InfinitiFX35/45 (VINs from U*4X105001, W*4X210001, T*4X0002004Overview/infiniti/fx35-45-vins-from-u-4x105001-w-4x210001-t-4x000/2004/base/

2004 Infiniti FX35/45 (VINs from U*4X105001, W*4X210001, T*4X000

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2004 FX35/45 (VINs from U*4X105001, W*4X210001, T*4X000.

Body SUVTransmission Automatic (S5)

The 2004 Infiniti FX35 and FX45, built on a unibody SUV platform, came equipped with an automatic transmission (S5) and required 5.0 quarts of 5W-30 API SL engine oil, earning EPA ratings of 15 city, 20 highway, and 17 combined mpg. In terms of long-term dependability, this model year has accumulated 141 total owner complaints, with the most frequent issue reported in the latches, locks, and linkages category, and it has been subject to seven recalls, placing it in a reliability context that researchers should weigh carefully when evaluating ownership risk.

Quick specs

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

Engine oil capacity5.0 qtOEM · verified
Engine oil type5W-30 API SLOEM · verified
Lug nut torque80 ft-lbsOEM · verified
EPA fuel economy15/20/17 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI 35 · 490 CCA battery, OE oil filter 1520865F0E. 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 35 · 490 CCAOEM · verified
Tire sizeP265-50R20OEM · verified
Wheel / rim8-JJ inOEM · verified

OE service part numbers OEM · verified

Engine oil filter1520865F0E
Engine air filter16546V0100
Spark plug224015M015 alt 224015M016
Front wiper blades28890CG00C alt 28890CG01C
Serpentine belt11920AG900 alt 117204P102
Thermostat1305031U00 alt 2120031U1B
Cabin air filter27277VP01A

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S5)

Ratings & economy EPA / vPIC

EPA city / highway / combined15 / 20 / 17 mpg
Drivetrain4-Wheel or All-Wheel Drive
Recommended fuelRegular Gasoline

Service quick specs OEM factory data

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

This engine holds 5.0 qt of 5W-30 API SL engine oil, 80W-90 · GL-5 in the differential, DOT 3 brake fluid. Torque lug nuts to 80 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 Capacity1.4 Pints
Differential Gear Oil80W-90 · GL-5
Differential Gear Oil Capacity3.1 Pints
Engine Oil5W-30 · API

Engine torques

Engine Flywheel Bolts65 ft-lbs
Engine Flywheel Bolts62-68 ft-lbs
Engine Oil Pan Drain Plug28.0 ft-lbs

Chassis torques

Lug Nuts80 ft-lbs
Transfer Case Fill Plug26.0 ft-lbs
Transfer Case Drain Plug26.0 ft-lbs
Front Wheel Hub203 ft-lbs
Rear Wheel Hub177 ft-lbs

Ignition

Cylinder Firing Order1-2-3-4-5-6
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
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

Battery & A/C

RefrigerantR134a
Refrigerant Capacity1.21 lbs
Oil GroupPAG
Oil TypeNISSAN A/C System Oil Type S or equivalent
Oil Capacity6.00 oz
Standard BCI Group Number35
Standard BCI Cranking Performance490 cca
Standard BCI Group Number35

Service checks

Pressure Test23 psi
Radiator Cap Pressure Relief11-14 psi
Thermostat Opening Temperature180 °F
Pressure Test23 psi
Radiator Cap Pressure Relief11-14 psi
Thermostat Opening Temperature176-183 °F
Regulated Fuel System Pressure (Without Vacuum)51.0 psi
Regulated Fuel System Pressure (Without Vacuum)51.0 psi

Brakes

Torque Caliper to Bracket20 ft-lbs / 32 ft-lbs
Torque to Knuckle116 ft-lbs / 62 ft-lbs
Minimum Pad ThicknessFront: 0.079; Rear: 0.079 in
Rotor Max Parallel Variation0.0006 in
Rotor Runout Limit0.0008 in / 0.002 in
Rotor Nominal Thickness From1.102 in / 0.63 in
Rotor Nominal Thickness To1.102 in / 0.63 in
Rotor Minimum Machining1.024 in / 0.551 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
114-15 ft. lbs., Step 2: 90-9514–15 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
179-36 ft. lbs., step 2: +60 degrees-6679–36 ft. lbs
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
165-72 ft. lbs., step 2: 90-9665–72 ft. lbs
Cylinder Head — tightening sequence 4 stages
172.0 ft. lbs.72 ft. lbs
2Loosen all bolts completely in order.
329.0 ft. lbs.29 ft. lbs
490 degrees90 degrees
Cylinder Head — tightening sequence 4 stages
172.0 ft. lbs.72 ft. lbs
2Loosen all bolts completely in order.
332.0 ft. lbs.32 ft. lbs
460 degrees60 degrees
Main Bearings — tightening sequence 1 stages
124-28 ft. lbs., Step 2: 90-9524–28 ft. lbs
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 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 3,750 miEngine Oil Filter (replace)
Every 7,500 miEngine Oil (drain & refill)
Every 15,000 miAccessory Drive Belt (inspect) · Axle Shaft Oil Seal (inspect) · Brake Line (inspect) · Brake Linings (inspect) · CV Joint Boot (inspect) · Cabin Air Filter (replace)
Every 30,000 miEmission Control System (inspect) · Engine Air Filter Element (replace) · Engine Coolant System (drain, flush & refill) · Exhaust System (Complete) (inspect) · Fuel Line (inspect) · Transfer Case Assembly (inspect fluid level)
At 60,000 miAccessory Drive Belt (inspect) · Engine Coolant System (drain, flush & refill)
At 105,000 miEngine Valves (inspect valve lash) · Spark 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.

Owner complaints about the 2004 Infiniti FX35/45 (VINs from U*4X105001, W*4X210001, T*4X000 top in one area — the latches/locks/linkages, 24 of 141 reports (17%), well ahead of the next concern. NHTSA has issued no recalls for this vehicle, so these are owner-reported concerns only. 0 of the reports describe a crash and 1 a fire — a small share of the total, but worth weighing against the latches/locks/linkages pattern above. These are tallies of what owners actually reported to the federal government, not an editorial score — and higher-selling models naturally rack up more reports.

7
Open recalls
NHTSA campaigns
73
Service bulletins
Manufacturer communications
3
ODI investigations
Office of Defects Investigation
141
Owner complaints
0 involved a crash · 1 a fire

Owner complaints filed with NHTSA, by component

All 141 complaints on record, top 8 components.

Latches/Locks/Linkages24
Air Bags20
Structure14
Unknown Or Other10
Electrical System8
Fuel System, Gasoline7
Fuel/Propulsion System6
Service Brakes, Hydraulic5

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 73 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

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Recalls
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Vehicles with shared specs

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Reference guides

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

Frequently asked

How much oil does the 2004 FX35/45 (VINs from U*4X105001, W*4X210001, T*4X000 take?

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

Does the 2004 FX35/45 (VINs from U*4X105001, W*4X210001, T*4X000 have open recalls?

NHTSA lists 7 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the FX35/45 (VINs from U*4X105001, W*4X210001, T*4X000 get?

EPA figures are 15 city / 20 highway / 17 combined mpg.