Audi Workshop Service and Repair Manuals > A2 > Power unit | Motronic Direct Injection and Ignition System (4-Cyl.) | Mixture preparation system, electronic inj.,Gas | Servicing Motronic injection system | Fuel rail pipe with high-pressure injectors

Removing and installing fuel pressure regulator and fuel metering valve > < Dismantling and assembling intake manifold (Part 2)

Motronic Direct Injection and Ignition System (4-Cyl.)

Servicing Motronic injection system

Fuel rail pipe with high-pressure injectors



Bolt ◆ 20 Nm Injector holder ◆ Pay attention to installation position ◆ Replace if damaged Support piece ◆ Make sure that it is correctly fitted to injector and injector holder O-ring ◆ Replace ◆ Apply thin coating of clean engine oil prior to installation



Spacer sleeve High-pressure injector -N30...-N33 Vacuum hose ◆ Between vacuum unit and intake manifold flap air flow control valve -N316 Fuel return line ◆ Blue marking ◆ Secure with spring clip ◆ Ensure firm attachment Fuel-pressure regulating valve -N276 ◆ Fitting location =>Fig. 24-12



Fuel-pressure sender -G247 ◆ Fitting location =>Fig. 24-12 Lower part of intake manifold ◆ Adaption of intake manifold flaps must be performed on replacement of lower part of intake manifold (Self-diagnosis, Basic setting, Measured value block 142) ◆ Vehicle diagnostic, testing and information system VAS 5051 must be used for this purpose. High-pressure fuel line ◆ Between fuel rail pipe and high-pressure fuel pump

Power unit
Motronic Direct Injection and Ignition System (4-Cyl.) / Mixture preparation system, electronic inj.,Gas / Servicing Motronic injection system
Fuel rail pipe with high-pressure injectors

Removing and installing fuel pressure regulator and fuel metering valve > < Dismantling and assembling intake manifold (Part 2)