InfinitiQ452002Overview/infiniti/q45/2002/base/

2002 Infiniti Q45

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2002 Q45.

Body PASSENGER CARTransmission Automatic (S5)

The 2002 Infiniti Q45 is a full-size passenger car equipped with a 5.6-quart oil capacity and an automatic transmission (S5), delivering EPA fuel economy of 16 city, 23 highway, and 18 combined mpg. Within the model’s reliability history covering 1990 to 2006, the 2002 year recorded 22 total owner complaints—a moderate figure compared to the peak of 47 in 1991 and the low of 2 in 1993—with the most common issue being exterior lighting, and it carries one recall. This places the 2002 Q45 in a middle ground of reported problems, suggesting a typical ownership experience for the era without the extremes of earlier or later years.

Model year200620052004200320022001199919981997

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity5.6 qtOEM · verified
Engine oil type5W-30 / 10W-30 API SMOEM · verified
Lug nut torque72-87 ft-lbsOEM · verified
EPA fuel economy16/23/18 mpgEPA · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI 24F · 585 CCA battery, OE oil filter 152089E01A. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI 24F · 585 CCAOEM · verified
Tire sizeP225-55VR17OEM · verified
Wheel / rim7.5-JJ inOEM · verified

OE service part numbers OEM · verified

Engine oil filter152089E01A
Engine air filter16546AR000
Fuel filter1640041B1A alt 16400Q0805
Spark plug224015M015 alt 224015M014
Front wiper blades288903W40A alt 288901E310
Serpentine belt11950AR00A alt 11720AR000
Thermostat212001LA1A alt 212306N20A
Cabin air filter27277VX00A

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S5)

Dimensions & weight NHTSA vPIC

Overall length199.6 in
Overall width72.4 in
Overall height57.1 in
Wheelbase113 in
Curb weight3801 lb
Track (front / rear)61.8 / 61 in
Weight distribution (front / rear)53/47

Ratings & economy EPA / vPIC

EPA city / highway / combined16 / 23 / 18 mpg
DrivetrainRear-Wheel Drive
Passenger volume102 cu ft
Cargo volume14 cu ft
Recommended fuelPremium Gasoline

Performance & power Independent road tests

0–60 mph, quarter-mile, horsepower and torque from independent road tests.

Independent road tests for the Q45 of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

6.0–6.6 sec0–60 mph (tested)quickest 6.00 sec — 2002 Sedan
YearTrim / engine0–60¼ mileHPDrivetrain
2002Sedan 4.5L V86.00 sec14.50 sec340 hpRWD
2002Sedan 4.5L V86.60 sec15.80 sec340 hpRWD

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 5.6 qt of 5W-30 / 10W-30 API SM engine oil, 75W-90 · 80W-90 · GL-5 in the differential, DOT 3 brake fluid. Torque lug nuts to 72-87 ft-lbs, the oil drain plug to 22.0-28.0 ft-lbs. The firing order is 1-8-7-3-6-5-4-2.

Lubricants & capacities

Brake FluidDOT 3
Differential Gear Oil75W-90 · 80W-90 · GL-5
Differential Gear Oil Capacity2.7 Pints
Engine Oil5W-30 · 10W-30 · API
Engine Oil Capacity5.6 qt
Power Steering FluidATF

Engine torques

Engine Oil Pan Drain Plug22.0-28.0 ft-lbs

Chassis torques

Lug Nuts72-87 ft-lbs
Front Wheel Hub181 ft-lbs
Rear Wheel Hub177 ft-lbs

Ignition

Cylinder Firing Order1-8-7-3-6-5-4-2
Curb Idle Speed (No Load)650 rpm
Curb Idle Speed Variance (No Load)50 rpm
Spark Plug Gap0.043 in
Spark Plug Torque18.0 ft-lbs
Ignition Timing17, Not adjustable degrees
Ignition Timing Acceptable Variance5 degrees
Ignition Timing Reference RPMIdle rpm

Battery & A/C

RefrigerantR134a
Refrigerant Capacity1.32 lbs
Oil GroupPAG
Oil Type46
Oil Capacity7.80 oz
Standard BCI Group Number24F
Standard BCI Cranking Performance585 cca

Service checks

Regulated Fuel System Pressure (Without Vacuum)43.0 psi
Regulated Fuel System Pressure (With Vacuum)34.0 psi
Engine Compression164-191 PSI. 14 maximum variation PSI.
Engine Oil Pressure43-57 psi
Engine Oil Pressure RPM3000 rpm
Intake Valve LashHydraulic in
Exhaust Valve LashHydraulic in

Brakes

Torque Caliper to Bracket102-122 ft-lbs / 25-36 ft-lbs
Torque to Knuckle72-87 ft-lbs / 29-37 ft-lbs
Minimum Pad ThicknessFront: 0.079; Rear: 0.079 in
Rotor Max Parallel Variation0.0006 in
Rotor Runout Limit0.0028 in
Rotor Nominal Thickness From1.1 in / 0.63 in
Rotor Nominal Thickness To1.1 in / 0.63 in
Rotor Minimum Machining1.024 in / 0.55 in

Multi-step torque procedures OEM · verified

Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
165-72 ft. lbs., step 2: 90-9665–72 ft. lbs

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 7,500 mi; spark plugs at 105,000 mi; coolant every 30,000 mi. The big-interval services (every 30,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

Every 7,500 miBattery (inspect electrolyte level) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 15,000 miAccessory Drive Belt (inspect) · Brake System (inspect) · Cabin Air Filter (replace) · Cruise Control System (inspect) · Differential (inspect fluid level) · Transmission Assembly (inspect fluid level)
Every 30,000 miEngine Air Filter Element (replace) · Engine Coolant System (drain, flush & refill) · Fuel Evaporative Emission Control System Lines (inspect) · Fuel Line (inspect) · Steering Linkage (inspect) · Suspension System (inspect)
At 60,000 miAccessory Drive Belt (inspect) · Engine Coolant System (drain, flush & refill)
Every 60,000 miActive Suspension System (drain & refill)
At 105,000 miSpark Plugs (replace)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

The 2002 model year shows a marked deviation from its immediate predecessors, with complaints rising to 22 from just 4 in 2001 and 10 in 2000, while Technical Service Bulletins spiked to 112—more than double the 2001 count and the highest level in the entire 1990–2006 dataset. Across this span, the broader trend sees relatively modest complaint volumes in the early 2000s punctuated by this 2002 surge, whereas recalls remained steady at one and investigations stayed at zero before appearing in subsequent years. Notably, 2002 sits at the peak of the TSB arc, with counts falling back to 66 in 2003 and remaining below the 2002 level thereafter, while investigations emerged in 2003 and persisted through 2005 at a level of two. The top complaint categories for 2002 were Exterior Lighting, Air Bags, and Engine & Engine Cooling, with one crash-related complaint and zero fire complaints recorded, though the data does not specify root causes. Given that 2002 represents the highest service-bulletin volume and a distinct complaint spike within an otherwise quieter early-2000s period, it is not the strongest year in this run to buy; prospective owners should prefer 2001, which posted significantly lower complaints and TSBs, or factor in the elevated service exposure this year carries.

1
Open recalls
NHTSA campaigns
112
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
22
Owner complaints
1 involved a crash · 0 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Rollover★★★★
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 22 complaints on record, top 8 components.

Exterior Lighting4
Air Bags3
Engine & Engine Cooling3
Seats2
Wheels,Unknown Or Other1
Electronic Stability Control (Esc)1
Vehicle Speed Control1
Fuel System, Gasoline,Fuel/Propulsion System1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 1 of 1 campaigns on record for this vehicle.

03V455000Engine And Engine CoolingReported 17/11/2003

ON CERTAIN PASSENGER VEHICLES, THE CIRCUIT BOARD FOR THE CRANK POSITION SENSOR OR CAM POSITION SENSOR MAY HAVE AN IMPROPER SOLDER JOINT DUE TO SOLDER DEFORMATION CAUSED BY HEAT STRESS ACCELERATED BY THE EXISTENCE OF… Remedy: DEALERS WILL REPLACE THE CRANK POSITION SENSORS. CAMSHAFT POSITION SENSOR(S), AND IN SOME CASES, THE VARIABLE TIMING CONTROL SENSOR(S). VEHICLES INVOLVED IN A PREVIOUS RECALL…

Technical service bulletins NHTSA · verified

Showing 5 of 112 bulletins on record with NHTSA.

BulletinDateComponentSummary
ITB09-063C2026-04-13StructureCERTIFICATION LABEL AND VIN PLATE REPLACEMENT SERVICE INFORMATION Because of collision…
ITB13-052E2024-05-20Electrical SystemINTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended. See…
ITB17-009H2024-04-29Visibility/WiperWINDOW GLASS WARRANTY INFORMATION This bulletin has been amended. See AMENDMENT HISTORY…
ITB13-007I2024-04-29Visibility/WiperREMOVING FOREIGN MATERIAL FROM THE WINDOW GLASS This bulletin has been amended. See…
ITB09-039K2024-04-29Visibility/WiperWINDSHIELD CRACKING This bulletin has been amended. See AMENDMENT HISTORY on the last…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific Q45. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Frequently asked

How much oil does the 2002 Q45 take?

5.6 qt of 5W-30 OR 10W-30 API SM, per the factory manual.

Does the 2002 Q45 have open recalls?

NHTSA lists 1 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the Q45 get?

EPA figures are 16 city / 23 highway / 18 combined mpg.