Humidity Sensor -G355-, REMOVING AND INSTALLING

WARNING: This page is about a different variant/trim than selected.

Courtesy of AUDI OF AMERICA, LLC

NOTE:

The Humidity Sensor -G355- is only installed on vehicles with a "Convenience" A/C system version (on an automatic climate control system).

If there is no Humidity Sensor -G355- installed on vehicles with a "Basic" A/C system version, a permissible stop time is currently calculated by characteristic curves that are influenced by the measured exterior temperature, the "recirculating air mode" function and operating condition of the windshield wipers.

The calculated time must be greater than approximately 20 seconds so that the Stop function is permitted by the Climatronic Control Module -J255-. The stop time can be shortened at a lower exterior temperature, when the recirculating air mode is active and/or when it is raining to prevent the windshield and door windows from fogging up. If the calculated time for the Stop function is less than approximately 20 seconds, it is prevented.

The Humidity Sensor -G355- is integrated in the Rain/Light Recognition Sensor -G397- and cannot be replaced separately when faulty. Rain/Light Recognition Sensor -G397-, Replacing.

The removal of the Rain/Light Recognition Sensor -G397- (with the Humidity Sensor -G355-) is described in different assembly groups depending on the vehicle.

-- Replace the Rain/Light Recognition Sensor -G397- (with the Humidity Sensor -G355-). Refer to OVERVIEW - WINDSHIELD and RAIN/LIGHT RECOGNITION SENSOR, REMOVING AND INSTALLING .