MERCEDES-BENZ SL CLASS (2016-21)

Buyer's Guide & Data from our Checks
The MERCEDES-BENZ SL CLASS (2016-21) is a premium two-seat convertible, a luxury grand-tourer rather than a family hatchback or SUV. Its folding hard top brings open-air enjoyment and a quieter, more sheltered cabin when raised, setting it apart from many soft-top rivals in the UK market.
Mycarcheck.com recorded 1,801 look-ups across 765 VINs, showing interest in this model. Checks give an average private-sale value of £38,000, average recorded mileage of 25,000 miles and annual use of 4,000 miles. Owners average about 1.34 previous keepers, suggesting light use.
This Mercedes is best suited to couples or enthusiasts seeking comfortable weekend drives and long-distance touring, not maximum practicality or low-cost motoring. It is known for polished comfort, a premium cabin and effortless open-top appeal. Compared with the BMW 6 Series Convertible, the SL places greater emphasis on relaxed luxury than sporty handling, making the MERCEDES-BENZ SL CLASS (2016-21) a used-car choice.
Before buying a Mercedes SL, check for outstanding finance, insurance write-offs, hidden damage, theft or mileage discrepancies. Enter the reg now—skipping a check could leave you with a costly mistake.
Key Findings
The following statistics are drawn from our checks of 765 different vehicles, run between February 18th 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.
1,801
Lookups
Lookups
27
Hidden Histories
Hidden Histories
29k
Average Mileage
Average Mileage
£38,000
Average Valuation
Average Valuation
Model Variants
SL400 2DR ROADSTER 3.0 V6 367 GPF SS EU6 GRAND EDITION 9G-T+ AUTO
SL400 2DR ROADSTER 3.0 V6 367 GPF SS EU6 GRAND EDITION PREMIUM 9G-T+ AUTO
SL400 2DR ROADSTER 3.0 V6 367 SS EU6 AMG LINE 9G-T+ AUTO
SL400 2DR ROADSTER 3.0 V6 367 SS EU6 AMG LINE PREMIUM 9G-T+ AUTO
SL400 2DR ROADSTER 3.0 V6 367 SS EU6 DESIGNO EDITION 9G-T+ AUTO
SL400 2DR ROADSTER 3.0 V6 367 SS EU6 EDITION 9G-T+ AUTO
SL500 2DR ROADSTER 4.7 V8 455 GPF SS EU6 AMG LINE PREMIUM 9G-T+ AUTO
SL500 2DR ROADSTER 4.7 V8 455 GPF SS EU6 GRAND EDITION 9G-T+ AUTO
SL500 2DR ROADSTER 4.7 V8 455 GPF SS EU6 GRAND EDITION PREMIUM 9G-T+ AUTO
SL500 2DR ROADSTER 4.7 V8 455 SS EU6 AMG LINE 9G-T+ AUTO












