Passat Sedan 4Motion V6-3.6L (BLV) (2007)
Intake Air Heater: Testing and Inspection
Intake Air Pre-heating, Checking
Recommended special tools and equipment
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Chilling spray (commercially available)
Checking regulator flap
Observe safety precautions.
Observe rules for cleanliness.
NOTE: Air filter, assembly overview.
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Remove upper section of air filter and filter element.
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Spray thermal element -arrow- with chilling spray and check position of regulator flap -1- :
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above + 23 degrees C, regulator flap -1- must seal the warm air connection,
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Below + 10 degrees C, regulator flap opens warm air connection.