2018 Bmw X3 prices in California
The median asking price for a 2018 Bmw X3 in California is $18,353 based on 28 active listings.
As of July 26, 2026, the median asking price for a 2018 Bmw X3 in California is $18,353, based on 28 active dealer listings tracked by VinAssessment.
◷ Updated July 26, 2026 ▤ 28 active dealer listings, refreshed daily Methodology →
Typical: $16,853–$21,248 — the middle half of 28 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 Bmw X3
The $16,853–$21,248 typical range isn't randomness — two factors explain most of it:
The XDRIVE30I typically asks $16,443, while the M40I asks $23,681 — same year, same market.
Asking prices run about $17,160 under 15K miles and fall to $14,000 over 105K miles — roughly $300 for every 10,000 miles.
Find your mileage and trim in the configurator below.
Configure the exact car
Modelled from 225 real asking prices, adjusted for mileage and location. Not a formal appraisal.
2018 Bmw X3: a fair price for your mileage
A 2018 Bmw X3 sheds roughly $300 for every 10,000 miles. Find your mileage below.
Fair price by mileage and trim
| Mileage | All listings | SDRIVE30I | M40I |
|---|---|---|---|
| Under 15K miles | $17,160 | $16,934 | $24,900 |
| 15K–30K miles | $25,030 | $25,030 | — |
| 30K–45K miles | $24,085 | $22,799 | $32,196 |
| 45K–60K miles | $21,954 | $21,401 | $30,492 |
| 60K–75K miles | $19,599 | $18,998 | $28,998 |
| 75K–90K miles | $17,570 | $16,998 | $25,482 |
| 90K–105K miles | $16,495 | $15,920 | $23,032 |
| Over 105K miles | $14,000 | $13,796 | $19,852 |
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 | 10 listings | $17,160 | $17K–$22K |
| 15K–30K miles | 6 listings | $25,030 | $24K–$27K |
| 30K–45K miles | 17 listings | $24,085 | $22K–$32K |
| 45K–60K miles | 27 listings | $21,954 | $21K–$24K |
| 60K–75K miles | 47 listings | $19,599 | $18K–$21K |
| 75K–90K miles | 72 listings | $17,570 | $17K–$19K |
| 90K–105K miles | 73 listings | $16,495 | $15K–$22K |
| Over 105K miles | 47 listings | $14,000 | $13K–$18K |
Same trim and condition assumed — mileage is the biggest lever after configuration. National data; California prices track it closely.
2018 Bmw X3: price by trim
| Trim | Based on ⓘ | Median price ⓘ | Typical range ⓘ | Where it sits ⓘ |
|---|---|---|---|---|
| SDRIVE30I | 225 listings | $17,100 | $16K–$20K | |
| M40I | 66 listings | $23,681 | $22K–$27K | |
| XDRIVE30I | 6 listings | $16,443 | $15K–$19K |
Based on a small number of listings per trim — medians are indicative, not definitive. National data; California 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 Bmw X3 is $18,798 (July 2026) — down 6.0% from $19,995 in August 2025.
Monthly price table
| Month | Median price | Typical range | Vehicles listed |
|---|---|---|---|
| July 2026 | $18,798 | $16K–$22K | 425 |
| June 2026 | $18,100 | $16K–$22K | 472 |
| May 2026 | $17,999 | $16K–$22K | 467 |
| April 2026 | $16,999 | $15K–$21K | 461 |
| March 2026 | $17,399 | $15K–$21K | 583 |
| February 2026 | $17,413 | $15K–$21K | 568 |
| January 2026 | $17,956 | $15K–$21K | 476 |
| December 2025 | $17,998 | $16K–$22K | 360 |
| November 2025 | $18,991 | $16K–$23K | 287 |
| October 2025 | $19,000 | $17K–$23K | 263 |
| September 2025 | $19,915 | $17K–$24K | 228 |
| August 2025 | $19,995 | $17K–$24K | 256 |
2018 Bmw X3 inventory across the U.S.
Keep exploring X3 prices
2018 Bmw X3 · $19,347 typical · 28 listingsOther Bmw X3 years
Live 2018 Bmw X3 listings, priced by VIN
Every VIN links to a full market report: decode, active listings and the local price band. Shop 2017–2019 Bmw X3 listings on VehiSales →.
More 2018 Bmw prices
Frequently asked questions
Why do 2018 Bmw X3 prices range from $13,497 to $31,218 in California?
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 $16,853 and $21,248 — see the mileage and trim breakdowns above for where a specific vehicle lands.
How much should mileage change the price of a 2018 Bmw X3?
Expect roughly $300 less for every 10,000 miles on the odometer. A 60K-mile example should cost about $900 less than a 30K-mile one of the same trim — check the fair-price-by-mileage table above for your band.
Do Bmw X3 prices in California differ from the rest of the country?
Not much — California prices track the national average of $19,277 almost exactly.
How many 2018 Bmw X3 are for sale in California right now?
28 in total, nearly all pre-owned. Counts refresh daily from live dealer inventory.
How we calculate these prices
We track 28 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.
Want the original factory equipment and MSRP behind a specific car? Look up the original Monroney sticker for a 2018 Bmw →
Shopping for this car?
Check individual VINs before you buy — decode the exact trim and mileage, see every active listing, and how each price compares to the local market.