Raise the car so that the wheel can rotate freely.
Loosen the wheel bolts until the wheel on the hub is movable.
![](https://www.bmwman.ru/img/ser5/1945.jpg)
Turn the wheel so that the valve -lower arrow- is at the bottom.
Unscrew upper wheel bolt and install lockable wheel bolt (top arrow).
In this position (wheel bolt with lock at the top and valve at the bottom) Tighten the wheel bolts crosswise by hand.
Lower the car.
Tighten wheel bolts crosswise to 100 Nm.
Attention: This type of installation allows you to get a minimum imbalance as a result of installing a heavier bolt with a lock. If during the trip vibrations occur, the wheels will need to be balanced.