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Home >> BMW >> 2012 >> 760Li >> Repair and Diagnosis >> Engine Performance >> Fuel Delivery >> Fuel System - Repair >> Injection Nozzle And Lines >> 13 53 170 Removing and installing/replacing all pressure lines (N74) >> Removing high-pressure fuel line from injector to rail

Removing high-pressure fuel line from injector to rail

NOTE: The following description applies to all pressure lines.

First release pressure line on rail to reduce existing fuel pressure if necessary. Fuel must not get into the spark plug slot. Then release pressure line on injector.

Fig 1: Identifying Pressure Line And Union Nuts
G08469690Courtesy of BMW OF NORTH AMERICA, INC.

Release union nuts (1).

Disconnect pressure line (2).

Set down pressure lines in order.

Secure injector against twisting with wrench (2).

Release union nut (1).

IMPORTANT: If several pressure lines are removed, ensure that each pressure line is reinstalled in its original location (cylinder).
Fig 2: Securing Injector Against Twisting Using Wrench
G08469691Courtesy of BMW OF NORTH AMERICA, INC.

Mark pressure lines.

Installation: