37 13... Notes on fitting a new pipe or a screw connection

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IMPORTANT: Do not kink, twist or crush lines.
Do not disassemble screw connection!

Fitting new screw connection:

Insert complete new screw connection consisting of toothed ring (1), banjo bolt (2) and assembly plug (3) into air spring/pipe connection of air supply unit.

Tightening torque 37 12 3AZ .

Remove assembly plug (3).

Fig 1: Identifying Toothed Ring, Banjo Bolt And Assembly Plug

Courtesy of BMW OF NORTH AMERICA, INC.

Slide new pipe (1) into banjo bolt (2) up to marking.

Check installation position of pipe (1) by pulling back slightly.

NOTE: The toothed ring (3) has engaged correctly when the pipe (1) cannot be pulled back.

Fig 2: Identifying Pipe, Banjo Bolt And Toothed Ring

Courtesy of BMW OF NORTH AMERICA, INC.

Fitting new pipes:

IMPORTANT: To avoid leaks in the air spring system, it is essential to avoid scratches on pipes in particular in the connection area!