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51 12 742 Replacing One Shock Absorber For Rear Bumper

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Release expansion rivets (1) and remove tray (2).

Installation: 

  1. If necessary, remove luggage compartment wheel arch trim on left.
    Fig 1: Releasing Expansion Rivets
    G03118779Courtesy of BMW OF NORTH AMERICA, INC.

Version with battery in luggage compartment:

Turn rotary clips (1) through 90°.

Feed shelf (2) out of luggage compartment wheel arch trim (3).

Fig 2: View Of Rotary Clips
G03118780Courtesy of BMW OF NORTH AMERICA, INC.

Unclip cover (1) on left and right.

Fig 3: Unclipping Cover On Left And Right
G03118781Courtesy of BMW OF NORTH AMERICA, INC.

Release nuts (1) on inside and remove shock absorber.

Installation: 

Tightening Torque, refer to 51 12 3AZ in BODY EQUIPMENT - TIGHTENING TORQUES - 3-SERIES .

Fig 4: Releasing Nuts
G03118782Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

  1. Mount seal (2) on shock absorber (1).
  2. Fit protective cap (3) to right shock absorber (1).
    Fig 5: View Of Seal On Shock Absorber
    G03118783Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

  1. If necessary, fit a new gasket (1) and a new cover (2) to shock absorber (3).
    Fig 6: Installing Gasket And New Cover
    G03118784Courtesy of BMW OF NORTH AMERICA, INC.

Adjusting Bumper: 

Ideal adjustment:

Distance (A) must be the same all around between the bumper and body cutout.

Distance (A) = 2+0.8/-0.5 mm.

Fig 7: Identifying Bumper Gap Adjustment
G03118785Courtesy of BMW OF NORTH AMERICA, INC.