MERCEDES-BENZ S CLASS (2017-20) S400L 4DR SALOON LWB 2.9D DPFR SS 340 EU6 AMG LINE EXECUTIVE PREMIUM PLUS 9G-T+ AUTO

Buyer's Guide & Data from our Checks
The MERCEDES-BENZ S CLASS (2017-20) S400L 4DR SALOON LWB 2.9D DPFR SS 340 EU6 AMG LINE EXECUTIVE PREMIUM PLUS 9G-T+ AUTO is a luxury saloon that sits at the top of Mercedes' lineup, known for its elegant design and premium features. It is a long-wheelbase version, offering extra space and comfort, making it ideal for executive drivers, high-end chauffeur services, or those seeking a luxurious ride for long-distance journeys. This model is well-suited for families or professionals who value comfort, technology, and prestige, with an average mileage of around 75,000 miles based on data from nearly 250 checks.
What makes this Mercedes stand out is its combination of sophisticated styling, an advanced driving experience, and a strong reputation for reliability. Its powerful diesel engine and numerous premium features, including AMG styling and a high-end interior, set it apart from competitors in the executive saloon class. The vehicle's high-value used car market valuation of approximately £33,900 suggests it is both desirable and well regarded. Compared to rivals like BMW 7 Series or Audi A8, it’s praised for its smooth ride and luxurious feel.
Overall, the S400L in this specification offers a blend of performance, comfort, and prestige. Its consistent use as a premium option for those requiring spaciousness and elegance makes it a popular choice in the used luxury saloon market. With its polished appearance and impressive features, it continues to appeal to those seeking a stylish, reliable, and sophisticated vehicle.
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Key Findings
The following statistics are drawn from our checks of 71 different vehicles, run between February 20th 2021 and May 31st 2026. These real-world insights provide context for this vehicle's place in the market, as well as its typical usage.
247
Lookups
Lookups
8
Hidden Histories
Hidden Histories
87k
Average Mileage
Average Mileage
£33,900
Average Valuation
Average Valuation












