Ref. Type Function
9––
10 – –
11 Mini – 20A Horn relay input
12 Mini – 10A AC compressor
feed relay input
13 – –
14 Mini – 7,5A Alarm siren
15 Mini – 10A Washer heated
nozzles relay
input
16 Mini – 10A Enable cooling
fan relay input
and enable
cooling oil pump
relay input
18 – –
19 – –
20 Maxi – 30A Wiper motor
relay output
21 – –
22 – –
23 – –
24 – –
28 Mini – 7,5A Driver Assist
System Module
(DASM) Ref. Type Function
29 Mini – 10A PCM
module-Starter
solenoid relay
coil
30 Mini – 5A ORC - Air bag
module
31 Mini – 5A ABS-ESP module
32 Mini – 5A SSCU, AWD
module (AWD
version only), EPS
and AQS
33 Mini – 10A HDLP LED
Headlights
34 Mini – 15A Primary load to
engine harness
LH side
35 Mini – 15A Primary load to
engine harness
RH side
36 Mini – 30A PCM module
primary load
37 Mini – 15A Engine secondary
load
38 Mini – 15A Lambda sensor Ref. Type Function
39 Mini – 7,5A Flow meters,
tank lackage,
canister, exhaust
by-pass valve
relay coil and air
shutter
48 – –
49 Mini – 10A Pedal brake
switch-TCM
module
50 Mini – 15A +30 PCM module
51 Mini – 30A Fuel pump relay
input
52 Mini – 5A Starter solenoid
signal for PCM
and voltage
stabilizer
53 Mini – 10A AWD module
(AWD version
only)Maintenance and Care
7
351
(Continued)
which are known to the State of
California to cause cancer and birth
defects or other reproductive harm. To
minimize exposure, avoid breathing
exhaust, do not idle the engine except
as necessary, service your vehicle in a
well-ventilated area and wear gloves
or wash your hands frequently when
servicing your vehicle. For more
information go to:
www.P65Warnings.ca.gov/passenger-
vehicle
WARNING!
• Use only refrigerants and
compressor lubricants approved by
the manufacturer for your air
conditioning system. Some
unapproved refrigerants are
flammable and can explode, causing
injuries. Other unapproved
refrigerants or lubricants can cause
the system to fail, requiring costly
repairs.
• The air conditioning system contains
refrigerant under high pressure. To
avoid risk of personal injury or
damage to the system, adding
refrigerant or any repair requiring
lines to be disconnected should be done by an Authorized Maserati
Dealer.
Periodically remove any leaves and
insects
that may build up and obstruct
the inlet of external air in the air
conditioning system through the grille
present underneath the rear part of
the hood.
To access the grille, lift the hood as
described in “Hood Operation” in
section “Before Starting”.
Wheels Maintenance Tires Maintenance CAUTION!
To obtain the best performances and
the longest mileage from the tires,
take the following precautions during
the first 310 mi (500 km):
• do not drive at the vehicle’s
maximum speed;
• drive at low speed on curves;
• avoid sudden steering;
• avoid sudden braking;
• avoid sudden acceleration;
• do not drive at high speeds for too
long.
The tires inflation pressure must
correspond
to the prescribed values
(see the chapter “Tire Inflation
Pressure” in section “Features and
Specifications”) and should be checked
only when the tires have cooled down.
In fact, the pressure increases as the
tire temperature progressively
increases.
Never reduce the pressure if tires are
hot (see “Tires – General Information”
chapter in section “Driving”).Maintenance and Care
7
358
Insufficient tire inflating pressure can
cause tire overheating and possible
internal damage.
CAUTION!
After inspecting or adjusting the tire
pressure, always reinstall the valve
stem cap. This will prevent moisture
and dirt from entering the valve stem,
which could damage it.
Impacts with curbs, holes, and
obstacles
in the road, and prolonged
trips on rough roads can cause tire
damage which may not be visible to
the naked eye.
Check your tires regularly for any signs
of damage (e.g. scratches, cuts, cracks,
bulges, etc.). If sharp objects penetrate
the tires, they can cause structural
damage which is only visible when the
tire is removed.
In any case, any possible damage must
be inspected by an experienced
technician, as it may seriously reduce
the tire life.
Remember that tires deteriorate with
time, even if used little or not at all.
Cracks in the tire tread and sides,
alongside possible bulging, are a sign
of deterioration. WARNING!
• Check the inflating pressure of the
tires when cold, at least every two
weeks and before long trips.
• Have old tires inspected by an
experienced technician, to make
sure they can still be used safely. If
the same tire has been on your
vehicle for 4 or 5 years, have it
inspected anyway by an
experienced technician.
• Never fit tires of uncertain origin.
• “Directional” tires have an arrow on
their side showing the rolling
direction. To keep the best
performance when replacing a tire,
make sure that the rolling direction
corresponds to the one shown by
the arrow.
• During the tire life, the rolling
direction used for the first fitting
should always be observed, also in
case of “nondirectional” tires.
• Check the depth of the tire tread at
regular intervals. The thinner is the
tread, the greater is the risk of
skidding.
• Drive carefully on wet roads to
decrease the risk of aquaplaning. Winter Tires
These
tires are specially designed for
driving on snow and ice and are fitted
to replace the ones supplied with the
vehicle.
The specific features of the winter
tires lead to lower performance under
normal environmental conditions or
on long highway trips, compared to
the standard tires.
Therefore, their use should be limited
to the situations and performance for
which they have been type-approved.
The Authorized Maserati Dealer can
provide all necessary information
about fitting winter tires on the
vehicle.
NOTE:
• We recommend fitting winter tires
on the vehicle at temperatures
below 45 °F (7°C) since the driving
performance of summer tires is
reduced at low temperatures.
Summer tires may be permanently
damaged at extremely low
temperatures.
• Comply with all state and local laws
governing snow tire and tread depth
requirements.Maintenance and Care
7
359
Battery Statement Battery Statement Status of
Charge To avoid problems with ignition and/or
the electrical system in general when
you are driving, the battery charge
status is constantly maintained and
guaranteed by the vehicle's recharge
circuit; the main component of which
is the alternator. This circuit is only
able to supply voltage to the battery
when the vehicle is traveling.
The warning light
on the
instrument cluster, will indicate any
malfunctions in the recharge circuit or
an insufficient battery charge status
(example in figure).
The vehicle contains advanced
electronic systems, such as, for
example, the alarm system and various
electronic control modules, which consume power even when the
ignition switch is in the OFF position
and the vehicle is not being used.
Therefore, it is fundamental that the
battery is properly charged to ensure
that the engine starts properly and
that all the electrical/electronic systems
in the vehicle work efficiently.
Maintaining Battery Charge If you perform short daily trips
(approximately 10 miles/16 km), which
correspond to an annual total of 4000
miles/6000 km, or when the vehicle is
not going to be used for one week or
more, Maserati recommends
connecting the vehicle to a battery
charger, to save you the trouble of
having to recharge the battery. The
battery charger will keep the battery
charged properly and at the correct
voltage levels required by the systems
and devices in the vehicle.
Before using and/or connecting the
battery charger, carefully follow the
instructions provided.
If you do not use a battery charger to
prevent the battery from going dead
when you are not going to use the
vehicle for long periods of time, you
need to check and recharge the
battery at least once every three
weeks. Make this check if you perform short daily trips (approximately 10
miles/16 km) which correspond to an
annual total of 4000 miles/6000 km.
Please note that allowing the battery
to go dead repeatedly can cause
premature wear on the internal cells
and greatly reduce their life, leading
to problems with the ignition system
and other electrical/electronic systems.
The Authorized Maserati Dealer is
available to advise you on how to
recharge your battery correctly and
give you useful information on battery
care and maintenance.
NOTE:
The Authorized Maserati Dealer can
provide you with any information
about the Maserati approved “Battery
Charger and Conditioner”, available in
the “Genuine Accessories” range.
WARNING!
The process of charging or recharging
the battery produces hydrogen, a
dangerous gas that can explode and
cause serious injuries. When charging
or recharging the battery, follow the
recommended precautions at all times:
• always charge or recharge the
battery in a well-ventilatedMaintenance and Care
7
366
Technical Data NOTE:
The technical data, values and specifications in this Owner’s Manual are provided as guidance only. The vehicle specific
data can vary from the information provided, for example, as a result of optional or special equipment ordered with the
vehicle, vehicle loads, and country specific measurement methods.
Engine Data Quattroporte GTS Quattroporte S - Quattroporte
SQ4 (AWD version)
Cylinder number and position 8 - 90° V 6 - 60° V
Number of valves per cylinder 4 4
Bore x stroke 86.5 x 80.8 mm 86.5 x 84.5 mm
Total displacement 3,799 cm 3
2,979 cm 3
Compression ratio 9.5 : 1 9.7 : 1
Maximum power output (EC) 390 kW – 523 HP 316 kW – 424 HP
- corresponding RPM 6,700 RPM 5,750 RPM
Peak torque (EC) 480 ft-lb (650 N-m) 428 ft-lb (580 N-m)
- corresponding RPM 2,000 – 4,000 RPM 1,750 – 4,500 RPM
Overboost torque (EC) 524 ft-lb (710 N-m) 428 ft-lb (580 N-m)
- corresponding RPM 2,000 – 4,000 RPM 1,750 – 4,500 RPMFeatures and Specifications
8
375
Suspension Double-wishbone independent front suspension.
Multilink independent rear suspension.
Skyhook active suspensions with electronic controlled dampening.
Steering Electric Power Steering (EPS) system, axis parallel type.
Turning Circle = 13.5 yd (12.4 m)
No. of steering wheel turns = 1.37 (to the left and right).
Wheels NOTE:
• Maserati recommends Maserati Genuine Tires marked with “MGT” logo specifically designed for its models.
• In order to maintain high performance and safety level, Maserati recommends to use tires equivalent to the original
size.
WARNING!
• The maximum speed reachable with the tires is indicated by the tire manufacturer. Always comply with the regulations
in force in the Country you are driving in.
• Never exceed the maximum speed indicated for the tires: failure to respect the max. speed may damage these tires.
Danger: risk of accident!
Allowed tires size with
standard wheel rims Quattroporte GTS:
All versions Quattroporte S - Quattroporte
SQ4:
Basic version Quattroporte S -
Quattroporte SQ4:
GranLusso - GranSport
Light alloy rims 20” x 8,5J (front)
20” x 10,5J (rear) 19” x 8,5J (front)
19” x 10J (rear) 20” x 8,5J (front)
20” x 10,5J (rear)
- Front tires 245/40 ZR 20 99Y XL 245/45 ZR 19 98Y 245/40 ZR 20 99Y XL
- Rear tires 285/35 ZR 20 100Y 275/40 ZR 19 101Y 285/35 ZR 20 100Y Features and Specifications
8
377
(Continued)
• Always drive with each tire inflated to the recommended cold tire inflation pressure.
• Driving over rough or damaged road surfaces, as well as debris, curbs and other obstacles can cause serious damage to
wheels, tires, and suspension parts. This is more likely to occur with low-profile tires, which provide less cushioning
between the wheel and the road. Be careful to avoid road hazards and reduce your speed, especially if your vehicle is
equipped with low-profile tires.
Features and Specifications
8
382