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Infiniti Q45 (FY33). Manual - part 501

MAINTENANCE

SECTION

CONTENTS

PRECAUTIONS AND PREPARATION............................2

Supplemental Restraint System (SRS)

SEAT BELT PRE-TENSIONER

″

...............2

Special Service Tool ....................................................2
Commercial Service Tool.............................................2

GENERAL MAINTENANCE ............................................3
PERIODIC MAINTENANCE ............................................5

Schedule 1...................................................................6
Schedule 2...................................................................7

Fluids and Lubricants ..................................................8
SAE Viscosity Number ................................................8
Anti-freeze Coolant Mixture Ratio ...............................9

ENGINE MAINTENANCE ..............................................10

Checking Drive Belts .................................................10
Changing Engine Coolant.......................................... 11
Checking Fuel Lines ..................................................12
Changing Fuel Filter ..................................................13
Changing Air Cleaner Filter .......................................13
Changing Engine Oil..................................................14
Changing Oil Filter.....................................................14
Changing Spark Plugs...............................................15

Checking EVAP Vapor Purge Lines ..........................16

CHASSIS AND BODY MAINTENANCE .......................17

SERVICE DATA AND SPECIFICATIONS (SDS) ..........23

Engine Maintenance ..................................................23
Chassis and Body Maintenance................................23

IDX

Supplemental Restraint System (SRS) “AIR
BAG” and “SEAT BELT PRE-TENSIONER”

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER” used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
collision. The SRS system composition which is available to INFINITI Q45 is as follows:

For a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the steer-
ing wheel), front passenger air bag module (located on the instrument panel on passenger side), seat belt
pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.

For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of front
seat), satellite sensor, diagnosis sensor unit (one of components of air bags for a frontal collision), wiring
harness, warning lamp (one of components of air bags for a frontal collision).

Information necessary to service the system safely is included in the RS section of this Service Manual.

WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance should be per-
formed by an authorized NISSAN dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by intentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the RS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. Spiral cable and wiring harnesses (except satellite sensor and side air bag mod-
ule) covered with yellow insulation tape either just before the harness connectors or for the com-
plete harness are related to the SRS.

Special Service Tool

The actual shapes of Kent-Moore tools may differ from these of special service tools illustrated here.

Tool number
(Kent-Moore No.)
Tool name

Description

KV10115801
(J38956)
Oil filter wrench

NT375

a: 64.3 mm (2.531 in)

Commercial Service Tool

Tool name
(Kent-Moore No.)

Description

Belt tension gauge
(BT3373-F)

AMA126

Checking drive belt tension

PRECAUTIONS AND PREPARATION

MA-2

General maintenance includes those items which should be checked during the normal day-to-day operation
of the vehicle. They are essential if the vehicle is to continue operating properly. The owners can perform the
checks and inspections themselves or they can have their INFINITI dealers do them.

Item

Reference page

OUTSIDE THE VEHICLE
The maintenance items listed here should be performed from time to time, unless otherwise
specified.

Tires Check the pressure with a gauge periodically when at a service station, including the
spare, and adjust to the specified pressure if necessary. Check carefully for damage, cuts or
excessive wear.

—

Wheel nuts When checking the tires, make sure no nuts are missing, and check for any loose
nuts. Tighten if necessary.

—

Tire rotation Tires should be rotated every 12,000 km (7,500 miles).

MA-19

Wheel alignment and balance If the vehicle should pull to either side while driving on a straight
and level road, or if you detect uneven or abnormal tire wear, there may be a need for wheel
alignment. If the steering wheel or seat vibrates at normal highway speeds, wheel balancing
may be needed.

MA-18

FA-9

RA-7

Windshield wiper blades Check for cracks or wear if they do not wipe properly.

—

Doors and engine hood Check that all doors and the engine hood operate smoothly as well as
the trunk lid. Also make sure that all latches lock securely. Lubricate hinges and latches if neces-
sary. Make sure that the secondary latch keeps the hood from opening when the primary latch is
released.
When driving in areas using road salt or other corrosive materials, check lubrication frequently.

MA-22

INSIDE THE VEHICLE
The maintenance items listed here should be checked on a regular basis, such as when per-
forming periodic maintenance, cleaning the vehicle, etc.

Lights Make sure that the headlights, stop lights, tail lights, turn signal lights, and other lights
are all operating properly and installed securely. Also check headlight aim.

—

Warning lights and buzzers/chimes Make sure that all warning lights and buzzers/chimes are
operating properly.

—

Windshield wiper and washer Check that the wipers and washer operate properly and that the
wipers do not streak.

—

Windshield defroster Check that the air comes out of the defroster outlets properly and in suffi-
cient quantity when operating the heater or air conditioner.

—

Steering wheel Check that it has the specified play. Be sure to check for changes in the steer-
ing condition, such as excessive play, hard steering or strange noises.

Free play: Less than 35 mm (1.38 in)

—

Seats Check seat position controls such as seat adjusters, seatback recliner, etc. to make sure
they operate smoothly and that all latches lock securely in every position. Check that the head
restraints move up and down smoothly and that the locks (if equipped) hold securely in all
latched positions. Check that the latches lock securely for folding-down rear seatbacks.

—

Seat belts Check that all parts of the seat belt system (e.g. buckles, anchors, adjusters and
retractors) operate properly and smoothly, and are installed securely. Check the belt webbing for
cuts, fraying, wear or damage.

MA-22

RS-7

Accelerator pedal Check the pedal for smooth operation and make sure the pedal does not
catch or require uneven effort. Keep the floor mats away from the pedal.

—

Brakes Check that the brake does not pull the vehicle to one side when applied.

—

Brake pedal and booster Check the pedal for smooth operation and make sure it has the
proper distance under it when depressed fully. Check the brake booster function. Be sure to
keep the floor mats away from the pedal.

BR-10
BR-15

Parking brake Check that the pedal has the proper travel and confirm that the vehicle is held
securely on a fairly steep hill with only the parking brake applied.

BR-26

IDX

GENERAL MAINTENANCE

MA-3

Item

Reference page

Automatic transmission “Park” mechanism Check that the brake pedal must be depressed
for the selector lever to be moved from the “P” position. On a fairly steep hill check that the
vehicle is held securely with the selector lever in the “P” position without applying any brakes.

—

UNDER THE HOOD AND VEHICLE
The maintenance items listed here should be checked periodically (e.g. each time you check the
engine oil or refuel).

Windshield washer fluid Check that there is adequate fluid in the tank.

—

Engine coolant level Check the coolant level when the engine is cold.

MA-11

Radiator and hoses Check the front of the radiator and clean off any dirt, insects, leaves, etc.,
that may have accumulated. Make sure the hoses have no cracks, deformation, deterioration or
loose connections.

—

Brake fluid level Make sure that the brake fluid level is between the “MAX” and “MIN” lines on
the reservoir.

MA-19

Battery Check the fluid level in each cell. It should be between the “MAX” and “MIN” lines.

—

Engine drive belts Make sure that no belt is frayed, worn, cracked or oily.

MA-10

Engine oil level Check the level on the dipstick after parking the vehicle on a level spot and
turning off the engine.

MA-14

Power steering fluid level and lines Check the level on the dipstick with the engine off. Check
the lines for improper attachment, leaks, cracks, etc.

MA-21

Automatic transmission fluid level Check the level on the dipstick after putting the selector
lever in “P” with the engine idling.

MA-17

Exhaust system Make sure there are no loose supports, cracks or holes. If the sound of the
exhaust seems unusual or there is a smell of exhaust fumes, immediately locate the trouble and
correct it.

MA-17

Underbody The underbody is frequently exposed to corrosive substances such as those used
on icy roads or to control dust. It is very important to remove these substances, otherwise rust
will form on the floor pan, frame, fuel lines and around the exhaust system. At the end of winter,
the underbody should be thoroughly flushed with plain water, being careful to clean those areas
where mud and dirt can easily accumulate.

—

Fluid leaks Check under the vehicle for fuel, oil, water or other fluid leaks after the vehicle has
been parked for a while. Water dripping from the air conditioner after use is normal. If you
should notice any leaks or gasoline fumes are evident, check for the cause and correct it imme-
diately.

—

GENERAL MAINTENANCE

MA-4

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