The complete document of workshop manual for Audi A3 year 2004. Contents of audi a3 workhop manual : Mixture preparation – injection, Servicing injection system, General notes on self-diagnosis, Safety precautions, Rules for cleanliness, Procedure to be followed prior to opening high-pressure injection system – take note of the following: , Technical data, Overview – fitting locations, Exploded view – intake manifold, Exploded view – fuel rail, Exploded view – air cleaner / engine cover panel, Removing and installing engine cover panel with air filter element, Removing and installing intake manifold with fuel rail, Removing and installing injectors, Checking initial fuel pressure (up to high-pressure pump), Checking fuel pressure and residual pressure (up to high-pressure pump), Exploded view – high-pressure fuel pump, Removing and installing high-pressure fuel pump, Wiring and component check with test box V.A.G 1598/42, Renewing Motronic control unit J220, Removing and installing Lambda probe G39 and Lambda probe heater Z19 before catalytic converter, Removing and installing Lambda probe after catalytic converter G130 and Lambda probe 1 heater after catalytic converter Z29, Ignition system, Checking ignition system, Safety precautions, Technical data for ignition system, Ignition system – exploded view of components, Removing and installing ignition coils with output stages.

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