When the roof rack is loaded, the height of the vehicle's center of gravity increases, and therefore its dynamic qualities and handling significantly change. Improper loading of the trunk can damage the vehicle body. Therefore, when loading the trunk, make sure not to exceed the load capacity of the trunk, as well as the permissible limits for the maximum authorized vehicle weight and axle load.
The perfect trunk for your car (or ski bag), recommended by BMW. At installation of a luggage carrier use the instruction applied to it; The mounting points of the luggage carrier must be as far apart as possible.
The load placed on the roof rack should be evenly distributed over it, as compactly as possible. Heavy items should be put down.
Proper and secure fastening of the stowed load will prevent it from shifting or falling off the vehicle on the move (what poses a danger to those following).
You should move evenly, avoiding sudden acceleration and braking, as well as recklessness when cornering.
A loaded roof rack increases the vehicle's drag. As a result, fuel consumption increases and the load on the roof increases.
If the top rack is not in use, then it is better to remove it.
Obey the traffic rules governing vehicle loading.