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

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

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 deviate from the depiction 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 regulation of the different device 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 KDS II pickup

Fig 2: Identifying Poly Control Pins

Courtesy of BMW OF NORTH AMERICA, INC.

If necessary, switch on chassis alignment system.
Enter customer and vehicle data
Identify chassis version and select vehicle. See IDENTIFYING SUSPENSION FROM LABEL ON FRONT AXLE or IDENTIFICATION OF SUSPENSION WITHOUT LABEL .
Enter tire inflation pressure and tread depth
Measure VEHICLE RIDE HEIGHT with tape measure (only Beissbarth KDS II 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: Securing Brake Pedal With Pedal Support
Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Risk of damage!
In order to avoid damaging the front side panel during the "Max. steering angle" drive-in routine, make sure the pickups are removed from the quick-clamping holders/quick-clamping units during output and input alignment. In the process do not detach the connecting cable from the pickups or the rotary plates.

NOTE: After the drive-in routine, reconnect the pickups to the quick-clamping holders/quick-clamping units, align using the bubble levels and secure in place.

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 ADJUSTING TOE-IN/CAMBER ON FRONT AXLE and ADJUSTING 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
If necessary, carry out ALIGNMENT OF ACC SENSOR

Only in event of customer complaint (e.g. poor driving performance):

IMPORTANT: Do not remove screws/bolts (front axle support to engine support or body)!

Slacken all screws/bolts (front axle support to engine support or body) and then retighten to specified torque.

Refer to lowering front axle support. See LOWERING/RAISING FRONT AXLE SUPPORT (UNIVERSAL LIFTER) or LOWERING/RAISING FRONT AXLE SUPPORT (SWZ00-2040) .

IMPORTANT: Only on vehicles with Active Cruise Control:
Because the driving axis is the reference for ACC alignment, it is necessary after an alignment of the rear axle, which alters the driving axis, to check the alignment of the ACC sensor as well!
It is not necessary to check the ACC sensor after only one adjustment of the front axle!