54 10 300 Removing and installing/replacing water channel
WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2017 BMW 550i GT xDrive, 2017 BMW 535i GT xDrive, 2017 BMW 535i GT, 2016 BMW 550i GT xDrive, and 2016 BMW 535i GT xDrive. However, it is still accessible from the selected car via links, so may be relevant.
Necessary preliminary work:
The right side is removed in the same way as the left side.
Turn water channel (1) upwards and remove from bearing (2) in direction of arrow.
Installation note:
Make sure spring (3) is in correct position.
Check water channel (1) for spring tension.