The Infiniti FX37, specifically the 2012-2013 model year following the 2011 facelift, represents a significant iteration of Infiniti’s mid-size luxury crossover. Positioned as a performance-oriented offering within the FX lineup, the FX37 with the 3.7-liter V6 engine and seven-speed automatic transmission aimed to deliver a compelling blend of luxury, style, and driving dynamics. This variant occupied the middle ground in the FX range, slotting above the earlier FX35 and below the higher-performance FX50. It was primarily marketed towards buyers seeking a sporty and sophisticated crossover with a strong emphasis on driving enjoyment, appealing to a demographic that valued both practicality and a premium experience.
Technical Specifications
| Brand | Infiniti |
| Model | FX |
| Generation | FX II (facelift 2011) |
| Type (Engine) | 37 V6 (325 Hp) Automatic |
| Start of production | 2012 |
| End of production | 2013 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Crossover |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban (EPA) | 13.8 l/100 km (17 US mpg, 20.5 UK mpg, 7.2 km/l) |
| Fuel consumption (economy) – extra urban (EPA) | 9.8 l/100 km (24 US mpg, 28.8 UK mpg, 10.2 km/l) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 5.9 kg/Hp, 170.2 Hp/tonne |
| Weight-to-torque ratio | 5.3 kg/Nm, 189.6 Nm/tonne |
| Power | 325 Hp @ 7000 rpm |
| Power per litre | 87.9 Hp/l |
| Torque | 362 Nm @ 5200 rpm (267 lb.-ft. @ 5200 rpm) |
| Maximum engine speed | 7500 rpm |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | VQ37VHR |
| Engine displacement | 3696 cm3 (225.54 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 95.5 mm (3.76 in.) |
| Piston Stroke | 86 mm (3.39 in.) |
| Compression ratio | 11:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC, VVEL |
| Engine oil capacity | 4.9 l (5.18 US qt | 4.31 UK qt) |
| Coolant | 11 l (11.62 US qt | 9.68 UK qt) |
| Kerb Weight | 1909 kg (4208.62 lbs.) |
| Max. weight | 2404 kg (5299.91 lbs.) |
| Max load | 495 kg (1091.29 lbs.) |
| Trunk (boot) space – minimum | 702 l (24.79 cu. ft.) |
| Trunk (boot) space – maximum | 1756 l (62.01 cu. ft.) |
| Fuel tank capacity | 90 l (23.78 US gal | 19.8 UK gal) |
| Max. roof load | 45 kg (99.21 lbs.) |
| Length | 4860 mm (191.34 in.) |
| Width | 1925 mm (75.79 in.) |
| Height | 1680 mm (66.14 in.) |
| Wheelbase | 2885 mm (113.58 in.) |
| Front track | 1635 mm (64.37 in.) |
| Rear (Back) track | 1640 mm (64.57 in.) |
| Ride height (ground clearance) | 187 mm (7.36 in.) |
| Drag coefficient (Cd) | 0.35 |
| Minimum turning circle (turning diameter) | 11.2 m (36.75 ft.) |
| Approach angle | 28.8° |
| Departure angle | 20.9° |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the rear wheels of the vehicle. |
| Drive wheel | Rear wheel drive |
| Number of gears and type of gearbox | 7 gears, automatic transmission |
| Front suspension | Double wishbone, Transverse stabilizer |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs, 320×33 mm |
| Rear brakes | Ventilated discs, 308×16 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 265/60 R18; 265/50 R20 |
| Wheel rims size | 8J x 18; 8J x 20 |
Powertrain & Engine Architecture
The heart of the FX37 is the VQ37VHR 3.7-liter V6 engine. This engine is a member of Nissan/Infiniti’s highly regarded VQ engine family, known for its smooth operation, reliability, and strong performance. The “VHR” designation signifies Variable Valve Event and Lift, a system that continuously adjusts valve timing and lift to optimize engine performance across the rev range. This engine utilizes multi-port fuel injection and a compression ratio of 11:1. The engine produces 325 horsepower at 7,000 rpm and 267 lb-ft of torque at 5,200 rpm. The engine is longitudinally mounted, driving the rear wheels. Paired with the VQ37VHR is a seven-speed automatic transmission. This transmission features adaptive shift control, allowing it to adjust shift points based on driving conditions and driver input. Manual shift mode is also available, offering drivers more control over gear selection.
Driving Characteristics
The FX37’s driving experience is characterized by a balance of comfort and performance. The 325-hp V6 provides ample power for everyday driving and confident passing maneuvers. While not as brutally quick as the FX50, the FX37 delivers a responsive and engaging driving experience. The seven-speed automatic transmission contributes to this, offering smooth and relatively quick shifts. The rear-wheel-drive configuration enhances handling balance, although all-wheel drive was available as an option. Compared to the FX35, the FX37 offered a noticeable increase in power and torque, resulting in improved acceleration and overall responsiveness. The automatic transmission, while convenient, doesn’t offer the same level of control or efficiency as the available seven-speed manual transmission found in some markets.
Equipment & Trim Levels
The FX37 typically came well-equipped with standard features including leather upholstery, power-adjustable front seats, a rearview camera, a premium audio system, and automatic climate control. Optional extras included a navigation system, a panoramic sunroof, adaptive cruise control, lane departure warning, and a blind-spot monitoring system. Interior trim options varied, with choices in wood or aluminum accents. The FX37’s interior design prioritized a sporty and luxurious feel, with a driver-focused cockpit and high-quality materials.
Chassis & Braking
The FX37 utilizes a double wishbone suspension at the front and an independent multi-link suspension at the rear, both incorporating a transverse stabilizer bar. This suspension setup is tuned to provide a comfortable ride while maintaining good handling characteristics. Braking duties are handled by ventilated discs on all four wheels, with larger front discs (320x33mm) than the rear (308x16mm). An Anti-lock Braking System (ABS) is standard. The FX37’s chassis is designed to provide a stable and planted feel, contributing to its confident handling.
Market Reception & Comparison
The Infiniti FX37 was generally well-received by automotive critics, who praised its stylish design, powerful engine, and engaging driving dynamics. However, some reviewers noted that its fuel economy was relatively poor compared to other crossovers in its class. Compared to the FX50, the FX37 offered a more accessible price point while still delivering a satisfying level of performance. Against competitors like the BMW X5 and Acura MDX, the FX37 stood out with its distinctive styling and rear-wheel-drive bias. Reliability reports generally indicate good long-term reliability for the VQ37VHR engine and the seven-speed automatic transmission, although routine maintenance is crucial.
Legacy
The Infiniti FX37, particularly the 2012-2013 models, has maintained a reasonable presence in the used car market. The VQ37VHR engine is known for its durability, and with proper maintenance, these vehicles can provide many years of reliable service. While fuel economy isn’t a strong point, the FX37 remains a popular choice for buyers seeking a stylish, sporty, and relatively affordable luxury crossover. Its distinctive design and engaging driving dynamics continue to appeal to enthusiasts, ensuring its place as a memorable model in Infiniti’s history.
