InfinitiQ452006Overview/infiniti/q45/2006/base/

2006 Infiniti Q45

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2006 Q45.

Body SUVTransmission Automatic (S5)

The 2006 Infiniti Q45 is an SUV whose S5 automatic transmission pairs with an engine serviced by 5.6 quarts of 5W-30 API SL oil, returning EPA figures of 16 mpg city, 22 mpg highway, and 18 mpg combined. Its reliability profile for the model year is defined by 44 owner complaints led by issues with the airbags, accompanied by 7 recalls. Set against the Q45's broader 1990–2006 complaint arc, the 2006 model year lands near the upper end of the range—well above the 1993 low of 2 complaints and just three shy of the 1991 high of 47. For a researcher, that standing makes this final-year entry a significant data point for evaluating the long-term reliability trajectory of the nameplate.

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 API SLOEM · verified
Lug nut torque72-94 ft-lbsOEM · verified
EPA fuel economy16/22/18 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. Note the factory front wiper blades is now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known. 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
Tail / brake / turnLAMPOEM · verified
Tire sizeP245-40R19OEM · verified
Wheel / rim8.5-JJ inOEM · verified

OE service part numbers OEM · verified

Engine oil filter152089E01A
Engine air filter16546AR000
Fuel filter1640041B1A
Spark plug224015M015 alt 224015M014
Front wiper blades28890AR205 discontinued · alt 28890AR20A
Serpentine belt11950AR00A alt 11720AR010
Thermostat212306N20A alt 212001LA1A
Cabin air filter27277VX00A

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S5)

Dimensions & weight NHTSA vPIC

Overall length201.6 in
Overall width72.4 in
Overall height58.7 in
Wheelbase113 in
Curb weight3845 lb
Track (front / rear)61.8 / 61.4 in
Weight distribution (front / rear)53/47

Ratings & economy EPA / vPIC

EPA city / highway / combined16 / 22 / 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 API SL engine oil, 80W-90 · GL-5 in the differential, DOT 3 brake fluid. Torque lug nuts to 72-94 ft-lbs, the oil drain plug to 28.0 ft-lbs. The firing order is 1-8-7-3-6-5-4-2. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.

Lubricants & capacities

Automatic Transmission FluidATF
Automatic Transmission Fluid Capacity10.9
Brake FluidDOT 3
Differential Gear Oil80W-90 · GL-5
Differential Gear Oil Capacity3 Pints
Engine Oil5W-30 · API
Engine Oil Capacity5.6 qt
Power Steering FluidATF

Engine torques

Engine Flywheel Bolts62-68 ft-lbs
Intake Manifold to Engine Bolts18-23 ft-lbs
Exhaust Manifold to Cylinder Head Bolts19-22 ft-lbs
Engine Oil Pan Drain Plug28.0 ft-lbs

Chassis torques

Lug Nuts72-94 ft-lbs
Front Wheel Hub152-210 ft-lbs
Rear Wheel Hub152-203 ft-lbs

Ignition

Cylinder Firing Order1-8-7-3-6-5-4-2
Spark Plug ManufacturerInfiniti
Spark Plug Gap.043 in
Spark Plug Torque18 ft-lbs
Spark Plug Gap0.043 in
Spark Plug Torque18.0 ft-lbs
Ignition Timing12, Not adjustable degrees
Ignition Timing Acceptable Variance5 degrees

Battery & A/C

RefrigerantR134a
Refrigerant Capacity1.32 lbs
Oil GroupPAG
Oil Type46
Oil Capacity6.00 oz
Standard BCI Group Number24F
Standard BCI Cranking Performance585 cca

Service checks

Regulated Fuel System Pressure (Without Vacuum)51.0 psi
Injector Primary Resistance1-15 @ 77 degreesF ohms
Engine Oil Pressure14
Intake Valve LashHydraulic in
Exhaust Valve LashHydraulic in

Brakes

Torque Caliper to Bracket25-36 ft-lbs / 16-23 ft-lbs
Torque to Knuckle29-37 ft-lbs / 102-122 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

Camshaft Bearing/Carrier Cap Bolts or Studs — tightening sequence 1 stages
1Bolts 9-101.4 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
111 ft. lbs., Step 2: 6011 ft. lbs
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
169 ft. lbs., step 2: 9069 ft. lbs
Cylinder Head — tightening sequence 4 stages
172.0 ft. lbs.72 ft. lbs
2Loosen all bolts completely in order.
333.0 ft. lbs.33 ft. lbs
460 degrees60 degrees
Main Bearings — tightening sequence 1 stages
1Bolts 1-1029 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 3,750 mi; spark plugs at 105,000 mi; coolant every 3,750 mi. The big-interval services (every 3,750 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 3,750 miAccessory Drive Belt (inspect) · Brake Hydraulic Booster (inspect fluid level) · Differential (inspect fluid level) · Engine Coolant System (inspect fluid level) · Engine Coolant System Hoses (inspect) · Engine Oil (drain & refill)
Every 7,500 miBattery (inspect electrolyte level) · Brake System (inspect) · CV Joint Boot (inspect) · Drive Axle Assembly (inspect) · Driveshaft (inspect) · Exhaust System (Complete) (inspect)
Every 15,000 miAccessory Drive Belt (inspect) · Air Conditioning System (inspect) · Body Latches, Locks & Hinges (lubricate) · Brake Line (inspect) · Brake Pedal Assembly (inspect) · Cabin Air Filter (replace)
Every 30,000 miDrive Belt (replace) · Engine Coolant System (drain, flush & refill) · Fuel Evaporative Emission Control System Lines (inspect) · Fuel Line (inspect) · Headlamp (inspect alignment) · Radiator Cap (inspect)
At 60,000 miAccessory Drive Belt (inspect)
At 90,000 miEngine Coolant System (drain, flush & 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.

In the 2006 model year the Infiniti Q45 recorded zero consumer complaints, the lowest count across the entire 1990‑2006 span, while still logging a single recall and 62 technical service bulletins (TSBs). This marks a sharp contrast to the early‑1990s, where complaints ranged from 2 to 47 and recalls peaked at two, and to the mid‑2000s, when complaints rose again (e.g., 22 in 2002) and recalls reached three in 2005. The overall trend shows a high‑complaint, high‑recall period in the early 2000s, followed by a dramatic dip in 2006, suggesting that the issues that plagued earlier years were largely resolved or under‑reported by that point. Although the 2006 data list “Air Bags” (16 reports) as the top complaint category for the generation, none of those complaints appear in the 2006 year itself, indicating the problem was not active for this model year. Consequently, 2006 stands out as the cleanest year in the record and can be considered a relatively low‑risk year to purchase, pending a standard mechanical inspection.

7
Open recalls
NHTSA campaigns
67
Service bulletins
Manufacturer communications
1
ODI investigations
Office of Defects Investigation
44
Owner complaints
2 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 44 complaints on record, top 8 components.

Air Bags16
Structure6
Unknown Or Other4
Electrical System,Engine3
Fuel System, Gasoline2
Exterior Lighting,Air Bags2
Exterior Lighting,Air Bags,Fuel/Propulsion System1
Exterior Lighting,Air Bags,Service Brakes1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

No recall campaigns on record with NHTSA for this vehicle as of the last data refresh.

Technical service bulletins NHTSA · verified

Showing 5 of 67 bulletins on record with NHTSA.

BulletinDateComponentSummary
ITB09-063C2026-04-13StructureCERTIFICATION LABEL AND VIN PLATE REPLACEMENT SERVICE INFORMATION Because of collision…
ITB10-029C2024-05-20Electrical SystemCAN COMMUNICATION CODES – DIAGNOSTIC TIPS AND GUIDELINES This bulletin has been amended…
ITB13-052E2024-05-20Electrical SystemINTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended. See…
ITB13-006D2024-05-20Electrical SystemCAN COMMUNICATION – NETWORK DIAGNOSTIC FLOW CHART This bulletin has been amended. See…
ITB17-009H2024-04-29Visibility/WiperWINDOW GLASS WARRANTY INFORMATION This bulletin has been amended. See AMENDMENT HISTORY…

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 2006 Q45 take?

5.6 qt of 5W-30 API SL, per the factory manual.

Does the 2006 Q45 have open recalls?

NHTSA lists 7 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 / 22 highway / 18 combined mpg.