrote:
> While poking around the trunk of my '88 5KCS, in pursuit of space for rear
> speaker enclosures, I came across a part I could not identify per function
> or even system. It is of interest not only for the sake of pure science
> but
> because I may want to move it and would like to know why it is located
> where it is.
> It's a soup can size, hollow black plastic cylinder with one end dome
> shaped and the other flat with a black rubber vacuum line connected to a
> nipple. It is mounted to the rear seat bulkhead, by a metal bracket, near
> the left-rear seat belt reel. The black hose runs forward from there and
> soon after it is forward of the bulkhead, it transitions to a small
> diameter (3mm?), rigid, white plastic tube similar to the tubing used in
> the vacuum controls for the a/c vents, etc.. This tube then runs under the
> rear seat, toward the car center, to the transmission tunnel at which
> point
> it bends frontward again, and runs toward the front of the car, under the
> carpet along the tunnel. It seems this soup can component could have
> easily
> been located under the left passenger seat area.
> So far, I have not gone to a lot of effort to find out where it goes once
> it reaches the general vicinity of the center stack of the dashboard.
> Can't
> find it in ETKA so far (no part number search in there I'm aware of) in
> relation to either the central locking system or A/C control. The Audi p/n
> on the part itself is 049-129-808-A.
> Major guru points to the person who can identify its function and the
> rationale for its trunk location!
> Best,
> DeWitt
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Scott DeWitt
Advanced Automotion
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