check engine MASERATI GRANTURISMO CONVERTIBLE 2019 Service Manual

you should perform the following
inspections more frequently than
recommended on the “Scheduled
Service Plan”:
• check front disc brake pad conditionsand wear;
• check cleanliness of hood and trunk locks, cleanliness and lubrication of
linkage;
• visually inspect conditions of: engine, transmission, pipes and hoses
(exhaust - fuel system - brakes) and
rubber elements (trunks - sleeves -
bushes - etc.);
• check battery charge;
• visually inspect condition of the accessory drive belts;
• check and, if necessary, change engine oil and replace oil filter;
• check and, if necessary, replace pollen filter of the A/C system;
• check and, if necessary, replace air cleaner filter.
CAUTION!
All maintenance operations for the
vehicle must be carried out by the
Authorized Maserati Dealer . For
routine and minor maintenance
operations which you can carry out yourself, make sure that you have the
necessary experience and always use
suitable equipment, original
Maserati
spare parts (or equivalent) and the
prescribed fluids. Shall this not be the
case, do not carry any operation on
your own and contact an Authorized
Maserati Dealer.
Onboard Diagnostic System
Your vehicle is equipped with a
sophisticated onboard diagnostic
system. This system monitors the
performance of the emissions, engine,
and automatic transmission control
systems. When these systems are
operating properly, your vehicle will
provide excellent performance and
fuel economy, as well as engine
emissions suited to current
government regulations.
If any of these systems require service,
the system will turn on the
Malfunction Indicator Light on the
instrument cluster display (refer to
“Instrument Cluster” in section
“Dashboard Instruments and
Controls”). The system stores as well
diagnostic codes and other
information to assist your service
technician by performing repairs. Although the vehicle will be driveable
and will not need towing, contact an
Authorized Maserati Dealer
for service
as soon as possible.
CAUTION!
• Prolonged driving with the
MIL
on could cause further damage to
the emissions control system. It could
also affect fuel economy and
drivability. The vehicle must be
serviced before any emissions tests
can be performed.
•Ifthe
MIL is flashing while the
engine is running, severe catalytic
converter damage and power loss
will soon occur. Immediate service at
the Authorized Maserati Dealer is
required.
Spare Parts
Use of genuine parts for normal or
scheduled maintenance and repairs is
highly recommended to ensure
excellent performance.
Damage or failures caused by
non-genuine spare parts used for
maintenance and repairs will not be
covered by the manufacturer's
warranty.
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Maintenance Service
Components
1Engine oil dipstick.
2 Engine oil filler neck.
3 Engine coolant expansion
reservoir cap.
4 Brake fluid reservoir cap. 5
Power steering fluid reservoir
cap.
6 Windshield/headlight washer
fluid reservoir cap.
Level Checks
ENVIRONMENTAL!
• The engine oils and fluids used
contain substances that are
dangerous for the environment. For
replacement you are advised to
contact an Authorized Maserati
Dealer, where all the necessary
equipment is available to dispose of
the used oil and fluids in compliance
with the regulations in force and in
an environment-friendly manner.
• All equipment used for fluids
replacement (gloves, cloths,
containers, etc) must be disposed in
compliance with the regulations in
force.
Engine Coolant Level Check
Your vehicle has been equipped with
an improved engine coolant
(antifreeze) that offers high protection
against corrosion, freezing and allows
extended maintenance intervals. To
prevent reducing extended
maintenance periods, it is important to
use original engine coolant
(antifreeze) when adding coolant
throughout the life of your vehicle.
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When adding engine coolant
(antifreeze) use pure water only, such
as distilled or deionized water when
mixing the water/engine coolant
(antifreeze) solution. The use of
impure water will reduce the amount
of corrosion protection in the engine
cooling system.
• Mix a minimum solution of 50%engine coolant (antifreeze) and
distilled water. Use higher
concentrations (do not exceed 70%)
if temperatures below -35°F (-37°C)
are forecast.
Please note that it is the owner's
responsibility to maintain the proper
level of protection against freezing
according to the temperatures
occurring in the circulation area of the
vehicle.
The coolant tank provides a quick
visual method to determine that the
coolant level is adequate. As long as
the engine operating temperature is
satisfactory, the coolant bottle only
needs to be checked once a month.
With the engine off and cold, the level
of the coolant in the tank on the right
side of the engine compartment
should be between the MIN or MAX
reference notches indicated on the
tank. • When additional engine coolant
(antifreeze) is needed to maintain
the proper level, it should be added
to the coolant bottle after removing
the cap. Do not overfill.
• Once the desired level is reached, reassemble and firmly close cap of
the tank.
• If frequent engine coolant (antifreeze) additions are required,
or if the level in the coolant recovery
tank does not drop when the engine
cools, the cooling system should be
pressure-tested for leaks by a Service
Center
• Keep the front of the radiator and the condenser clean.
WARNING!
• Never add engine coolant
(antifreeze) when the engine is hot. Do not loosen or remove the cap of
the engine coolant bottle to cool a
hot engine. Heat causes pressure to
build up in the cooling system. To
prevent scalding or injury, do not
remove the pressure cap while the
system is hot or under pressure.
• When adding coolant do not use a
pressure cap other than the one
specified for your vehicle. Personal
injury or engine damage may result.
WARNING!
California Proposition 65
Operating, servicing and maintaining
a passenger vehicle or off-road vehicle
can expose you to chemicals including
such as, engine exhaust, carbon
monoxide, phthalates and lead, that
which are know 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:
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241

(Continued)
www.P65Warnings.ca.gov/passenger-
vehicle
Brake Fluid Level Check
Check

the fluid level immediately if
the brake system
red warning
light and the related message turn on
indicating a low level of brake fluid.
• Clean the brake fluid reservoir area around the cap before removing it.
• Add fluid to bring the level up to the “MAX” mark on the side of the
master cylinder reservoir. Use only
manufacturer's recommended brake
fluid (see “Refillings” in section
"Features and Specifications").
• Once the correct level is reached, firmly close the cap.
The brake pads wear could cause the
fluid level to fall. However, low fluid
level may be caused by a leak and a requires accurate checkup of the
braking system.
CAUTION!
The symbol
on the tank cap
identifies the synthetic type of brake
fluid, distinguishing it from the
mineral type. Using mineral fluids
damages the special rubber linings of
the brake system irreparably.
WARNING!
California Proposition 65
Operating, servicing and maintaining
a passenger vehicle or off-road vehicle
can expose you to chemicals including
such as, engine exhaust, carbon
monoxide, phthalates and lead, that
which are know 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!
• To avoid contamination from foreign
materials or moisture, use only new
brake fluid or fluid that has been in
a tightly closed container. Keep the
master cylinder reservoir cap secured
at all times. Brake fluid in an open
container absorbs moisture from the
air resulting in a lower boiling point.
This may cause it to boil
unexpectedly during hard or
prolonged braking, resulting in
sudden brake failure. This could
result in an accident.
• Overfilling the brake fluid reservoir
can result in spilling brake fluid on
hot engine parts, causing the brake
fluid to catch fire. Brake fluid can
also damage painted and vinyl
surfaces, make sure it does not spill
over these surfaces.
• Do not allow petroleum based fluid
to contaminate the brake fluid.
Brake seal components could be
damaged, causing partial or
complete brake failure. This could
result in an accident.
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Adding Windshield/Headlight Washer
Fluid
The reservoir on the left side of the
engine compartment contains the
fluid to wash the windshield and
headlights.
During scheduled services or when the
message of low level of the washer
fluid appears together with the
related telltale add more fluid as
soon as possible.
The fluid reservoir may contain nearly
1.58 US gallons (6 liters) of
windshield/headlight washer fluid.
• Remove the reservoir cap in the engine compartment and lift the
filler neck extension.
• Fill the reservoir with windshield washer solvent (refer to “Refillings”
in section "Features and
Specifications") and operate the system for a few seconds to flush out
the residual water.
• When refilling the washer fluid reservoir, apply some washer fluid to
a cloth or towel and wipe the wiper
blades clean. This will help blade
performance.
To prevent freeze-up of your
windshield washer system in cold
weather, select a solution or mixture
that meets or exceeds the
temperature range of your climate.
This rating information can be found
on most washer fluid containers.
NOTE:
The Authorized Maserati Dealer can
provide you with information about
the “Maserati recommended
Windshield Washer Fluid” with
antifreeze, available in the “Genuine
Accessories” range.
WARNING!
• Commercially available windshield
washer solvents are flammable.
They could ignite and burn you.
Care must be exercised when filling
or when working around the
windshield/headlight washer
system. •
Do not drive with the windshield/
headlight washer reservoir empty:
the action of the washer is essential
for improving visibility when
driving.
WARNING!
California Proposition 65
Operating, servicing and maintaining
a passenger vehicle or off-road vehicle
can expose you to chemicals including
such as, engine exhaust, carbon
monoxide, phthalates and lead, that
which are know 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
Engine Oil Level Check
T
o assure proper lubrication of your
vehicle's engine, the engine oil must
be maintained at the correct level. If
the
warning light illuminates and
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243

the related message of low oil level
displays, or during scheduled services
(see “Scheduled Maintenance Service”
in this section) it is necessary to check
the engine oil level.
The vehicle should be parked on level
ground to improve the accuracy of the
oil level readings.
CAUTION!
• Do not top up with oil with different characteristics than the engine one
(refer to “Refillings” in section
“Features and Specifications”).
• Overfilling or underfilling the oil pan will cause aeration or loss of oil
pressure. This could damage your
engine.
• Do not add any supplemental materials to the engine oil, other
than leak detection dyes. Engine oil
is an engineered product, and its
performance may be impaired by
supplemental additives.
WARNING!
California Proposition 65
Operating, servicing and maintaining
a passenger vehicle or off-road vehicle can expose you to chemicals including
such as, engine exhaust, carbon
monoxide, phthalates and lead, that
which are know 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
• Start the vehicle and warm it up until the
temperature stabilizes.
• Turn off the engine, remove the filler neck cap and wait 5 minutes to allow
the oil to flow into the oil pan. • Remove the dipstick and clean it with
a dry and clean cloth.
• Re-insert the dipstick completely and remove: the oil level should maintain
between the “MIN” and “MAX”
reference ranges (SAFE range).
• If a refilling is necessary, adding 0.4 US gallons (1,5 liters ) of oil when the
level is at the bottom of the SAFE
range will result in the level being at
the top of the SAFE range.
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• Return the cap and dipstick to theirposition and wait for a few minutes
to allow the oil to reach the oil pan.
• Check the level again.
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.
Engine Oil Filter Replacement
The engine oil filter should be
replaced with a new filter at every oil
change.
Contact an Authorized Maserati
Dealer to perform this service.
Automatic Transmission Oil Check
Contact an Authorized Maserati
Dealer for the oil level check.
Power Steering Fluid Level Check
With the vehicle on a level ground
and the engine cold, check the fluid
level of the power steering reservoir.
• To carry out the check, unscrew the cap, clean the dipstick with a dry and
clean cloth.
• Retighten the cap then unscrew it again and check the level: it should
match the “MAX” notch marked on
the dipstick. In hot oil conditions, the level may even exceed the
“MAX” notch.
• If necessary, top up with fluid making sure that it has the same
characteristics as the one already
used in the system (refer to
“Refillings” in section “Features and
Specifications”).
CAUTION!
Make sure that the power steering
fluid does not come in touch with the
engine hot parts as it is flammable.
Engine Air Filter Replacement
Contact an Authorized Maserati
Dealer to have the air filters replaced.
Wiper Maintenance and Blades
Replacement
WARNING!
It is dangerous to operate or service
the wiper blades with the wipers in
an active position (right multifunction
lever in any position different than
“OFF”) and with the key in the
ignition switch in the MAR (ON)
position. The rain sensors may
suddenly activate the wipers.
Windshield Wiper Maintenance
Life
expectancy of wiper blades varies
depending on the geographical area’s
weather conditions where the car is
used and frequency of use. Poor
performance of blades may be present
with chattering, marks, water lines or
wet spots. If any of these conditions
are present, clean the wiper blades or
replace if necessary.
Clean the rubber edges of the wiper
blades and the windshield periodically
with a sponge or soft cloth and a mild
nonabrasive cleaner. This will remove
accumulations of salt or road film.
Operation of the wipers on dry glass
for long periods may cause
deterioration of the wiper blades.
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Always use washer fluid when using
the wipers to remove salt or dirt from
a dry windshield.
Avoid using the wiper blades to
remove frost or ice from the
windshield. Keep the blade rubber out
of contact with petroleum products
such as engine oil, gasoline, etc.
Spray nozzles
If the jet does not work, first check
that there is fluid in the pan (see
paragraph “Level checks” in this
section) then check that the nozzles
are not clogged.
Blades Replacement
• Move the right multifunction leverinto “OFF” position, (see chapter
“Windshield Wipers and Washers” in
section “Understanding the
Vehicle”).
• Lift the end of the arm provided with the blade from the windshield.
• Rotate the blade on the arm in order to access the release latch, shown in
the detail of picture.
• Press the release latch to free the blade.
• Turn and slip off the blade from the arm and replace it. • Return the blade to its original
position on the windshield.
NOTE:
Due to the difficulty of this operation,
we recommend that you contact an
Authorized Maserati Dealer for
replacement of the blades.
Body Lubrication
Locks and all body pivot points,
including such items as seat tracks,
door hinge pivot points and rollers,
trunk lid and hood, sliding doors and
hood hinges, should be lubricated
periodically with a lithium based
grease, to assure quiet, easy operation
and to protect against rust and wear.
Prior to the application of any
lubricant, the parts concerned should
be wiped clean to remove dust and
grit; after lubricating excess oil and grease should be removed. Particular
attention should also be given to hood
latching components to ensure proper
function. When performing other
underhood services, the hood latch,
release mechanism and safety catch
should be cleaned and lubricated. The
coupling pin of the lock on the rear
driver door pillar should be lubricated
twice a year, preferably in the Fall and
Spring. Apply a small amount of high
quality lubricant directly into the lock
cylinder.
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(Continued)
quick coupling from the negative
pole (–) of the battery.
If the battery needs to be removed
from
its compartment, you must first
detach the terminal clamp from
negative pole (–) and then the other
terminal clamp from positive pole (+),
after removing the protective cover.
Battery poles are marked positive (+)
and negative (–) and are identified on
the battery case.
Remove the metal clamp indicated in
the picture and then remove the
battery from the trunk compartment.
To Reconnect the Battery
NOTE:
When the battery cables have been
disconnected and the trunk lid has
been locked, it is necessary to pull the
emergency release cable in order to
re-open it. To access the trunk and
operate the emergency release (see
“Open and Close the Trunk Lid”
chapter in section “Before Starting”).
CAUTION!
• It is essential when replacing the cables on the battery that the
positive cable is precisely attached to
the positive pole (+) and the
negative cable is attached to the
negative pole (–).
• Cable clamps should be tight on the terminal poles and free of corrosion.
After the battery has been
disconnected
and re-connected and
before starting the engine it is
necessary to proceed as follows:
• Unlock and lock the doors using the radio control buttons on the key.
• Unlock the trunk lid with the radio control button on the key and then
lock it manually. • Check the seats are working
correctly: in the event of
malfunction, carry out the
initialization operations described in
the chapter “Front Seats” of the
section “Understanding the Vehicle”.
• Initialize the climate control system by activating the compressor as
described in chapter "Air
Conditioning Controls" of the section
“Dashboard Instruments and
Controls”.
• Turn on the MTC+ and set the date and time (see “MTC+ Setting” in
section “Dashboard Instruments and
Controls”).
• Lift, release and lift again the lever located next the shift lever to
initialize the electric parking brakes.
In this way the
warning light
on the instrument cluster will turn
off.
CAUTION!
• Every time the battery is reconnected, wait at least 30 seconds
with the key in the ignition switch
turned to MAR (ON) position before
starting the engine, in order to allow
the electronic system that manages
the motor-driven throttles to run a
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self-learning cycle. At the same time,
you can run the date and time set up
procedure for the MTC.
• Every time the battery is reconnected the
and
warning lights will flash for
about 10 seconds and then go off.
WARNING!
California Proposition 65
Operating, servicing and maintaining
a passenger vehicle or off-road vehicle
can expose you to chemicals including
such as, engine exhaust, carbon
monoxide, phthalates and lead, that
which are know 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
Useful Advice to Extend
Battery Life
When parking the vehicle, make sure
that the doors, front, rear lids and
flaps are properly closed. All interior
lights should be off.
When the engine is turned off, do not
keep the connected devices switched
on for a long time (such as radio,
hazard warning flashers, fan, etc.).
CAUTION!
If the battery charge remains below
50% for a long period of time, it will
be damaged due to sulfation; its
performance and starting power will
be reduced and it will be more subject
to freezing (this can happen even at
14°F/-10°C).
We recommend you to have the
battery
charge condition checked,
preferably at the beginning of the
cold season, to prevent the electrolyte
from freezing.
This check should be carried out more
frequently if the vehicle is used mainly
for short trips or if it is equipped with
power absorbing devices that remain
permanently on even when the
ignition switch is off. This applies above all if these devices have been
retrofitted ("Aftermarket" services).
If the vehicle is not used for long
periods of time, please see “Vehicle
Stored for Long Periods” in this
section.
Battery Recharge
WARNING!
The process of charging or recharging
the battery produces hydrogen, a
flammable gas that can explode and
cause serious injuries. When charging
or recharging the battery, follow the
recommended precautions at all
times.
• Before using a charger device
always check that this tool is
suitable for the installed battery,
with constant voltage (lower than
14.8 V) and low amperage
(maximum limit 15 A).
• Recharge the battery in a
well-ventilated environment.
• Never charge or recharge a frozen
battery: it can explode due to
hydrogen trapped inside the ice
crystals.
• Ensure that any sparks or open
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