audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Fuel Pressure Regulator > < Electrical Checks|Page 4706
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Fuel Injector: Service and Repair

WARNING:

FIRE HAZARD! Disconnect battery ground strap when working on the fuel system. Do not smoke or create any sparks where odor of
fuel vapor is present
.

RELIEVE FUEL SYSTEM PRESSURE

1.

Loosen fuel supply line fitting at rear of engine compartment to relieve any remaining pressure, then re-tighten.

REMOVE FUEL INJECTORS

1.

Disconnect fuel pressure regulator vacuum hose.

2.

Remove fuel rail bolts and pull rail with injectors upward.

3.

Disconnect fuel injector harness connectors as needed

4.

Remove injector retaining clips and injector from fuel rail.

5.

Install in reverse order.

NOTE: Use new O-ring gaskets and lubricate them with light grease prior to installation.

Fuel Pressure Regulator > < Electrical Checks|Page 4706