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Service Direct petrol injection and ignition system 8 cyl. 4.2 ltr. 4 valve CAU Engine ID A Edition 04.2009 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. A A005A500420 Audi A5 Coupé 2008 ➤ Direct petrol injection and ignition system 8 cyl. 4.2 ltr. 4 valve Edition 04.2009 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 1 1.3 Rules for cleanliness when working on the injection system 2 1.4 Important Required procedure prior to opening high pressure injection system 3 1.5 Checking vacuum system 4 2 Injection system 6 2.1 Technical data 6 2.2 Fitting locations overview 6 2.3 Air cleaner exploded view 16 2.4 Removing and installing engine cover panel 18 2.5 Removing and installing air filter element 19 2.6 Removing air cleaner bottom section 20 2.7 Removing and installing air mass meter G70 24 2.8 Intake manifold magnesium exploded view 24 2.9 Intake manifold plastic gradual introduction in model year 2009 exploded view 38 2.10 Removing and installing fuel pressure sender G247 55 2.11 Checking fuel pressure and residual pressure up to high pressure pump 56 2.12 High pressure pump exploded view 60 2.13 Removing and installing high pressure pump 63 2.14 Installing high pressure pipes 65 2.15 Lambda probes overview 67 2.16 Removing and installing Lambda probe before catalytic converter G39 and Lambda probe after catalytic converter G130 cylinder bank 1 68