Mercedes-benz W222 S-class S-400d V4.3 1.46 Apr 2026

: It produces roughly 325–335 hp and a massive 700 Nm (516 lb-ft) of torque, allowing it to reach 0–62 mph in just 5.4 seconds .

: The engine is described as "almost inaudible" at cruising speeds, rivaling the silence of many petrol V6 engines. Key Review Highlights MERCEDES-BENZ W222 S-CLASS S-400D V4.3 1.46

: Standard air suspension (Airmatic) provides a "library-like" cabin environment, often cited as one of the quietest in the world. : It produces roughly 325–335 hp and a

: This generation pioneered "Intelligent Drive," which includes advanced adaptive cruise control, lane-keeping assist, and steering assistance that feels remarkably natural. Potential Issues to Watch While generally reliable

: The W222 interior is a benchmark for luxury, featuring dual 12.3-inch displays and high-quality materials like Nappa leather and real wood.

The S 400 d features the OM656 2.9-liter inline-six turbocharged diesel engine, introduced during the 2017 facelift.

While generally reliable, especially in the 2018–2020 facelift years, owners should be mindful of: