Ignition switch was sticking for weeks but starting i would start the car then pull the swirch back a little an everything was ok i had a music system installed one day five hours later my head lights shut off while driving i pulled over and just thought it was a fuse while the car was running i saw smoke coming from under the hood i lift the hood up an steem was coming from the coolant tank i shut the car of looked under the hood for a moment then tried to start the car an it would not start when i turn the key i hear nothing all lights in the car still come on the radio still comes on the (ash tray light is off the indicator lights off head lights are off) highbeems work windows work everthing els works. i even purchased a new battery an still the same problem next day at day light i looked under the hood on the driver side i saw a puddel of coolant not on the ground but on a flat piece of metal an coolant tank was empty returning the battery at auto zone i bumped into a mechanic from the audi dealer in uniform (my luck) told him the story only about the ingintion switch an the car not coming on an he said he is 90% shure its the ignition switch (1996 audi a6 quatro 2.8) today is jan 23, 2011 help !!!!!!!