Maserati Grandturismo Sport. Service Manual - part 13

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200

Capacities: Quantity and specifications of the products to use

Capacities and recommended products (*)

Parts to be refilled

Quantity

Product specifications 

Fuel tank 

(including low fuel 
sector)

approximately 22.72 US gal

(86 liters)

Premium unleaded gasoline with no less than 91 AKI.

Fuel reserve

approximately 4.75 US gal

(18 liters)

Engine oil:

Entirely synthetic multigrade lubricants SAE 5W/40 that 
meet API SL/CF and ACEA A3, B3, B4 specifications.

Oil type Pennzoil Platinum Euro 5W-40.

- periodical 
replacement

2.37 US gal (9.0 liters)

- top up from the MIN 
to the MAX level

0.4 US gal (1.5 liters) 

WARNING: Do not top up with oil having 
characteristics other than those of the oil already used.

WARNING: Engine oil consumption depends on the 
driving style and on the use of the vehicle.

Windshield/headlight 
washer fluid tank

1.72 US gal (6.5 liters)

Mix of water and detergent fluid, in the proportions 
indicated on the product package.

Detergent fluid: Mix of CUNA NC 956-II surfactants 
and alcohols. Recommended fluid: Wuerth Windshield 
Washer Fluid with antifreeze or Arexons DP1..

WARNING: If the temperature is below -4 °F (–20°C), 
use pure detergent fluid.

(*) We reserve the right to change specifications without prior notification.

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201

Parts to be refilled

Quantity

Product specifications 

Engine cooling system 

3.43 US gal (13 liters)

Mix of water and coolant, in the proportions indicated 
on the product package.

Coolant: Inhibited monoethylene glycol-based 
protective fluid with anti-freezing action: CUNA NC 
956-16.

Type GlycoShell/GlycoShell Long Life.

Hydraulic power 
steering

-

Oil Type: Shell Spirax S1 ATF TASA.

Oil Type ATF Type A - MB 236.2 - ZF ML09/12 
Shell Donax TM

Gearbox oil

2.65 US gal (10.03 liters)

Oil Type Shell M1375.4 DEXTRON III

Differential oil

2.4 lb (1.1 kg) 

Oil Type Shell SPIRAX S 75W140.

Braking system

-

Synthetic fluid: USA FMVSS n. 116 DOT 4, ISO 4925 
Class 4, JIS K 2233 Class 5, AS/NZ 1960 Class 3, SAE 
J1704, CUNA NC 956-01.

Type: Petronas Tutela TOP 5 FF.
IMPORTANT: Please contact the Authorized Maserati 
Dealer for any refill and/or replacement operations.

Air conditioning 
coolant

1.32 lb +/- 0.066 lb  

(600 gr +/- 30 gr)

R134a PAG RL 897

Air conditioning 
compressor oil

0.053 US gal +/- 0.0026 US gal

(200 ml +/- 10 ml)

Oil Type Ucon RL 897

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202

Technical specifications

Engine

Injection – Ignition

The ignition and injection system is 
controlled by a single microprocessor 
ECU. This is designed to enhance 
engine performance, improving 
vehicle handling, and to reduce fuel 
consumption by optimizing engine 
performance with partial loads.

Injection

-  Type Bosch Motronic ME9.

Ignition

- Static 

ignition

-  Ignition sequence:  

1-8-6-2-7-3-4-5

-  Ignition coil: ELDOR
-  Spark plugs: NGK PMR8C-H.

Battery

FIAMM 12V 100 Ah 850A.

Electric alternator

NIPPONDENSO SC2 150A.

General

Vehicle ID code

M145B

Cycle

Otto

Cylinder number and position

8 - 90° V

Number of valves per cylinder

4

Bore and stroke 

mm

94x84.5

Total displacement

cm

3

4691

Compression ratio

11.2±0.2:1

(*) Maximum power (EC)

kW

338

HP

454

Corresponding RPM 

RPM

7000

Maximum torque (EC)

Nm

520

ft.lb

384

Corresponding RPM 

RPM

4750

(*) Values obtained in SPORT mode with 98 R.O.N. unleaded gasoline.

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203

Lubrication system 

The lubrication system is controlled by 
the wet sump system through an oil 
pump and the relative suction screen, 
incorporated in the crankcase.

Cooling system

Engine cooling is obtained by 
means of an anti-freeze mixture 
circulating inside a circuit equipped 
with radiator, centrifugal pump and 
expansion tank.

Transmission

Electro-hydraulically controlled 
gearbox with 6 gears, torque 
converter, lock-up clutch and anti-slip 
function.
TRANSAXLE-type transmission.
Traction system equipped with rear 
self-locking differential.

Gearshifting

Six gears plus reverse.

Gear

Gearbox ratios

Total reduction ratios  
(engine revolutions/
wheel revolutions)

1

st

 gear  

4.171 

15.55

2

nd

 gear 

2.340

8.72

3

rd

 gear 

1.521

5.67

4

th

 gear 

1.143

4.26

5

th

 gear 

0.867

3.23

6

th

 gear

0.691

2.58

Reverse

3.403

12.68

Differential

The ratios are:

Differential reduction ratio

3.54

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204

Brakes

Service and emergency brakes

Self-ventilating disc brakes on the 
four wheels.
Two diagonally opposed and 
independent hydraulic control circuits. 
Vacuum brake servo.
4-channel ABS system with Electronic 
Brake force Distribution (EBD) and 
braking assistance system (HBA) for 
emergency braking.

Electric parking brake

The electric parking brake (EPB) acts 
on the rear wheels.
It is activated manually, by lifting the 
lever found in the central panel of the 
center console (see page 163).

Suspension:

Front and rear

Articulated quadrilateral suspensions.

Suspension with Skyhook 
adjustable damping

This system allows the driver to 
choose two settings for the shock 
absorbers, depending on the road 
surface conditions, speed and 
comfort.

Speed-sensitive steering wheel

Rack and pinion hydraulic steering, 
with pump driven by the drive 
shaft and tank. Articulated steering 
column, with energy absorption and 
adjustable inclination and height. 
Speed-sensitive, it gets more rigid as 
the speed increases.
-  Steering diameter = 11.7 yd  

(10.7 m) 

-  No. of steering wheel turns = 1.5 

(to the left and right)

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205

Wheels

Wheel rims and tires

Wheel rim size

Tire size

Winter tires

front

8.5”J x 20” 

245/35 ZR20

245/35 ZR20

8.5”J x 19” (°)

245/40 ZR19 (°)

245/40 ZR19 (°)

rear

10.5”J x 20”

285/35 ZR20

285/35 ZR20

10.5”J x 19” (°)

285/40 ZR19 (°)

285/40 ZR19 (°)

(°) Rims and tires available on request

 
 
Alternatively, you may use winter tires having the same dimensions as those provided with the vehicle. 

WARNING: While respecting the specified sizes, for the safe operation of the vehicle it is also essential that it is equipped 
with the same brand and type of tires on all wheels.

WARNING: Do not use an inner tube with Tubeless tires.

Snow chains

Maximum radial protrusion permitted over the tire profile: 0.4 in (9 mm).

Rear tire

Snow chains: brand/type

285/35 ZR20

Konig / Supermagic

285/40 ZR19 (°)

Konig / Supermagic

(°) Tires available on request

WARNING: The snow chains must be fitted only where permitted and only on rear tires. For purchasing snow chains, 
please contact your Authorized Maserati Dealer.

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206

Performance (*)

Maximum speed 

mph

km/h

185

298

 
The maximum speed reachable with winter tires is indicated by the tire manufacturer.  
Always comply with the regulations in force in the State you are driving in.

Accelerations at standing start (in seconds)

0-60 mph 
(0-100 km/h)

4.8 sec.

(*) Values obtained in SPORT mode with 98 R.O.N. unleaded gasoline.

Weights

Weights

Unladen vehicle weight (with tanks filled, tools and accessories)

4160 lb (1890 kg)

Weight with full load (4 persons plus luggage)

4820 lb (2190 kg)

873 mm

(34.37 in)

2942 mm 

(115.83 in) 

1066 mm

(41.97 in) 

4881 mm 

(192.17 in)

1353 mm

(53.27 in) 

1586 mm

(62.44 in) 

1590 mm
(62.60 in) 

1915 mm

(75.39 in) 

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207

Dimensions 

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208

Tire pressure

Tire inflation pressure when cold (psi/bar).

Wheel rim size

Tire size

Winter tires

Inflation pressure  
when cold - psi (bar)

front

8.5”J x 20” 

245/35 ZR20

245/35 ZR20

32 (2.2)

8.5”J x 19” (°)

245/40 ZR19 (°)

245/40 ZR19 (°)

32 (2.2)

rear

10.5”J x 20”

285/35 ZR20

285/35 ZR20

32 (2.2)

10.5”J x 19” (°)

285/40 ZR19 (°)

285/40 ZR19 (°)

32 (2.2)

(°) Rims and tires available on request

 
 
Alternatively, you may use winter tires having the same dimensions as those provided with the vehicle. 

 
The maximum speed reachable with winter tires is indicated by the tire manufacturer. Always comply with the 
regulations in force where you are driving. 

 
Never exceed the maximum speed indicated for the winter tires: failure to respect the max. speed may damage 
these tires. Danger: risk of accident!

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209

Maintenance

Maintenance Schedule 

210

Additional checks 

212

Level checks 

213

Air filter 

217

Dust/pollen filter 

217

Battery 217
Electronic control units 

220

Spark plugs 

221

Wheels and tires 

221

Windshield wipers 

223

Air conditioning system 

224

Bodywork 224
Interiors 226
If the vehicle is stored for long periods 

227

Conversion table 

230

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210

Maintenance Schedule

Correct maintenance is the optimal 
way to help maintain vehicle 
performance and safety features, 
ensure respect for the environment 
and low operating costs.

WARNING: Also remember that 
thorough observance of the 
maintenance procedures is essential 
for keeping your vehicle operating 
properly. Not adhering to the 
maintenance schedule can impact 
your vehicle’s warranty.

For this reason, MASERATI has 
provided for a series of checks and 
maintenance operations involving the 
1

st

 service when the vehicle mileage 

reaches 12500 mi (20000 km) or after 
two years of the vehicle life, and 
subsequently every 12500 mi  
(20000 km) or every two years.

After the 12

th

 maintenance 

service 

After the 12

th

 maintenance service, 

Maintenance Schedule services are 
restarted with the same operations 
performed for the 1

st

, 2

nd

, 3

rd

 Services. 

WARNING: The Maintenance 
Schedule services are prescribed by 
the Manufacturer. Failure to have the 
services performed can affect your 
warranty.

Maintenance Schedule Services 
are provided by your Authorized 
Maserati Dealer. In the event that, 
when a service is performed, further 
replacements or repairs are found 
to be necessary in addition to the 
scheduled operations, these can be 
performed only with the specific 
consent of the Customer. 

WARNING: You are advised to notify 
your Authorized Maserati Dealer 
of any minor operating problems, 
without waiting for the next service.

The Maintenance Schedule is 
contained in the “Warranty and 
Maintenance Schedule” book.

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211

When the deadlines for Maintenance 
Schedule services are approaching, a 
message on the display indicates that 
service is due. The deadline may be 
expressed in kilometers/miles or days, 
whichever comes first.
The message is displayed only once, 
upon activating the instrument panel, 
at decreasing intervals expressed in 
mi/km (1100, 990, 60, 30) or in days 
(27, 24, ........ 6, 3), accompanied by a 
specific symbol (wrench):
Once the set limit in kilometers/miles 
or the expiration date is reached, 
every time the instrument panel is 
turned on thereafter, the message 
“Service coupon expired” will be 
displayed.

Selecting the “SERVICE INFO” 
function on the Multi Media System, 
you can view the date when the next 
service is due (see section 6 “On board 
computer (TRIP)” in the Multi Media 
System manual). The number of 
kilometers/miles left before reaching 
the maintenance service deadline is 
always indicated. The days remaining 
before the scheduled date instead, 
are only indicated starting from the 
511

th

 day (approximately 17 months).

WARNING: Every time the battery is 
disconnected, the Multi Media System 
must be set following the instructions 
in the “Multi Media System” manual, 
section 7, “Configuration”. Failure 
to reset the system may cause it to 
malfunction and indicate wrong 
maintenance service intervals.

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212

Additional checks

Every 300 mi (500 km) or before 
long journeys, check and if necessary 
correct: 
-  Engine coolant level
-  Windshield washer fluid level
-  Tire pressure and condition.

WARNING - Engine oil

If the vehicle is used mainly in one of 
the following heavy-duty conditions: 
- dusty 

roads; 

-  short repetitive trips (less than 4-5 

mi / 7-8 km) when the external 
temperature is below zero; 

-  engine running frequently at idle 

speed or without reaching steady 
operating temperatures; 

replace the engine oil more 
frequently than indicated in the 
Maintenance Schedule. 

WARNING - Air filter 

When using the vehicle on dusty 
roads, replace the air filters more 
frequently than indicated in the 
Maintenance Schedule.
Contact your Authorized Maserati 
Dealer if you have any doubts about 
the frequency for engine oil and air 
filter replacements, in the relation to 
the vehicle conditions of use.

WARNING: Vehicle maintenance 
services must be performed by your 
Authorized Maserati Dealer. For 
those routine and minor maintenance 
operations which you can perform 
yourself, always make sure that 
you are using the right equipment, 
genuine Maserati spare parts and 
the recommended fluids; in any case, 
never perform these operations if you 
are unexperienced. 

1

2

3

4

5

8

213

Level checks

1) Engine 

oil

2) Engine 

coolant 

3) Windshield/headlight 

washer 

fluid

4) Brake 

fluid 

5)  Power steering fluid

MAX

MIN

A

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214

Engine oil

The level must be checked with the 
vehicle on a flat surface, following the 
procedure below:
-  start the vehicle and warm it up 

until the temperature stabilizes;

-  turn off the engine, remove the 

filler cap A and wait 5 minutes to 
allow the oil to flow into the sump;

-  measure the level and top up if 

necessary.

The oil level must be between the 
MIN and MAX notches on the dipstick. 
The interval between MIN and MAX 
corresponds to approximately 0.4 US 
gal (1.5 liters) of oil.

WARNING: Do not exceed the MAX 
level!

If the oil level is near or even below 
the MIN reference notch, top up with 
oil pouring it through the filler neck 
plugged by cap A, until reaching 
the MAX reference notch. The oil 
level should never exceed the MAX 
reference notch. 

WARNING: Do not top up with oil 
whose specifications differ from those 
of the oil already used in the engine.

After topping up, the engine oil level 
warning light 

 may not go off 

for some time while the system is 
performing the necessary checks. This 
is normal.
After topping up or replacing the oil, 
check its level once again.

WARNING: The engine oil used 
and the oil filter replaced contain 
substances that are dangerous for the 
environment. For replacing the oil and 

the filters you are advised to contact 
your Authorized Maserati Dealer , 
who has all the necessary equipment 
to dispose of the used oil and filters 
in compliance with the regulations in 
force and in an environment-friendly 
manner.

Used engine oil contains 
chemicals that have caused 
cancer in laboratory animals. 

Always protect your skin by washing 
the affected areas thoroughly with 
soap and water. 

California Proposition 65 
Warning

THIS MOTOR VEHICLE CONTAINS 
CHEMICALS KNOWN TO THE 
STATE OF CALIFORNIA TO CAUSE 
CANCER, BIRTH DEFECTS OR OTHER 
REPRODUCTIVE HARM (see page 7)

D

MAX

MIN

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215

Gearbox oil 

Contact your Authorized Maserati 
Dealer for the oil level check.

WARNING: Do not top up with oil 
having characteristics other than 
those of the oil already used in the 
engine.

WARNING: Waste transmission 
oil contains substances that are 
dangerous for the environment. For 
replacing the oil, you are advised to 
contact your Authorized Maserati 
Dealer, who has the necessary 
equipment to dispose of the used oil 
in compliance with the regulations in 
force and in an environment-friendly 
manner. 

Engine coolant

When the engine is very hot, 
do not remove the tank cap: 
risk of burns!

The fluid level must be checked with 
the engine cold and must be between 
the MIN and MAX reference notches 
visible on the tank.
If the level is low, slowly pour the 
prescribed fluid through the filler 
neck on the tank, until the level is 
close to the MAX reference notch. 

Windshield/headlight washer 
fluid

To top up with fluid, open the cover 
D, pull out the filler neck extension 
and pour in a mixture of water and 
detergent fluid, in the proportions 
indicated on the product packaging.

WARNING: If the temperature 
is below -4 °F (-20°C), use pure 
detergent fluid.

WARNING: Do not drive with the 
windshield washer tank empty: 
proper operation of the windshield 
washer is essential for improving 
visibility.

California Proposition 65 
Warning

THIS MOTOR VEHICLE CONTAINS 
CHEMICALS KNOWN TO THE 
STATE OF CALIFORNIA TO CAUSE 
CANCER, BIRTH DEFECTS OR OTHER 
REPRODUCTIVE HARM (see page 7)