Points to observe before use
You can deactivate the flow of fresh air if unpleasant odors are entering the vehicle from outside. The air already inside the vehicle will then be recirculated.
If you switch on air-recirculation mode, the windows can fog up more quickly, in particular at low temperatures. Only use airrecirculation mode briefly to prevent the windows from fogging up.
Activating/deactivating

The operation of air-recirculation mode is the same for all control panels.
■ Turn the SmartKey to position 2 in the ignition lock .
■ To activate: press the
button.
The indicator lamp in the
button
lights
up.
In the event of high pollution levels (3-
zone automatic climate control only) or at
high outside temperatures, airrecirculation
mode is automatically
activated. When air-recirculation mode is
activated automatically, the indicator lamp
in the
button is not lit.
Outside air is added after about 30 minutes.
■ To deactivate: press the
button.
The indicator lamp in the
button
goes
out.
Air-recirculation mode deactivates automatically:
• after approximately five minutes at
outside temperatures below
approximately 41
(5
)
• after approximately five minutes if
cooling with air dehumidification is
deactivated
• after approximately 30 minutes at
outside temperatures above
approximately 41
(5
) if the "Cooling
with air dehumidification" function is
activated
Warranty
Your vehicle is covered under the terms of the
warranties printed in the Service and
Warranty Information booklet.
Your authorized Mercedes-Benz Center will
replace and repair all factory-instal ...
Driving safety systems overview
In this section, you will find information about
the following driving safety systems:
• ABS (Anti-lock Braking System)
• BAS (Brake Assist System)
• Adaptive brake lamps
• ESP® (Electro ...
Diagnostics connection
The diagnostics connection is only intended
for the connection of diagnostic equipment at
a qualified specialist workshop.
WARNING
If you connect equipment to the diagnostics
connection in the ve ...