Window curtain air bags
The window curtain air bags enhance the level of protection for the head, but not chest or arms, of the vehicle occupants on the side of the vehicle on which the impact occurs.
The window curtain air bags are integrated into the side of the roof frame and deploy in the area from the A-pillar to the C-pillar.

Window curtain air bags 1 are deployed:
• on the side on which an impact occurs
• at the start of an accident with a high rate of lateral vehicle deceleration
or acceleration, e.g. in a side impact
• regardless of whether the front-passenger seat is occupied
• independently of seat belt use
• independently of the front air bags
Window curtain air bags 1 will not deploy in impacts with deceleration rates which do not exceed the system's preset deployment thresholds for vehicle deceleration or acceleration. You will then be protected by the fastened seat belt.
See also:
General notes
The Active Driving Assistance package
consists of DISTRONIC PLUS (Y page 169),
Active Blind Spot Assist (Y page 202) and
Active Lane Keeping Assist (Y page 205). ...
Maintenance
The Service and Warranty Booklet describes all the necessary maintenance work
which should be done at regular intervals. Always have the Service and Warranty
Booklet with you when you bring the ve ...
Fogged up or dirty windshield
If the windshield in front of the camera is
fogged up or dirty on the inside or outside, the
Night View Assist Plus display is affected.
WARNING
Please do not forget that your primary
resp ...
