Problems with the cooling with air dehumidification function
When you press the 
button, the
indicator lamp in the button flashes three
times or remains off. You can no longer switch
on the cooling with air dehumidification
function.
•► Consult a qualified specialist workshop.
See also:
THERMOTRONIC climate control with three individual climate modes
The second-generation Mercedes CLS can be optionally fitted with an automatic
climate control system which not only allows individual temperatures to be set
for three zones - for the driver, the f ...
Restoring the factory settings
Press the and
buttons
simultaneously for approximately six
seconds until the battery check lamp
flashes twice. ...
Parking the vehicle for a long period
If you leave the vehicle parked for longer than
four weeks, the battery may be damaged by
exhaustive discharge.
Connect a trickle charger.
You can obtain information about
trickle
chargers ...