A4 Quattro Wagon L4-2.0L Turbo (CAEB) (2009)
Discharge Air Temperature Sensor / Switch: Service and Repair
Interior Temperature Sensor Fan
Temperature Sensors
Interior Temperature Sensor Fan
‹› The same Interior Temperature Sensor Fan (V42) - B - is currently installed in both versions of the A/C Control Head Climatronic Control Module
(J255) ("Basis" - E - and "Comfort" - F -) The blowers run at different rpm's (approximately 2,500 to 3,200 rpm on the "Basic" A/C system and
approximately 2,800 to 3,500 rpm on the "Comfort" A/C system) due to the different installation locations of the A/C Control Head. Refer to
Vehicle Diagnosis, Testing and Information System VAS 5051 in "Guided Fault Finding" function.
‹› Depending on the version of the A/C Control Head Climatronic Control Module (J255) there may be a molded seal - C - present; if necessary
reinstall one again.
Removing
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Remove the A/C Control Head, Climatronic Control Module (J255). Refer to => [ A/C Control Head Module ] See: Heating and Air
Conditioning/Service and Repair/Removal and Replacement/A/C System Control and Regulation Components.
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Remove screws - A -.
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Remove the Interior Temperature Sensor Fan (V42 ) - B - out of the A/C Control Head Climatronic Control Module (J255).
Installing
Installation is carried out in the reverse order, when doing this note the following.
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When installing Interior Temperature Sensor Fan ( V42), do not press on the fan wheel - D -, hold fan firmly at housing instead.
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Check DTC memory of A/C control head Climatronic Control Module (J255) and erase any displayed malfunction if necessary. Refer to Vehicle
Diagnosis, Testing and Information System VAS 5051 in "Guided Fault Finding" function.