Maserati QUATTROPORTE Owner's Manual page 310

Maintenance and Care
To minimize the possibility of
scratching the lenses and reducing
light output, avoid wiping with a dry
cloth. To remove road dirt, wash with
a mild soap solution followed by
rinsing.
Do not use abrasive cleaning
components, solvents, steel wool or
other aggressive material to clean the
lenses.
Condensation and Fogging on the
Light Clusters
With cold or humid climate, after a
driving rain or after cleaning the car,
the surface of the front and rear
light clusters could fog and/or form
condensate drops on the inside. This
is a natural phenomenon due to the
temperature and humidity difference
between the lens internal and external
surface, which nevertheless does
not indicate a fault and does not
compromise the regular operation of
the lights. The fogging/condensate
disappear when switching on the
lights, starting from the centre of the
diffuser and going gradually to the
8
edges.
Mouldings and Aluminium Trim
• For cleaning mouldings and
aluminium trim, avoid the use of
acidic or alkanline cleaning agents
308
that can destroy the protecting
surface treatment.
• After washing aluminium trim with
warm water, apply the cleaning
agent with a clean tissue or a soft
sponge on the surface. Do not use
any other equipment such as brushes,
steel wool, abrasives or any other
equipment for cleaning.
• After cleaning, please rinse the
aluminium trim with a lot of clear
water.
• While cleaning in the car wash please
make sure that the mouldings and
aluminium trim only gets contact
with soft brushes or textiles.
Engine Compartment
At the end of each winter
season, carefully wash the engine
compartment, remembering to avoid
directing the jet of water for too long
on the electric parts.
To perform this operation, you must
contact the Service Network.
"Car Wash" Mode (if equipped)
To move the vehicle in tunnel washers,
or generally move with engine off, you
can use the following mode.
• Vehicle must be on level ground,
stationary or moving up to 1 km/h
(0.6 mph).
• If enabled, disable the automatic
engagement function of electric
parking brake (see "Parking Brake"
in section "Starting and Driving").
• Shift the gearshift lever to N
(Neutral).
• The brake pedal can be pressed or
not pressed.
• Turn the engine off by pressing the
START/STOP button for 5 seconds.
Through these steps, the driver's door
must be closed. This condition will
persists for about 25 minutes, the shift
lever will switch to P (Park) once time
has expired.
In case of low-battery voltage the shift
lever can be placed in P (Park) before
this time has expired.
NOTE:
It is also appropriate to disable the
"Passive Entry" function from the MIA
System so that the "Pre-Short Drop"
function will not be activated. This can
prevent water from entering in the
passenger compartment during car
washing.