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Service Auxiliary heater, supplementary heater Edition 01.2014 Service Department. Technical Information Service List of Workshop Manual Repair Groups Repair Group 00 Technical data 82 Auxiliary heating 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. A005A500220 Audi A4 2008 ➤ , Audi A5 Coupé 2008 ➤ , Audi A5 Sportback 2010 ➤ , Audi Auxiliary heater, supplementary heater Edition 01.2014 Contents 00 Technical data 1 1 General notes 1 1.1 Type plates 1 1.2 Notes on operation of auxiliary/supplementary heater on vehicles with diesel engine 2 1.3 Starting conditions for auxiliary/supplementary heater 2 1.4 Notes on auxiliary heater 3 1.5 Operating sequence for auxiliary heater 11 1.6 Activation of heater coolant shut off valve 16 1.7 Rules for cleanliness when working on the auxiliary/supplementary heater and fuel system 17 1.8 Overview of components for auxiliary heater in vehicle 19 2 Safety precautions 21 2.1 Safety precautions when working on vehicles with start/stop system 21 2.2 Safety precautions when working on vehicles with auxiliary/supplementary heater 21 3 Repair instructions 23 3.1 General repair instructions 23 3.2 Contact corrosion 23 82 Auxiliary heating 25 1 Overview of fitting locations auxiliary/supplementary heater 25 1.1 Overview of fitting locations components not located in passenger compartment 25 1.2 Overview of fitting locations components in passenger compartment front 31 1.3 Overview of fitting locations components in passenger compartment rear 37 2 Auxiliary/supplementary heater 40 2.1 General notes 40 2.2 Overview of fitting locations auxiliary/supplementary heater 41 2.3 Exploded view