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December 12, 2018 Service bulletin

Subject: Air conditioning Symptom: Complaint about "knocking noises" from the underbody area.

Porsche technical service bulletin 122-U4G4A-01 for 2018-2019 Porsche 911 and 2017 Porsche 911 Carrera.

Bulletin number
122-U4G4A-01
Component
Equipment: appliance: air conditioner
Summary
Subject: Air conditioning Symptom: Complaint about "knocking noises" from the underbody area.

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