A6 Sedan V6-3.2L (BKH) (2007)
Control Module HVAC: Service and Repair
Fresh Air Blower Control Module
Fresh Air Blower Control Module
Removing
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Switch off ignition.
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Remove the plenum chamber cover.
CAUTION!
Even when the engine is cold, both pump/valve unit valves can be hot.
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Remove the windshield wiper arm and cowl panel trim
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If necessary, remove the dome brace (not present in all vehicles)
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Remove the air intake unit upper cover => [ Air Intake Unit Upper Cover ] See: Air Duct/Service and Repair/Air Intake Unit Upper Cover.
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Disconnect connectors - A - (to the Fresh Air Blower (V2) and - B -.
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Remove bolts - C -.
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Remove Fresh Air Blower Control Module (J126) - D -.
Installing
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Install the fresh air blower control module (J126) - D -.
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Tighten the mounting bolts - C - by hand (10 Nm).
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Connect connectors - A - (to the Fresh Air Blower (V2) and - B -.
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Before installing the air intake unit upper cover, make sure the connectors - A - and - B - are seated correctly and the cable is routed correctly.
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Install the removed components again in reverse order.
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Check the DTC memory for the Climatronic Control Module (J255) A/C control head and erase any faults displayed if necessary => Vehicle
Diagnosis, Testing and Information System VAS 5051.
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Perform a basic setting and output diagnostic test mode on the A/C system => vehicle diagnosis, testing and information system VAS 5051.