37 13 ... Notes On Fitting a New Pipe Or a Screw Connection

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 BMW 750i, 2008 BMW 750Li, 2007 BMW 750i, 2007 BMW 750Li, and 2006 BMW 750i. However, it is still accessible from the selected car via links, so may be relevant.

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 strut/pipe (air spring to air reservoir/pipe connection of air supply unit.

Tightening torque 37 12 3AZ . See 37 12 CONTROL AND SUSPENSION SYSTEMS, REAR

Remove assembly plug (3).

Fig 1: Identifying Toothed Ring, Banjo Bolt & 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 Toothed Ring & Pipe

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!

Pipes are partly integrated in wiring harness.

When faulty pipes are replaced, they must be disconnected at the feed-in to the wiring harness (remaining piece remains incorporated in wiring harness).

Secure new pipes along wiring harness with cable straps.