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Service Direct petrol injection and ignition system 4 cyl. 1.8 ltr. 4 valve turbo with timing chain CAB CAB CDH CDH CCU CAB Engine ID A B A B A D Edition 10.2011 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. A005A400320 Audi A4 2008 ➤ , Audi A5 Cabriolet 2009 ➤ , Audi A5 Coupé 2008 ➤ Direct petrol injection and ignition system 4 cyl. 1.8 ltr. 4 valve turbo with timing chain Edition 10.2011 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 using testers and measuring instruments during a road test 1 1.3 Safety precautions for vehicles with start/stop system 2 1.4 Safety precautions when working on the fuel system 2 1.5 Rules for cleanliness and instructions for working on fuel system 3 1.6 Safety precautions when working on the ignition system 4 1.7 Reducing pressure in high pressure section of injection system 4 1.8 Checking vacuum system 6 2 Injection system 8 2.1 Technical data 8 2.2 Overview of fitting locations 8 3 Air cleaner 18 3.1 Air cleaner exploded view 18 3.2 Removing and installing engine cover panel 19 3.3 Removing and installing air filter element 19 3.4 Removing air cleaner housing 21 4 Intake manifold 24 4.1 Intake manifold exploded view 24 4.2 Fuel rail exploded view 25 4.3 Removing and installing intake manifold with fuel rail 26 4.4 Removing and installing