its incorporated into the maf sensor.
The clue is in the numbers. 18t is an 1800cc turbo, the 3.0 is a 3000cc engine.
The Vehicle does not have a blow off valve. so you will never find it.
Where is the crank shaft sensor located in a Audi a6
Where is the answer
Inside the airbox.
Probably the speed sensor has crapped out. Or the module has.
Farthest point right before the catalytic converter.
turnes on and off the internal sensor for the alarm
Assuming that the brake pads were just changed and the sensor is still on, Perhaps the sensor wire was broken during installation causing the sensor to stay on. Happened on my 2001 a4.
Over by the air filter's box.
couple of inches behind oil filter housing
B7 Audi A4 C6 Audi A6 ~200kg