: 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, especially in the 2018–2020 facelift years, owners should be mindful of: MERCEDES-BENZ W222 S-CLASS S-400D V4.3 1.46
The S 400 d features the OM656 2.9-liter inline-six turbocharged diesel engine, introduced during the 2017 facelift. : The engine is described as "almost inaudible"
The Mercedes-Benz W222 S-Class , specifically the facelifted , is widely regarded by enthusiasts and reviewers as the "sweet spot" of the W222 generation (2013–2020). It balances world-class refinement with a remarkably efficient and powerful diesel engine that many consider superior to its petrol counterparts for long-distance cruising. Performance & Engine (S 400 d) : This generation pioneered "Intelligent Drive
: Standard air suspension (Airmatic) provides a "library-like" cabin environment, often cited as one of the quietest in the world.
: 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 engine is described as "almost inaudible" at cruising speeds, rivaling the silence of many petrol V6 engines. Key Review Highlights