2018 Mercedes Benz S Class prices in Washington
The median asking price for a 2018 Mercedes Benz S Class in Washington is $35,068 based on 5 active listings.
As of July 25, 2026, the median asking price for a 2018 Mercedes Benz S Class in Washington is $35,068, based on 5 active dealer listings tracked by VinAssessment.
◷ Updated July 25, 2026 ▤ 5 active dealer listings, refreshed daily Methodology →
Typical: $34,995–$35,995 — the middle half of 5 asking prices
Why the wide range? Price depends mostly on configuration and mileage — see below. This spread covers the middle 96% of asking prices: we exclude the cheapest and priciest 2% (payment-priced ads, typos, salvage) so outliers don't distort it.
What moves the price on a 2018 Mercedes Benz S Class
The $34,995–$35,995 typical range isn't randomness — two factors explain most of it:
Asking prices run about $65,775 at 15K–30K miles and fall to $23,566 over 105K miles — roughly $4,700 for every 10,000 miles.
The S450 typically asks $29,173, while the AMG S 63 asks $59,033 — same year, same market.
Find your mileage and trim in the configurator below.
Configure the exact car
Modelled from 72 real asking prices, adjusted for mileage and location. Not a formal appraisal.
2018 Mercedes Benz S Class: a fair price for your mileage
A 2018 Mercedes Benz S Class sheds roughly $4,700 for every 10,000 miles. Find your mileage below.
Fair price by mileage and trim
| Mileage | All listings | S560 | S450 | AMG S 63 |
|---|---|---|---|---|
| 15K–30K miles | $65,775 | $66,075 | — | — |
| 30K–45K miles | $49,784 | $53,699 | $30,580 | $89,888 |
| 45K–60K miles | $36,452 | $38,158 | $32,272 | $67,241 |
| 60K–75K miles | $33,993 | $35,505 | $29,707 | $53,492 |
| 75K–90K miles | $31,641 | $33,066 | $28,296 | $63,148 |
| 90K–105K miles | $27,498 | $28,357 | $25,476 | $43,995 |
| Over 105K miles | $23,566 | $23,463 | $21,228 | — |
Medians of live asking prices per band and version; “—” means fewer than 3 matching listings. National data.
Fair price by mileage — all versions combined
| Mileage ⓘ | Based on ⓘ | Fair price ⓘ | Typical range ⓘ |
|---|---|---|---|
| 15K–30K miles | 8 listings | $65,775 | $51K–$71K |
| 30K–45K miles | 17 listings | $49,784 | $40K–$67K |
| 45K–60K miles | 30 listings | $36,452 | $33K–$40K |
| 60K–75K miles | 27 listings | $33,993 | $30K–$40K |
| 75K–90K miles | 28 listings | $31,641 | $30K–$35K |
| 90K–105K miles | 20 listings | $27,498 | $25K–$37K |
| Over 105K miles | 23 listings | $23,566 | $22K–$26K |
Same trim and condition assumed — mileage is the biggest lever after configuration. National data; Washington prices track it closely.
2018 Mercedes Benz S Class: price by trim
| Trim | Based on ⓘ | Median price ⓘ | Typical range ⓘ | Where it sits ⓘ |
|---|---|---|---|---|
| S560 | 72 listings | $36,647 | $34K–$42K | |
| S450 | 49 listings | $29,173 | $25K–$31K | |
| AMG S 63 | 26 listings | $59,033 | $51K–$71K |
Based on a small number of listings per trim — medians are indicative, not definitive. National data; Washington prices track it closely.
Price history
Median asking price by month — national · shaded band is the typical range (25th–75th percentile)
The median listing price for a 2018 Mercedes Benz S Class is $32,130 (July 2026) — down 12.4% from $36,685 in August 2025.
Monthly price table
| Month | Median price | Typical range | Vehicles listed |
|---|---|---|---|
| July 2026 | $32,130 | $29K–$40K | 172 |
| June 2026 | $32,777 | $29K–$40K | 215 |
| May 2026 | $33,448 | $28K–$42K | 212 |
| April 2026 | $34,216 | $29K–$42K | 203 |
| March 2026 | $34,565 | $29K–$44K | 272 |
| February 2026 | $33,148 | $29K–$41K | 294 |
| January 2026 | $32,940 | $29K–$41K | 290 |
| December 2025 | $33,989 | $28K–$42K | 216 |
| November 2025 | $33,998 | $29K–$42K | 161 |
| October 2025 | $36,524 | $32K–$45K | 144 |
| September 2025 | $34,995 | $32K–$44K | 123 |
| August 2025 | $36,685 | $31K–$44K | 130 |
2018 Mercedes Benz S Class inventory across the U.S.
Keep exploring S Class prices
2018 Mercedes Benz S Class · $35,908 typical · 5 listingsOther Mercedes Benz S Class years
Live 2018 Mercedes Benz S Class listings, priced by VIN
Every VIN links to a full market report: decode, active listings and the local price band. Shop 2017–2019 Mercedes Benz S Class listings on VehiSales →.
More 2018 Mercedes Benz prices
Frequently asked questions
Why do 2018 Mercedes Benz S Class prices range from $30,105 to $43,176 in Washington?
The spread comes down to configuration and mileage: higher-mileage, base-configuration examples sit near the low end, while low-mileage and premium configurations reach the top. Half of all listings fall between $34,995 and $35,995 — see the mileage and trim breakdowns above for where a specific vehicle lands.
How much should mileage change the price of a 2018 Mercedes Benz S Class?
Expect roughly $4,700 less for every 10,000 miles on the odometer. A 60K-mile example should cost about $14,100 less than a 30K-mile one of the same trim — check the fair-price-by-mileage table above for your band.
Do Mercedes Benz S Class prices in Washington differ from the rest of the country?
Yes. The average in Washington is $35,908, which is $3,201 below the national average of $39,109. Local supply, demand and transport costs all play a part.
How many 2018 Mercedes Benz S Class are for sale in Washington right now?
5 in total, nearly all pre-owned. Counts refresh daily from live dealer inventory.
How we calculate these prices
We track 5 active listings for this vehicle across dealer sites nationwide, updated every day. Average and median are computed from real asking prices on live listings. We exclude the top and bottom 2% of prices to remove data errors, salvage titles, and monthly-payment figures posted as if they were sale prices. Prices reflect dealer asking prices — not final sale prices — and exclude taxes, fees, and incentives. Trim and mileage move the price more than any other factor; see the breakdowns above.
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