See also:

Deactivating/activating DTC Dynamic Traction Control
The system can be deactivated/activated via the TRACTION and SPORT+ programs of the Dynamic Driving Control. ...

Only refill the diesel exhaust fluid yourself in exceptional circumstances
To be able to reach the nearest service center with your vehicle, you may refill the diesel exhaust fluid yourself, making sure to heed the warning notices specified below. Handling diesel ex ...

Applying
The lever automatically engages after being pulled up. ...