Front Sensor, Removing And Installing: Removing

-- Detach the front wheel housing liner at the bottom and near the bumper and push it aside. Refer to FRONT WHEEL HOUSING LINER, REMOVING AND INSTALLING .

-- Press both retainers to the side in direction of -arrows- and at the same time, push the sensor -1- through from the outside toward the inside.

Fig 1: Removing Front Sensor

Courtesy of AUDI OF AMERICA, LLC

-- Disconnect the connector -2- by sliding the retainer -3- toward the rear and pressing the release down.