Cooper Convertible (R57) L4-1.6L (N12) (2009)
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Note:
The measuring accuracy details only apply when using the precision rotating and sliding plates as well as the BMW quick-acting clamps.
7.2 Preparatory work
Before commencing the measurement, preparatory work must be carried out at the measuring area and on the vehicle (see BMW KDS operating
instructions). Preparatory work includes:
- Easy-running rotating and sliding plates
- Aligning the rotating and sliding plates in relation to the track width and wheelbase
- Centering the vehicle on the plates
- Applying the parking brake
- Removing the lock pins on the plates to prevent tension in the chassis under loading
- Checking the rim and tyre size, tread depth, tyre pressure, steering wheel play, wheel bearings and condition of suspension and shock absorbers
- Fastening the measuring equipment to the wheels
- Loading the vehicle according to BMW KDS specifications
- Rock the vehicle firmly with the brakes released to ensure a stable centre position
- Lock the service brake using the brake clamping device
7.3 Initial / final measurement
This measurement can be carried out as a program-guided measurement in the same way as any subsequent adjusting work and the final measurement.
The sequence of the chassis measuring points to be called up is specified and controlled by the system software. The individual steps comprise:
- Driving straight ahead to correctly record the wheel toe and camber values for the rear axle
- Steering routine for recording the castor, kingpin inclination and toe-differential angle
- Recording the wheel toe and camber of the front axle (adjust the steering centre point in advance)
- Steering routine for measuring the maximum steering angle on the left/right
- Checking the overview of measured values with the setpoint and actual comparison of all measured values
7.4 Printing out the data
