The concept
The parking brake is primarily intended to prevent the vehicle from rolling while parked; it brakes the rear wheels.

See also:
Components of the
integrated Owner's Manual
The integrated Owner's Manual consists of
three parts, which offer various levels of information
or access possibilities.
Quick Reference Guide
Located in the Quick Reference is important inform ...
Deactivating DSC: DSC OFF
When DSC is deactivated, driving stability is reduced
during acceleration and when driving in
bends.
To increase vehicle stability, activate DSC again
as soon as possible.
Deactivating DSC
...
Maintenance
The battery is maintenance-free, i.e., the electrolyte
will last for the life of the battery.
Your service center will be glad to advise you on
questions regarding the battery. ...
