# Mercedes-Benz 420 SL prices

> OttoQuest tracks asking prices and sold prices of the Mercedes-Benz 420 SL.

Trim page · 1973–1986 · data as of Nov 14, 2026 · [ottoquest.com](https://ottoquest.com/variants/mercedes-benz-420-sl)

- For sale: 1 cars, model years 1973–1986
- Most are priced between $18,000 and $18,000, depending on model year and mileage
- Auction results on record: 1, latest Jun 24, 2015

## Price by model year

Asking prices of cars for sale now and sold prices over the last three years.

| Model year | For sale | Median asking | Sold · 3 yrs | Median sold | Middle 50% sold |
| --- | ---: | ---: | ---: | ---: | ---: |
| 1973 | 1 | — | 0 | — | — |

## Other 420 trims

Each priced on its own.

| Trim | Years | For sale | Median asking |
| --- | ---: | ---: | ---: |
| [sec](https://ottoquest.com/variants/mercedes-benz-420-sec.md) | 1985 | — | — |

## Specs and fuel economy

EPA figures by model year.

| Model year | Combined MPG | EV range | Class |
| --- | ---: | ---: | --- |
| 1991 | 13–15 | — | Midsize Cars |
| 1990 | 13–15 | — | Midsize Cars |
| 1989 | 15 | — | Midsize Cars |
| 1988 | 15 | — | Midsize Cars |
| 1987 | 15 | — | Midsize Cars |
| 1986 | 15 | — | Midsize Cars |

## More

- Value a Mercedes-Benz 420 SL: https://ottoquest.com/value?model=mercedes-benz-420&variant=mercedes-benz-420-sl
- Mercedes-Benz 420 SL for sale, with each car's market value: https://ottoquest.com/listings?variant=mercedes-benz-420-sl
- Check one car's price: https://ottoquest.com/deal-check.md?vin=<VIN>&price=<price>&mileage=<miles> (markdown; the page is https://ottoquest.com/deal-check)
- Value a car by model, trim, year and mileage: https://ottoquest.com/value
- Free alerts for new listings and price drops: https://ottoquest.com/deals

Free with an account at https://ottoquest.com/variants/mercedes-benz-420-sl: where it's cheaper by state, cars below market now, year-by-year days to sell, the sold-price trend and every auction result.

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OttoQuest · [this page](https://ottoquest.com/variants/mercedes-benz-420-sl). Prices are asking prices of cars for sale in the U.S. and recorded sold prices; a guide to the price, not to a car's condition.