Renault Scenic IV (Phase I) 1.7 Blue dCi (120 Hp) EDC

The Renault Scenic IV Phase I 1.7 Blue dCi (120 hp) EDC, produced from September 2018 to October 2020, represents a mid-range offering within the fourth generation of Renault’s popular compact minivan. Positioned between the lower-powered diesel variants and the more potent gasoline engines, this version aimed to balance fuel efficiency with acceptable performance for family transportation. It was a key component of the Scenic IV lineup, built on the Common Module Family (CMF) C/D platform, also known as the 1HX0/A3 platform, shared with other Renault-Nissan-Mitsubishi Alliance vehicles. The Scenic IV represented a significant departure from previous generations, adopting a more crossover-inspired design and a focus on interior space and technology.

Powertrain & Engine Architecture

At the heart of the Scenic IV 1.7 Blue dCi EDC lies the Renault R9N engine, a 1.7-liter inline four-cylinder diesel engine. This engine is a member of the Blue dCi family, incorporating advanced technologies to meet stringent Euro 6 emissions standards. The R9N utilizes a common rail direct fuel injection system, operating at a maximum pressure of 2,000 bar, ensuring precise fuel delivery and optimized combustion. The engine also features a variable geometry turbocharger with an intercooler, enhancing both low-end torque and overall power output. The valvetrain employs four valves per cylinder (DOHC), contributing to improved breathing and efficiency.

The “EDC” designation refers to Renault’s Efficient Dual Clutch automatic transmission, a six-speed unit. This transmission offers quicker and smoother gear changes compared to traditional torque converter automatics, contributing to a more engaging driving experience and improved fuel economy. The EDC transmission is a wet dual-clutch system, meaning the clutches are immersed in oil for cooling and lubrication, enhancing durability. The transmission control unit (TCU) is programmed to prioritize fuel efficiency during normal driving conditions, while also providing responsive shifts when needed.

Engine Specifications

The R9N engine in this configuration produces 120 horsepower at 3500 rpm and 300 Nm (221.27 lb-ft) of torque at 1750 rpm. This torque output is a key characteristic of modern diesel engines, providing strong pulling power at low engine speeds. The engine’s displacement is 1749 cm³ (106.73 cubic inches), and it boasts a power-to-weight ratio of 70.2 hp per tonne and a torque-to-weight ratio of 175.5 Nm per tonne.

Driving Characteristics

The 1.7 Blue dCi EDC powertrain delivers a comfortable and practical driving experience. While not overtly sporty, the engine provides sufficient power for everyday driving situations, including highway cruising and overtaking. The EDC transmission contributes to smooth acceleration, and the readily available torque minimizes the need for frequent downshifts. Compared to the lower-powered diesel variants, the 120 hp version offers a noticeable improvement in performance, particularly when fully loaded with passengers and luggage. However, it doesn’t match the responsiveness of the higher-output gasoline engines. The gear ratios are tuned for fuel efficiency, with taller gearing in higher gears to reduce engine speed at cruising speeds. The overall driving experience is refined, with good noise insulation and a comfortable ride quality.

Equipment & Trim Levels

The Scenic IV 1.7 Blue dCi EDC was typically offered in mid-range trim levels, such as the “Dynamique” or “Signature” depending on the specific market. Standard equipment generally included air conditioning, a touchscreen infotainment system with navigation, Bluetooth connectivity, cruise control, and automatic headlights and wipers. Interior upholstery was typically cloth, with options for leather upgrades. The dashboard layout featured a minimalist design with a focus on the central touchscreen display. Optional extras included a panoramic sunroof, a hands-free parking assist system, a premium audio system, and advanced driver-assistance systems (ADAS) such as lane departure warning and automatic emergency braking.

Chassis & Braking

The Scenic IV utilizes a MacPherson strut front suspension and a multi-link rear suspension, providing a good balance between ride comfort and handling. The suspension is tuned to prioritize comfort, but it still offers reasonable body control in corners. The front brakes are ventilated discs, while the rear brakes are solid discs. The steering system is an electric power-assisted rack and pinion system, providing light and precise steering feel. The vehicle is equipped with ABS (Anti-lock Braking System) and Electronic Stability Control (ESC) as standard safety features. Wheel size typically ranged from 17 to 20 inches, with tire sizes varying accordingly. The standard tire size for this variant was 195/55 R20.

Market Reception & Comparison

The Renault Scenic IV 1.7 Blue dCi EDC received generally positive reviews from automotive critics. It was praised for its spacious interior, comfortable ride, and fuel efficiency. The EDC transmission was also well-regarded for its smooth and responsive operation. However, some critics noted that the interior materials could be of higher quality, and the infotainment system could be more intuitive. Compared to other trims in the Scenic IV lineup, the 1.7 Blue dCi EDC offered a good compromise between performance and fuel economy. It was more economical than the gasoline engines but offered more power than the lower-powered diesel variants. In terms of reliability, the R9N engine has proven to be generally robust, although some owners have reported issues with the EDC transmission, such as clutch wear and software glitches.

Technical Specifications

Legacy

The Renault Scenic IV 1.7 Blue dCi EDC remains a popular choice in the used car market, offering a practical and economical option for families. The R9N engine has proven to be relatively reliable, although regular maintenance is essential to ensure longevity. The EDC transmission requires careful servicing, and potential buyers should be aware of the possibility of clutch wear. Overall, this variant represents a well-rounded package, offering a good balance of performance, fuel efficiency, and practicality. Its continued presence in the used car market is a testament to its enduring appeal and the Scenic’s reputation as a versatile family vehicle. The combination of diesel efficiency and automatic convenience continues to attract buyers seeking a comfortable and economical mode of transport.