Mercedes-Benz S420 For Sale
6 Mercedes-Benz S420 are listed for sale (including 1 at auction), with asking prices from $10,995 to $34,975, averaging 94,791 miles (data through Nov 7, 2026). For context, the S420's market value runs $13,903 to $21,125 depending on year and condition, built from 33 verified auction sales, not asking prices.
One Mercedes-Benz S420 lot is at auction or coming up for sale in our latest check. When and where it closes, and the latest bid, are in the DriveIndex app with Pro ($19.99/month).
See the auction with Pro →Mercedes-Benz S420 Listings (5)
Last checked Nov 6, 2026
Asking prices as listed when last checked, not sold prices. Market values on DriveIndex come from verified completed sales.
Collector ($39.99/month) includes the Listing Analyzer: it scores any S420 ask against its mileage-adjusted fair value from verified sales, with the deal score and the exact dollar gap. Deal Radar lists the asks under fair value across the whole market.
Check the 2 1999 S420 listings with Collector →Not ready? A free account shows current values and recent sale dates.
Mercedes-Benz S420 For Sale: Frequently Asked Questions
How many Mercedes-Benz S420 are for sale?
6 Mercedes-Benz S420 listings are listed across the marketplaces DriveIndex tracks (last checked Nov 7, 2026).
How much does a Mercedes-Benz S420 cost?
Asking prices range from $10,995 to $34,975. The market value from verified completed sales runs $13,903 to $21,125. Asking prices and sold prices are not the same thing.
Is a Mercedes-Benz S420 listing priced fairly?
DriveIndex's Listing Analyzer scores any Mercedes-Benz S420 listing against its mileage-adjusted fair value from verified sales: the deal score, the exact dollar gap, and where the ask lands. The Listing Analyzer is a DriveIndex Collector feature.
When is the best time to buy a Mercedes-Benz S420?
DriveIndex measures each model's seasonal pattern across years of verified sales and identifies the best months to buy and sell, a DriveIndex Collector feature. Whether the S420 is appreciating, stable, or depreciating is the Value Signal, part of DriveIndex Pro.