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.
Table of contents Audi A3 Workshop 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
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