A4 Sedan L4-1.8L Turbo (AEB) (1997)
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Air Door Actuator / Motor: Testing and Inspection
Vacuum System, Servicing
Fresh/Recirculating Air Flap Vacuum Unit, Testing
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Detach hose -C- from two-way valve and connect vacuum pump US 8026, VAG1390 (or equivalent) to hose.
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Produce a vacuum (fresh/recirculating air flap moves against stop in recirculating air mode position and remains in this position).
