General information and precautions On Audi Allroad cars with petrol engines, the BOSCH-Motronic fuel injection system is installed. Unlike other systems, the Motronic system uses sequential fuel...
Sensors and actuators of the injection system 1.0. Sensors and actuators of the injection system: 1 - 4-pin plug of the main lambda probe 1 (Green colour) 2 - 4-pin plug of the main lambda probe 2 (Brown)...
Intake manifold and related components 2.0. Intake manifold and related components. Vehicles with 2.7L engine: 1 - fuel pressure reducing valve 2 - adsorber purge solenoid valve 3 - exhaust gas...
Intake manifold — removal and installation Withdrawal Vehicles with 2.7L engine 1. Unscrew the bolts (see arrows in illustration) and remove the protective covers A-C of the engine. 2.1. Unscrew the...
Fuel rail and related components 3.0. Fuel rail. Vehicles with 2.7L engine: 1 - connecting fuel line 2 - fuel pressure regulator low pressure hose 3 - clamp 4 - sealing ring. To be replaced...
Fuel rail — removal and installation Attention! The procedure is given on the example of vehicles with a 2.7 liter engine. Attention! The fuel rail, consisting of two parts, functions as a whole,...
Engine control unit — removal and installation Withdrawal 1. Turn off the ignition. Disconnect wire terminal «masses» (-) from the negative pole of the battery. 2. Remove the rubber seal of the waterproof...
Injection system — check Self-checking the fuel injection system is practically impossible, since this requires appropriate instrumentation and a good knowledge of this system. To...