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Service Simos direct petrol injection and ignition system 6 cyl. 3.0 ltr. TFSI 4 valve CAK CCB CMU CGW CGX CHM CTU Engine ID A A A C C B B Edition 09.2013 Service Department. Technical Information Service List of Workshop Manual Repair GroupsList of Workshop Manual Repair GroupsList 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. A005A403720 Audi A4 2008 ➤ , Audi A5 Cabriolet 2009 ➤ , Audi A5 Coupé 2008 ➤ , Audi Simos direct petrol injection and ignition system 6 cyl. 3.0 ltr. TFSI 4 valve Edition 09.2013 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 2 1.3 Rules for cleanliness and instructions for working on fuel system 3 1.4 Reducing pressure in high pressure section of injection system 3 1.5 Checking for leaks in the fuel system 5 1.6 Checking vacuum system 6 2 Injection system 7 2.1 Test data 7 2.2 Overview of fitting locations 7 2.3 Air cleaner exploded view 17 2.4 Removing and installing air filter element 19 2.5 Intake manifold bottom section exploded view 20 2.6 Removing and installing intake manifold bottom section with fuel rail 23 2.7 Removing and installing throttle valve module J338 25 2.8 Removing and installing regulating flap control unit J808 27 2.9 Removing and installing injectors 27 2.10 Checking fuel pressure and residual pressure up to high pressure pump 31 2.11 High pressure pump exploded view 35 2.12 Removing and installing high pressure pipe 37 2.13 Removing and installing high pres