52 13 ... Retrofitting seat angle adjuster on front seat (normal/manual): Procedure

Necessary preliminary tasks: 

• Remove front seat, refer to 52 14 000 REMOVING AND INSTALLING LEFT OR RIGHT FRONT SEAT (NORMAL/ELECTRIC)  .
• Remove actuating unit, refer to 52 13 015 REMOVING AND INSTALLING/REPLACING CONTROLS ON LEFT/RIGHT FRONT SEAT (NORMAL/MANUAL)  .

Release screws (1).

Fig 1: Removing Connecting Plate

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Release screw (2).

Installation: 

Replace Taptite screws (1 & 2).

Remove connecting plate (3).

Slide O-ring (1) on left and right onto shaft. Make sure O-rings are correctly located between seat angle adjuster and seat pan.

Install seat angle adjuster in seat pan and seat mechanism. Replace Taptite screws (2) and insert.

Fig 2: Installing Seat Angle Adjuster

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Tightening torque, refer to 52 10 16AZ in SEATS - TIGHTENING TORQUES - X5 .

Replace Taptite screws (3) and insert.

Tightening torque, refer to 52 10 17AZ in SEATS - TIGHTENING TORQUES - X5 .

Feed torsion bar spring (1) into seat mechanism.

Engage torsion bar spring (1) in seat mechanism.

Fig 3: Installing Torsion Bar To Seat Mechanism

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Installation: 

Make sure plastic protector (2) is correctly positioned on contact surface between torsion bar spring and seat mechanism (grating noises).

Lift torsion bar spring (1) with special tool 512100 in direction of arrow onto seat angle adjuster.

Fig 4: Seating Torsion Bar Spring Into Seat Adjuster

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