See also:

Wiper blades
1.  Fold out the wiper arm and hold it. 2.  Press together the locking spring, arrows 1, and fold out the wiper blade, arrow 2. 3.  Take the wiper blade out of the catch mechanism ...

Adjusting
Vehicle Equipment ...

After the ignition is switched off
The roof can still be operated for approx. 1 minute, as long as no door has been opened. ...