200Q no start- update

[Calvin Krug]

Last Monday, my '89 200 decided not to crank when I turned the key. 
After getting some suggestions from listers, I finally had time today 
to look at it, and here's what I found. The number 8 relay under the 
hood - labelled STARTER LOCKOUT- AT, for some reason wasn't working. 
With a jumper wire across the contacts, the car starts and runs fine. 
Now, I just need to find out why the contacts aren't closing.  Is 
this relay controlled by the clutch switch?  If so, how do I get to 
the switch?  That thing is tucked up under the dash above what 
appears to be some heater ductwork.  The clutch and brake switches 
also appear to be connected to a vacuum line. What the heck is that 
for?  I know, I should get a Bentley manual, but I need every penny 
of my Audi repair funds for parts.
Thanks for the assistance, everyone


Calvin K.