Seat ALHAMBRA Owner's Manual page 166

164 Heating, Ventilation and Air conditioning
Things to note
If the humidity and temperature outside the vehicle are high, condensation
can drip off the evaporator in the cooling system and form a pool underneath
the vehicle. This is normal and does not indicate a leak!
Dust and pollen filter
The dust and pollen filter with its activated charcoal cartridge serves as a
barrier against impurities in the ambient air.
For the climate control system to work with maximum efficiency, the dust and
pollen filter must be replaced at the intervals specified in the Maintenance
Programme.
Air vents
Air vents
Never close the air vents
cooling and ventilation inside the vehicle.
A
fig. 123 completely to ensure heating,
A
If the filter loses efficiency prematurely due to use in areas with very high
levels of air pollution, the filter must be changed more frequently than stated
in the Service Schedule.
Note
The climate control system must be left running for a few minutes to reach
the set temperature in the vehicle interior.
After starting it, any residual humidity in the climate control system could
mist over the windscreen.
The air from the vents flows through the passenger compartment and out
through the outlets below the rear window. Do not cover these outlets with
items of clothing or other objects.
Fig. 123 Air vents in the instrument panel.
Turn the thumbwheel in the required direction to open and close the air
vents.
Change the air direction using the ventilation grille lever.