MERCEDES-BENZ S CLASS (2017-20) S350L 4DR SALOON 2.9D DPFR SS 286 EU6 AMG LINE EXECUTIVE PREMIUM 9G-T+ AUTO
Buyer's Guide & Data from our Checks
The MERCEDES-BENZ S CLASS (2017-20) S350L 4DR SALOON 2.9D DPFR SS 286 EU6 AMG LINE EXECUTIVE PREMIUM 9G-T+ AUTO is a long-wheelbase luxury saloon, sitting near the top of the UK executive-car market. It offers a spacious, comfort-focused alternative to mainstream family cars, with AMG Line styling adding a sportier look. The diesel engine and automatic transmission make it well suited to long journeys and regular motorway travel.
Mycarcheck.com records show 1,325 checks covering 362 different cars, a substantial sample for this exact S350L version. The average private-sale valuation is £29,700, with recorded mileage averaging 77,000 miles and annual use around 15,000 miles. Cars in the data had about 1.75 previous keepers on average, useful context when assessing a specific example.
Best for executives or buyers seeking refinement and rear-seat room, it rivals the BMW 7 Series and Audi A8, with comfort, presence and diesel range among its strengths.
Considering a Mercedes S-Class? Outstanding finance, write-offs, hidden damage, mileage discrepancies or theft could turn a luxury buy into a costly mistake. Enter the reg now and check before you commit.
Key Findings
The following statistics are drawn from our checks of 362 different vehicles, run between February 17th 2021 and October 31st 2026. These real-world insights provide context for this vehicle's place in the market, as well as its typical usage.
1,325
Lookups
Lookups
73
Hidden Histories
Hidden Histories
87k
Average Mileage
Average Mileage
£29,700
Average Valuation
Average Valuation
