37 10... Removing and installing/replacing pressure relief valves

WARNING: This page is about a different car, the 2010 BMW 550i, 2009 BMW 550i, and 2008 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Remove front assembly underside protection . See 51 47 490 REMOVING AND INSTALLING / REPLACING FRONT UNDERBODY PROTECTION .

Pull vent hose (3) out of Y-piece at marked position (see arrow). Vent line can be removed by sliding back the protruding collar on the Y-piece.

IMPORTANT: Do not open banjo bolts (2).

Release pressure relief valve (1) directly from oscillating motor.

Fig 1: Identifying Banjo Bolts And Vent Hose

Courtesy of BMW OF NORTH AMERICA, INC.

Installation: Replace distributor lines (2). Screw pressure relief valve fully into oscillating motor and remove plug. Tightening torque, 37 11 1AZ. See INTEGRATED SUSPENSION SYSTEMS - TIGHTENING TORQUES .

Important: Slide in yellow distributor line in forward direction of travel and black distributor line in rearward direction of travel. Slide distributor lines (2) into pressure relief valve (1) up to second marking (M).

Fig 2: Pushing Distribution Hose Into Vent Valves

Courtesy of BMW OF NORTH AMERICA, INC.