Special tools required:
Necessary preliminary tasks:
IMPORTANT: Use only BMW-approved balance weights.
Remove any fitted balancing weights, stones in tread pattern and larger contaminants.
Check tire pressure, check tire for condition, damage, flat spots (out-of-round caused by e.g. stopping the car with hot tires); if necessary, check wheel and tire for radial and lateral runout.
Use BMW-approved centering elements of relevant balancing machine manufacturers.
Also refer to section on Workshop Equipment.
IMPORTANT: To avoid retooling errors, it will be necessary to fit the wheel on the balancing machine in the same way (e.g. valve facing down) as it is then fitted on the car.
Balance wheel in accordance with operating instructions of relevant balancing machine.
On light-alloy rims with distinctive J-shape rim flange, proceed as follows:
Arrangement of balance weights for light-alloy rims with distinctive J-shape rim flanges.
Adhesive weights must be used on all other light-alloy rims.
Max. imbalance per wheel.
NOTE: When using adhesive weights, proceed as follows:
IMPORTANT: On the E87 with 16" tires, do not use stick-on weights; use only clamp-on weights instead.
CHECKING ONE ROAD WHEEL ON BALANCING MACHINE FOR FACE AND RADIAL RUNOUT (WHEEL REMOVED)
Special tools required:
Necessary preliminary tasks:
Mount wheel in balancing machine.
To avoid retooling errors, fit the wheel on the balancing machine in the same way as it is also fitted on the car (valve position facing down).
Use suitable wheel centering element supplied with corresponding balancing machine.
Also refer to section on Workshop Equipment.
Use special tool 36 1 030 for testing.
Special tool 36 1 030 consists of:
Position special tool 36 1 030 on tire tread.
Turn wheel by hand and measure max. radial tire runout.
NOTE: Measuring device must be vertical to tire tread.
Position special tool 36 1 030 on tire side wall.
Never measure on printed text on tire! If necessary, check disk wheel (rim) for radial and face runout.
CHECKING RIM FOR FACE AND RADIAL RUNOUT
Necessary preliminary tasks:
IMPORTANT: Disk wheels must not be repaired!
Mount disk wheel in balancing machine.
Use suitable wheel centering element supplied with corresponding balancing machine.