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Home >> Audi >> 2020 >> S4 Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 48 (Air Conditioning (Refrigerant R134A Servicing) (2 Of 2)) >> 87 Air Conditioning >> Refrigerant Circuit General Information >> Switches And Sensors On Refrigerant Circuit And Connections >> A/C Compressor -G111-

A/C Compressor -G111-

WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying A/C Compressor Speed Sensor G111
GWWV87-1276Courtesy of AUDI OF AMERICA, LLC
NOTE:

Switch pressures, removing and installing switches as well as switch arrangement and version. Refer to vehicle specific refrigerant circuit Refrigerant Circuit .

Inductive sensor

The sensor pulses (4 per compressor revolution) and the engine speed enable the Front A/C Display Control Head -E87- or the Climatronic Control Module -J255- to calculate belt slip.

If the belt slip exceeds a specified value, the compressor is switched off by the control module via the A/C clutch.

NOTE:

Installed in Audi vehicles with an A/C compressor driven the a ribbed belt and with Zexel compressor. Refer to Refrigerant Circuit .

Beginning from production year 2006, the name of the "Zexel" A/C compressor was changed from "Zexel" to "Valeo".

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