2016-2018 Volvo S90 () 2.0 D4 (190 Hp) AWD Automatic

The Volvo S90 2.0 D4 AWD Automatic, produced from 2016 to 2018, represents a key variant within the first generation (2016 onwards) of Volvo’s flagship sedan. Positioned as a mid-range offering in the S90 lineup, it aimed to balance fuel efficiency, respectable performance, and all-weather capability. This model was built on Volvo’s Scalable Product Architecture (SPA) platform, also underpinning the XC90 and V90, signifying a move towards a more modular and sophisticated engineering approach for the brand. The D4 designation indicates a four-cylinder diesel engine with approximately 190 horsepower, coupled with an eight-speed automatic transmission and Volvo’s all-wheel-drive system.

At the heart of the S90 D4 lies Volvo’s 2.0-liter inline-four cylinder diesel engine, internally designated the D4204T14. This engine utilizes a common-rail direct fuel injection system, delivering fuel at extremely high pressure for optimized combustion. The engine is turbocharged, and in this configuration, employs a twin-turbo setup – a low-pressure turbocharger combined with a high-pressure turbocharger. This arrangement minimizes turbo lag and provides a broader, more consistent torque curve. The engine also features an intercooler to further enhance performance by cooling the intake air. The valvetrain utilizes a Double Overhead Camshaft (DOHC) configuration with four valves per cylinder, contributing to efficient gas exchange. The eight-speed automatic transmission, sourced from Aisin, is known for its smooth shifting and responsiveness. It’s designed to work seamlessly with the engine’s torque characteristics, providing comfortable cruising and adequate acceleration.

In real-world driving, the S90 D4 Automatic delivers a refined and comfortable experience. While not overtly sporty, the 190 horsepower and 400 Nm (295 lb-ft) of torque provide sufficient power for everyday driving and highway overtaking. Acceleration from 0 to 100 km/h (0-62 mph) takes approximately 8.4 seconds. The eight-speed automatic transmission is well-programmed, offering smooth gear changes and contributing to relaxed cruising. Compared to the higher-output D5 variant, the D4 feels less urgent in its acceleration, but it compensates with improved fuel economy. Against the gasoline-powered T5 and T6 models, the D4 offers significantly better fuel efficiency but lacks the immediate responsiveness and higher top-end power of those engines. The all-wheel-drive system provides enhanced traction in adverse weather conditions, making it a practical choice for regions experiencing snow or rain.

The S90 D4 Automatic typically came equipped with a generous level of standard features. Interior appointments included comfortable seating for five, often upholstered in leather or a high-quality synthetic leather alternative. The dashboard featured a prominent vertically-oriented touchscreen infotainment system, controlling most vehicle functions. Standard equipment often included automatic climate control, a rearview camera, parking sensors, and a suite of safety features such as City Safety (Volvo’s collision avoidance system). Optional extras included a premium audio system, panoramic sunroof, adaptive cruise control, and upgraded interior trim materials. Trim levels varied by market, but generally offered increasing levels of luxury and technology.

The S90 D4 utilizes a double wishbone front suspension and an independent multi-link rear suspension, both incorporating a stabilizer bar to reduce body roll. This setup provides a comfortable ride quality while maintaining reasonable handling characteristics. Braking duties are handled by ventilated discs at the front and solid discs at the rear. The car is equipped with ABS (Anti-lock Braking System) as standard. Steering is electrically assisted, providing a light and precise feel. Tire sizes varied depending on the trim level, ranging from 225/55 R17 to 255/35 R20.

Critics generally praised the S90 D4 Automatic for its comfortable ride, refined interior, and fuel efficiency. The diesel engine was noted for its quiet operation and strong low-end torque. However, some reviewers found the performance to be adequate rather than exhilarating, particularly when compared to more powerful alternatives. Fuel economy was a strong point, with combined figures around 4.7 l/100 km (50 US mpg). Reliability has been generally good, although, as with any modern diesel, the particulate filter can be a potential source of issues if the vehicle is primarily used for short trips. Compared to the D5, the D4 offered a more affordable entry point into the S90 range, appealing to buyers prioritizing economy and comfort over outright performance.

Today, the Volvo S90 D4 Automatic represents a compelling option in the used car market. Its combination of comfort, fuel efficiency, and all-wheel-drive capability makes it a practical choice for buyers seeking a refined and reliable sedan. While diesel engines have faced increased scrutiny in recent years, the D4 engine, when properly maintained, has proven to be durable. The availability of parts and servicing is generally good, and the S90’s sophisticated features continue to appeal to discerning buyers. Its position as a mid-range trim means it offers a good balance of features and affordability, making it a strong contender in the premium used car segment.