InfinitiQ50-HEV2014Overview/infiniti/q50-hev/2014/base/
HEV platform

2014 Infiniti Q50-HEV

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2014 Q50-HEV.

Body PASSENGER CARTransmission Automatic (S7)

The 2014 Infiniti Q50‑HEV is a passenger‑car built on Infiniti’s hybrid‑electric vehicle (HEV) platform and equipped with an automatic S7 transmission, delivering an EPA‑rated 20 mpg city, 29 mpg highway, and a combined 23 mpg. Its powertrain relies on 5.2 qt of 5W‑30 API‑specified engine oil, a detail that underscores the model’s engineering focus on maintaining optimal lubrication for hybrid efficiency. While the vehicle’s fuel economy and smooth automatic shift are notable, reliability data show 169 owner complaints for the model year, with steering identified as the most frequent issue and five recalls recorded. Positioned in the early phase of the Q50’s hybrid lineage, the 2014 iteration reflects a mixed reliability record that researchers must weigh against its efficiency advantages.

Model year2020201920182017201620152014

Quick specs

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

Engine oil capacity5.2 qtOEM · verified
Engine oil type5W-30 APIOEM · verified
Lug nut torque80 ft-lbsOEM · verified
EPA fuel economy20/29/23 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 1520865F0E. Note the factory battery is now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known.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 / turnSIGNALOEM · verified

OE service part numbers OEM · verified

Engine oil filter1520865F0E
Engine air filter16546ED000
Spark plug22401EW61C alt 22401JK01D
Battery244101MG0A discontinued
Front wiper blades288904GF1A alt 288904GF0B
Serpentine belt11720EY00A
Thermostat1305031U00 alt 2120031U03
Cabin air filterB72771CA1B alt 27277VX01A

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S7)

Ratings & economy EPA / vPIC

EPA city / highway / combined20 / 29 / 23 mpg
DrivetrainRear-Wheel Drive
Passenger volume100 cu ft
Cargo volume14 cu ft
Recommended fuelPremium Gasoline

Service quick specs OEM factory data

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

This engine holds 5.2 qt of 5W-30 API engine oil, ATF in the differential, DOT 3 brake fluid. Torque lug nuts to 80 ft-lbs, the oil drain plug to 25.0 ft-lbs. The firing order is 1-2-3-4-5-6. 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 Capacity9.7
Automatic Transmission FluidATF
Automatic Transmission Fluid Capacity7.4
Brake FluidDOT 3
Differential Gear Oil75W-90 · GL-5
Differential Gear Oil Capacity3 Pints
Differential Gear OilATF

Engine torques

Engine Flywheel Bolts65 ft-lbs
Engine Flywheel Bolts65 ft-lbs
Exhaust Manifold to Cylinder Head Bolts22 ft-lbs
Exhaust Manifold to Cylinder Head Bolts22 ft-lbs
Engine Oil Pan Drain Plug25.0 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs5 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs5 ft-lbs

Chassis torques

Lug Nuts80 ft-lbs
Transfer Case Fill Plug26.0 ft-lbs
Transfer Case Drain Plug26.0 ft-lbs
Front Wheel Hub92 ft-lbs
Rear Wheel Hub74-77 ft-lbs
Rear Wheel Hub74-77 ft-lbs

Ignition

Cylinder Firing Order1-2-3-4-5-6
Ignition Timing Acceptable Variance5 degrees
Ignition Timing Reference RPMIdle rpm
Ignition Timing10, Not adjustable degrees
Ignition Timing Acceptable Variance2 degrees
Ignition Timing Reference RPMIdle rpm

Battery & A/C

RefrigerantR134a
Refrigerant Capacity1.21 lbs
Oil GroupPAG
Oil Type46
Oil Capacity5.07-5.10 oz
RefrigerantR134a
Refrigerant Capacity1.10 lbs
Standard BCI Group Number24F

Service checks

Pressure Test32 psi
Radiator Cap Pressure Relief18-22 psi
Thermostat Opening Temperature180 °F
Pressure Test32 psi
Radiator Cap Pressure Relief18-22 psi
Thermostat Opening Temperature180 °F
Regulated Fuel System Pressure (Without Vacuum)51.0 psi
Regulated Fuel System Pressure (Without Vacuum)51.0 psi

Brakes

Brake ApplicationWITH FN3 (16 inch) CALIPER PR NOS. 1LH/1ZG
Torque Caliper to Bracket53 ft-lbs / 20 ft-lbs
Torque to Knuckle122 ft-lbs / 116 ft-lbs
Minimum Pad ThicknessRear: 0.079 in
Brake ApplicationWITH FN3 (16 inch) CALIPER PR NOS. 1LH/1ZG
Rotor Max Parallel Variation0.0006 in
Rotor Runout Limit0.0021 in / 0.002 in
Rotor Nominal Thickness From1.181 in / 0.787 in

Multi-step torque procedures OEM · verified

Camshaft Bearing/Carrier Cap Bolts or Studs — tightening sequence 1 stages
1Bolts 7-101.4 ft. lbs
Camshaft Bearing/Carrier Cap Bolts or Studs — tightening sequence 1 stages
11.0 ft lbs., Step 2: 4.0 ft. lbs., Step 3: 8.01 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
121 ft. lbs., Step 2: Back off 360 degrees, Step 3: 18 ft. lbs., Step 4: 9021 ft. lbs
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
133 ft. lbs., step 2: 9033 ft. lbs
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
133 ft. lbs., step 2: 9033 ft. lbs
Cylinder Head — tightening sequence 5 stages

Prep Measure the diameter of each cylinder head bolt at point A and point B. Point A = 11.00 mm from thread end and point B = 48.00 mm from thread end. If either diameter is less than 0.18 mm use new bolts coated with clean engine oil. Tighten all bolts to finger tight then continue on with the following procedure.

172.0 ft. lbs.72 ft. lbs
2Loosen bolts 360 degrees in reverse order360 degrees
326.0-32.0 ft. lbs.26–32 ft. lbs
490 degrees-95 degrees90 degrees
590 degrees-95 degrees90 degrees
Cylinder Head — tightening sequence 5 stages

Prep Measure the diameter of each cylinder head bolt at point A and point B. Point A = 11.00 mm from thread end and point B = 48.00 mm from thread end. If either diameter is less than 0.18 mm use new bolts coated with clean engine oil. Tighten all bolts to finger tight then continue on with the following procedure.

177.0 ft. lbs.77 ft. lbs
2Loosen bolts 360 degrees in reverse order360 degrees
330.0 ft. lbs.30 ft. lbs
495 degrees95 degrees
595 degrees95 degrees
Intake Manifold to Engine Bolts — tightening sequence 1 stages
15 ft. lbs., step 2: 21 ft. lbs., step 3: intake collector: 85 ft. lbs
Intake Manifold to Engine Bolts — tightening sequence 1 stages
15 ft. lbs., step 2: 19 ft. lbs., step 3: intake collector: 85 ft. lbs
Main Bearings — tightening sequence 1 stages
124-28 ft. lbs., Step 2: 90-9524–28 ft. lbs
Main Bearings — tightening sequence 1 stages
126 ft. lbs., Step 2: 9026 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 5,000 mi; spark plugs at 105,000 mi; coolant at 105,000 mi. The big-interval services (at 105,000 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 5,000 miEngine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 10,000 miAccessory Drive Belt (inspect) · Brake Line (inspect) · Brake Linings (inspect) · Brake Pedal Assembly (inspect) · Brake Rotor (inspect) · CV Joint Boot (inspect)
Every 15,000 miCabin Air Filter (replace)
Every 20,000 miBrake Hydraulic System (drain, refill & bleed) · Exhaust System (Complete) (inspect) · Fuel Evaporative Emission Control System Lines (inspect) · Fuel Line (inspect) · Steering Gear Box Assembly (inspect) · Steering Linkage (inspect)
Every 30,000 miBody Latches, Locks & Hinges (lubricate) · Drive Axle Assembly (drain & refill) · Drive Belt (replace) · Engine Air Filter Element (replace) · Exterior Lighting (inspect) · Headlamp (inspect alignment)
At 40,000 miAccessory Drive Belt (inspect)
At 105,000 miEngine Coolant System (drain, flush & refill) · Spark Plugs (replace)
At 180,000 miEngine Coolant System (drain, flush & refill)

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 2014 Infiniti Q50-HEV dominate in one area — the steering, 51 of 169 reports (30%), well ahead of the next concern. That matters, because the steering are also the target of recall 16V-430 on this vehicle — so the single most useful check before buying or servicing one is confirming it was actually performed. 11 of the reports describe a crash and 2 a fire — a small share of the total, but worth weighing against the steering 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.

5
Open recalls
NHTSA campaigns
246
Service bulletins
Manufacturer communications
2
ODI investigations
Office of Defects Investigation
169
Owner complaints
11 involved a crash · 2 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Overall★★★★★
Frontal★★★★
Side★★★★★
Rollover★★★★★

Owner complaints filed with NHTSA, by component

All 169 complaints on record, top 8 components.

Steering51
Air Bags14
Electrical System13
Power Train12
Steering,Electrical System10
Unknown Or Other7
Tires6
Service Brakes4

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 5 campaigns on record for this vehicle.

16V430000Steering:Automated/Adaptive SteeringReported 13/06/2016

Nissan North America, Inc.'s (Nissan) is recalling certain model year 2014-2016 Infiniti Q50 vehicles manufactured December 26, 2012, to December 11, 2015, and Infiniti Q50 Hybrid vehicles manufactured December 10… Remedy: Nissan will notify owners, and dealers will reprogram the Direct Adaptive Steering ECU software, free of charge. The recall began on August 12, 2016. Owners may contact Nissan…

16V244000Air Bags:Sensor:Occupant ClassificationReported 26/04/2016

Nissan North America, Inc. (Nissan) is recalling certain model year 2016-2017 Nissan Maxima, 2013-2016 Nissan Altima, NV200, LEAF, Sentra, and Pathfinder, 2014-2016 Nissan NV200 Taxi, Infiniti QX60, QX60 Hybrid, and Q50… Remedy: Nissan will notify their owners. Chevrolet City Express owners will be notified by General Motors. Dealers will reprogram the Air Bag Control Unit (ACU) and OCS Electronic Control…

Technical service bulletins NHTSA · verified

Showing 5 of 246 bulletins on record with NHTSA.

BulletinDateComponentSummary
ITB09-063C2026-04-13StructureCERTIFICATION LABEL AND VIN PLATE REPLACEMENT SERVICE INFORMATION Because of collision…
ITB12-011R2026-03-30Electrical SystemTELEMATICS SERVICE INFORMATION See ITB19-029 for models built after those listed above…
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…

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 Q50-HEV. 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 2014 Q50-HEV take?

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

Does the 2014 Q50-HEV have open recalls?

NHTSA lists 5 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the Q50-HEV get?

EPA figures are 20 city / 29 highway / 23 combined mpg.