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Service Heating, air conditioning Edition 06.2016 Service Department. Technical Information Service List of Workshop Manual Repair Groups Repair Group 00 Technical data 80 Heating 87 Air conditioning system Technical information should always be available to the foremen and mechanics, because their careful and constant adherence to the instructions is essential to ensure vehicle road worthiness and safety. In addition, the normal basic safety precautions for working on motor vehicles must, as a matter of course, be observed. A005A500120 Audi A4 2008 ➤ , Audi A5 Cabriolet 2009 ➤ , Audi A5 Coupé 2008 ➤ , Audi Heating, air conditioning Edition 06.2016 Contents 00 Technical data 1 1 General notes 1 1.1 Type plates 2 1.2 Notes on odours in vehicles with air conditioner 4 1.3 Seat heating and seat ventilation front 5 1.4 Heated rear window 12 1.5 Notes on control of air conditioner components in passenger compartment 14 1.6 Notes on control of air conditioner components not located in passenger compartment 15 1.7 Notes on refrigerant circuit 19 1.8 Notes on heater and air conditioning unit front 23 1.9 Notes on operating and display unit 26 1.10 Overview of control motors of air conditioner 30 2 Safety precautions 33 2.1 Safety precautions when handling refrigerants 33 2.2 Safety precautions when working on high voltage vehicles 36 2.3 Safety precautions when working on vehicles with start/stop system 43 2.4 Safety precautions when using testers and measuring instruments during a road test 43 2.5 Safety precautions when working on the cooling system 44 3 Repair instructions 45 3.1 Rules for cleanliness 45 3.2 General notes 45 3.3 General repair instructions 46 3.4 Contact corrosion 48 3.5 Checking electrical air conditioner components activated or evaluated via other control units 49 3.6 Checking air conditioner components on vehicles with high voltage system 49 3.7 Checking heatin