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

Special tools required: 

• 51 2 100

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.

Fig 2: Installing Seat Angle Adjuster In Seat Pan

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Install seat angle adjuster in seat pan and seat mechanism.

Replace Taptite screws (2) and insert.

Tightening torque 52 10 16AZ. Refer to SEATS - TIGHTENING TORQUES .

Replace Taptite screws (3) and insert.

Tightening torque 52 10 17AZ. Refer to SEATS - TIGHTENING TORQUES .

Feed torsion bar spring (1) into seat mechanism.

Fig 3: Identifying Position Of Plastic Protector

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Engage torsion bar spring (1) in seat mechanism.

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 51 2 100 in direction of arrow onto seat angle adjuster.

Fig 4: Lifting Torsion Bar Spring

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