disabling an ur-quattro

[quk@isham-research.demon.co.uk (Phil Payne)]

In message <01bd35e0$81dc8060$15a085ce@cfg001161> "Frank Amoroso" writes:

> How about the cigarette lighter. In the depressed position circuit is closed
> pulled out circuit is open. Quite stealthy, as long as someone doesn't reach
> over and yank it at 50 mph (80 kph). I think the engine continues to run for
> a little bit after the circuit has been open, if this is the case, the cig
> lighter trick would work nicely if you were being car jacked.

You could kill the Hall sensor this way, and leave the cigarette lighter 
functional.  Just wire a relay across the heater contacts, and run the Hall 
sensor wire through the contacts closed when the heater is on.
 
Just get into the car, press the cigar lighter, and start the engine.  By the 
time it's warm and opens the relay, the engine will be running.  

-- 
 Phil Payne
 Committee Member, UK Audi [ur-]quattro Owners Club