BMW X3 Service & Repair Manual: Kds wheel alignment check with ride height measurement without vehicle load

BMW X3 Service & Repair Manual / Suspension / Electronic chassis alignment / 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!

Suspension

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!

Suspension

  • 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.

Suspension

  • 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 .
  • 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

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).

Suspension

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