Audi Workshop Service and Repair Manuals

Fuel Pressure: Specifications

Fuel pressure at idle speed

Vacuum hose connected.............................................................................................................................................................3.2 - 3.8 bar positive pressure
Vacuum hose disconnected........................................................................................................................................................3.8 - 4.2 bar positive pressure

Residual pressure after 10 min.

cold engine............................................................................................................................................................................approx. 2.2 bar positive pressure
warm engine..........................................................................................................................................................................approx. 3.0 bar positive pressure