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Home >> BMW >> 2018 >> M4 2D Convertible, Automatic DCT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 169 (Seats - Repair) >> Front Seats, normal, manual >> 52 13 070 Removing and installing/replacing seat angle adjuster (normal/manual) on left or right front seat

52 13 070 Removing and installing/replacing seat angle adjuster (normal/manual) on left or right front seat

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2006 BMW 325Ci, 2005 BMW 325xi, 2005 BMW 325i, 2005 BMW 325Ci, and 2004 BMW 325xi. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required: 

For identification of special tools, refer to SEATS - SPECIAL TOOLS - 3-SERIES (M54/E46) .

Necessary preliminary tasks: 

WARNING: Torsion bar spring (1) is subject to tension. Risk of injury.

Lever torsion bar spring (1) with special tool 512 100 in direction of arrow from seat angle adjuster.

Fig 1: Levering Torsion Bar Spring
G03165541Courtesy of BMW OF NORTH AMERICA, INC.

Feed torsion bar spring (1) out of seat mechanism.

Installation: 

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

Release screws (1).

Installation: 

Replace Taptite screws (1).

Tightening torque, 9 Nm.

Release screw (2).

Fig 2: Removing Seat Angle Adjuster
G03165542Courtesy of BMW OF NORTH AMERICA, INC.

Tightening torque, 9 Nm.

Remove seat angle adjuster (3).

Installation: 

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