2021 Lexus NX II (AZ20) 350 (275 Hp) AWD ECT-i

The Lexus NX 350 AWD, introduced for the 2022 model year as part of the NX II (AZ20) generation, represents Lexus’s entry into the compact luxury crossover segment with a focus on performance and refinement. Replacing the NX 300, the 350 variant offers a significant power upgrade and a more sophisticated driving experience. This model year marked a complete redesign of the NX, moving to the GA-K platform shared with the Toyota RAV4 and other Toyota/Lexus models. The NX 350 AWD, equipped with the 2.4-liter turbocharged inline-four engine and an 8-speed automatic transmission, is positioned as the mid-range offering in the NX lineup, slotting above the NX 250 and below the NX 450h+ plug-in hybrid.

Technical Specifications

Brand Lexus
Model NX
Generation NX II (AZ20)
Type (Engine) 350 (275 Hp) AWD ECT-i
Start of production 2021
Powertrain Architecture Internal Combustion engine
Body type SUV, Crossover
Seats 5
Doors 5
Fuel consumption (urban) 10.7 l/100 km (22 US mpg, 26.4 UK mpg, 9.3 km/l)
Fuel consumption (extra urban) 8.1-8.4 l/100 km (29-28 US mpg, 34.9-33.6 UK mpg, 12.3-11.9 km/l)
Fuel consumption (combined) 9.4 l/100 km (25 US mpg, 30.1 UK mpg, 10.6 km/l)
Fuel Type Petrol (Gasoline)
Acceleration 0 – 60 mph 6.6 sec
Maximum speed 200 km/h (124.27 mph)
Emission standard ULEV III
Weight-to-power ratio 6.7 kg/Hp, 150.3 Hp/tonne
Weight-to-torque ratio 4.3 kg/Nm, 235 Nm/tonne
Power 275 Hp
Power per litre 114.9 Hp/l
Torque 430 Nm @ 1700-3600 rpm (317.15 lb.-ft. @ 1700-3600 rpm)
Engine layout Front, Transverse
Engine Model/Code T24A-FTS
Engine displacement 2393 cm3 (146.03 cu. in.)
Number of cylinders 4
Engine configuration Inline
Compression ratio 11:1
Number of valves per cylinder 4
Fuel injection system Direct injection and Multi-port manifold injection
Engine aspiration Turbocharger, Intercooler
Valvetrain DOHC, VVT-i
Engine oil capacity 5.3 l (5.6 US qt | 4.66 UK qt)
Coolant capacity 8.7 l (9.19 US qt | 7.65 UK qt)
Kerb Weight 1830 kg (4034.46 lbs.)
Trunk (boot) space – minimum 643 l (22.71 cu. ft.)
Trunk (boot) space – maximum 1328 l (46.9 cu. ft.)
Fuel tank capacity 55 l (14.53 US gal | 12.1 UK gal)
Length 4661 mm (183.5 in.)
Width 1864 mm (73.39 in.)
Height 1661 mm (65.39 in.)
Wheelbase 2690 mm (105.91 in.)
Drag coefficient (Cd) 0.35
Minimum turning circle 11.6 m (38.06 ft.)
Drivetrain Architecture All wheel drive (4×4). ICE drives front wheels, rear driven by clutch.
Number of gears 8
Gearbox type Automatic transmission ECT-i

Introduction

The 2022 Lexus NX 350 AWD marked a significant step forward for the NX line, offering a compelling blend of luxury, performance, and technology. Built on the GA-K platform, it boasts improved rigidity and a lower center of gravity compared to its predecessor. The introduction of the T24A-FTS engine, a 2.4-liter turbocharged inline-four, was a key differentiator, providing a substantial increase in horsepower and torque over the previous 2.0-liter naturally aspirated engine. The NX 350 aimed to appeal to buyers seeking a more engaging driving experience without sacrificing the comfort and refinement expected from the Lexus brand. It competes directly with vehicles like the Acura RDX, BMW X3, and Audi Q5.

Powertrain & Engine Architecture

At the heart of the NX 350 lies the T24A-FTS engine, a 2.4-liter (2393 cc) turbocharged inline-four cylinder engine. This engine utilizes a combination of direct injection and multi-port fuel injection to optimize combustion efficiency and power delivery. The engine features a twin-scroll turbocharger with an intercooler, contributing to reduced turbo lag and increased boost pressure. The valvetrain employs a Double Overhead Camshaft (DOHC) configuration with Variable Valve Timing-intelligent (VVT-i) technology, allowing for precise control over valve timing and lift for optimal performance across the rev range. The engine is paired with an 8-speed automatic transmission (ECT-i – Electronically Controlled Transmission with intelligence). This transmission is designed for smooth and responsive shifting, and features paddle shifters for manual control. The AWD system utilizes a mechanically driven center differential, providing full-time all-wheel drive capability.

Driving Characteristics

The NX 350 AWD delivers a noticeably more spirited driving experience than the base NX 250. The 275 horsepower and 317 lb-ft of torque provide ample acceleration, with a 0-60 mph time of around 6.6 seconds. The 8-speed automatic transmission is well-tuned, offering quick and seamless gear changes. The turbocharger provides a broad torque curve, making the engine feel responsive at various speeds. While not a sports SUV, the NX 350 handles corners with confidence, thanks to its well-tuned suspension and precise steering. Compared to the NX 450h+ plug-in hybrid, the 350 prioritizes immediate power delivery and a more traditional driving feel, while the hybrid focuses on fuel efficiency and electric range.

Equipment & Trim Levels

The NX 350 AWD typically comes standard with a generous array of features, including Lexus Safety System+ 3.0 (featuring Pre-Collision System with Pedestrian Detection, Lane Departure Alert with Intelligent Steering Assist, and Dynamic Radar Cruise Control), a 9.8-inch touchscreen display, Apple CarPlay and Android Auto integration, and a premium sound system. Interior upholstery is typically NuLuxe simulated leather, with available upgrades to genuine leather. Optional extras include a Mark Levinson Premium Surround Sound System, a panoramic moonroof, heated and ventilated front seats, and a head-up display. Trim levels often include base, Premium, and Luxury variants, with each successive trim adding more features and refinement.

Chassis & Braking

The NX 350 utilizes a MacPherson strut front suspension and a double-wishbone rear suspension, providing a comfortable ride and responsive handling. The chassis benefits from increased rigidity thanks to the GA-K platform. The braking system consists of ventilated discs on all four wheels, providing ample stopping power. Anti-lock Braking System (ABS) and Electronic Brake-force Distribution (EBD) are standard features. The steering system is an electric power steering (EPS) system, offering precise and responsive steering feel.

Market Reception & Comparison

The Lexus NX 350 was generally well-received by automotive critics, who praised its powerful engine, refined interior, and comfortable ride. Comparisons to rivals like the Acura RDX and BMW X3 often highlighted the NX 350’s value proposition, offering a similar level of luxury and performance at a competitive price point. Fuel economy, while not class-leading, was considered acceptable for a vehicle in this segment. Reliability was also a strong point, consistent with Lexus’s reputation for building durable and dependable vehicles. Some critics noted that the infotainment system, while improved, could still be more intuitive.

Legacy

The T24A-FTS engine and 8-speed automatic transmission combination in the NX 350 has proven to be a reliable powertrain. As of late 2023, reports of major mechanical issues are relatively uncommon. On the used car market, the 2022 and later NX 350 models hold their value well, reflecting the Lexus brand’s strong reputation and the vehicle’s desirable features. The NX 350 represents a significant evolution for the NX line, establishing it as a strong contender in the competitive luxury crossover segment and setting the stage for future iterations.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top