InfinitiQ402015Overview/infiniti/q40/2015/base/

2015 Infiniti Q40

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2015 Q40.

Body PASSENGER CARTransmission Automatic (S7)

The 2015 Infiniti Q40 is a passenger car with an Automatic (S7) transmission and an engine that calls for 4.25 qt of 5W-30 API oil, carrying EPA fuel-economy ratings of 19 mpg city, 27 mpg highway, and 22 mpg combined. Within the Q40's recorded reliability history, the 2015 model year is a low-complaint entry: it has drawn only eight owner complaints, with air bags cited as the top concern, and has not been subject to any recalls. That combination of minimal owner feedback and a clean recall record points to a comparatively uneventful reliability profile for this model year.

Quick specs

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

Engine oil capacity4.25 qtOEM · verified
Engine oil type5W-30 APIOEM · verified
EPA fuel economy19/27/22 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI NS · 580 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 NS · 580 CCAOEM · verified
Tail / brake / turnSIDEOEM · verified
Tire sizeFRONT P225/50R18; REAR P245/45R18OEM · verified
Wheel / rimFRONT 8, REAR 8.5. OPTIONAL TIRE: FRONT 8.5, REAR 9. inOEM · verified

OE service part numbers OEM · verified

Engine oil filter1520865F0E
Engine air filter16546JK20A
Spark plug22401JK01D
Front wiper blades28890JK66A alt 28890JK65C
Serpentine belt11720EY00A
Thermostat1305031U00 alt 2120031U03
Cabin air filter27277VX01A

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S7)

Ratings & economy EPA / vPIC

EPA city / highway / combined19 / 27 / 22 mpg
DrivetrainRear-Wheel Drive
Passenger volume99 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 4.25 qt of 5W-30 API engine oil, GL-5 · 80W-90 · API in the differential, DOT 3 brake fluid. Torque the oil drain plug to 29.0 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 Capacity9.75
Brake FluidDOT 3
Differential Gear OilAPI · GL-5 · Synthetic · SAE 75W
Differential Gear Oil Capacity2.5 qt
Differential Gear OilGL-5 · 80W-90 · API
Engine CoolantUse Nissan long life coolant/antifreeze
Engine Coolant Capacity9.0

Engine torques

Exhaust Manifold to Cylinder Head Bolts22
Engine Oil Pan Drain Plug29.0 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs61.0 inch lbs. ft-lbs

Chassis torques

Rear Wheel Hub74-77 ft-lbs
Front Wheel Hub92 ft-lbs
Rear Wheel Hub74-77 ft-lbs

Ignition

Cylinder Firing Order1-2-3-4-5-6
Spark Plug ManufacturerInfiniti
Spark Plug Gap.043 in
Spark Plug Torque14 ft-lbs
Ignition Timing10 degrees
Ignition Timing Acceptable Variance2 degrees

Battery & A/C

Standard BCI Cranking Performance580 cca

Service checks

Regulated Fuel System Pressure (Without Vacuum)51 @ idle psi
Engine Compression242-341 PSI. 14 maximum variation PSI.
Engine Compression242-341 psi / max variation 14 psi
Intake Valve Lash0.010-0.013 in
Exhaust Valve Lash0.011-0.015 in

Brakes

Brake Caliper Bolt to Carrier TorqueFront: 20; Rear: 32 /; Front: 20; Rear: 32
Brake Caliper Carrier to Hub Bolt TorqueFront: 90; Rear: 63 /; Front: 91; Rear: 62
Minimum Pad ThicknessFront: 0.079; Rear: 0.079 in
Vented Rotor Minimum Thickness after RefinishFront: 1.024; Rear: .551
Variation from Parallelism Thickness Variation.0006
Maximum Rotor RunoutFront: .0014 with; Rear: .0022 with
Maximum Drum DiameterFront: NA; Rear: NS

Multi-step torque procedures OEM · verified

Camshaft Bearing/Carrier Cap Bolts or Studs — tightening sequence 1 stages
148.0, Step 3: 96.0 all steps are in INCH LBS.
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
121.0 ft. lbs., Step 2: loosen all bolts completely, Step 3: 18.0 ft. lbs., Step 4: 9021 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.

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

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) · Drive Axle Assembly (inspect) · Exhaust System (Complete) (inspect) · Fuel Evaporative Emission Control System Lines (inspect) · Fuel Line (inspect) · Steering Gear Box Assembly (inspect)
Every 30,000 miBody Latches, Locks & Hinges (lubricate) · Drive Belt (replace) · Engine Air Filter Element (replace) · Exterior Lighting (inspect) · Headlamp (inspect alignment) · Radiator Cap (inspect)
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 2015 Infiniti Q40 dominate in one area — the air bags, 3 of 8 reports (38%), well ahead of the next concern. NHTSA has issued no recalls for this vehicle, so these are owner-reported concerns only. 1 of the reports describe a crash and 0 a fire — a small share of the total, but worth weighing against the air bags 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.

0
Open recalls
NHTSA campaigns
91
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
8
Owner complaints
1 involved a crash · 0 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Rollover★★★★★

Owner complaints filed with NHTSA, by component

All 8 complaints on record, top 5 components.

Air Bags3
Unknown Or Other2
Electrical System,Exterior Lighting1
Structure1
Unknown Or Other,Electronic Stability Control (Esc)1

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 91 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 Q40. 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 2015 Q40 take?

4.25 qt of SAE 5W-30 Genuine NISSAN engine oil or equivalent-Engine oil with API Certification Mark, per the factory manual.

Does the 2015 Q40 have open recalls?

NHTSA lists 0 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the Q40 get?

EPA figures are 19 city / 27 highway / 22 combined mpg.