52 25 018 Removing and installing/replacing four-bar lever on left or right rear seat backrest

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Necessary preliminary work:

Remove rear HEAD RESTRAINT
Move backrest as far forwards as possible

NOTE: For purposes of clarity, the following operations are shown in the released state.

Detach cover (1) from Velcro fastener.

Pull cover (1) upwards out of guide from four-bar lever.

Fig 1: Pulling Cover Upwards Out Of Guide From Four-Bar Lever

G06895777

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Make sure cover guide is correctly seated on four-bar lever.

Fig 2: Identifying Cover Guide On Four-Bar Lever

G06895778

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew nuts (1).

Installation note:

Replace nuts (1).

Tightening torque 52 25 4AZ .

Fig 3: Identifying Rear Seat Backrest Nuts

G06895779

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws (1) and remove four-bar lever (2).

Tightening torque 52 25 6AZ .

Remove CONTROL UNIT .

Remove pump for lumbar and massage.

Fig 4: Identifying Screws And Four-Bar Lever

G06895780

Courtesy of BMW OF NORTH AMERICA, INC.