2018 Mercedes-Benz S-Class prices in Washington
The median asking price for a 2018 Mercedes-Benz S-Class in Washington is $33,245 based on 6 active listings.
As of August 10, 2026, the median asking price for a 2018 Mercedes-Benz S-Class in Washington is $33,245, based on 6 active dealer listings tracked by VinAssessment.
◷ Updated August 10, 2026 ▤ 6 active dealer listings, last refreshed August 10, 2026
Typical: $30,534–$35,019 — the middle half of 6 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 $30,534–$35,019 typical range isn't randomness — two factors explain most of it:
The S450 typically asks $28,363, while the AMG S 63 asks $59,187 — same year, same market.
Asking prices run about $33,571 under 15K miles and fall to $22,948 over 105K miles — roughly $1,000 for every 10,000 miles.
Find your mileage and trim in the configurator below.
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Modelled from 105 real asking prices, adjusted for mileage and location. Not a formal appraisal.
What would a 2018 Mercedes-Benz S-Class cost per month?
Estimate the monthly payment on a $35,274 vehicle. Move the numbers to match your own loan.
Estimate only. Excludes tax, title, registration and dealer fees, and assumes a fixed-rate loan with equal monthly payments. Your actual rate depends on your credit and lender.
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2018 Mercedes-Benz S-Class: a fair price for your mileage
A 2018 Mercedes-Benz S-Class sheds roughly $1,000 for every 10,000 miles. Find your mileage below.
Fair price by mileage and trim
| Mileage | All listings | S560 | S450 | AMG S 63 |
|---|---|---|---|---|
| Under 15K miles | $33,571 | $34,888 | $41,200 | — |
| 15K–30K miles | $59,995 | $61,461 | $38,287 | $101,440 |
| 30K–45K miles | $50,493 | $52,011 | — | $89,888 |
| 45K–60K miles | $38,391 | $40,371 | $32,916 | $58,992 |
| 60K–75K miles | $33,981 | $36,156 | $28,993 | $49,984 |
| 75K–90K miles | $30,585 | $32,364 | $28,336 | $59,999 |
| 90K–105K miles | $27,497 | $28,463 | $25,556 | $43,995 |
| Over 105K miles | $22,948 | $23,225 | $22,758 | — |
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 ⓘ |
|---|---|---|---|
| Under 15K miles | 11 listings | $33,571 | $25K–$48K |
| 15K–30K miles | 15 listings | $59,995 | $39K–$77K |
| 30K–45K miles | 18 listings | $50,493 | $40K–$69K |
| 45K–60K miles | 32 listings | $38,391 | $33K–$52K |
| 60K–75K miles | 29 listings | $33,981 | $30K–$42K |
| 75K–90K miles | 49 listings | $30,585 | $29K–$34K |
| 90K–105K miles | 30 listings | $27,497 | $25K–$30K |
| Over 105K miles | 24 listings | $22,948 | $21K–$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 | 105 listings | $35,274 | $32K–$41K | |
| S450 | 68 listings | $28,363 | $25K–$33K | |
| AMG S 63 | 31 listings | $59,187 | $49K–$70K |
National data; Washington prices track it closely.
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 →.
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 $32,344 (August 2026) — down 7.3% from $34,900 in August 2025.
Monthly price table
| Month | Median price | Typical range | Vehicles listed |
|---|---|---|---|
| August 2026 | $32,344 | $28K–$39K | 136 |
| July 2026 | $31,999 | $28K–$41K | 217 |
| June 2026 | $32,320 | $28K–$40K | 216 |
| May 2026 | $33,018 | $28K–$42K | 212 |
| April 2026 | $33,999 | $29K–$42K | 203 |
| March 2026 | $34,565 | $29K–$44K | 272 |
| February 2026 | $33,148 | $28K–$41K | 294 |
| January 2026 | $32,900 | $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 | $34,900 | $31K–$42K | 70 |
2018 Mercedes-Benz S-Class inventory across the U.S.
Keep exploring S-Class prices
2018 Mercedes-Benz S-Class · $33,245 typical · 6 listingsOther Mercedes-Benz S-Class years
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Own a 2018 Mercedes-Benz S-Class? See what it's worth →
Frequently asked questions
Why do 2018 Mercedes-Benz S-Class prices range from $29,700 to $39,446 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 $30,534 and $35,019 — 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 $1,000 less for every 10,000 miles on the odometer. A 60K-mile example should cost about $3,000 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 $33,552, which is $5,043 below the national average of $38,595. Local supply, demand and transport costs all play a part.
How many 2018 Mercedes-Benz S-Class are for sale in Washington right now?
6 in total, nearly all pre-owned. Counts refresh daily from live dealer inventory.
How we calculate these prices
We track 6 active listings for this vehicle across dealer sites nationwide, last refreshed August 10, 2026. 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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