S4 V8-4.2L (BHF) (2004)
Fig. 1 Loosening and tightening union nut for fuel supply line
WARNING: Fuel system is under pressure. Before opening system, place rags around the connection point. Then release pressure by carefully
loosening connection.
Loosening:
-
Unscrew fuel hose from connection on fuel rail pipe. To do so, counterhold using an open-end wrench at each hex head - 1- and -3- and unscrew
union nut -2-.
Tightening:
-
Secure fuel hose to connection on fuel rail pipe. To do so, counterhold using an open-end wrench at each hex head -1- and -3- and tighten union
nut -2- to 22 Nm.