BMW 7 Series: Measuring Vehicle Ride Height

Determine actual ride height (A) _ to do so, attach tape measure to rim flange (2) at bottom middle and measure to wheel arch lower edge (1).

Fig. 28: Identifying Actual Ride Height From Rim Flange To Wheel Arch Lower Edge

MOVING VEHICLE INTO DESIGN POSITION

Necessary preliminary work

• Move VEHICLE INTO NORMAL POSITION
• F01/F02/F07: Version with air spring system:
  • Remove ignition key
  • Pull fuse for air supply unit control unit
• Add/distribute weights in area of spring struts until the vehicle ride height is within the tolerance.

Measure VEHICLE RIDE HEIGHT.

MOVING VEHICLE INTO NORMAL POSITION

Necessary preliminary work

• Check compliance with TEST CONDITIONS, repair vehicle if necessary.
• F01/F02/F04/F07/F11: Version with air suspension system: Carry out RIDE HEIGHT ADJUSTMENT
• Check vehicle interior and luggage compartment (incl. spare wheel well) for load, unload vehicle if necessary
• Introduce DIN load into vehicle.

OVERVIEW OF ACTIVE STEERING

Fig. 29: Overview Of Active Steering

1. Hydraulic steering gear
2. Eco valve (on power steering pump)
3. Control unit
4. Retaining plate, control unit

OVERVIEW OF STEERING

Fig. 30: Overview Of Steering

1. Track rod end /track rod / gaiter
2. Hydraulic steering gear
3. Vane pump
4. Oil container
5. Sleeve
6. Steering shaft
   middle section
7. Steering column
8. Steering shaft
   lower section

OVERVIEW OF STEERING (INTERIOR)

Fig. 31: Overview Of Steering (Interior)

1. Airbag unit
2. Steering wheel
3. Upper steering
   column casing
4. Steering column
5. Lower steering
   column casing

PERFORMING RIM RUNOUT COMPENSATION

NOTE: Rim runout compensation involves electronically recording the lateral runout of the rim and the possible clamping error of the quick-clamping unit for one wheel rotation and compensating the toe and camber for measurement/alignment.

Raise body.

Perform rim runout compensation in accordance with equipment manufacturer's instructions.

Compress/deflect car.

REAR AXLE: WHEEL ALIGNMENT CHECK MUST BE CARRIED OUT AFTER THE FOLLOWING WORK

Fig. 32: Identifying Rear Axle Support, HSR Actuator, Toe Arm, Swinging Arm, Wheel Carrier And Wishbone

Graphic F01/F02.

A WHEEL ALIGNMENT CHECK must be carried out after the following work:

• Release the following screw connection:
  • Swinging arm, front/rear, to rear axle support
  • Swinging arm to integral link/wheel carrier
  • Guide arm to rear axle support/HSR unit
  • Wishbone to rear axle support/wheel carrier
• Replacement of following parts:
  1. Rear axle support
  2. HSR actuator
  3. Toe arm
  4. Swinging arm
  5. Wheel carrier
  6. Integral link
  7. Wishbone

RISK OF INJURY IF OIL COMES INTO CONTACT WITH EYES AND SKIN

Danger of injury!

Contact with eyes or skin may result in injury!

Possible symptoms are:

• Impaired sight
• Irritation of the eyes
• Reddening of the skin
• Rough and cracked skin

Protective measures/rules of conduct

• Wear safety goggles
• Wear oil-resistant protective gloves
• Observe country-specific safety regulations

First aid measures

• Eye contact: Rinse eyes immediately with plenty of water for at least 15 minutes; if available, use an eye-rinsing bottle. If irritation of the eyes persists, consult a doctor.
• Skin contact: Wash off with soap and water immediately. If irritation persists, consult a doctor.

NOTE: Do not use solvents/thinners.

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