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32 00 620 Adjusting rear axle (altered procedure)

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IMPORTANT: Altered procedure from previous wheel alignment!

Turning the adjusting screw on the swinging arm or on the wishbone always results in a camber and toe change!

Separate camber or toe adjustment is no longer possible!

Specific camber and toe adjustment is only possible with the aid of the following diagram!

NOTE: Vehicles with ACC only:
Vehicles with rear axle slip angle control only:
  • Carry out adjustment of rear axle only with aid of BMW Diagnosis and Information System
Fig 1: Intermediate Adjustment Value Graph
G10060826Courtesy of BMW OF NORTH AMERICA, INC.

Description using the example value entered at the top of the diagram: 

  1. Read off actual value (1) for toe/camber on wheel/axle alignment analyzer and enter in diagram

    (in example: toe -15', camber -100')

  2. Drag parallel line to "Wishbone" line (C) through entered actual value (1)
  3. Point of intersection (2) on "Swinging arm" line (D) produces toe/camber intermediate adjustment value

    (in example: toe -2', camber -117')

  4. Adjust intermediate adjustment value (2) by turning adjusting screw on wishbone
    • Refer to operation described below "Adjusting on wishbone" 
  5. Adjust setpoint value (3) for toe/camber by turning adjusting screw on swinging arm (toe/camber value moves on line (D))
    • Refer to operation described below "Adjusting on swinging arm" 

Procedure, toe/camber adjustment for ride-height-dependent measurement (unloaded): 

Fig 2: Toe/Camber Adjustment Value Graph
G10060827Courtesy of BMW OF NORTH AMERICA, INC.

Description of adjustment using the diagram (ride-height-dependent measurement/unladen) 

  1. Read off setpoint value (3) at wheel/axle analyzer and enter in diagram (in example: toe +13'/camber -72')
  2. Move lines (D) and (C) in parallel so that the point of intersection of the two lines (D1 and C1) is the entered setpoint value
  3. Read off actual value (1) for toe/camber on wheel/axle alignment analyzer and enter in diagram
  4. Further procedure as when adjusting in design position:
    • Drag parallel line to "Wishbone" line (C 1) through entered actual value
    • Point of intersection on "Swinging arm" line (D1) produces toe/camber intermediate adjustment value
    • Adjust intermediate adjustment value by turning adjusting screw on wishbone
      • Refer to operation described below "Adjusting on wishbone" 
    • Adjust setpoint value (1) for toe/camber by turning adjusting screw on swinging arm (toe/camber value moves on line D1)
      • Refer to operation described below "Adjusting on swinging arm" 

Adjusting on wishbone: 

Replace nut (1) prior to adjustment and join to 5 Nm.

Turn eccentric bolt (2) until intermediate adjustment value is obtained.

Tighten nut (1).

Tightening torque 33 32 8AZ .

Fig 3: Identifying Eccentric Bolt And Nut
G06889620Courtesy of BMW OF NORTH AMERICA, INC.

Adjusting on swinging arm: 

Replace nut (1) prior to adjustment and join to 5 Nm.

Turn eccentric bolt (2) to adjust setpoint value.

Tighten nut (1).

Tightening torque 33 32 2AZ .

Fig 4: Identifying Nut And Eccentric Bolt
G06889621Courtesy of BMW OF NORTH AMERICA, INC.

Diagram dependence toe/camber adjustment (for printing and entering values): 

Fig 5: Camber Adjustment Graph
G10060830Courtesy of BMW OF NORTH AMERICA, INC.
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