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Home >> BMW >> 2013 >> 740Lxi >> Repair and Diagnosis >> External Pages >> Different car >> Section 475 (Seats - Repair) >> Front Seat, Comfort >> 52 17 026 Removing and installing/replacing pressure distributor for active seat

52 17 026 Removing and installing/replacing pressure distributor for active seat

WARNING: This page is about a different car, the 2011 BMW 750xi, 2011 BMW 750Lxi, 2010 BMW 750xi, and 2010 BMW 750Lxi. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks: 

Unscrew left and right nuts (1).

Remove carrier plate towards front from seat mechanism.

Fig 1: Removing Carrier Plate Towards Front From Seat Mechanism
G08509212Courtesy of BMW OF NORTH AMERICA, INC.
NOTE: Pressure distributor and pneumatic pockets form a single unit and can only be replaced as a single component.

Unlock plug connection (1) on drive and disconnect.

Unlock plug connection (2) on control unit and disconnect.

Fig 2: Identifying Drive Plug Connection And Control Unit Plug Connection
G08509213Courtesy of BMW OF NORTH AMERICA, INC.

Unclip pressure distributor (1) in marked area.

Installation note: 

Replace faulty clips.

Fig 3: Identifying Pressure Distributor
G08509214Courtesy of BMW OF NORTH AMERICA, INC.

Unclip pneumatic pockets (1) with supports on left and right from flex mat.

Feed pneumatic pockets (1) through flex mat towards bottom.

Fig 4: Identifying Pneumatic Pockets
G08509215Courtesy of BMW OF NORTH AMERICA, INC.

Open quick connector (1).

Feed out hose through fleece mat and backrest frame.

Fig 5: Identifying Quick Connector
G08509216Courtesy of BMW OF NORTH AMERICA, INC.