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:
Clearing the memory of the integrated garage door opener on the rear-view mirror
X Turn the SmartKey to position 2 in the ignition lock.
X Press and hold transmitter buttons 2 and 4 for approximately 20 seconds until
indicator lamp 1 flashes rapidly. The memory is cleared.
...
CL-Class in the Market
The S-Class sedan outsells the CL-Class roughly 10 to 1, but that doesn't
make the big coupe a failure. Even though two-doors aren't as popular here as
they are in some foreign markets, Mercedes s ...
Tire pressure monitor warning
messages
If the tire pressure monitor detects a
significant pressure loss on one or more tires,
a warning message is shown in the
multifunction display. A warning tone also
sounds and the tire pressure ...
