Removing high-pressure fuel line from injector to rail
WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 2015 BMW Alpina B7L, 2015 BMW Alpina B7, 2014 BMW Alpina B7L, 2014 BMW Alpina B7, and 2013 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.
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.
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.
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).
Mark pressure lines.
Mark pressure lines.
Installation: