RECENTLY MY CAR PRESENT TO FAILURES.
FIRST THE OIL SENSOR LIGHT TURNS ON, AND SUDDENLY TURNS OFF ALL THE TIME. SO I WOULD LIKE TO CHANGE THE OIL SENSOR, BUT I CANT FIND IT UNDER THAT NAME,CAN YOU PLEASE TOLD ME WHATS THE NAME OF THIS PART?
AND SECOND THE ABS LIGHT TURNS ON, AND SUDDENLY TURNS OFF ALL THE TIME, THE AUDI SCANNER TELLS THAT THERES AN OVERSIGNAL (AS I REMEMBER)IN THE FRONT LEFT WHEEL, I CHANGED THE SENSOR BUT STILL THE SAME TROUBLE, BEFORE THE ABS LIGHT COMES ON, I CAN HEAR A NOISE LIKE METAL FRICTION, SOMEONE TOLDE ME THAT IS THE ABS GEAR, COULD YOU PLEASE TELL ME IF THIS IS CORRECT? AND WHATS THE NAME AOF THE PART IM LOOKING FOR?

THANK YOU SO MUCH.

 

You have to figure out which oil sensor is throwing the light. Check your owners manual, its either the oil pressure light, or oil quality/level light.
As for the ABS sensor you changed that yourself? Those are pretty hard to do on an A3, since your hearing a grinding noise i would take out the axle and see if the sensor ring is contacting the sensor or something.

 

OK, TOMORROW ILL TAKE THE CAR TO THE DEALERSHIP, TO FIGURE OUT THE OIL SENSOR, AND CHECK THE SENSOR RING, DO YOU MEAN THE ABS RING?? THE ONE THAT LOOKS LIKE A GEAR?
AND ONE NEW TROUBLE, THE CAR LOOKS LIKE ITS UNTUNED, AFTER ACCELERATING THE CAR DROP THE REVOLUTIONS TOO MUCH. FEELS LIKE THE CAR ITS GOING TO STOP.