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Service Direct petrol injection and ignition system 8 cyl. 4.2 ltr. 4 valve , RS 4, RS 5 Engine ID CFS A Edition 07.2013 Service Department. Technical Information Service List of Workshop Manual Repair Groups Repair Group 24 Mixture preparation injection 28 Ignition 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. D3E8024D043 Audi A4 2008 ➤ , Audi A5 Cabriolet 2009 ➤ , Audi A5 Coupé 2008 ➤ Direct petrol injection and ignition system 8 cyl. 4.2 ltr. 4 valve , RS 4, RS 5 Edition 07.2013 Contents 24 Mixture preparation injection 1 1 Safety precautions and rules for cleanliness 1 1.1 General notes on self diagnosis 1 1.2 Safety precautions when working on the fuel system 2 1.3 Safety precautions when working on the injection and ignition system 2 1.4 Safety precautions when working on vehicles with start/stop system 3 1.5 Safety precautions when using testers and measuring instruments during a road test 3 1.6 Rules for cleanliness and instructions for working on fuel system 3 1.7 Reducing pressure in high pressure section of injection system 4 1.8 Checking for leaks in the fuel system 5 1.9 Checking vacuum system 5 2 Injection system 7 2.1 Technical data 7 2.2 Overview of fitting locations injection system 7 2.3 Exploded view vacuum system 14 3 Air cleaner 16 3.1 Exploded view air cleaner housing 16 3.2 Removing and installing engine cover panel 17 3.3 Removing and installing air filter element 18 3.4 Removing and installing air cleaner housing 19 4 Intake manifold 20 4.1 Exploded view intake manifold top section 20 4.2 Removing and installing throttle valve module J338 / J544 21 4.3 Removing and installing i