Replacing left or right trailing arm (FWD) (X2 sDrive 28i 2018-2023)

Necessary preliminary work: 

• Refer to REMOVING TRAILING ARM COVER .
• Refer to REMOVING TRAILING ARM .

Removal: 

Attention! 

When removing the brake disc: Do not under any circumstances strike friction ring with a hammer or similar! If necessary, carefully tap with a rubber mallet against the brake disc chamber.

Release screw (1) and remove brake disc (2).

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Release screws (1) and remove brake guard plate (2).

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Loosen screws (1).

Remove wheel bearing.

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Slacken nut (1).

Pull out screw.

Remove the trailing arm bearing support (2).

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Installation: 

Installation note: 

The bore holes for the brake guard plate screw connection and shock absorber do not have a thread with the new trailing arm. This is a self-tapping screw connection.

Position the trailing arm bearing support (2) on the new trailing arm.

Parts:  Replace nut (1).

Insert bolt and screw on nut (1).

Adjust the trailing arm bearing support to dimension A in relation to the trailing arm.

• Dimension A = 18 mm (± 3 mm)

Tighten nut (1).

Tightening torque 33 32 4AZ .

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Keep contact surfaces (1) of wheel carrier and wheel bearing (hub) clean and free from oil and grease.

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Align wheel bearing on trailing arm.

Parts:  Replace screws (1).

Tighten down screws (1).

Tightening torque 33 41 1AZ .

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Position brake guard plate (2) on trailing arm.

Parts:  Replace screws (1).

Tighten down screws (1).

Tightening torque 34 21 4AZ .

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Install brake disc (2).

Parts:  Replace screw (1).

Tighten screw (1).

Tightening torque 34 21 1AZ .

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Required follow-up work: 

• Refer to INSTALLING THE TRAILING ARM .
• Refer to INSTALLING TRAILING ARM COVER .
• Carry out wheel alignment procedure. Refer to KINEMATICS DIAGNOSIS SYSTEM WHEEL ALIGNMENT WITH RIDE HEIGHT MEASUREMENT WITHOUT LOADING THE VEHICLE .