General characteristics of multi-disc brakes (a variant of disc brakes).

Divided into two main categories:

Wet multi-disc brakes

A number of brake discs are immersed in an oil bath with friction linings that are matched to the fluid, often Hypoid oil.
The oil is often cooled by circulating it through an oil cooler, which causes energy losses, making the brakes heavier to operate.
Another characteristic that can occur with this type of brake is uneven braking until the brakes have reached full power or torque. This depends on the type of wet multi-disc brakes chosen.
One big advantage is that the brakes are extremely well protected from dirt since they are totally enclosed. They could be called "maintenance-free". However there can be problems for the next owner if the vehicle has put in many hours of service.

Dry multi-disc brakes

A number of brake discs that are not surrounded by oil. The friction lining is chosen for air cooling.
The characteristics are more similar to those of conventional disc brakes, but disc brake application is smoother.