A4 Quattro Sedan L4-2.0L Turbo (CAEB) (2009)
Fuel Rail: Service and Repair
Fuel Rail Assembly Overview
Fuel Rail Assembly Overview
1 - Fuel Injector
‹› Always replace Teflon seal
‹› Replace O-ring
‹› Note correct installation position
‹› Removing and Installing, refer to => [ Fuel Injectors ] See: Fuel Injector/Service and Repair/Removal and Replacement/Fuel Injectors
2 - Support Ring
3 - Fuel Rail
‹› Removing and Installing, refer to => [ Fuel Rail ] See: Fuel Rail
4 - High Pressure Pump
‹› With Fuel Pressure Regulator Valve (N276)
‹› There is an electric fuel pump located in the tank that supplies the fuel to the mechanical high pressure pump.
‹› When installing the high-pressure pump, make sure that no dirt enters the fuel system.