32 00 155 KDS wheel alignment check with ride height measurement without vehicle load

IMPORTANT: Do not perform wheel alignment with the vehicle unladen.

If the technical prerequisites for alignment with ride height input are not fulfilled
If the vehicle in question is a damaged vehicle

NOTE:

Read and comply with GENERAL INFORMATION AND DEFINITIONS .
Read and comply with GENERAL CHASSIS DEFINITION .
Update KDS DATA STATES
Check compliance with TEST CONDITIONS , repair vehicle if necessary.

If necessary, prepare vehicle hoist.
Drive vehicle onto vehicle hoist.
NOTE: The front and rear wheels must be positioned centrally on the rotary and sliding plates.

NOTE: Rotary plates may vary from illustration depending on the manufacturer!

Fig 1: Identifying Rotary And Sliding Plates
Courtesy of BMW OF NORTH AMERICA, INC.

NOTE:

Vehicles with active steering:
Start up active steering prior to wheel alignment.

On vehicles with rear axle slip angle control: Service function "Moving HSR actuator to center position" is included in active steering start-up.

Attach pickup/ride height marks to vehicle (observe specifications from the various equipment manufacturers).

IMPORTANT: Use only quick connectors with poly control pins (1).
Due to excessive measuring inaccuracy, other quick-clamping units are not permitted!
Illustration of KDSII pick-up!

Fig 2: Identifying Poly Control Pins

Courtesy of BMW OF NORTH AMERICA, INC.

Enter customer and vehicle data
Identify chassis version and select vehicle
Enter tire inflation pressure and tread depth
Measure VEHICLE RIDE HEIGHT with tape measure (only Beissbarth KDSII wheel alignment equipment)
If the ride height is outside the tolerance range (+40/-20 mm), load or unload vehicle accordingly to adjust the vehicle in this ride-height window
Install brake tensioner.

Fig 3: Locating Brake Tensioner
Courtesy of BMW OF NORTH AMERICA, INC.
Remove locking pins from both rotary and sliding plates.
Perform input measurement in accordance with equipment manufacturer's instructions.
If necessary, adjust front axle and rear axle . See 32 00 620 ADJUSTING REAR AXLE , 32 00... ADDITIONAL WORK FOR CAMBER CORRECTION or 32 00... ADDITIONAL WORK FOR CAMBER CORRECTION
Perform output measurement in accordance with equipment manufacturer's instructions.
Save and print out test record.
Insert locking pins into both rotary and sliding plates
Remove chassis/wheel alignment system

32 00 155 Kinematics Diagnosis System wheel alignment with ride height measurement without loading the vehicle

Overview of Activities

Preprocesses

Preliminary work before wheel alignment
Measuring vehicle ride height
Keyprocesses
Carry out wheel alignment
Postprocesses
Removing the wheel alignment system

Additional Information

Prerequisite

Only BMW approved wheel and tire combinations are installed on the vehicle.
Correct tread depth. The tread depth for each axle may differ from left to right by max. 1-2 mm.
Correct tire pressure (see label on vehicle).
All chassis and suspension components must be technically OK.
Condition of suspension and shock absorbers OK: Visually inspect for breakage, etc.
In vehicles with air suspension, pull fuse of air supply system so that there is no controlling down or up.

safety instructions

NOTE: Do not perform wheel alignment without loading the vehicle:

If the technical prerequisites for measurement with ride height input are not fulfilled.
If the vehicle in question is a damaged vehicle.

Preprocesses

Preliminary work before wheel alignment
- On vehicles with rear axle slip angle control: Run the "Move HSR actuator to center position" service function.
- Drive the motor vehicle onto the axle alignment test stand so the front wheels and rear wheels are positioned in the center of the rotating/sliding plates.
  
  Fig 4: Identifying Rotary And Sliding Plates
  Courtesy of BMW OF NORTH AMERICA, INC.
  
  TECHNICAL INFORMATION
  
  Please observe the regulations of the various equipment manufacturers. Use only quick connectors with poly control pins (1). Due to excessive measuring inaccuracy, other quick-clamping units are not permitted!
- Position pickups/ride height markers on the vehicle.
  
  Fig 5: Identifying Poly Control Pins
  Courtesy of BMW OF NORTH AMERICA, INC.
- Enter customer and vehicle data.
- Identify chassis version and select vehicle.
- Enter tire pressure and tread depth.
- Remove locking pins from both rotating and sliding plates.
- Install brake tensioner.
  
  Fig 6: Locating Brake Tensioner
  Courtesy of BMW OF NORTH AMERICA, INC.
Measuring vehicle ride height
TECHNICAL INFORMATION

If the ride height is outside the tolerance range (+40/-20 mm), load/unload the vehicle correspondingly to adjust the vehicle in this ride height range.
- Determine the actual ride height (A): For this purpose, attach the tape measure centrally on the rim flange (2) and measure towards the wheel arch lower edge (1).
  
  Fig 7: Identifying Vehicle Ride Height
  Courtesy of BMW OF NORTH AMERICA, INC.
Keyprocesses
Carry out wheel alignment
- Perform input alignment in accordance with equipment manufacturer's instructions.
- If necessary, adjust front axle and rear axle.
- Perform output alignment in accordance with equipment manufacturer's instructions.
- Save and print out test record.
Postprocesses
Removing the wheel alignment system
- Insert locking pins into both rotary and sliding plates.
- Remove pickups/ride height markers.
- Remove weights from the motor vehicle.