A6 Quattro Sedan V8-4.2L (ART) (2000)
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High Pressure Sensor / Switch: Service and Repair
A/C Pressure Switch -F129-
Removing and installing
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Remove front bumper
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Disconnect harness connector.
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Remove pressure switch -B-:
Tightening torque: 5 Nm.
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O-Ring-seal -A- (10.8 mm x 1.8 mm).
NOTE:
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With the switch removed bridge terminals 1 and 2 of connector -B- to check cooling performance.
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The refrigerant circuit remains closed, connection with valve.
