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

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

Fitting new screw connection

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

Tightening torque 37 12 1AZ .

Remove mounting plug (3).

Fig 1: Identifying Toothed Washer, Banjo Bolt And Mounting 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 washer (3) has engaged correctly when the pipe (1) can not be pulled back.

Fig 2: Identifying Pipe, Banjo Bolt And Toothed Washer

Courtesy of BMW OF NORTH AMERICA, INC.

Fitting new pipes

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