🏷️ Basic Information

Make:

Infiniti

Model:

QX50

Year:

2016

Chassis Code:

J50 (Pre-facelift)

Engine Code:

VQ37VHR

👋 Introduction

Segment:

Luxury Compact Crossover SUV

Positioning:

Positioned as a stylish, performance-oriented alternative to more mainstream luxury crossovers, often appealing to buyers seeking a sportier driving experience.

Competitors:

BMW X3, Audi Q5, Mercedes-Benz GLC (GLK successor), Acura RDX, Lexus NX.

Engine Performance:

Powerful V6 engine offering strong acceleration and responsiveness.

Handling:

Sport-tuned suspension and precise steering contribute to agile handling for its class.

Interior Design:

Luxurious and well-appointed interior with premium materials.

Styling:

Distinctive Infiniti design language, offering a more aggressive and sculpted appearance than some rivals.

AWD System:

Available intelligent All-Wheel Drive system for enhanced traction and stability.

📋 Manual Details

Regions Covered:

North America (USA, Canada, Mexico)

Trim Levels Covered:

All trim levels including Base, Premium, Deluxe Touring, Sport

Total Pages:

Approximately 2000+ pages (estimated, varies by specific publication)

Type:

Factory Service Manual / Repair Manual

Language:

English

Format:

Digital (PDF)

📖 Manual Coverage

Engine:

Detailed diagnosis, repair, and overhaul for VQ37VHR engine components including cooling, lubrication, fuel, ignition, emissions, and engine control systems.

Transmission:

Comprehensive coverage of the RE5R05A 5-speed automatic transmission, including diagnosis, fluid service, component replacement, and torque converter procedures.

Drivetrain:

Front-wheel drive (FWD) and All-wheel drive (AWD) systems, including differential service, driveshaft maintenance, CV joints, and transfer case (if applicable).

Brakes:

Service and repair for hydraulic braking system, ABS, EBD, Brake Assist, parking brake (mechanical/electronic), and related components.

Suspension:

Front and rear suspension systems, including struts, shocks, springs, control arms, bushings, wheel bearings, and steering linkage.

Steering:

Power steering system diagnosis and repair, steering column, rack and pinion unit, and alignment procedures.

Electrical System:

Extensive coverage of the vehicle's electrical architecture, including battery, charging system, starter, lighting, power accessories, and body control modules.

HVAC:

Heating, Ventilation, and Air Conditioning system diagnostics, refrigerant service, component replacement, and climate control module troubleshooting.

Body:

Body panel repair, door mechanisms, latches, hinges, glass replacement, and interior trim removal/installation.

Safety Systems:

SRS airbag systems, seatbelt pre-tensioners, and related sensor diagnostics.

Infotainment:

Audio system, navigation, Bluetooth, and display unit troubleshooting.

Maintenance:

Scheduled maintenance intervals, oil and filter changes, fluid checks and replacements, filter replacements (air, cabin, fuel), spark plug replacement.

Troubleshooting:

Systematic diagnostic procedures for common and uncommon faults, including symptom-based troubleshooting trees and diagnostic trouble codes (DTCs).

Repair:

Detailed step-by-step repair instructions for all major vehicle systems, including component removal, installation, and adjustment.

Rebuilds:

Engine and transmission overhaul procedures, including specifications for critical clearances and torque values.

Diagnostics:

Use of diagnostic tools (like CONSULT III Plus), scan tool data interpretation, and electrical circuit testing.

Wheel Alignment:

Specifications and procedures for front and rear wheel alignment.

Tire Rotation:

Recommended tire rotation patterns.

Brake Service:

Pad replacement, rotor resurfacing/replacement, brake fluid flush.

Timing Belt Or Chain:

VQ37VHR utilizes a timing chain, procedures for inspection and maintenance.

Depth:

Comprehensive, from basic maintenance to advanced engine and transmission rebuilding, including electrical schematics and diagnostic flowcharts.

📊 Manual Specifications

File Type:

PDF

Searchability:

Searchable text for easy navigation and information retrieval.

Resolution:

High-resolution images and diagrams.

Printability:

Printable pages for easy reference in the workshop.

Binding:

N/A (Digital Format)

Paper:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Type:

3.7L V6 DOHC 24-valve

Engine Code:

VQ37VHR

Bore X Stroke:

95.5 mm x 86.0 mm

Compression Ratio:

11.0:1

Valvetrain:

Dual Overhead Camshafts (DOHC), 4 valves per cylinder, Variable Valve Event and Lift (VVEL).

Horsepower:

327 hp @ 7,000 rpm

Torque:

267 lb-ft @ 5,200 rpm

Fuel Delivery:

Electronic Fuel Injection (EFI), Sequential Multi-Port Fuel Injection.

Fuel Type:

Premium Unleaded Gasoline (91 octane or higher recommended)

Fuel Tank Capacity:

17.7 gallons (67 liters)

🔧 Transmission

Transmission Type:

5-speed automatic transmission with manual shift mode and Downshift Rev Matching (DRM).

Transmission Code:

RE5R05A

Optional Transmission:

N/A (5-speed automatic was standard across all trims)

Drive Modes:

Snow mode selectable via console button.

AWD System:

Available Infiniti Intelligent All-Wheel Drive (AWD) with electronically controlled torque split.

📐 Dimensions

Length:

180.1 inches (4,575 mm)

Width:

71.9 inches (1,826 mm)

Height:

63.5 inches (1,613 mm)

Wheelbase:

107.9 inches (2,740 mm)

Ground Clearance:

7.4 inches (188 mm)

Passenger Volume:

93.6 cubic feet (2,651 liters)

Seating Capacity:

5 passengers

Cargo Volume Behind Rear Seats:

24.2 cubic feet (685 liters)

Cargo Volume With Rear Seats Folded:

60.2 cubic feet (1,705 liters)

Curb Weight FWD:

3,708 lbs (1,682 kg)

Curb Weight AWD:

3,858 lbs (1,750 kg)

Gross Vehicle Weight Rating Gvwr:

4,894 lbs (2,220 kg) (AWD)

Wheel Size:

18 or 19 inch alloy wheels

Tire Size Std:

P225/55R18

Tire Size Opt:

P245/45R19

Wheel Bolt Pattern:

5 x 114.3 mm (5 x 4.5 inches)

🛡️ Safety Features

NHTSA Overall Rating:

4 out of 5 stars (2016 model year)

IIHS Rating:

Good in moderate overlap front, side, roof strength, and head restraints & seats tests; Top Safety Pick (with optional front crash prevention).

ABS:

Anti-lock Braking System (ABS)

Ebd:

Electronic Brake-force Distribution (EBD)

Brake Assist:

Brake Assist (BA)

Traction Control:

Traction Control System (TCS)

Stability Control:

Vehicle Dynamic Control (VDC) with integrated traction control.

Hill Start Assist:

Available

Airbags:

Front airbags, front side-impact airbags, front and rear curtain airbags, driver's knee airbag.

Seatbelts:

Three-point seatbelts with pretensioners and load limiters, LATCH system for child seats.

Body Structure:

Zone Body construction with front and rear crumple zones.

💡 Technology Features

Infotainment System:

Infiniti Hard Drive Navigation System with 7-inch WVGA color touch-screen display.

Audio System:

Standard Bose® 10-speaker premium audio system, optional premium audio with surround sound.

Connectivity:

Bluetooth® Hands-Free Phone System, USB connection port, auxiliary audio input, streaming audio via Bluetooth.

Parking Assistance:

Around View® Monitor with Moving Object Detection (MOD), front and rear sonar parking sensors.

Cruise Control:

Intelligent Cruise Control (ICC) available on higher trims.

Collision Warning:

Forward Collision Warning (FCW) and Intelligent Brake Assist (IBA) available on higher trims.

Blind Spot Monitoring:

Blind Spot Warning (BSW) and Blind Spot Intervention (BSI) available on higher trims.

Keyless Entry:

Infiniti Intelligent Key with Push Button Ignition.

Smart Device Integration:

Limited integration compared to modern systems; primarily Bluetooth audio and phone.

🔧 Maintenance

Oil Change Interval:

Every 5,000 miles (8,000 km) or 6 months, whichever comes first, or up to 7,500 miles (12,000 km) with synthetic oil and filter under normal driving conditions (refer to manual for specifics).

Air Filter Replacement:

Every 30,000 miles (48,000 km) or as needed based on inspection.

Cabin Air Filter:

Every 15,000 miles (24,000 km) or 12 months.

Spark Plugs:

Iridium-tipped spark plugs recommended for replacement at 105,000 miles (168,000 km).

Transmission Fluid:

Inspect every 15,000 miles (24,000 km); fluid change recommended at 60,000-100,000 miles (96,000-160,000 km) or based on service history.

Coolant Flush:

Every 30,000 miles (48,000 km) or 24 months.

Engine Oil:

SAE 0W-20, API SN or ILSAC GF-5 certified (Nissan Genuine or equivalent).

Engine Oil Capacity:

6.0 US quarts (5.7 liters) with filter change.

Transmission Fluid:

Nissan Matic S (or equivalent DEXRON®-VI compatible fluid).

Transmission Fluid Capacity:

Approximately 4.5 US quarts (4.3 liters) for a drain and fill.

Coolant:

Nissan Genuine Super Long Life Coolant (Blue) or equivalent OAT-based antifreeze (50/50 mixture with distilled water).

Brake Fluid:

DOT 3 or DOT 4 brake fluid.

Power Steering Fluid:

Nissan Genuine PSF or equivalent ATF compatible fluid (check specific model requirements).

Common Problems:

Oil consumption (particularly on earlier VQ37VHR engines), potential transmission harshness or shifting issues, minor electrical gremlins, potential for interior rattles.

Preventative Maintenance:

Adhering to strict oil change intervals with high-quality synthetic oil can mitigate oil consumption concerns. Regular transmission fluid service is crucial.

📚 Vehicle History

Brand Origin:

Infiniti is the luxury vehicle division of Nissan Motor Company, established in 1989.

Model Lineage:

The QX50 originated as the Infiniti EX series (EX35/EX37). The nameplate was rebranded to QX50 for the 2014 model year, aligning with Infiniti's new naming convention. The 2016 model is part of the first generation (J50 chassis) and represents a pre-facelift version.

First Generation Start:

2007 (as EX35)

Facelift Timing:

A significant facelift occurred for the 2016 model year, introducing a longer wheelbase and revised styling, essentially making the 2016 a transitional year before the full redesign in 2019.

Manufacturing Location:

Japan

🏆 Awards & Recognition

Ward 360 Engine Award:

The VQ series engine family (including the VQ37VHR) has been recognized multiple times on Ward's 10 Best Engines list in previous years for its performance and refinement, though not specifically for the 2016 QX50's version of the VQ37VHR.

Safety Awards:

While specific model awards vary, the Infiniti brand consistently aims for high safety ratings, reflected in IIHS and NHTSA scores.

Consumer Reports:

Consumer Reports ratings for the 2016 QX50 generally indicate average to above-average predicted reliability and owner satisfaction, often praising its powertrain and handling but noting its aging platform and interior space compared to newer competitors.

Emissions Certification:

Meets EPA and CARB emissions standards for its model year.