# Used 2018 Mercedes-Benz SL 550 prices

> The average asking price for a used 2018 Mercedes-Benz SL 550 is $46,913, with 59,784 miles on average, across 12 cars for sale at U.S. dealers as of Nov 10, 2026.

Data as of Nov 14, 2026 · [ottoquest.com](https://ottoquest.com/models/mercedes-benz-sl550/2018) · [all Mercedes-Benz SL 550 model years](https://ottoquest.com/models/mercedes-benz-sl550.md)

- Average asking price: $46,913 (median $48,165)
- Average miles: 59,784
- For sale now: 12
- Average days listed: 12 (of 3 with a listing date)

## 2018 Mercedes-Benz SL 550 prices by state

Too few cars in any one state yet.

## Other Mercedes-Benz SL 550 years

| Year | Average asking | Miles | For sale |
| --- | ---: | ---: | ---: |
| [2020](https://ottoquest.com/models/mercedes-benz-sl550/2020.md) | $71,466 | 31,607 | 3 |
| [2019](https://ottoquest.com/models/mercedes-benz-sl550/2019.md) | $50,012 | 56,049 | 5 |
| **2018** | $46,913 | 59,784 | 12 |
| [2017](https://ottoquest.com/models/mercedes-benz-sl550/2017.md) | $41,228 | 49,541 | 7 |
| [2016](https://ottoquest.com/models/mercedes-benz-sl550/2016.md) | $42,799 | 38,311 | 13 |
| [2015](https://ottoquest.com/models/mercedes-benz-sl550/2015.md) | $49,000 | 23,500 | 1 |
| [2014](https://ottoquest.com/models/mercedes-benz-sl550/2014.md) | $30,091 | 55,375 | 7 |
| [2013](https://ottoquest.com/models/mercedes-benz-sl550/2013.md) | $27,638 | 67,401 | 16 |
| [2012](https://ottoquest.com/models/mercedes-benz-sl550/2012.md) | $20,291 | 76,250 | 2 |
| [2011](https://ottoquest.com/models/mercedes-benz-sl550/2011.md) | $21,950 | 76,164 | 6 |
| [2009](https://ottoquest.com/models/mercedes-benz-sl550/2009.md) | $20,919 | 70,818 | 15 |
| [2008](https://ottoquest.com/models/mercedes-benz-sl550/2008.md) | $13,616 | 87,873 | 3 |
| [2007](https://ottoquest.com/models/mercedes-benz-sl550/2007.md) | $20,182 | 70,237 | 9 |

## Recalls · 2

NHTSA, this model year.

- ELECTRICAL SYSTEM:SOFTWARE (Feb 5, 2021): Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles.  Please refer to the Part 573 report for specific vehicle model details.  The software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.
- AIR BAGS:FRONTAL:PASSENGER SIDE:INFLATOR MODULE (Aug 2, 2019): Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2018 SL65 AMG, 2019 SL63 AMG and 2018-2019 SL450 and SL550 vehicles.  The front passenger air bag may have been improperly sewn, allowing the seam to tear during deployment.

## Used 2018 Mercedes-Benz SL 550 prices: common questions

### What is a fair price for a used 2018 Mercedes-Benz SL 550?

Used 2018 Mercedes-Benz SL 550s for sale at U.S. dealers ask $46,913 on average (half ask less than $48,165), across 12 cars. The cars for sale have 59,784 miles on average: one with fewer miles is worth more, and one with more is worth less. To check one car's price against cars of its trim and mileage, enter its VIN in OttoQuest's free Deal Check.

### How does the 2018 Mercedes-Benz SL 550 compare with the 2017 and 2019?

The 2018 asks $46,913 on average with 59,784 miles; the 2017 asks $41,228 with 49,541 miles, and the 2019 asks $50,012 with 56,049 miles.

### Does the 2018 Mercedes-Benz SL 550 have recalls?

NHTSA lists 2 safety recall campaigns that cover the 2018 Mercedes-Benz SL 550. Repairs are free at a dealer of the make; check a car's VIN with NHTSA before you buy to see whether its recalls were fixed.

## More

- 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

Used and certified cars for sale at U.S. dealers, each car counted once. Days listed are the dealer's own days on market where they publish it. Price moves compare the same cars at both ends of the window.

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OttoQuest · [this page](https://ottoquest.com/models/mercedes-benz-sl550/2018). 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.